- PASSIVE DI
The Radial JDI is a warm sounding passive direct box that can transfer extreme signal levels without distortion while eliminating hum and buzz caused by ground loops.PRODI
The Radial ProDI is a high performance passive direct box that is ideally suited for bass and acoustic guitar to deliver a warm, distortion-free sound.Trim-Two
The Radial Trim-Two is a passive direct box, designed for use with laptop computers and other consumer type devices where the user has a requirement for a 'ready access' volume control for quick adjustments on stage.JDI Stereo
The Radial JDI Stereo is a passive stereo direct box designed to handle extreme signal levels without distortion of any kind.PROD2
The Radial ProD2 is a high performance stereo direct box designed to easily interface keyboards to the PA and recording system without noise.StageBug SB-2
The Radial SB-2 is a passive direct box designed for keyboards and active bass. Features stereo to mono mix function to save mixer channels.JDI Duplex
The Radial JDI Duplex is a stereo passive direct box that fully capable of handling any audio signal without distortion, artefact or noise.ProAV1 & PROAV2
The Radial ProAV is a passive direct box with stereo-to-mono merge function designed specifically for the audio-video integrator to reduce channel requirements.StageBug SB-5
The Radial StageBug SB-5 is a compact stereo direct box designed to accommodate laptop computers, tablets and other consumer audio products when amplifying the signal through a PA system.JD6
The Radial JD6 is a 6-channel rackmount direct box designed for keyboards in studio and live touring where optimal signal transfer is required without noise.ProD8
The Radial ProD8 is a high density 8-channel rackmount direct box optimized for professional keyboard rigs where optimizing signal transfer without noise is needed.StageBug SB5W
The Radial SB5-W is a passive stereo direct box designed to fit inside a standard electrical wall box and utilizing a Decora wall plate cover.
- ACTIVE DI
The Radial Firefly is a class-A direct box that combines a 12AX7 tube drive with transformer isolation to deliver spectacular warmth and character.J48
The Radial J48 is a 48 volt powered active direct box that delivers studio quality performance while eliminating hum and buzz caused by ground loops.JDX 48
The Radial JDX 48 is a guitar amp DI that captures the sound of the amplifier and speaker to deliver the tone of a 4x12 half-stack without the need of a microphone.USB-Pro
The Radial USB-Pro is a high-resolution DI box that converts sound files from a laptop and seamlessly transfers them to a pair of balanced audio outs.JDV MK5
The Radial JDV is a class-A direct box with a unique zero negative-feedback circuit that delivers unmatched signal purity for the most demanding recordings.J48 STEREO
The Radial J48 Stereo is a high performance active direct box with extra headroom and advanced grounding for professional touring and studio recording.PZ-DI
The Radial PZ-DI is a unique direct box that is specifically designed for acoustic and orchestral instruments.JPC
The Radial JPC is an active stereo DI with transformer isolated inputs to eliminate noise that is common with computers and consumer audio devices.Headload
The Headload is a combination load box and attenuator that is capable of handling up to 130 watts RMS of continuous power and peaks of 180 watts.PRO48
The Radial Pro48 is a high performance active direct box that is ideally suited for bass and acoustic guitars to deliver clarity without distortion or artifact.StageDirect
The Radial StageDirect is a state-of-the-art active direct box designed for musicians who require extra control when they are on stage.J33
The Radial J33 is a combination stereo phono preamp and direct box designed to interface turntables to professional audio systems.Headload Prodigy
The Headload Prodigy is a combination load box and DI that lets you perform or record at low volume with maximum tone.StageBug SB-1
The Radial SB-1 is an ultra-compact active direct box designed for acoustic guitar and bass that fits inside a guitar case!StageBug SB-4
The Radial StageBug SB-4 is a compact active direct box that has been optimized for use with piezo transducers.BT-Pro
BT-Pro™ is a Bluetooth® DI designed to capture the wireless transmission from a Bluetooth® device and convert the signal to a balanced line for use in a PA.JDX Direct-Drive
The Radial™ JDX Direct-Drive is a unique and powerful device that simulates the sound of a guitar amplifier.4-Play
The Radial 4-Play™ is a multi-channel direct box that has been specifically developed for multi-instrumentalists to enable them to quickly change instruments on stage.
The Radial X-Amp is a dual output class-A active Reamper that lets you take a pre-recorded track and send it through amps and pedals without noise.Reamp JCR
The Radial Reamp JCR is a high-performance passive Reamper that lets you take a pre-recorded track and send it through a guitar amp or pedal chain without noise.ProRMP
The Radial ProRMP is a passive Reamper that lets you take a pre-recorded track and send it through a guitar amp or pedal chain without noise.X-Amp 500 Series
The Radial X-Amp is a 500 series class-A active Reamper with isolated outputs that lets you send a pre-recorded track to two amps and re-record the new sound.Reamp KIT
The Reamp Kit combines a Radial J48 direct box for recording with a Radial X-Amp for Reamping amps & pedals to enhance the tone of your recorded tracks.SGI
The Radial SGI Studio Guitar Interface class-A line driver with load correction lets you send a guitar signal beyond 100 meters via balanced cable without noise.JD7
The Radial JD7 Injector is a class-A guitar distro/splitter with built-in Radial DI and Reamp that can drive up to seven amps or pedal chains simultaneously.JX44
The Radial JX44 Air Control is a wireless signal manager for concert stage that lets you remotely control 4 guitar inputs and 6 amp outputs at once.SGI-44
The Radial SGI-44 guitar interface is a balanced signal extender designed to send the signal from a wireless receiver to the pedalboard and back to the stage amp.
JS2 / JS3
The Radial JS2 and JS3 are high performance passive microphone splitters that lets you feed mixing consoles without signal degradation or noise caused by ground loops.PRO-MS2
The Radial ProMS2 is a high performance mic splitter that accepts a balanced microphone signal and sends it to three outputs simultaneously. As a passive device, there is no need for power.OX8
The Radial OX8 is an 8-channel rack mounted microphone splitter that lets you feed two mixing consoles without signal degradation or noise caused by ground loops.LX8
The Radial LX8 is an 8-channel rack mounted line level splitter that lets you feed two audio systems without signal degradation or noise caused by ground loops.JD7
The Radial JD7 Injector is a class-A guitar distro/splitter with built-in Radial DI and Reamp that can drive up to seven amps or pedal chains simultaneously.JX44
The Radial JX44 Air Control is a wireless signal manager for concert stage that lets you remotely control 4 guitar inputs and 6 amp outputs at once.mPress
The Radial mPress is a modular press box that can be expanded as needed to feed a community-sized press gallery or distribute audio for an international event.Exo-Pod
The Radial Exo-Pod is a passive broadcast splitter that can take the balanced line output from a mixing console and distribute the signal to 14 hand-held recorders, video cameras or wireless receivers.Catapult
The Radial Catapult is a 4-channel audio snake that lets you send analog or AES digital audio signals over standard Cat 5 or Cat 6 shielded twisted pair cable.LX-2
The Radial LX-2™ is a passive balanced line level audio splitter that allows you to easily send an audio signal to two different destinations at once without noise.LX-3
The Radial LX-3™ is a high-performance balanced line-level splitter designed to send one audio signal to as many as three destinations at once.
The Radial Twin-Iso is a two channel balanced line-level isolator that eliminates the hum and buzz caused by ground loops that is often encountered in audio systems.J-ISO
The Radial J-ISO & Pro-Iso are full bandwidth stereo interfaces that converts +4dB balanced line level signals to an unbalanced consumer level output.Pro-ISO
The Radial J-ISO & Pro-Iso are full bandwidth stereo interfaces that converts +4dB balanced line level signals to an unbalanced consumer level output.J+4
The Radial J+4 is a -10dB to +4dB stereo preamp that lets you boost a low output unbalanced signal and interface it with a balanced professional audio system.JPC
The Radial JPC is an active stereo direct box with transformer isolated inputs to eliminate noise that is common with computers and consumer audio devices.McBoost
The Radial McBoost™ is a high performance microphone signal booster designed to elevate the output of a typical dynamic microphone for greater transient response.SGI
The Radial SGI Studio Guitar Interface class-A line driver with load correction lets you send a guitar signal beyond 100 meters via balanced cable without noise.SGI-44
The Radial SGI-44 guitar interface is a balanced signal extender designed to send the signal from a wireless receiver to the pedalboard and back to the stage amp.STAGEBUG SB-6
The Radial StageBug SB-6 is a high performance 2-channel passive audio isolator designed to accommodate both balanced and unbalanced signals.STAGEBUG SB-7
The Radial StageBug SB-7 Earmuff Headphone Silencer lets you turn off one side of your headphones to stop the bleed.STAGEBUG SB-15
The Radial Stage Bug SB-15 High Performance Signal Buffer lets you drive guitar pedals without added noise and also powers 15V Tonebone pedals.ICECUBE IC-1
The Radial IceCube IC-1 is a balanced line level isolator designed to quickly eliminate hum and buzz problems in an audio system by simply inserting it into the signal path.DECODER
Decoder is a microphone preamp and Mid/Side stereo matrix that allows the user to easily create M/S recordings without having to re-configure a recording consoleSpace Heater
The Radial Space Heater is a single space 8-channel tube overdrive that can be used as a stereo summing mixer or as multi-channel studio distortion.Twinline
The Radial Twinline is a unique device that enables a guitarist to share effects pedals between two amps when using the amplifiers' built-in (rear-panel) effects loops.MR5
The Radial MR5 is a MIDI signal translator that allows you to use a MIDI controller to drive the JX44, JX42 and other Radial products that use the JR5 footswitch.
Radial studio products simplify the work-flow without affecting the signal quality to ensure creativity is not hampered during production.MC3
The Radial MC3 monitor controller is a 'straight wire' passive switcher that lets you control two sets of monitors, sub woofer and feed two sets of headphones.Gold Digger
The Gold Digger is a 4-channel mic selector that enables the engineer to quickly compare the sound of four different microphones while sharing the same preamp.Cherry Picker
The Radial Cherry Picker is a unique tool that simplifies the process of selecting the best preamp for use with a given microphone.
Guitar / Amplifier
Whether switching guitars on stage or amps in the studio, Radial offers a complete range of switchers from simple ABYs all the way up!JD7
The Radial JD7 Injector is a class-A guitar distro/splitter with built-in Radial DI and Reamp that can drive up to seven amps or pedal chains simultaneously.JX-42
The JX-42 is a compact guitar selector that lets you instantly switch between four guitars and two amps on stage.JX62
The Radial JX62 is a guitar and amp switcher designed for both wired and wireless guitars in a live concert touring environment.jx44
The Radial JX44 Air Control is a wireless signal manager for concert stage that lets you remotely control 4 guitar inputs and 6 amp outputs at once.JR5
The JR5 is a remote footswitch that lets you select guitars, amps or effects when used with the JX44 and JX42.JR2
The JR2 is a dual function remote footswitch that lets you switch or mute outputs, depending on the Radial device that is connected.BIGSHOT ABY
The Radial BigShot ABY is a true-bypass ABY switcher that toggles or combines two guitar amplifiers in phase and without hum & buzz caused by ground loops.BigShot I/O
The Radial Bigshot I/O is a true-bypass instrument selector that lets you switch between two sources and balance the signal level between them.BigShot EFX
The Radial BigShot EFX is a true-bypass effects loop switcher that lets you turn on or off two pedal-chains and take them out of the signal path when not in use.BigShot SW2
The Radial BigShot SW2 is a dual output remote control with choice of latching or impulse settings to control two amplifiers or effects.Twinline
The Radial Twinline is a unique device that enables a guitarist to share effects pedals between two amps when using the amplifiers' built-in (rear-panel) effects loops.
Radial addresses the fast paced world of live touring with a range of switchers for backing tracks, wireless systems and mixers.Relay Xo
Radial Relay Xo is a 1-in, 2-out switcher for balanced audio used with mic or line level sources as talkback and communication router.SW4
The Radial SW4 is a four channel balanced audio switcher designed for wireless systems, mixing consoles and digital guitar processors.SW8
The Radial SW8 is a backing track switcher that automatically switches between two playback systems to prevent disaster during a live performance.HotShot DM-1
The Radial HotShot DM-1 is a combination mic mute and switch that enables the artist to communicate to band members and techs via momentary footswitch.HotShot ABi
The Radial HotShot AB1 is an XLR balanced input selector that can instantly toggle between two input sources to one output via a latching footswitch.HotShot ABo
The Radial HotShot ABo is an XLR balanced output selector that can instantly toggle one input between two output destinations via a latching footswitch.JR2
The JR2 is a dual function remote footswitch that lets you switch or mute outputs, depending on the Radial device that is connected.JR2-DT
The JR2-DT is a desk-top version of the JR2. It features two top-mounted activator switches to control AB and Mute functions.BigShot SW2
The Radial BigShot SW2 is a dual output remote control with choice of latching or impulse settings to control two amplifiers or effects.
The Radial Phazer is an analog phase alignment tool that lets you combine two sources and bring the fundamentals together for a more natural tone.Phazer Bank
The Radial Phazerbank is a 4-channel analogue phase adjustment tool that enables the engineer to effortlessly adjust the phase between two microphones when double mic'ing a single source.PhazeQ
The Radial PhaseQ is 500 series phase alignment tool that lets you combine two microphones and bring them into perfect phase for a more natural tone.EXTC-SA
The Radial EXTC-SA™ is a stand-alone audio interface that lets you incorporate guitar effects into the realm of pro-audio recording.EXTC
The Radial EXTC is a 500 series effects send & receive module that lets you incorporate guitar effects into the realm of pro-audio recording.Tank Driver
The Radial Tank Driver is a wonderfully unique 500 series module that allows you to drive a balanced line level signal through the reverb tank in your Fender Twin amp!Vocoloco
The Voco-Loco is a foot-controlled effects loop that enables the lead vocalist, sax or trumpet player to incorporate guitar effects pedals into the signal path, just like an electric guitarist adds effects for soloing.Trimode
The Trimode tube distortion takes you from slight overdrive to full-on distortion. Think Mesa-Boogie in a pedal and switch instantly from rhythm to lead.Vienna Chorus
The Vienna Chorus is vintage bucket-brigade chorus that delivers old-school analog tone. Dual-mode controls lets you switch from slow to fast choral effects like a Leslie.
- 500 SERIES
Choose between Radial's award-winning racks for ultimate control over your signal path. Compatible with all 500 series modules, Radial racks are equipped with extra features for greater connectivity plus resettble electronic fuses to keep your gear safe!Workhorse
The Radial Workhorse is an 8-slot 500 series power rack with a built-in analog summing mixer, headphone amp and extensive patching capabilities.WR8
The Radial WR-8 is an 8-slot power rack that lets you load up to eight 500 series modules. Can be expanded with the WM8 mixer for full Workhorse capabilities.Powerhouse
The Radial Powerhouse is a 10-slot power rack for 500 series modules designed to provide maximum density for professional studio setups.SIXPACK
The Radial SixPack is a desk-top 6-slot power rack for the popular 500 series, designed to create the ultimate channel strip with 1600 milliamps of available current.Cube
The Radial Cube is a desk-top 3-slot power rack for the popular 500 series, designed to create the ultimate channel strip with 500 milliamps of available current.PowerStrip
The Radial Powerstrip is a 3-slot power rack for the popular 500 series, designed to create the ultimate channel strip with 500 milliamps of available current.
Preamps & EQs
Radial gives you a choice between tube and solid state preamps to suit your most demanding recording needs. Compliment them with choice of induction coil or discrete class-A equalizers to add creative soul, sparkle or fat bottom end.POWERPRE
The Radial PowerPre is a 500 series 100% discrete mic preamp with Accustate input control for low noise and transformer coupled output for added warmth.JDV-PRE
The Radial JDV-Pre is a 500 series class-A instrument preamp with variable load for magnetic, piezo and active sources and high-pass filter to eliminate resonance.PowerTube
The Radial Powertube is 500 series 100% discrete class-A preamp with high voltage 12AX7 tube gain stage and transformer coupled input for vintage character.Premax
The Radial PreMax is a 500 series channel strip tha combines a state-of-the-art preamp with a 3-band EQ for easy signal manipulation in post production and recording.Q3
The Radial Q3 is a 500 series induction coil EQ that brings the character and excitement of old-school vintage EQ to your recordings with over 1700 EQ curves.Phaze-Q
The Radial PhaseQ is 500 series phase alignment tool that lets you combine two microphones and bring them into perfect phase for a more natural tone.Twin-Servo
The Radial Jensen Twin-Servo & 500 series preamplifier is an updated version of what may well be the most spectacular preamp ever made.PreComp
The Radial PreComp is a 500 series channel strip that combines a state-of the-art preamp with a full-function VCA compressor for dynamic control over the signal.Q4
The Radial Q4 is a 500 series state-variable, 100% discrete class-A parametric EQ that brings character and warmth to your recordings with minimal artifact
Effects & Routing
The 500 series is all about creative use of signal processing. Radial opens the door with compressors, signal routers, cross-over filters, effects interfaces, phase alignment tools and amp simulators. Finally… amazing tools that let your imagination run wild!EXTC
The Radial EXTC is a 500 series effects send & receive module that lets you incorporate guitar effects into the realm of pro-audio recording.Shuttle
The Radial Shuttle is a 500 series patch and insert panel that lets you bring balanced and unbalanced signals in and out a 500 series power rack.Komit
The Radial Komit is a 500 series one-knob compressor-limiter designed to get great results instantly and add crunch and distortion for unque effects.X-Amp
The Radial X-Amp is a 500 series class-A active Reamper with isolated outputs that lets you send a pre-recorded track to two amps and re-record the new sound.ChainDrive
The Radial ChainDrive is a 500 series signal distribution amplifier that lets you send balanced or unbalanced signals to four outputs and control them independently.Tank Driver
A unique module that lets you to drive a balanced line level signal through the reverb tank in your Fender Twin! Drive spring reverbs of all types and deliver the long trailing shimmering effect that is only possible with a true spring.JDX-500
The Radial JDX Reactor is 500 series guitar amplifier interface that lets you capture the tone of a guitar amp and cabinet without a microphone.Submix
The Radial SubMix is a 500 series mixer that lets you combine 4 instruments such as keyboards or effects into a single audio channel via front panel controls.Tossover
The Radial Tossover is a 500 series frequency divider that lets you separate and process low and high frequencies separately via fully variable controls and slopes.
- CABLES & SNAKES
JX44 Air Control™ Using & Applications
The Radial JX44 Air Control is a powerful guitar switcher and router that's easy to use! This short-form manual is designed to help familiarize you with the JX44 and get you up and running quickly. For more detailed information we invite you to download the complete JX44 User Guide.
The Radial JX44 is a professional 19" rack device designed primarily for guitarists to manage their live rigs when touring. It has 4 inputs for guitars and 4 outputs to drive multiple ampliﬁers. In between the inputs and outputs, facilities have been added to help manage pedals, rack effects and tuning. The JX44 can be used on its own or be equipped with the optional Radial JR5 remote footswitch to choose guitars, select ampliﬁers and control effects.
- INSTRUMENT INPUTS: The JX44 starts with a four input instrument selector for wired and wireless guitars. The JX44 can have all your instruments ready and waiting and the optional JR5 remote footswitch allows hands free operation with big, bright LED indicators that are easy to see on stage.
- AMPLIFIER OUTPUTS: These four outputs can connect up to six amplifi ers giving you an incredibly fl exible multi-amp rig. You can manually select amps or program a bank to recall a group of amps with the front panel controls or JR5 footswitch. A pristine Class-A signal path and transformer isolation offer amazing Radial quality sound with immunity from hum and buzz caused by ground loops.
- EFX LOOP: Patch rackmount effects and pedals into this local hi-impedance effects loop and all your instruments can use them. The local effect loop can be assigned to each amplifi er output.
- SGI-44 LOOP: This balanced long-haul effects loop works with the optional SGI-44 to connect a pedalboard up to 100 meters (300 feet) away from your amps without introducing noise or signal loss.
- TUNE & MUTE: The JX44, JR5 and SGI-44 offers tremendous tuning and mute options: You can connect a rack and pedalboard tuner plus mute the guitar from fi ve different places.
- DIRECT OUTPUT: The built in Radial ProDI direct box has many uses on-stage and in the studio. This one has been optimized with features for the guitarist like pre/post effects loop and assignment to one or all instrument inputs.
- X-AMP INPUT: The JX44 lets you tap into the huge tone shaping and post production possibilities of re-amping. The X-AMP lets you send guitar tracks from your multi-track to the JX44 and route the signal to your effects and amps for re-recording.
As with all audio equipment, we recommend that levels be turned down and system components be turned off before making connections as this will help eliminate power-on transients that could damage sensitive electronics and loudspeakers.
Although the JX44 is absolutely loaded with features, it is in fact very easy to use. Start by following this simplified flow chart to get a ‘feel’ to how it will work in your system.
The Radial JX44 comes equipped with an external power supply. As soon as you connect it to the system, it will turn on. As soon as you power up the JX-44 enters manual mode and automatically routes the first input to the first output. Centered on the front panel, the System Monitor provides the status for several functions. The two Status LEDs will flash every 8 seconds to indicate the internal microprocessor is working normally.
The four inputs receive signals from the guitars or basses. These can be ‘direct wired’ to the instrument or come from a wireless system. Instruments are usually connected using the rear panel inputs. This keeps the guitar cables out of the way during hectic shows. However, inputs-A and B feature front panel switching jacks that will override the rear panel connection when needed.
The four inputs work in an exclusive fashion whereby only one input may be active at a time. This 'safety feature' prevents noise from inactive guitars from entering the system. An input is selected by pushing the ON switch for the desired instrument. The 'signal' present LED in the System Monitor will flash as you play to let you know that your guitar signal is present.
Drag is a load correction circuit that allows you to reintroduce the natural loading between your guitar and amp. We chose to add Drag control on inputs A and B for the ‘real cable’ purist to achieve the tone of a direct connection before buffers were added to the signal chain. When a guitar is connected to an amplifier, a circuit is created. The electro-magnetic impulse generated by the pickup goes to the amp, is loaded by the amplifier’s input buffering circuit and the cable capacitance before it returns to the guitar. Just like a light bulb the circuit must be completed to work properly. When a buffer like the ones inside the JX44 or built into a wireless system are introduced, the direct connection between the guitar and amp is lost and the tone changes. Drag control can correct the loading and produce the natural tone of your instrument and amplifier.
Inputs-C and D are equipped with a TRIM control that lets you back down the input levels so that you can better balance active instruments with passive. For instance you may have a Fender Stratocaster with passive single coil pickups connected to inputs A and B and then a louder active instrument with EMG pickups connected to input C. For the ‘unplugged set’, you may have an acoustic guitar with an on-board active preamp going to input-D. In such a setup the Trim controls are used to reduce the level of the louder active instruments until they match the passive instruments allowing for smooth instrument change over.
Connecting the Tuner:
After connecting guitars you can move to connecting a tuner. This is done via the TUNER output jack on the rear panel. The TUNER out is always on and buffered to isolate the electronic tuner from the signal chain. For silent tuning and instrument change over the system can be muted using the front panel MUTE switch. Below the TUNER OUT is a footswitch jack that can remotely mute the outputs by connecting a normally-open momentary footswitch with a standard mono ¼” jack. You can also mute the system by using the JR5 footswitch.
The JX44 has four amplifier outputs. Outputs 1 and 2 are mono while outputs 3 and 4 have been augmented with dual output jacks labeled (3a/3b & 4a/4b). The dual jacks allow easy connection of two amp stacks or stereo effects devices to outputs-3 and 4.
Amplifier outputs are selected by pushing the ON switch for the desired amp. You will notice that the JX44’s outputs are ‘inclusive’ which means that you can have ‘any or all’ amps on at the same time. Connect amps as needed and set each one at a low volume level for testing. Start with OUTPUT-1 and listen for hum or buzz.
All of the JX44 outputs are transformer isolated to help eliminate noise caused by ground loops. Start by testing each amp individually and listen for hum or buzz. If you hear noise depress the recessed LIFT switch on the front panel. Use a tweaker or small screw driver to access the recessed controls. In most cases this will reduce hum caused by ground loops. Continue the process for the other amplifier outputs until all your amps are setup for the least noise. If you still encounter noise, check your cables. Second quality cables can often have poor shielding which can allow noise to enter the system. This is particularly acute on busy stages where power transformers abound in amplifiers, light dimmers and in other electromagnetic producing devices.
For best results limit high impedance cables to a maximum of 20 feet. If the noise persists have an amp tech check the amplifiers power cable to ensure the 3rd-prong safety ground is connected to the amps metal chassis. Loose or missing chassis grounds can cause noise and be dangerous.
Connecting electronic devices ahead of and after the JX44 can also form ground loops causing hum and buzz. To minimize noise in a complex setup it’s a good idea to power all your amps and effects from one 120VAC mains outlet. Power bars are an easy way to connect all your gear to one grounded outlet.
The JX44’s amplifier outputs operate in two different modes: Manual mode and Bank mode. On power-up the JX44 enters manual mode allowing you to turn on as many amps as you like by simply depressing the front panel switches. This is ideal for guitarists that enjoy the freedom of selecting their amps at will depending on the creative moment. Bank mode lets you program various ‘scenes’ so that you could toggle between one amp and two others with a single switch.
In program mode, the JX44 lets you program each of the four amplifier outputs into banks whereby hitting a single ON switch can activate any or all amps at once. This is ideally suited for players that use two or three amps on stage and toggle between them all night long to switch from clean, rhythm or lead settings.
The Radial JX44 is equipped with six 180º polarity reverse switches – one for each output. This allows you to set the absolute phase of your amplifiers so all your loudspeakers are moving in the same direction (in-phase). This means that when you play a note, all of the speakers will push out (in the same direction) at the same time. Amps that are out of phase will exhibit phase cancellation. Phase cancellation is most audible in the bottom end, you will find that when amps are in phase, they will sound fuller and have more low frequency content. When out of phase, they will sound thinner and more spacious.
The best way to set the phase on your amps is to start by establishing the phase of your main amp on output-A as the reference. You should then test each amp in succession as follows: 1~2; 1~3; 1~4. If you have more than one amp connected to outputs 3 and 4, you would still follow this process and then compare 3a to 3b by only switching the 3b polarity switch. Repeat for amps 4a and 4b. When done, all amps should be in absolute phase and can be used together without cancellation.
Using the effects loops:
Now that all your guitars and amps are working, you are set to add effects to your system. The effects loop bus in the JX44 is controlled via the amplifier outputs. This allows the effects to be assigned via the front panel to each amplifier. This diagram shows a typical setup where the EFX LOOP is activated along with the amplifiers it is assigned to. The EXF LOOP LED in the System Monitor will illuminate when an amplifier assigned to the effects loop is active.
Where this really gets interesting is that you could also remotely turn the effects on and off by assigning the effects to amp-4 and then turn this on via the JR5 footswitch when needed. For example, you could set amp-1 to be connected to the effects while amp-2 could be set dry. In this setup, Amp-1 output could drive some pedals through a Fender Twin and Amp-2 out could drive a Mesa Boogie with distortion for soloing. For thunder, Amp-3 out could drive a stereo pedal and then a pair of Marshal stacks. For effects, you could have a digital processor of sorts connected via the Amp-4 out which could be turned on as needed.
Using the JX44 with the SGI long-haul effects loop:
Concert stages are often huge and running cables long distances can add severe noise while disrupting the tone. This is particularly acute when sending hi impedance signals from a wireless bay, under the stage to the pedals and then back to the amps. To solve the problem, the JX44 comes equipped with a long-haul effects loop called the SGI that is specifically designed to drive distant pedalboards. It works by converting the guitar signal to a low impedance balanced line at the SGI output and reconverting it to guitar level using the optional SGI-44 at the pedalboard.
The SGI employs standard XLR mic cables between the JX-44 and SGI-44 and standard ¼” guitar cables to connect the pedals. As an added convenience, the SGI-44 is also equipped with a tuner out so that these noisy devices are taken out of the guitar signal path. Start by connecting the XLR cables to the SGI-44 and then connect your cables. Turn on the SGI buss and listen.
The SGI interface is particularly advantageous in the studio when you want to play guitar while sitting in the control room and drive distant amps. All you do is connect your guitar to the SGI-44 input and make the XLR TX connection to the JX44. The JX44 will now take your guitar signal and drive amps effects or combinations at will.
Using the JX44 with an acoustic guitar:
The JX44 is equipped with a world class Radial direct box. This can be used to capture all of the guitar performances for re-amping in post production, for sending the signals to a mic-preamp and say a digital workstation for special effects or the DI can be specifically assigned to Input-D for use with an acoustic guitar or an instrument that you would like either to process separately or simply send a clean version to the PA system such as an acoustic guitar. This set up would look something like this:
Here, the Strat and the ES335 could be routed to the Twin and for effects, be sent to a Line-6 Pod. For the a natural delta blues effect, the Dobro could be routed to a Fender Champ and to output 4 which could be connected to another direct box. When the acoustic guitar is needed, the Martin could be routed to the JX44’s built-in DI and then both of the direct feeds would then be sent to the PA system and monitors.
Using the JX44 in post production:
Another handy feature on the JX44 is the built-in X-Amp. The X-Amp is a re-amping device that allows you to take a prerecorded track and send it out to guitars and effects during the recording or post production phase. The cool thing about re-amping is that the artist can concentrate on the performance and then worry about the sound after. Best of all, as the song is built up, new or alternate tonal structures can be created to better suit the track.
The process is simple: While the guitarist is playing, you would take a direct feed from the JX44 using the Direct Box output. This would be sent to a preamp or mixer which would feed a spare track in the recording system. After the tour, the clean track would then be sent back into the JX44 via the XLR input by turning on the X-Amp function. A level control lets you adjust the level going into the JX44 which then will feed all of the Amp outputs simultaneously.
Radial JR5 Remote Footswitch:
The Radial JR5 footswitch is a heavy duty foot controller is equipped with five footswitches, two XLR connector ports and a series of LED indicators. Inside the JR5 is a very sophisticated micro-processor that does all of the real work and is equipped with non-volatile BANK memory to save your amp scenes. As soon as you make the XLR connection to the JX44 the JR5 will automatically configure itself for either guitars or the amps depending on which port you connected to. Power is derived from the JX44 through the XLR cable so local power is not required for the JR5.
Using the JR5 to select guitars:
When you connect the JR5 to the guitar port, it will automatically configure itself to let you remotely turn on and off the guitar inputs. Like the front panel input controls, the four JR footswitch also behave exclusively turning one input off when a different instrument is selected. So if input-A is active and you depress footswitch 3, input-A will turn off and immediately turn on input-C. If you depress input-C, the JR5 will mute the input temporarily to allow you to tune. The JR5’s Mute switch is ignored when the JR5 is connected to the guitar port as it is redundant.
Using the JR5 on amplifiers:
When you connect to the amplifier remote port the JR5 will automatically reconfigure itself to select amps in a matter of seconds. In amp mode, the JR5 footswitches become inclusive whereby you can have any or all amps on at the same time. When connected to the amps port the center MUTE footswitch duplicates the front panel control and will silence all outputs except the TUNER out.
Manual, Bank and Programming Modes:
The JX44 and the JR5 both feature the ability to operate in manual or bank modes and both can be programmed to recall their own set of BANKS. In manual mode, you can turn on or off as many amps as you like by simply depressing the footswitches. This is ideal for guitarists that enjoy the freedom of selecting their amps at will depending on the creative moment.
In program mode, the JR5 lets you program each of the four footswitches into four banks whereby hitting a single footswitch can activate any or all amps at once. This is ideally suited for players that use two or three amps on stage and toggle between them all night long to switch from clean, rhythm or lead settings. In bank mode, you can set up amp scenes like this:
Scene Amp-1 Amp-2 Amp-3 Amp-4 1 ON - clean amp 2 ON - solo amp 3 ON - crunch rth ON - crunch rth 4 ON - clean amp ON - solo amp
Because of the JX44 architecture, you can also assign one of the amplifier on-off switches to act as a remote on-off for the effects loop. For example, to make this work using the amp-4 buss, you would connect your amps to outputs 1, 2 and 3 and depress the ‘loop on’ function on the JX44 output-4. (Make sure it is not assigned to the other outputs!). Now, whenever you turn on the amp-4 output, the effects loop buss will turn on and you will have your effects. This can work in manual mode or be programmed as part of a scene. In this case, you could set up your system like this:
Scene Amp-1 Amp-2 Amp-3 Amp-4 1 ON - clean amp 2 ON - solo amp 3 ON - crunch rth Effexts-ON 4 ON - crunch rth Effexts-ON
To program the JR5, it is a matter of holding down the mute switch to enter ‘program mode’. Lights will flash to prompt you to turn amps on and move you through the process for each of the 4 scenes. For details, you can download the full PDF owner’s manual.
WARNING - Possibility of electrical shock hazard exists. Please read the warnings in the user manual before attempting to connect amplifiers to this device.