Radial Studio-Q User Guide
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Using The Studio-Q™

The Studio-Q is a clever box that is designed to provide a basic talkback system for those that have a recoding studio, but may not have a large console with built-in talkback in the control room. It easily integrates with recording workstations by connecting an available output. Once connected it allows the engineer to speak on top of the program material to the artist using either the internal mic or an external one. The mic may be turned on using the main switch or activated remotely with a footswitch for hands-free operation. Once in use, you will ask yourself how you ever managed without it!

Making connections

As always, turn off your audio equipment or turn down all volume controls before making connections. This will help you avoid plug-in and turn-on transients that can damage more sensitive components like tweeters. There is no power switch on the Studio-Q, simply connecting the power cable from the 15VDC supply will automatically turn it on. Check for power by depressing the MIC switch. The LED above will illuminate. A handy cable clamp is provided to lock the cable and prevent accidental disconnection.

Connect the output from your recording system to the Studio-Q using either balanced ¼" TRS or unbalanced ¼" TS cables. A balanced connection will typically yield about 6db more gain. From the Studio-Q, connect the program output to your headphone amplifier.

Testing the audio

We suggest you set the Studio-Q controls to the start position as follows:

  1. Set the recessed DIM control to 12 O'Clock
  2. Set recessed INT-MIC trim control to 3 O'Clock
  3. Set the master MIC level to 7 O'Clock (off)
  4. Set the PROGRAM level to 7 O'Clock
  5. Connect a set of headphones to your headphone amp

To begin, set a track to play and slowly increase the master PROGRAM volume on the Studio-Q until a comfortable setting is found. Depress the TALKBACK switch, talk at a normal level and slowly turn up the master MIC level until you can hear your own voice comfortably over the music. You can also adjust the DIM control so that when the talkback mic is on, the program material is reduced to a comfortable background level or even off.

Adding an external mic

The Studio-Q is equipped with a second mic input that will also feed the headphone system, allowing a producer or band member to speak to artists. This is designed for a standard dynamic microphone. Turning on the producer mic can be done via a remote footswitch like the JR1-M™. To use the talkback button to activate an external mic, engage the REMOTE ON BOTH MICS recessed switch on the right side of the Studio-Q. To test, follow the same procedure as above. Then set the recessed EXT-MIC level to 7 o’clock (off) . Press the TALKBACK switch and speak into the external microphone while slowly bringing up the EXT-MIC level. You will now want to compare the output between the INT and EXT (internal and external) microphones to make sure they are reasonably well balanced. You will then use the master MIC volume control to set the final gain. If you wish to only hear the output of the external microphone, simply turn the INT-MIC control fully counter-clockwise to mute it completely.

Using the Remote Control

There are two reasons to have a remote footswitch. The first is that for some studio engineers, they prefer to switch the talkback mic on or off using a footswitch, as this allows them to be twisting knobs and pushing a mouse around while talking. The other is for the producer. He may be sitting at the back of the room talking into an external mic where he cannot reach the Studio-Q, and being able to turn on the mic using a footswitch makes this easy. In both cases, the footswitch input improves productivity!

Radial makes a footswitch called the JR1-M™. This momentary footswitch is able to control the Studio-Q remotely by connecting a simple ¼" TS cable. The JR1-M can be set up in two modes, one with LED and one without. For use with the Studio-Q, you must set the footswitch to operate without LEDs as they will not receive power from the Studio-Q.

The difference between a momentary and a latching footswitch is that the momentary switch will automatically turn the mic off once it is released while the latching type requires a second foot-stomp. Both types will work with the Studio-Q.

Using a footswitch with the Studio-Q is as simple as plugging it into the REMOTE IN ¼" connector on the back of the unit. In normal operation, the footswitch will only activate the external microphone, allowing a producer at the back of the room control over their microphone only. When the REMOTE ON BOTH MICS recessed switch on the side of the Studio-Q is activated, then any connected footswitch will activate both microphones simultaneously.

Using the remote dry contact

The REMOTE OUT connection on the Studio-Q allows an external device to receive a switching signal when the TALKBACK switch is pressed, allowing connection to a relay or beacon that can be used to attract attention when needed.

There are two ways to set up the dry contact output:

  1. Switch in OUT position – When the Talkback switch is pressed, this provides 12V DC at the remote out jack to operate a small light or to trigger a relay. The maximum current available at the output is 200mA. This output is NOT isolated from the internal circuitry of the Studio-Q. Be careful, as grounding either conductor anywhere may cause a ground loop.
  2. Switch in IN position - When the Talkback switch is pressed, this provides a dry contact closure that is totally isolated from the internal circuitry of the Studio-Q. The line coming from this output may be exposed to a maximum peak voltage of 30V with a maximum current load of 500mA.