ProAV1 input panel with thru jacks
ProAV2 Stereo input panel

Radial ProAV1™ and ProAV2™ development

Developing the Radial ProAV1 and ProAV2 really came from our trying to come up with an easier way for technicians to get the job done fast and efficiently. Truth be known, at the end of the day, although we all appreciate great sound, often times, the win comes from getting things working without noise, making sure the client is happy, finishing the shift and going out for a beer!

Keeping it simple
The direct box's primary role is converting an unbalanced high impedance signal to a balanced, low impedance, microphone level (-50dB) which is then fed to a mixing console. This ensures that when microphone and DI signals are sent along the same multi-core snake cable one will not induce noise or cross-talk into the other. By employing consistent signal levels throughout, it makes it easy to cross-patch when trouble shooting.

Both the ProAV1 and ProAV2 are super easy to use. The passive circuit means that you do not have to find local power or turn the phantom power on the mixer. Plug in, get sound. No mucking about. The engine is a custom wound Radial transformer. Transformers are particularly well equipped at handling buffered devices such as computers, CD players, keyboards and video players that more often than not, have plenty of signal. In fact these AV devices can often overload more sensitive electronics. Transformers do not 'square wave' like a buffer, but gradually distort as the transformer core saturates. This smoothes out the sound acting somewhat like a limiter. This makes it more forgiving and therefore a great choice when working with novices.

Great Connections
There is nothing more frustrating than not being able to find the right interface cable. And in today's world of audio-visual presentations, there is no telling what kind of connector you may need to get a job done. Computers and iPods come with 3.5mm stereo jacks, CD players, video decks and DJ mixers are usually outfitted with RCAs, while keyboards, acoustics and bass guitars use ¼" jacks. We solved the problem. We put them all in! Both units are equipped with tons of connectivity. And because the ProAV1 is mono, we had space to add an XLR input to make it easy to connect pro balanced gear too!

Built to last
Finally, these 'Swiss Army knives' have to be built tough to handle the day-to-day 'warfare' that happens on the front line. DI boxes get tossed around, kicked, they fall off desks… no respect! So we had to make sure these guys were made tough: Solid steel outer shell, internal I-beam frame, dual sided circuit board, steel encased switches, glass-nylon connectors… there is simply no equal. By building our DI boxes this way, they last longer, and therefore stay working without service. With a three year warranty, it actually saves us money in the long run!

The ProAV2 is stereo. Two fully discrete channels or if you wish, dual mono. Because it has two transformers it is more expensive. This is a great choice for all round stereo connectivity.

The ProAV1 is mono and designed for use in applications where true stereo is not required. This can be a boardroom, classroom, AV presentation – in fact anywhere that you have a mic input available, the ProAV1 makes it easy. The passive stereo to mono summing does the work.