The AUX-1 is a microprocessor powered Auxiliary Input controller that simplifies adding an audio input to original radios. It has three triggers that can be used independently or in any combination to switch the radio over from normal operation to the auxiliary input. The three triggers are a VOX, power cycling and a switch input. The VOX circuitry and algorithms are based on the superior VOX implementation of the FMR-1 radios. It is extremely sensitive and extremely good at rejecting noise. This results in no switching back to the radio during quiet audio passages.
The audio output level from the AUX-1 is very high to match the levels of early tube radios. Whereas directly connecting an MP3 player to the audio amplifier on some tube radios results in low volume and poor performance, the digitally controlled amplifier on the AUX-1 easily matches the levels of any radio.
Full protection against reverse battery and over power, the AUX-1 is nearly indestructible. Through cleaver design, the AUX-1 is compatible with 6V/12V positive/negative ground radios resulting in only one board being required for all installations.
As with all Aurora Design products, the VBx-1 is designed to SAE specifications and built in the USA at an ISO9001:2000 facility.