AUDIOPHONICS HC TRIGGER SWITCH MKII Home Cinema Power Trigger Symmetrizer / Desymmetrizer

Audiophonics HC Trigger Switch MKII: Hi-Fi input

The part of the HC Trigger Switch MKII dedicated to receiving the signal from a HiFi source has a stereo XLR input, which is the active one by default.

For the Hi-Fi section, output triggers can be activated in two ways: Auto or Trigger.

• In Trigger mode, reception of a 12V trigger signal from your Hi-Fi preamplifier is transferred to the output triggers.
• In Auto mode, the detection of an audio signal above -60dB triggers the output triggers.

Audiophonics HC Trigger Switch MKII: Dual trigger output

The HC Trigger Switch MKII has two output triggers, so it can be used in a dual-mono configuration.

Outputs include simultaneously active RCA and XLR outputs:

• The “home cinema” signal, natively in RCA, is buffered and symmetrized by a pair of OPA1642 circuits to be available on the XLR output.
• The “Hi-Fi” signal, natively in XLR, is buffered and desymmetrized by a DIP8-mounted LM4562 AOP before being made available on the RCA output.

The original home theater / Hi-Fi application can of course be used to mix two audio systems, as long as the RCA system has a trigger output to switch the input.

As the RCA and XLR outputs are active at the same time and perfectly independent, you can also envisage a configuration involving bi-amplification.