HOME THEATER BYPASS INPUT MODE
The preDAC includes a Home Theater Bypass (HTB) input mode that is designed
to integrate with a “surround-sound” system to utilize the amplifier connected to the
preDAC to power the front left and right speakers for all sources. When AUX-1 is set
to HTB input mode, the signal passes from the front left and right analog outputs of
the Surround- Sound Processor (SSP) or Audio-Video Receiver (AVR) to the preDAC
+ power amplifier and the speakers connected to it. This allows the power
amplifier to be enjoyed as an “audio-only” system with the sources connected to it and
to also be utilized at the amp when playing video sources connected to your
SSP or AVR. When this input is set to HTB input mode, the LED is lit green - indicating
that the preDAC’s volume control is bypassed and the volume control in the SSP or
AVR must be used to control the overall system volume level. When this input is set
to AUX-1, the LED is lit blue - indicating that the preDAC’s built-in volume control is
in the signal path and should be used to control overall volume level of the source
connected to this input.
To set up Home Theater Bypass:
1. Turn off the Surround-Sound Processor (SSP) or Audio-Video Receiver (AVR) and
the preDAC and the power amplifier.
2. Connect the front LEFT and RIGHT preamp output from the SSP or AVR to the
AUX-1/HTB input on the preDAC.
3. Turn on the preDAC and the power amplifier and select the AUX-1/HTB input.
4. Press and hold the AUX-1/HTB button for ~5 seconds to engage the HTB input
mode, indicated by the input LED turning green.
5. Turn on your SSP or AVR and calibrate its speaker output levels with the HTB input
on the preDAC selected. This will ensure that the relative output levels of all the
speakers are maintained when watching video sources.
When listening to sources connected to your SSP or AVR, simply select the AUX-1/
HTB input on the preDAC. When listening to any other sources connected to the
preDAC, simply press the corresponding input button on the preDAC
.
Caution: when the preDAC is in HTB input mode, the SSP or AVR is in complete
control of the overall system volume level. If extra care is not taken, significant damage
to the speakers or power amplifier may occur. Peachtree Audio does not accept any
responsibility for damage caused by improper setup or use of this feature.
Connect Line-level (RCA style) front left and
right outputs from the SSP or AVR to the
AUX-1/HTB input on the preDAC.
15
preDAC
Power amplifier
