2. amps-preamps
  3. 180684-92770

AHB2/Sansui Receiver Pre-out Sound without using volume pot

Hello!

I have fully restored Sansui 9090 that i'm using as a preamp. I've split the single pre-outs so that I can use two subs. Works fine and sounds awewome.

The mains amp is a benchmark ahb2.

Subs are both powered...Hsu.

I've noticed when the mains amp is off and the receiver volume dial is on zero, the subs are already amplifying the audio signal entering the receiver via a schiit audio DAC.

Any suggestions greatly appreciated

Thank you

JKT

johnkent3

Showing 2 responses by avanti1960

avanti1960
1,545 posts
 

Just to be clear you have removed the U jumper between the pre-out and main-in and have each output Y split to feed the amp and sub for each channel? 

What happens when the AHB2 is on and zero volume?  Any sound from the DAC? 

If so, there is some bleed through the volume pot because the DAC output voltage is high.  Not a huge deal.  

I assume that if you turn the Sansui off, the subs quiet down?  

 

avanti1960
1,545 posts
 

Is the subwoofer playing musical beats and notes or is it a steady drone?  

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