I just bought a SVS SB-1000 subwoofer and connected it to the low pass output on USP-1 , with high pass out going to XPA-2. Before I connected SB-1000 I used Harrison Lab 12dB attenuators between USP-1 and XPA-2. I like the way the volume control improves on USP-1 with attenuators, Should I remove them or add an attenuator between the USP-1 and SB-1000? Or it can stay the way it is.
Certainly as you like it, nothing has to change. What are you missing with the current setup? Do you feel that the bass is overpowering or boomy currently? If so, you could try an attenuator between the USP-1 and sub. Or remove all the attenuators altogether. Try it and see what sounds best to your ears.
That said, I do not have experience of your pre/sub. Maybe someone who has the USP-1 and an SVS sub can chime in.
If you like how the attenuators reduce the agressive volume control of the USP-1 then you should continue to utilise them. You won't need one for the SVS SB1000 as it has an input volume control, so you can align it's volume with the left and right speakers.
Last Edit: Mar 15, 2016 14:54:00 GMT -5 by Gary Cook
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Thank you both for your quick responses. I tried with and without attenuators but it was inconclusive. I asked SVS support and got the same response: the volume control on SB1000 can be used exactly the same way as an attenuator to align the volume with the high frequency output (speakers). Now when I think about it I do not know why it was not obvious to me in the first place :). Thanks Andre