B1 Subwoofer (mono) out

bassnkeys · 19th September 2011, 04:55 PM

I built a B1 buffer with no source selector to keep it as simple as possible. It sounds great... compares favorably to my friends Audio Research LS15.
I am wondering if I can sum the hot outputs to create a mono line out to a subwoofer that is still controlled by the attenuator?
Thanks.

jonparkhurst · 19th September 2011, 05:06 PM

I didn't sum, but had two sets of outputs on mine, so then i could stereo a sub or two, works fine for me. I don't see an issue at all with summing and then having a mono out.

JP

bassnkeys · 20th September 2011, 12:56 AM

Thanks. I will try using external patch cords first and take a listen. If it flies I'll install a proper jack on the back.

tinitus · 21st September 2011, 09:21 PM

don't know your sub amp, but doesn't most plate amps have stereo RCA/phono input, and thus the signal is 'summed' by sub module

bassnkeys · 22nd September 2011, 02:44 PM

I am trying to bypass any connections between my main power amp and main speakers.
My goal is to have a separate parallel line to feed a simple mono sub.

19th September 2011, 04:55 PM	#1
bassnkeys diyAudio Member Join Date: Feb 2011 Location: MN	B1 Subwoofer (mono) out I built a B1 buffer with no source selector to keep it as simple as possible. It sounds great... compares favorably to my friends Audio Research LS15. I am wondering if I can sum the hot outputs to create a mono line out to a subwoofer that is still controlled by the attenuator? Thanks.

19th September 2011, 05:06 PM	#2
jonparkhurst diyAudio Member Join Date: Dec 2010 Location: Wisconsin	BQ I didn't sum, but had two sets of outputs on mine, so then i could stereo a sub or two, works fine for me. I don't see an issue at all with summing and then having a mono out. JP

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20th September 2011, 12:56 AM	#3
bassnkeys diyAudio Member Join Date: Feb 2011 Location: MN	Thanks. I will try using external patch cords first and take a listen. If it flies I'll install a proper jack on the back.

21st September 2011, 09:21 PM	#4
tinitus diyAudio Moderator Join Date: Nov 2005	don't know your sub amp, but doesn't most plate amps have stereo RCA/phono input, and thus the signal is 'summed' by sub module

22nd September 2011, 02:44 PM	#5
bassnkeys diyAudio Member Join Date: Feb 2011 Location: MN	I am trying to bypass any connections between my main power amp and main speakers. My goal is to have a separate parallel line to feed a simple mono sub.

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