Sure 4x100 as 2.1 setup

tacobeast · 17th April 2011, 07:44 PM

I am wanting to run a sure 4x100 amp in a 2.1 configuration for computer speakers. Since the outputs can't be bridged I was just thinking that I could run a DVC sub off channel 3/4, would that work, or is there a better way? Also I will need to wire up a pot for volume control. Is there a wiring diagram that shows a master volume control and then also a fade control to control the sub relative to the main speakers? Thanks for your help!

Arty · 17th April 2011, 08:13 PM

DVC sub is a nice idea.
That should work.
or 2 subs, if you like.
Or, if you are short in space / wanna fancy things, an isobaric sub may be even a verry nice choice.

Suposedly You can wire up 2 pots.
1 as master volume, and the other to controll the sub.
Sub's pot takes input from the master pot output.

sofaspud · 17th April 2011, 08:19 PM

It seems like a workable idea to me. I would just use 2 regular pots for the L-R channel inputs (so I also had balance control) and a dual-gang pot for the sub inputs.

Cal Weldon · 23rd April 2011, 04:03 PM

I have moved this thread over here and closed the other one.

17th April 2011, 07:44 PM	#1
tacobeast diyAudio Member Join Date: Apr 2011	Sure 4x100 as 2.1 setup I am wanting to run a sure 4x100 amp in a 2.1 configuration for computer speakers. Since the outputs can't be bridged I was just thinking that I could run a DVC sub off channel 3/4, would that work, or is there a better way? Also I will need to wire up a pot for volume control. Is there a wiring diagram that shows a master volume control and then also a fade control to control the sub relative to the main speakers? Thanks for your help!

23rd April 2011, 04:03 PM	#4
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	I have moved this thread over here and closed the other one. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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17th April 2011, 08:13 PM	#2
Arty diyAudio Member Join Date: Feb 2011	DVC sub is a nice idea. That should work. or 2 subs, if you like. Or, if you are short in space / wanna fancy things, an isobaric sub may be even a verry nice choice. Suposedly You can wire up 2 pots. 1 as master volume, and the other to controll the sub. Sub's pot takes input from the master pot output.

17th April 2011, 08:19 PM	#3
sofaspud diyAudio Member Join Date: Nov 2005 Location: San Antonio TX	It seems like a workable idea to me. I would just use 2 regular pots for the L-R channel inputs (so I also had balance control) and a dual-gang pot for the sub inputs.

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