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#1
02-13-2005, 06:16 PM
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stereo or mono?
I have a 2 channel amp running two 4 ohm subs which is fine and all but there is a switch on the amp which can select between low pass mono, full range mono and full range stereo. Can I run a sub off each channel and have the switch on low pass mono so i can utilise the low pass crossover frequency control? Currently im playing it safe and have the switch set on full range stereo but i dont really want to waste power by trying to get the subs to play frequencies beyond thier range.
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#2
02-13-2005, 06:55 PM
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Re: stereo or mono?
yes you can, normally the amp will take either the left input and put that on both outputs, or it'll sum the 2 inputs and put that on both outputs. Either way you'll get a mono signal going to the subs and you can use the lowpass.
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'01 Black Sentra SE Weapon-R intake, HS header, HKS catback, ES motor mounts, B&M short shifter, Tein coilovers Alpine 9835, Adire Koda 6.1, Adire Brahma 15, Arc 2100cxl, Linear Power 2.2hv, Cadence ZRS-8 '05 Silver WRX STi Injen SES Downpipe, HKS Carbon-Ti catback, Cobb Stage 2 Tune, TiC Super Shifter, TiC Klunk Killer, Tein springs, Nitto NT555R Drag Radials
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#3
02-13-2005, 09:40 PM
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Re: stereo or mono?
Does it matter if the subs are in a parallel wiring configuration (so the amp is seeing 2 ohms)? Some amps (like mine) will only do mono bridged output at 4 or 8 Ohms. 85GSi, you'll have to check your amp's spec's to see if it's possible.
Another wiring question: can you run a wire from each channel on the amp to each channel on the subs (so each sub is getting both left and right output)? I'd think that would only be a problem if you were sending a stereo signal to each channel on the amp.
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#4
02-13-2005, 10:12 PM
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Re: Re: stereo or mono?
Quote:
if so that's a VERY bad idea, you'll actually be wiring the channels in parallel and any difference in their signal will effectively create a short circuit in the amp. Actually, with bridgeable amps, you'd create a short circuit even without a difference in the signal because of the way they're set up. Extremely bad idea, the only amps I'm away of that can do this are the new JBL/Crown amps, and that's only because they specifically designed them to be able to do that.
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'01 Black Sentra SE Weapon-R intake, HS header, HKS catback, ES motor mounts, B&M short shifter, Tein coilovers Alpine 9835, Adire Koda 6.1, Adire Brahma 15, Arc 2100cxl, Linear Power 2.2hv, Cadence ZRS-8 '05 Silver WRX STi Injen SES Downpipe, HKS Carbon-Ti catback, Cobb Stage 2 Tune, TiC Super Shifter, TiC Klunk Killer, Tein springs, Nitto NT555R Drag Radials
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