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Wiring, Electrical & Installation
Using a 2-ohm sub with a 4-ohm stable amp
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<blockquote data-quote="leousm" data-source="post: 4474652" data-attributes="member: 591743"><p>First of all, hello everyone //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif</p><p></p><p>I have an MTX TA3404 amp (100x4 RMS @ 4-ohms, 200x2 RMS bridged @ 4-ohms) with which I want to use the front channels to power a pair of components (in stereo) and the rear channels to power a sub (in bridged mode).</p><p></p><p>The sub is a Kicker CompVR 12" with dual 4-ohm voicecoils (wired in parallel for a 2-ohm load). Now, I'd like to run this sub off the bridged rear channels, but the amp specifications allow for only 4-ohms.</p><p></p><p>My question is: Can I still use the 2-ohm sub, but set the amp to a lower gain?</p><p></p><p>The way I see it, I could set the gain using a digital multimeter so that the voltage across the bridged speaker outputs is 20.00 volts and thus produce 200 watts @ 2-ohms, instead of the 28.28 volts at the manufacturer specified 4-ohms to produce 200 watts.</p><p></p><p>Would this be at all feasible? If so, are there any drawbacks to this?</p><p></p><p>Basically, I just want to do as much as possible with the stuff I already have, without buying a new sub or amp. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif</p><p></p><p>Thanks in advance</p></blockquote><p></p>
[QUOTE="leousm, post: 4474652, member: 591743"] First of all, hello everyone [IMG]//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif[/IMG] I have an MTX TA3404 amp (100x4 RMS @ 4-ohms, 200x2 RMS bridged @ 4-ohms) with which I want to use the front channels to power a pair of components (in stereo) and the rear channels to power a sub (in bridged mode). The sub is a Kicker CompVR 12" with dual 4-ohm voicecoils (wired in parallel for a 2-ohm load). Now, I'd like to run this sub off the bridged rear channels, but the amp specifications allow for only 4-ohms. My question is: Can I still use the 2-ohm sub, but set the amp to a lower gain? The way I see it, I could set the gain using a digital multimeter so that the voltage across the bridged speaker outputs is 20.00 volts and thus produce 200 watts @ 2-ohms, instead of the 28.28 volts at the manufacturer specified 4-ohms to produce 200 watts. Would this be at all feasible? If so, are there any drawbacks to this? Basically, I just want to do as much as possible with the stuff I already have, without buying a new sub or amp. [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] Thanks in advance [/QUOTE]
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Using a 2-ohm sub with a 4-ohm stable amp
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