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Subwoofers
running DVC sub on two channels of power amp?
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<blockquote data-quote="ChrisR" data-source="post: 7748986" data-attributes="member: 554633"><p>ok, so I did it this weekend, rewired the two 4 ohm DVC subs to run off each of the four channels of my 4 channel Alpine PDX-F4 amp. That about 100W per coil, 200W per sub into 4 ohms, using the right outputs for one sub, the left outputs for the other. Significant improvement over running the amp bridged into the subs with coils in series at 8 ohms. Very low, almost sub-sonic frequencies now apparent. They hit harder -- not a massive difference in that respect but definite and all good. I need to tune my crossover points to give them a little more in the upper range, around 200 - 250'ish. Door speakers roll off at 100; want to raise that a bit but try doubling up with the subs around 225 (with correct phasing).</p><p></p><p>Overall, it's a keeper. I would almost say, in my novice naiveté, that running a pair of DVC subs, with identical sub/coil input signals, off a 4 channel amp, designed for the impedance of the individual coils and RMS rating, is a Real Good Thing.</p></blockquote><p></p>
[QUOTE="ChrisR, post: 7748986, member: 554633"] ok, so I did it this weekend, rewired the two 4 ohm DVC subs to run off each of the four channels of my 4 channel Alpine PDX-F4 amp. That about 100W per coil, 200W per sub into 4 ohms, using the right outputs for one sub, the left outputs for the other. Significant improvement over running the amp bridged into the subs with coils in series at 8 ohms. Very low, almost sub-sonic frequencies now apparent. They hit harder -- not a massive difference in that respect but definite and all good. I need to tune my crossover points to give them a little more in the upper range, around 200 - 250'ish. Door speakers roll off at 100; want to raise that a bit but try doubling up with the subs around 225 (with correct phasing). Overall, it's a keeper. I would almost say, in my novice naiveté, that running a pair of DVC subs, with identical sub/coil input signals, off a 4 channel amp, designed for the impedance of the individual coils and RMS rating, is a Real Good Thing. [/QUOTE]
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running DVC sub on two channels of power amp?
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