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<blockquote data-quote="quackhead" data-source="post: 7860551" data-attributes="member: 573547"><p>Since the subs you are using are virtually impossible to find new (and not EVEN trying to find re-cones), maybe the smartest thing would be to run 2 of them on the T1500 at 1 ohm and save the other as a replacement sub for one of the two you have. The Bd amps are good amps, and I would not sell them, if not needed. I am assuming all 3 subs are in separate chambers. You could run one sub on the T500.1 at 2 ohms for 400 watts rms and the other two on the T1500.1 at 1ohm and lower the gain to produce 800 watts at 1 ohm with a DMM, but if you understand how Class D operates, you would not do this.(And it would be the same result as running all 3 subs at 2.5 ohms on the T1500.1) The gain is not a volume control and the amp will operate a lot less efficiently at less than rated output. If these were class A/B Amps, then this option might be viable...but the issues of ohm rise and phase still comes into play when using 2 different amps at 2 different nominal impedance loads in the same system trying to reproduce the same frequencies.</p></blockquote><p></p>

[QUOTE="quackhead, post: 7860551, member: 573547"] Since the subs you are using are virtually impossible to find new (and not EVEN trying to find re-cones), maybe the smartest thing would be to run 2 of them on the T1500 at 1 ohm and save the other as a replacement sub for one of the two you have. The Bd amps are good amps, and I would not sell them, if not needed. I am assuming all 3 subs are in separate chambers. You could run one sub on the T500.1 at 2 ohms for 400 watts rms and the other two on the T1500.1 at 1ohm and lower the gain to produce 800 watts at 1 ohm with a DMM, but if you understand how Class D operates, you would not do this.(And it would be the same result as running all 3 subs at 2.5 ohms on the T1500.1) The gain is not a volume control and the amp will operate a lot less efficiently at less than rated output. If these were class A/B Amps, then this option might be viable...but the issues of ohm rise and phase still comes into play when using 2 different amps at 2 different nominal impedance loads in the same system trying to reproduce the same frequencies. [/QUOTE]

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