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Old school Rockford Fosgate looking for some advice
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<blockquote data-quote="scrillacos" data-source="post: 7456559" data-attributes="member: 635939"><p>Hello, new to the forums. I'm running some old school rockford fosgate subs/amps and am looking for some advice on potential changes.</p><p></p><p>Currently, my setup is like this:</p><p></p><p>2 RFD22215 (punch HX2s) in a dual chamber sealed box (about 2.5 ft per chamber) These are dual voice coil subs with 4 ohms on each coil. Each sub is paralell for 2 ohms. Each 2 ohm paralell sub is run to one of the 2 channels of the amp (power 800a2).</p><p></p><p>Rockford says the amp is 2 ohm stable per channel in stereo.</p><p></p><p>Here is where things get interesting. I have a 2nd power 800a2 and was considering running it as well to run those subs harder. However, the power 800a2 is only 4 ohm stable bridged mono. The only way I could see running the 2 15s with the 2 amps is to either:</p><p></p><p>Run each coil of one sub to one channel of each amp</p><p></p><p>or</p><p></p><p>Bridge the amps to one sub each at 2 ohms and risk roasting the amps.</p><p></p><p>The part im struggling with, is the stats in stereo at 4 ohms per channel on the power 800a2 is 200wx2 rms. Its 400wx2 at 2 ohms rms. Am i going to gain anything by running the 2 power 800s in stereo to each sub, 200wx2? Seems like it would be essentially the same thing that I can do with the one amp at 400wx2 at 2ohms per side. Just reaching out to see if it would make any sense to run that other 800a2, or would i just be wasting space?</p><p></p><p>Thanks for any help.</p></blockquote><p></p>
[QUOTE="scrillacos, post: 7456559, member: 635939"] Hello, new to the forums. I'm running some old school rockford fosgate subs/amps and am looking for some advice on potential changes. Currently, my setup is like this: 2 RFD22215 (punch HX2s) in a dual chamber sealed box (about 2.5 ft per chamber) These are dual voice coil subs with 4 ohms on each coil. Each sub is paralell for 2 ohms. Each 2 ohm paralell sub is run to one of the 2 channels of the amp (power 800a2). Rockford says the amp is 2 ohm stable per channel in stereo. Here is where things get interesting. I have a 2nd power 800a2 and was considering running it as well to run those subs harder. However, the power 800a2 is only 4 ohm stable bridged mono. The only way I could see running the 2 15s with the 2 amps is to either: Run each coil of one sub to one channel of each amp or Bridge the amps to one sub each at 2 ohms and risk roasting the amps. The part im struggling with, is the stats in stereo at 4 ohms per channel on the power 800a2 is 200wx2 rms. Its 400wx2 at 2 ohms rms. Am i going to gain anything by running the 2 power 800s in stereo to each sub, 200wx2? Seems like it would be essentially the same thing that I can do with the one amp at 400wx2 at 2ohms per side. Just reaching out to see if it would make any sense to run that other 800a2, or would i just be wasting space? Thanks for any help. [/QUOTE]
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Old school Rockford Fosgate looking for some advice
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