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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 03-26-2007, 10:43 PM   #1 (permalink)
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Speaker ohm impedance on amp

I decided I wanted to run 4x 4-ohm impedance speakers (2x Kicker KS525's and 2x Polk DB525's) in parallel to the 2 channels on my 920watt Kenwood Kac-7202 amp. After drawing it out on paper, I realized that the ohm rating would actually become 2 ohms for each channel. Does this mean I will blow both of my speakers if I connect it in this way, or since the amp can handle a 2-ohm load, does this wiring schematic have no effect on the speakers? Would a series circuit be a better idea? Thanks for any advice

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Old 03-27-2007, 07:42 PM   #2 (permalink)
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It'll just sound like crap. Run your kickers through the kenwood then build your box with a divider to keep the speakers from fighting with each other. Add separate bass ports then line or fill with poly fill for less air buzz and more rounded bass.
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Old 03-27-2007, 11:57 PM   #3 (permalink)
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do you recommend 4 or 2 gauge amp wiring kit for the Rockford amp?
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Old 03-28-2007, 12:01 AM   #4 (permalink)
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Bigger the better I say, although 4 gauge would be plenty, just beef up both + and - sides. There have been too many times I've seen 2 gauge wire going to the amp and something much smaller on both the amp ground and battery ground. No sense beefing up one side and not expect the same for the other.

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