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dlasanders

Member - Posts: 3

Joined: July 25, 2004

Location: United States

Posted: July 25, 2004 at 4:51 PM / IP Logged

I am new to car audio and I have a Sony head unit with a pair of sony 6" 3 way speakers and a pair of 4x6 Sony 2 way speakers which are run off of the head unit amplifier. I don't want to kill any one, I just want a little better bottom so I bought one Sony 10" subwoofer with a max power of 600 watts. My head unit has subwoofer pre amp outs, the only thing I don't know about is what type of amp I need. I would like to stay with Sony but I need to know what type of amp I need, 2 channel? Mono? what??? max power?? I plan to keep the door speakers on the head unit amp and only run the sub woofer off of the amp. Any help will be greatly appreciated.

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DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: July 25, 2004 at 5:06 PM / IP Logged

Ignore "max" power rating. Look for the RMS power rating. Get a mono amp wiht the same RMS power rating as your sub. Be sure to activate the low pass filter.

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dlasanders

Member - Posts: 3

Joined: July 25, 2004

Location: United States

Posted: July 25, 2004 at 5:09 PM / IP Logged

Great, thank you very much

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dlasanders

Member - Posts: 3

Joined: July 25, 2004

Location: United States

Posted: July 26, 2004 at 6:21 AM / IP Logged

I now know I need to match the RMS power but I'm not sure about one thing. My subwoofer has a RMS power of 150 watt and 4 ohm impedance. Do I need to match the 4 ohms also? I see amps advretised as 250 watts RMS at 2 ohms 150 watts RMS at 4 ohms on the same amp. Is this what I need or should my RMS not exceed 150 watts no matter what??? please help!! I am so confused.

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defective

Silver - Posts: 642

Joined: August 20, 2003

Location: Canada

Posted: July 26, 2004 at 6:41 AM / IP Logged

that amp would be perfect, you need an amp that will do 150RMS at 4 ohms, you could also bridge down to 2 ohm, but matching the impedence will always give you more quality, if the amp has more options, it irrelevent

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shaman

Copper - Posts: 70

Joined: May 01, 2004

Location: United States

Posted: July 26, 2004 at 3:05 PM / IP Logged

You need a two channel amp that will make 150 Watts RMS briged on 4 ohms, or a mono amp the makes 150 watts at 4 Ohms. If you got an amp that made 150 watts RMS at 2 Ohms, and hooked it up to your speaker it would only produce around 75 Watts, so make sure the amp you want to buy will make 150 Watts RMS on a 4 Ohm load.

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Amplifier Help

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