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Old 12-17-2009, 11:34 PM   #1 (permalink)
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Speaker/Amp Wattage

I have recently gotten and amp to put in my Camry. It is a 4 channel and my plan is to connect 2 speakers each to the first 2 channels, and then bridge the other 2 for the sub. However, I was looking at my amp and speakers that I got, the RMS output for the amp is 40W but the RMS handling on the 3.5" speakers I got is 30W, will this cause an issue?
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Old 12-18-2009, 12:22 AM   #2 (permalink)
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You are connecting two speakers per channel? Are these components? How are you wiring this? Is the impedance something that the amp can handle?

Even though the output is higher than the power handling of the speakers, you should be ok as long as you don't blast the volume or you could turn the gain down a bit.
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Old 12-18-2009, 11:13 AM   #3 (permalink)
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you should be fine with the amp and speaker match.
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Old 12-19-2009, 09:42 PM   #4 (permalink)
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Quote:
Originally Posted by touringcamry View Post
You are connecting two speakers per channel? Are these components? How are you wiring this? Is the impedance something that the amp can handle?

Even though the output is higher than the power handling of the speakers, you should be ok as long as you don't blast the volume or you could turn the gain down a bit.
the only thing my amp says is that the impedance needs to be 4 ohms or greater for bridged connections or 2 ohms or greater for stereo connections, am I understanding correctly that it means this kinda connection will not be an issue?
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Old 12-22-2009, 03:12 PM   #5 (permalink)
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Quote:
Originally Posted by sleep_deprived129 View Post
the only thing my amp says is that the impedance needs to be 4 ohms or greater for bridged connections or 2 ohms or greater for stereo connections, am I understanding correctly that it means this kinda connection will not be an issue?
it shouldn't be an issue. most 2 channel amps have tri mode which is being able to power 2 coaxial or 2 component speakers and a sub at the same time.

Whenever you bridge 2 channels the minimum impedance is 4ohms on a 2 channel amp. Most 2 channel amps are stable at 2ohms.

Never wire subs to where they're lower than what the amp supports, otherwise you'll not only damage and ruin the amp, but you might also damage your other electrical components like the alternator or battery or computer chip.
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Old 12-23-2009, 11:10 AM   #6 (permalink)
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Never wire subs to where they're lower than what the amp supports, otherwise you'll not only damage and ruin the amp, but you might also damage your other electrical components like the alternator or battery or computer chip.
yo game guru, not to say your wrong or anything. but that's why we have protective devices like fuses to protect overcurrents produced by your amp. Sometimes you can wire your amp below the manufacturers suggestion. For instance, my old rockford fosgate amps I've always been running them in 2 ohms mono. They reccomend not going below 4 ohms, but my car stereo dealer and other people also said that those rockford amps can handle that kind of loading. So not in all cases. If you size your protection scheme correctly that should prevent damage to your electrical system.
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Old 12-24-2009, 11:51 AM   #7 (permalink)
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well you could probably do that with the old rockfords. But amps these days have regulated power supplies so the good brands are actually underrated and so most people don't recommend wiring at an impedance lower than what is listed on the amp.

I had a lanzar opti1400d and it was rated at 1000 rms watts at 1ohm. It could do rated, but the power supply wasn't regulated so certain days it would do full power while I could tell on other days it sounded like 700 watts. The new amp that I have now which is an MB quart dsc 1500.1 does more...at 14v I know it's putting between 1600-1700 rms.

I had tried wiring subs at an impedance lower than what was rated and it put the amp into protection mode. At one point it actually melted the fuse holder!
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