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New member Username: Dietmtdew23Post Number: 1 Registered: Feb-07 | i am looking into getting a 4 ch amp for 4 speakers. they are alpine type s. 2 6.5" and 2 6x9. is this a good idea and any suggestions on how or what to do? |
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Silver Member Username: WarlokOrlando, FL USA Post Number: 214 Registered: Dec-05 | Sound to me like it would work. Though you might, depending on the install, find the type R's are a lil short on midbass. But thats just what Ive heard, guess if it sounds good to you , thas all that matters. . .. you running subs to or just the 4chns? |
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New member Username: Dietmtdew23Post Number: 2 Registered: Feb-07 | no they are type s speakers. yes i have another 2 channel kicker bridged to a 12" sony. but i was planning on using all four channels for the 4 speakers. |
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Gold Member Username: N2audioLawrence, Ks USA Post Number: 1175 Registered: Mar-04 | this little bad boy would be about perfect http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=16413 you'd also want some 4 ga wire and a 2 way fused distribution block to allow for the 2 amps. |
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New member Username: Dietmtdew23Post Number: 3 Registered: Feb-07 | id defintaly consider it, but would you recommend pushing these speakers? they are rated at 50 watts rms apiece, and the amp says that it will put out 40rms x 4spkrs. is it not a good idea to push your speakers or is it??? |
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Gold Member Username: N2audioLawrence, Ks USA Post Number: 1180 Registered: Mar-04 | You mean is that too much power?? No not at all. Given the under-ratedness of Alpine amps it's probably right on the money. Personally, I wouldn't hesitate to run 75-100w to those speakers. Just adjust the gain properly, set the high pass crossovers at a decent freq, and if you hear something strange - turn it down a little bit. If you have a shred of common sense it's pretty hard to blow speakers. |
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New member Username: Dietmtdew23Post Number: 5 Registered: Feb-07 | yeah. i was asking if it was enough power, cause i want to push them to get all i can out of them. and what is the proper way to set gain?? |
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Gold Member Username: N2audioLawrence, Ks USA Post Number: 1181 Registered: Mar-04 | the half a $ $ way is to put in a cd you like. Turn the HU up to about 3/4 volume, or the loudest point you would typically listen then turn the gain up until the subs start to sound bad - and back it off just a few degrees. The right way is to get a digital multi-meter ($10-20 for a cheap one), download a 50hz 0db test tone (easily found) burn it to cd. use V=sqrt(power x resistance) to find your target voltage. Disconnect sub. Play cd on repeat. Turn hu to 3/4 volume or loudest you typically listen. Use dmm to measure voltage at amp terminals, adjust gain to target voltage :D |
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Gold Member Username: N2audioLawrence, Ks USA Post Number: 1182 Registered: Mar-04 | amp terminals = speaker outputs |
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Gold Member Username: N2audioLawrence, Ks USA Post Number: 1183 Registered: Mar-04 | oops - forgot this was for full range speakers process is the same, but you'd want to use a 1khz tone |