help picking an amp
help picking an amp
ok my friend has mb quart speakers in the front and rear. i 4got which model but they say 60-130w. i dunno if thats rms or watever. checked but couldnt find. so if anyone can answer that it would be helpful. now he wants to know wat a decent amp he could get to run these components. he watns to spend around 250. i know thats not alot but thats all he wants to spend.
Here it comes! The Patented Hank-answer-all!
This episode we'll be dealing with my obsession with JBL amps, on sale at ikesound.
They're solid amps, that push excellent power for the money. They don't have a lot of bells and whistles though... I'd reccomend the 80.4
Here endeth the commercial.
Seriously though. JBL amps are inexpensive, do great amounts of power, and can take a beating. They do not however have a lot of features. They're just for making power. Check them out.
This episode we'll be dealing with my obsession with JBL amps, on sale at ikesound.
They're solid amps, that push excellent power for the money. They don't have a lot of bells and whistles though... I'd reccomend the 80.4
Here endeth the commercial.
Seriously though. JBL amps are inexpensive, do great amounts of power, and can take a beating. They do not however have a lot of features. They're just for making power. Check them out.
for 250 bones and looking for a 4-channel amp...i suggest either sony x-plod, kenwood, crossfire (not that famous because they are up and coming), JL. These amps push out clean power. But thinking about this....why get a shietty amp when you have nice speakers? your system is only as strong as your weakest link...if he can dish out the extra doe, move on up to like Xtant, Precision Power, Zapco, Helix.
Originally posted by babyboba29
for 250 bones and looking for a 4-channel amp...i suggest either sony x-plod, kenwood, crossfire (not that famous because they are up and coming), JL. These amps push out clean power. But thinking about this....why get a shietty amp when you have nice speakers? your system is only as strong as your weakest link...if he can dish out the extra doe, move on up to like Xtant, Precision Power, Zapco, Helix.
for 250 bones and looking for a 4-channel amp...i suggest either sony x-plod, kenwood, crossfire (not that famous because they are up and coming), JL. These amps push out clean power. But thinking about this....why get a shietty amp when you have nice speakers? your system is only as strong as your weakest link...if he can dish out the extra doe, move on up to like Xtant, Precision Power, Zapco, Helix.
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I have an older Apline V12 5 channel that is rock solid (for the past 6 years) and is powering my MB Quarts. Sounds great just get good quality as everyone has said power is not a main concern on mids and highs. Subs draw the power.
i just put two Phoenix Gold amps in my car with infinity kappas and PG subs. i didnt want to spend as much as i did, but the first time i cranked up the volume, it was all worth it. The PG amps are of the highest quality i've come across. definately nicer than the Xtant's i had in my eclipse
Originally posted by agsmooth84
The best amps are JL. A JL500/1 is awesome. the 1000/1 is even better.
The best amps are JL. A JL500/1 is awesome. the 1000/1 is even better.
don't get me wrong, they aren't bad amps or subs, in fact they are quite good, i just don't like the value of them.
and anyway, he needs 4 channels for high/mids. i think 4 1000/1 amps is a bit overkill
Last edited by cupOZnj; Jul 29, 2003 at 06:42 PM.
ok thanks for the reply ppl. i guess ill tell him to get the jbl 80.4. i actually have the 300/4 from jl and it works great. well anyways, i have another question. wat is the diff between the ohms? 2, 4, 8 and wat is best to hook the mb quart to. i know nuttin about stereos so bare wit me. and how would i go about hooking it up to those certain ohms. i ahve searched but couldnt find. so if anyone has a thread then please post it here for me thanks.
ohms is the resistance. lower resistance, same voltage = higher power. the formula for power is
P(watts) = V^2(voltage squared)/ R (resistance in ohms)
so a lower resistance will make the denominator smaller, hence making the fraction larger....increased power.
as for "hooking it up"...your speakers have a particular resistance. i'm going to take a guess (i have mb quarts too) and say they are 4ohms, which the most likely are. that means that you should look at what the amp is rated at for 4 ohm loads.
example:
you have a pair of speakers with an impedance (resistance) of 4 ohms. if you power them with an amp that's rated 100 watts x 2 channels at 4 ohms....tada you are putting 100 watts to each speaker. if your speakers are 2 ohms, you'll be putting 200 watts to them. the amp will usually specify, 100w@4ohms, 200w@2ohms...etc. it might be lower, say 180w@2ohms, that's because the amp has a built in protection circuit to keep it from overloading. but in the grand scheme of things 180w of cool clean power is better than 200w of overheated inaccurate power.
also, you have to take into consideration the gain of the amplifier. most likely, those numbers are based on a maximum gain, which unless you have high voltage preouts, you probably won't have your amp set to. there's a whole theory on tuning, but i won't get into that now.
so basically, you don't need to worry about hooking up a certain amount of ohms....unless you are wiring multiple subwoofers or something. as it stands, you should be fine hooking any amp into those speakers.
P(watts) = V^2(voltage squared)/ R (resistance in ohms)
so a lower resistance will make the denominator smaller, hence making the fraction larger....increased power.
as for "hooking it up"...your speakers have a particular resistance. i'm going to take a guess (i have mb quarts too) and say they are 4ohms, which the most likely are. that means that you should look at what the amp is rated at for 4 ohm loads.
example:
you have a pair of speakers with an impedance (resistance) of 4 ohms. if you power them with an amp that's rated 100 watts x 2 channels at 4 ohms....tada you are putting 100 watts to each speaker. if your speakers are 2 ohms, you'll be putting 200 watts to them. the amp will usually specify, 100w@4ohms, 200w@2ohms...etc. it might be lower, say 180w@2ohms, that's because the amp has a built in protection circuit to keep it from overloading. but in the grand scheme of things 180w of cool clean power is better than 200w of overheated inaccurate power.
also, you have to take into consideration the gain of the amplifier. most likely, those numbers are based on a maximum gain, which unless you have high voltage preouts, you probably won't have your amp set to. there's a whole theory on tuning, but i won't get into that now.
so basically, you don't need to worry about hooking up a certain amount of ohms....unless you are wiring multiple subwoofers or something. as it stands, you should be fine hooking any amp into those speakers.


