Amp for subs?
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From: State College, PA
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From: MO
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From: MO
For these subs it says between 18-300W, continuous 280W, Impedance 5 ohms, usable frequency range 25Hz-2kHz. I really don't know what all this means and want to get an amp and build a box. Manual says space needed for box so i can handle that, i just don't know about the best amp.
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From: State College, PA
I think its better to run subs off a 4 channel that way you get more power to them (sounds better) But yeah, check out crutchfield.com and goto my vehicle and select the subs you already have. =)
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From: American by birth, TEXAN
what diff does it make if you use a 2 channel that has similar power to a 4 channel? id say none, and youd prob pay more for four channels along with the fact that you dont need 4 channels, ie you are not going with your main purpose of powering two subs of one amp...you shouldnt have to bridge
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well, when you bridge a 4 channel amp, and run it into 4OHMs,each channel sees a 2OHM load, so you get more wattage output for your money
this would also be more versatile an amp in the future, if you decided to upgrade to a bigger sub amp, and use this for the mids and highs.
a mono sub amp is optimized for bass and 2 OHM loads usually, so its up to you
prolly ought to check out some specs and prices
good luck
this would also be more versatile an amp in the future, if you decided to upgrade to a bigger sub amp, and use this for the mids and highs.
a mono sub amp is optimized for bass and 2 OHM loads usually, so its up to you
prolly ought to check out some specs and prices
good luck
Last edited by drunkenmonk; Nov 30, 2003 at 05:55 AM.
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From: Lafayette, Indiana
The choice is obvious.
Wire the JBL to 2.5 ohm (since they are 5 ohm subs) and run them to a JBL 600.1 like this. Each sub will see 300wrms or better. The 600 benches at almost 670wrms.
http://cgi.ebay.com/ws/eBayISAPI.dll...category=18797
You need very little of what a 4 channel has to offer. Including the light dim from being A/B and not mono.
Crutchfields ok.....but there are many places online to get great audio at decent prices. Its sad to see crutchfield as a pat answer so often.
You running sealed or ported?
Wire the JBL to 2.5 ohm (since they are 5 ohm subs) and run them to a JBL 600.1 like this. Each sub will see 300wrms or better. The 600 benches at almost 670wrms.
http://cgi.ebay.com/ws/eBayISAPI.dll...category=18797
You need very little of what a 4 channel has to offer. Including the light dim from being A/B and not mono.
Crutchfields ok.....but there are many places online to get great audio at decent prices. Its sad to see crutchfield as a pat answer so often.
You running sealed or ported?
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I agree with Renegadesrun. A 4 ch amp has its place, driving mids, tweets and other fullrange speakers. I was running the JBL Px300.4 in bridged on the rear to sub and 6.5 mids for the front. The bass was clean, but not hard hitting and the amp got hot. Installed a monoblock and the difference is night and day and everything runs nice and cool. Also, if you run a sealed box, you will need more power than a ported box.
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Thanks guys that's the info i was looking for. I built a ported box to the specs at jbl. 2 cubic ft and 4 in diameter port per sub. They say 1 in. of fiberglass for sound deadening on inside walls also. Would insulation or foam work, or do i have to use something similar to dynamat?
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From: Gananoque, Ontario
i agree that if its a sub amp stay away from 2 and 4 channel amps there normaly class A/B that draw alot of current for bass use
a mono amp is likly to be a class D and its more efficent(sp?) i agree that a JBL 600.1 would be the good choice
a mono amp is likly to be a class D and its more efficent(sp?) i agree that a JBL 600.1 would be the good choice