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got subs...need a matching amp...help...

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Old Jan 10, 2006 | 07:18 PM
  #1  
Charged350's Avatar
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From: Queens, NY
Car: 87 IROC Z28
Engine: Custom Forged 355
Transmission: 700R4
Axle/Gears: 9" 4:11's Detroit Locker
got subs...need a matching amp...help...

ok....got a well box for christmas....also got two rockford fosgate punch one subs.....12 inch....as a gift....now i need a good amp to make these two thump real nice....i have no clue about amps....so anyone who can help me out...please do....
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Old Jan 10, 2006 | 11:42 PM
  #2  
Gummie's Avatar
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From: Readington, NJ
Car: 88 GTA
Engine: 350 TPI
Transmission: T-56
Axle/Gears: 9 bolt w/ 3.73
Questions:

1 - price range. How much/little are you looking to spend?
2 - which sub exactly (voice coil configuration, etc)?
3 - how hard do you want to drive your subs? You don’t have to feed a sub 100% of it’s rated power for it to sound good.

The second two questions are not anywhere close to important compared to the first
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Old Jan 11, 2006 | 06:37 PM
  #3  
Charged350's Avatar
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From: Queens, NY
Car: 87 IROC Z28
Engine: Custom Forged 355
Transmission: 700R4
Axle/Gears: 9" 4:11's Detroit Locker
price is really not the issue...but not over 300 bux ill say...i donno....they are punch one series subs from rockford fosgate....have two 12...need one amp to power them...dont need no crazy insane bass...but it has to hit...and hit hard...

thanx if ya cna help
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Old Jan 16, 2006 | 08:14 AM
  #4  
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
whats the Rms on the subs.

Get an amp that is slightly less than the subs RMS.
A two channel amp would be helpfull
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Old Jan 17, 2006 | 05:15 AM
  #5  
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From: Wichita KS
Car: 1987 GTA/1998 Explorer
Engine: 355, trick flow heads, zz409 cam, 3
Transmission: 700r4, shift kit, valve body
Axle/Gears: precision 3.73's, auburn diff
well actually you want a little more than the rms. if you get a pair of woofers that'll handle 1000 watts rms together, and you put an 800 watt amp on them, for one thing you wont be using them to their potential, for another if you try to push them too hard (easy to do) the amp is going to start clipping and sending distorted power to the speakers, quickly blowing them.

i hear you saying "but wont i blow my speakers if i send them 1000 watts and they're only rated for 800?"

probably not, unless they're really fragile. as long as its clean power. my amp puts out around 2800 watts rms @ 1 ohm, but i only use 2200 watts rms. you can find out your wattage by measuring the current and voltage in the wire from your speaker outputs to the woofers, and multiplying them.

reason you want more power on tap, is so you have headroom for peaks in the music. i set my gains with a 50 hz test tone, but when i play music, some is louder than others, especially with mp3's. so, when i go from metallica to lil jon, my amp is still capable of putting out another 600 watts over what it would at a 50 hz test tone, which is plenty, so it doesn't strain too hard, and blow woofers.

BTW my woofers are rated at 500w rms and see 1100 each daily

also, if you want room to upgrade, i'll sell you my old elemental designs nine.1 for 275 shipped. it's rated at 1200x1 @ 1 rms ohm, but thats underrated, and at 12.5 volts, so its closer to 1400 watts. still in new condition, can get some pics if you want.

Last edited by 1meanGTA; Jan 17, 2006 at 05:18 AM.
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Old Jan 18, 2006 | 12:04 AM
  #6  
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From: Readington, NJ
Car: 88 GTA
Engine: 350 TPI
Transmission: T-56
Axle/Gears: 9 bolt w/ 3.73
FYI to all: this thread was created twice. This is the original. The poster didn't feel that we responded quickly enough so he posted another thread. It can be found here.

Trying to make it less complicated, two threads about the same thing with different replies = hard to follow.

Mean: that's generally the case (speakers can typically handle more than raited), but I would be slightly more conservative with his subs as compaired to yours
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Old Jan 18, 2006 | 07:07 PM
  #7  
1meanGTA's Avatar
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From: Wichita KS
Car: 1987 GTA/1998 Explorer
Engine: 355, trick flow heads, zz409 cam, 3
Transmission: 700r4, shift kit, valve body
Axle/Gears: precision 3.73's, auburn diff
yeah i shoulda mentioned that most subs aren't going to take over twice their rated power. i'd look for an amp that is rated (RMS) about 20 percent higher than the combined RMS of your subs.

and be SURE to properly set your gains with a multimeter and clampmeter. if you need any help with this, shoot me a PM.
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Old Feb 4, 2006 | 11:12 AM
  #8  
jjs_world's Avatar
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From: Lincolnton, NC
Car: 89 RS
Engine: 305 TBI
Transmission: Auto
I prefer the Kicker Amps. They actually put out a little more than they are rated at, and have self internal cooling fans. You can pick them up as well as other brands at a very reasonable price at www.locustaudio.com , and all his equipment is new, not referbished
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