05-04-2009, 07:44 PM
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#1
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GL Member
Join Date: Jan 2009
Location: Fowlerville MI
Posts: 874
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running 2 amps
im not new to installing systems but i have never hooked up two amps. what is the best way to do it as far as the power and ground wire? i can do the remote and RCA but i dont know how to hook two power and ground cables into just one? do i just need a distribution block?
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05-04-2009, 07:52 PM
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#2
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Gone
Join Date: Mar 2004
Location: Lockport Ny
Posts: 19,244
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yep. get 2 distro blocks. one for ground, one for power.
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05-04-2009, 07:56 PM
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#3
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GLS member
Join Date: Apr 2008
Location: Roma, TX
Posts: 1,543
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for power get a fused distribution block. The wire from the battery goes to the block, and 2 power cables go from the block to your 2 amps. As for RCA's, you have 2 choices. 1) You can get a set of rca's from your hu's rca jack to one of your amps input rca jacks, and get another set to put between that amps output to the other one's input. or 2) get 2 long RCA cables, and if your HU has 2 sets of RCA jacks, just use one set for each amp.
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Cleared corners-RF P1 Subs- RF 201S Amp- Memphis Audio 4x6's and 6x9's-JVC Arsenal KD-APD89 Head Unit-front and rear z-spec strut tower brace- KYB GR2 struts- Intrax Springs- Magnaflow Muffler
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05-04-2009, 08:09 PM
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#4
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GL Member
Join Date: Jan 2009
Location: Fowlerville MI
Posts: 874
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okay thanks a bunch guys...as far as the RCA cables i have a splitter for each
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05-05-2009, 06:59 AM
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#5
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Keepin it Real
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 12,522
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i just ran 2 power cables and grounded them separately. call me old fashioned.
__________________
2015 Audi SQ5
2000 Alero GLS Coupe - still in the family, but I don't drive it anymore
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05-05-2009, 08:41 AM
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#6
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Master of my Domain
Join Date: Nov 2006
Location: Toledo, Ohio
Posts: 4,072
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Running separate ground at separate location runs the risk of ground loops.
__________________
-Ryan
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05-05-2009, 08:50 AM
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#7
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Keepin it Real
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 12,522
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Quote:
Originally Posted by Ryan from Ohio
Running separate ground at separate location runs the risk of ground loops.
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you can't just drop some knowledge on me and leave it at that. it has been fine for years, but what damage could occur?
__________________
2015 Audi SQ5
2000 Alero GLS Coupe - still in the family, but I don't drive it anymore
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05-05-2009, 01:47 PM
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#8
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GLS member
Join Date: Apr 2008
Location: Roma, TX
Posts: 1,543
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Some ground loops lead to engine noise from the speakers. It is pretty annoying.
__________________
http://www.cardomain.com/id/nothingbutolds
Cleared corners-RF P1 Subs- RF 201S Amp- Memphis Audio 4x6's and 6x9's-JVC Arsenal KD-APD89 Head Unit-front and rear z-spec strut tower brace- KYB GR2 struts- Intrax Springs- Magnaflow Muffler
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05-05-2009, 03:17 PM
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#9
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Master of my Domain
Join Date: Nov 2006
Location: Toledo, Ohio
Posts: 4,072
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Ground loops translate to noise, static, etc through the amplifiers.
Its mostly common in head units, but has potential to be an issue with amps.
Ground all amplifiers to a common ground point to ensure you wont have this problem.
__________________
-Ryan
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05-05-2009, 03:30 PM
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#10
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Gone
Join Date: Mar 2004
Location: Lockport Ny
Posts: 19,244
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Quote:
Originally Posted by jackal2000
you can't just drop some knowledge on me and leave it at that. it has been fine for years, but what damage could occur?
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oh he can... and he will!
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05-05-2009, 04:21 PM
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#11
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Master of my Domain
Join Date: Nov 2006
Location: Toledo, Ohio
Posts: 4,072
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Quote:
Originally Posted by cherrington17
oh he can... and he will!
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Hey, its one of those rules of thumb. They seem to be getting lost anymore.
__________________
-Ryan
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05-05-2009, 06:21 PM
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#12
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GX Member
Join Date: Feb 2008
Location: Canada
Posts: 108
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you should always have a fuse just off your battery (within 18 inches or closer). If you are in an accident or do something stupid in the future and cut the power wire between the battery and the dist block you end up with a hot wire right off the battery, not good.
best thing is to run a single power wire off the battery, through a fuse as mentioned above and then to a fused distribution block. From the block run a power wire to each amp. gives you flexibility and the most protection. You can use a non-fused distribution block because your amps do have fuses.
For the ground it can be as easy as screwing both amps ground wires under one bolt (seatbelt bolt??) or to be neat and clean run the grounds to a ground distribution block (non-fused) and then from the ground block to the chassie. Make sure you have a good ground to clean nonpainted metal.
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05-05-2009, 06:23 PM
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#13
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GX Member
Join Date: Feb 2008
Location: Canada
Posts: 108
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why are you splitting your RCA's? does your headunit have a front and back RCA's? lots of them have a sub rca as well, or 6 channels. what are your amps running? front/back? front/back/sub?
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05-05-2009, 10:34 PM
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#14
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GL Member
Join Date: Jan 2009
Location: Fowlerville MI
Posts: 874
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im not splitting them sorry...i have a converter cable that you plug the one cable into and it turns the one plug into 2 input plugs
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