Anyone ever use a 4 channel amp to power two subs? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

jshaf · 08-25-2014, 02:41 PM

I will be doing a sub install some time early next year and was looking at mono subs, this past spring I bought a 4 channel amp that I had installed briefly only to discover it was causing static on the FM radio stations. trouble shot it for a while but ended up switching to an Alpine PDR f50 4 channel amp put the previous amp on some boards trying to move it but still have it setting around. got to looking at the box and it says you can bridge it to run dual subs. was thinking maybe it would not have the same effect as previously since it will not be hooked directly to the HU and wired differently, just curious if anyone has done a 4 channel in this way and if there are any negatives to doing so? was thinking of maybe doing some kind of foil shield or some kind of filters for the wires if it would help.

******forgot to mention, the amp is a PPI 900.4 , making 450 W per bridge at 4 Ohm.

jeffa · 08-25-2014, 04:53 PM

Dump the amp.

If it is creating static on FM radio stations, it is probably a poorly designed class D amp. This design defect cannot be cured by using a shield or noise filters.

jshaf · 08-25-2014, 05:31 PM

Quote:

Originally Posted by jeffa

Dump the amp.

If it is creating static on FM radio stations, it is probably a poorly designed class D amp. This design defect cannot be cured by using a shield or noise filters.

that is what I thought, thanks for your advice.

Snidely Whiplash · 09-12-2014, 01:18 PM

For video surround sound use, a 1000 watt self-powered 8" sub from Velodyne is all a good size living room needs. Why would you need more than 1 sub in the small confines of a Camaro?

H-E · 10-03-2014, 05:46 PM

It will work fine for a sub amp.Low notes won't reproduce the higher noise you herd.

08-25-2014, 02:41 PM	#1
jshaf Montani Semper Liberi Drives: 2011 Black 2SS/RS w/ IOM stripes Join Date: Feb 2010 Location: Masontown, WV Posts: 4,841	Anyone ever use a 4 channel amp to power two subs? I will be doing a sub install some time early next year and was looking at mono subs, this past spring I bought a 4 channel amp that I had installed briefly only to discover it was causing static on the FM radio stations. trouble shot it for a while but ended up switching to an Alpine PDR f50 4 channel amp put the previous amp on some boards trying to move it but still have it setting around. got to looking at the box and it says you can bridge it to run dual subs. was thinking maybe it would not have the same effect as previously since it will not be hooked directly to the HU and wired differently, just curious if anyone has done a 4 channel in this way and if there are any negatives to doing so? was thinking of maybe doing some kind of foil shield or some kind of filters for the wires if it would help. *****forgot to mention, the amp is a PPI 900.4 , making 450 W per bridge at 4 Ohm. __________________ Stainless Works 1 7/8 Long Tude Headers, Stainless Works High Flow Cats, Stainless Works Retro Chambered Catback, Z/28 Air Intake, RDP Tuned, FR41 Chrome Rims, 1100W stereo, 35% Tint* Last edited by jshaf; 08-25-2014 at 03:37 PM.

09-12-2014, 01:18 PM	#4
Snidely Whiplash Fight Crime, Drive Armed Drives: '14 2SS Yelo Maro, HD collection Join Date: Jun 2013 Location: NRH, TX Posts: 985	For video surround sound use, a 1000 watt self-powered 8" sub from Velodyne is all a good size living room needs. Why would you need more than 1 sub in the small confines of a Camaro? __________________ Bring back Sunoco 260 to the local station. Some folks STILL drive L-88s and need the good gas.

08-25-2014, 04:53 PM	#2
jeffa Drives: 2014 2LT/RS Ashen Gray Metallic Join Date: Nov 2011 Location: Redondo Beach, CA Posts: 585	Dump the amp. If it is creating static on FM radio stations, it is probably a poorly designed class D amp. This design defect cannot be cured by using a shield or noise filters.

10-03-2014, 05:46 PM	#5
H-E Account Suspended Drives: 2010 zr1 Camaro 2011 vert Join Date: Apr 2013 Location: everywhere Posts: 1,121	It will work fine for a sub amp.Low notes won't reproduce the higher noise you herd.