Amp, Subs, Engine Noise

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pine_pony

Member - Posts: 5

Joined: May 19, 2003

Location: Canada

Posted: January 02, 2004 at 11:40 AM / IP Logged

When i plug the signal cables into my amp the subs go crazy and i get engine noise i have taken the RCA's out and ran them outside the car touching nothing so i don't know what to do any ideas?

bberman1

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Joined: March 11, 2002

Location: United States

Posted: January 02, 2004 at 12:12 PM / IP Logged

Can you list all your equipment and a brief description of how you have things hooked up? Also have you tried a different set of RCA's?

pine_pony

Member - Posts: 5

Joined: May 19, 2003

Location: Canada

Posted: January 02, 2004 at 12:43 PM / IP Logged

i have an alpine CDA-9811 head unit, MTX 4 channel amp, 2 10" rockford fosgate hx2 subs in a ported box. I have rockford fosgate gold plated RCA's and a lighning audio 1 farad capacitor. The subs are 4 ohm dual voice coil so i have them each wired individually to the four channel amp in series making it a 2 ohm load for each bridged channel on the amplifier

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Joined: November 01, 2003

Location: Alberta, Canada

Posted: January 02, 2004 at 2:47 PM / IP Logged

Where is the amp and cd player grounded to, what kind of car is the gear mounted in? Is your amp 2 ohm 2channel mono stable, if not and I expect not, you are asking the amp to do something it is not designed to do. Most amps will operate in 2 ohm mode in stereo, but not in a bridged mono mode, this may be part of the problem.

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Amp, Subs, Engine Noise

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