Need help fixing install

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ottawaLX

Member - Posts: 8

Joined: March 29, 2004

Location: Canada

Posted: April 26, 2004 at 12:51 PM / IP Logged

Ok well I have figured out what was wrong and I fixed it. The amp was bridged but the subs weren't hooked up to be run off of a bridged amp, so I switched to amp to two channel mono and ran the wires accordingly. Which now brings me to my next question how should I wire up the subs within the box so I can run the amp bridged?

stevdart

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Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: April 26, 2004 at 7:57 PM / IP Logged

The problem is the match up between your 2 subs and your amp. The subs are single voice coil 4 ohm (correct me if i'm wrong). They can be paired by wiring in series to each other. That presents an 8 ohm load to the bridged amp.

The alternative wiring for 2 4 ohm subs is parallel. You can't do that because the impedence of 2 ohm bridged is too low for the amp. So, in reality, the subs are going to get one half the power you expect them to get.

Need help fixing install - Page 2 -- posted image.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

ottawaLX

Member - Posts: 8

Joined: March 29, 2004

Location: Canada

Posted: April 27, 2004 at 10:58 AM / IP Logged

So then what you are saying is that for optimal performance I would have to hook the subs up as per the above diagram? And then bridge my amp and run only 1 set of wires to the terminal leaving the other terminal not hooked up to anything right?

aggie altima

Silver - Posts: 298

Joined: July 25, 2002

Location: United States

Posted: April 27, 2004 at 2:41 PM / IP Logged

Isn't 8 ohm mono the same as 4 ohm stereo, which would mean no difference in performance between bridging @ 8 ohm mono and using 2 channels @ 4 ohms stereo?

Jon

Don't like rockford subs? Then don't look at my car =)

Ravendarat

Platinum - Posts: 2,806

Joined: February 23, 2004

Location: Canada

Posted: April 27, 2004 at 3:55 PM / IP Logged

yes, its the same thing

double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

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Need help fixing install

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