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HumbleI

Copper - Posts: 103

Joined: January 29, 2003

Location: United States

Posted: March 22, 2004 at 10:49 AM / IP Logged

Upgrading your alternator is a good idea... I have a honda accord, with a 1500w amp.... It would shut off from time to time one day... I traced it to the ground connection, check and make sure that the connection is to bare metal, connected to the frame or as close to it as possible of your car.. make sure you scrape off anything that could worsen the connection, paint, dirt, grease etc... Hope this helps... Peace

AudioBAHNvlcm

Copper - Posts: 209

Joined: February 19, 2003

Location: United States

Posted: March 22, 2004 at 11:58 AM / IP Logged

I have a 1976 Chevrolet Silverado 1/2 ton Pickup with a 350 small block. and yes i have A/C but it is currently not working at the moment,

AudioBAHNvlcm

Copper - Posts: 209

Joined: February 19, 2003

Location: United States

Posted: March 22, 2004 at 12:12 PM / IP Logged

ok now about the wiring situation...first i had an audiobahn a2200hct amp hooked up to the Mojo 15"s. i had it professionally installed so anything behind the woofer, i havent seen how it is wired. all i did was unhook the wires from the audiobahn amp, and hooked up the mojo amp. could this be my problem? does the audiobahn amp have a lower impedence stability? on the audiobahn, the 2 channels were bridged to one.

4 Ohm Stereo: 200 X 2 Watts

2 Ohm Stereo: 400 X 2 Watts

1 Ohm Stereo: 600 X 2 Watts

4 Ohm Mono: 400 X 1 Watts

2 Ohm Mono: 800 X 1 Watts

1 Ohm Mono: 1600 X 1 Watts

iwmaudio

Member - Posts: 4

Joined: March 21, 2004

Location: United States

Posted: March 22, 2004 at 12:53 PM / IP Logged

I just looked up the vehicle and it takes a standard 10SI case...We can do a 10SI case in a 160 amp 1-wire alternator in both standard case and in chrome...Just send me an email at nickm@iwmaudio.com if interested in one of those 2 options...We can also discuss the price of those as well...

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: March 22, 2004 at 1:24 PM / IP Logged

The Memphis amp you are using requires no less than a 2-ohm load. Using 2 of the DVC 2-ohm speakers, they can either be wired at 0.5 ohms (won't work, might have worked on your Audiobahn amp) at 2-ohms (what I suggested earlier) or at 8-ohms (would work fine and not drive the amp very hard, but you would not be happy with the loss of SPL.)

You will have to check your subs to see how they are wired. Taking straight resistance readings with a meter will not always tell you how they are wired.

It may still be that you are simply overloading your alternator, and I highly recomend you upgrade it as well. But if your speakers are overdriving the amp, no alternator will help you,.

AudioBAHNvlcm

Copper - Posts: 209

Joined: February 19, 2003

Location: United States

Posted: March 22, 2004 at 4:44 PM / IP Logged

Well i have a strong feeling that it has to do with my alternator, seeing is that my amp only shuts off when my volts drop to below 10 volts or so.

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: March 22, 2004 at 4:52 PM / IP Logged

Well why didn't you say that before? Yes, if you voltage is dropping to 10 volts the amp will shut off on low voltage. UPGRADE YOUR ALTERNATOR.

stevdart

Platinum - Posts: 5,816

This member consistently provides reliable information

Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: March 22, 2004 at 5:47 PM / IP Logged

If you are not going to fix the air conditioning soon, take off (or cut off) the belt to the A/C. You'll take a load off the alt.

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Need more juice?

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