Fuse Meltdown

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fuseblower

Silver - Posts: 403

Joined: June 25, 2003

Location: United States

Posted: February 28, 2005 at 12:39 PM / IP Logged

I am having the trouble with my fuses melting in my amplifier. This takes a week or two of good loud playing before the fuses melt. The amp never shuts down or gets hot to the touch but the fuses eventually melt and than pop. The amp is a digitalis 800 watt T-Class amp. The amp as 3X40amp fuses and my high amp has 2X30 amp fuses. I have a 5 farad cap and a 120 amp circuit breaker under the hood. Could the circuit breaker be limiting the power to the amp and causing the fuses to be getting hot due to lack of current from the battery almost like creating a short circuit? All of the power cables are 4 gauge.

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DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: February 28, 2005 at 12:46 PM / IP Logged

No, nothing can "limit your current flow" and cause fuses to overheat like that, unless you have a high-resistance connection AT the fuse holder.

Sounds like you may have an amplifier problem, or an amplifier cooling problem. Take it in for bench testing and repair if necessary. That amp was made by Ultimate, I believe. I also believe they are now out of business you may be SOL for warranty work...

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customsuburb

Gold - Posts: 1,813

Joined: January 17, 2004

Location: United States

Posted: February 28, 2005 at 3:50 PM / IP Logged

Does your amp have a good ground? Try measuring the resistance from the amp's ground point with a digital multi meter.

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fuseblower

Silver - Posts: 403

Joined: June 25, 2003

Location: United States

Posted: February 28, 2005 at 3:54 PM / IP Logged

Checked the ground and it is good. Grounded directly to the cab of the truck.

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Ravendarat

Platinum - Posts: 2,806

Joined: February 23, 2004

Location: Canada

Posted: February 28, 2005 at 4:16 PM / IP Logged

fuseblower now equals fusemelter? I am going to guess you got an internal problem with that amp but I need you to explain something to me. You gave the ratings of the fuses in both the T class and the amp you are using for highs. Did you just do that to provide information about the current draw concern or are the fuses melting in both amps?

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

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fuseblower

Silver - Posts: 403

Joined: June 25, 2003

Location: United States

Posted: March 01, 2005 at 9:25 AM / IP Logged

Raven, I gave the fuse ratings of both amps just to make sure that I had provided enough information. The amp on the highs is fine, no issues at all. I will be trying to find somewhere to get the amp checked out over the weekend.

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Fuse Meltdown

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