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Feb 28, 2004 | 08:24 PM

Rob

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1000 Watt CAFz'r

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Posts: 1,417

Well, I have installed my entire system this past thursday (new thread will be made later), and I have a slight problem.

I am running a Zapco AG750 ,powering my e8a sub.
My sub is dual 4 ohms, therefore I have it hooked up to 1 channel of my amp. My amp is only capable of 2 ohm stereo.The sub is getting 350 watts.

---SPECS OF AMP:

175W x 2 @ 4ohm stereo
350W x 2 @ 2ohm stereo
750W x 1 @ 4ohm mono

So the problem is that the amp keeps on cutting out at medium-high volumes..then when I lower the volume, it comes back on.
So basically my amp is cutting out....

What could be the problem ?

EDIT: Well now that I think.... I have the sub wired inside for bridged mode, when I should have it wired up for 2 x 350watts @ 2ohms.
I think I have to rewire the sub properly..

[ February 28, 2004, 09:36 PM: Message edited by: Rob ]

Feb 28, 2004 | 08:31 PM

Orion_95

2000 Watt CAFz'r

Joined: Jun 2001

Posts: 3,260

Too low impedance, or a shorted speaker wire. Im not familliar with that amp, but if its not 2 ohm stable, y not run it 8 ohms mono?

Feb 28, 2004 | 08:35 PM

Rob

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1000 Watt CAFz'r

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I have a zapco AG750 . These are the specs:

175W x 2 @ 4ohm stereo
350W x 2 @ 2ohm stereo
750W x 1 @ 4ohm mono

I want to power a e8a4.4 dual 4ohm sub.
In what configuration will I run this sub with my amp ?

Feb 28, 2004 | 08:36 PM

Derek Jerome

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yes run the amp 8 ohms mono ......same as 4 ohm stereo or 1 channel at 2 ohms .........

so 8 ohm mono will be about 350 watts

check out JL audio's tutoral section for a diagram on how to wire it

Feb 28, 2004 | 08:37 PM

Rob

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1000 Watt CAFz'r

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Quote:

Originally posted by dodgeram:
yes run the amp 8 ohms mono ......same as 4 ohm stereo or 1 channel at 2 ohms .........

so 8 ohm mono will be about 350 watts

check out JL audio's tutoral section for a diagram on how to wire it

Have you got a link ?

Feb 28, 2004 | 08:37 PM

JohnnyToronto

1000 Watt CAFz'r

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Why don't you just run each coil at 175 then? Just switch the amp to mono instead of stereo...
Wouldn't that make sense?

Feb 28, 2004 | 08:40 PM

Derek Jerome

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1 DVC driver with Voice Coils in Series
Connecting the two voice coils of the driver in series (+ to -) will result in the following impedances:

Dual-4 Ohm Subwoofer: 8 Ohms

Feb 28, 2004 | 08:42 PM

Derek Jerome

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just so it's clear hook one + wire from one coil to the - wire on the other coil then use the 2 terminals left to hook to the amp

you you can just run 1 coil per channel (4 ohm stereo) and get pretty much the same result [img]smile.gif[/img]