amp problem

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Joined: November 01, 2003

Location: Alberta, Canada

Posted: February 27, 2004 at 10:43 PM / IP Logged

The ohm reading will vary on the sub as you physically push the cone in and out. Make sure the sub is disconnected from the amp to check it. If while you are pushing the sub in and out (gently) you get a reading of infinity or no reading, this is an indication of a flat spot on the voice coils and voice coil former. You will not be able to see it. There are lots of good subs on the market today, the magic is to match the new sub to the amp and the box that you have, so post up the box type and volume.

Top Secret, I can tell you but then my wife will kill me.

makaveliwi

Member - Posts: 19

Joined: February 27, 2004

Location: United States

Posted: February 27, 2004 at 10:49 PM / IP Logged

the box was custom built to fit in a truck, i am looking for a new box and sub(s) i have an 89 lesabre 4 door. i don't want to take up the whole trunk, but i want a lot of bass.

milwaukee walt

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Platinum - Posts: 5,352

Joined: November 01, 2003

Location: Alberta, Canada

Posted: February 27, 2004 at 10:50 PM / IP Logged

What is the model# of the amp?

Top Secret, I can tell you but then my wife will kill me.

makaveliwi

Member - Posts: 19

Joined: February 27, 2004

Location: United States

Posted: February 27, 2004 at 10:56 PM / IP Logged

KAC-7201<>wS('185','5') is the model number of the amp.

milwaukee walt

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Platinum - Posts: 5,352

Joined: November 01, 2003

Location: Alberta, Canada

Posted: February 27, 2004 at 11:03 PM / IP Logged

Well the bad news is that the amp does not make any where near the power that it claims, it is infact rated at 150 w rms x 2 at 4 ohm at 14.4 volts. The good news is that you still can get OK results out of this amp and then put in a monster down the road. Then this amp can be used to power a set of front speakers.

To get loud, choose a pair of good 12" subs that work in a ported enclosure. An average size enclosure for two 12's ported is about 3 cubic feet, not that much loss of space in a trunk. Head out and find some subs that you like that are single 4 ohm voice coil rated up to 300 watts rms or find two dual 4 ohm voice coil subs rated about the same rms. Then we can work on box design.

Top Secret, I can tell you but then my wife will kill me.

makaveliwi

Member - Posts: 19

Joined: February 27, 2004

Location: United States

Posted: March 09, 2004 at 1:30 PM / IP Logged

i fixed the problem with my amp. the amp wasn't getting enough power, there was a voltage drop. i wasn't getting enough contact from the battery tap. i replaced the battery tap and it works fine now.

thanks again,

Walter

milwaukee walt

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amp problem

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