amp turns on then turns off

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shortys015

Member - Posts: 12

Joined: August 16, 2005

Location: Canada

Posted: July 14, 2006 at 11:41 AM / IP Logged

i am in need of help my amp turns on fine then when i turn the bass up a bit the amp shuts off and goes into protect mode looking for help on what is going on please help

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haemphyst

Platinum - Posts: 5,054

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Joined: January 19, 2003

Location: Michigan, Bouvet Island

Posted: July 14, 2006 at 11:48 AM / IP Logged

Your impedance is too low, or you have a defective amplifier. My guess is the irst one.

What amp, what woofers, what impedance? Some more details, please.

It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

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shortys015

Member - Posts: 12

Joined: August 16, 2005

Location: Canada

Posted: July 14, 2006 at 11:51 AM / IP Logged

i have 2 12'' MTX thunder 7500 series subs 450 RMS

1800w Hifonics mono amp ...not sure what inpedance means

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haemphyst

Platinum - Posts: 5,054

Joined: January 19, 2003

Location: Michigan, Bouvet Island

Posted: July 14, 2006 at 12:23 PM / IP Logged

Are the woofers dual voice coil? Yes

Are they 2 ohm or 4 ohm? Dual 4 ohm

Are they wired in series or parallel? (INPUT HERE)

(If all paralleled, that is a one ohm load. Depending on the MODEL of the amplifier, that may not be a safe load.)

One or two woofers? (INPUT HERE)

Which MODEL HiFonics amp? (INPUT HERE)

Impedance is the correct term for "ohm load", whis is NOT a correct term.

It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

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shortys015

Member - Posts: 12

Joined: August 16, 2005

Location: Canada

Posted: July 14, 2006 at 12:30 PM / IP Logged

Are they wired in series or parallel? it is wired in 4ohms if that helps

(If all paralleled, that is a one ohm load. Depending on the MODEL of the amplifier, that may not be a safe load.)

One or two woofers? two

Which MODEL HiFonics amp? bx1800d

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arcangel9

Copper - Posts: 56

Joined: June 16, 2006

Location: United States

Posted: July 14, 2006 at 2:54 PM / IP Logged

I had this problem too, but it was the ground, when I would turn up the bass, it would move the ground wire.

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shortys015

Member - Posts: 12

Joined: August 16, 2005

Location: Canada

Posted: July 14, 2006 at 4:10 PM / IP Logged

thx arcangel9 thats exactly what it was the ground was bad relocated the ground wire and system is working great now thx everyone for the help

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arcangel9

Copper - Posts: 56

Joined: June 16, 2006

Location: United States

Posted: July 15, 2006 at 1:06 AM / IP Logged

wow I guess thinking of simple things first actually does work

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amp turns on then turns off

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