MTX MTA 225

mike49504 · 10th July 2011, 05:38 AM

I picked up one of theese amps today from a friend.

Wondering if anyone knows where i can get the plug for it ?

Or a good part number somewhere where i can order an after market plu for it??

The only pic i found was this one and it looks like this plug is missing some wires ..

The plug i need has 5 wires comming out i believe.

1moreamp · 10th July 2011, 06:56 AM

Hi Mike, it resembles a older PPI plug, and if it is then all you need do is pry open the lid of the connector and simple compress some new wires into each connector. They crush into the seats to form a connection.
Other the that there is a client of mine selling this on that auction site.. But you should be able to pull that one open and replace the wires...

I believe that PPI built those amps long ago as I recall repairing a few way back when

mike49504 · 10th July 2011, 04:31 PM

Thanks, But im missing the entire plug all together on this amp.

ppia600 · 10th July 2011, 05:33 PM

Yep, its a ppi with MTX badging. Very unique amps IMO. Same speaker plug as the older ppi amps as 1moreamp said.

Perry Babin · 10th July 2011, 05:41 PM

Has anyone found a substitute for this type of connector that could be soldered to the board without modification?

ppia600 · 10th July 2011, 05:48 PM

On my older ppi amps I just removed them and soldered 14 gauge. I didn't like the fact that you have a resistance point where the wires crimped into the plug and another where the plug contacts the board contacts. I haven't seen a different version that would fit, mainly because of spacing and the low height available. Maybe a normal molex would snap into the opening and you could solder it to wire jumpers soldered to the board. Kind of like the original Coustic amps.

spooney · 10th July 2011, 07:00 PM

There is a guy on Ebay that lives in Michigan that sells a lot of old school Orion wiring harnesses and other random stuff for old amps. His name is jspeedracer76 I believe. I'd try him or possibly robot underground on Ebay would have it.

10th July 2011, 05:33 PM	#4
ppia600 diyAudio Member Join Date: Jun 2007 Location: Louis y ana	Yep, its a ppi with MTX badging. Very unique amps IMO. Same speaker plug as the older ppi amps as 1moreamp said. __________________ Don't worry... you can always turn the gain down!

10th July 2011, 05:41 PM	#5
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Has anyone found a substitute for this type of connector that could be soldered to the board without modification? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

10th July 2011, 05:48 PM	#6
ppia600 diyAudio Member Join Date: Jun 2007 Location: Louis y ana	On my older ppi amps I just removed them and soldered 14 gauge. I didn't like the fact that you have a resistance point where the wires crimped into the plug and another where the plug contacts the board contacts. I haven't seen a different version that would fit, mainly because of spacing and the low height available. Maybe a normal molex would snap into the opening and you could solder it to wire jumpers soldered to the board. Kind of like the original Coustic amps. __________________ Don't worry... you can always turn the gain down!

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10th July 2011, 06:56 AM	#2
1moreamp diyAudio Member Join Date: Dec 2005 Location: Northern California	Hi Mike, it resembles a older PPI plug, and if it is then all you need do is pry open the lid of the connector and simple compress some new wires into each connector. They crush into the seats to form a connection. Other the that there is a client of mine selling this on that auction site.. But you should be able to pull that one open and replace the wires... I believe that PPI built those amps long ago as I recall repairing a few way back when

10th July 2011, 04:31 PM	#3
mike49504 diyAudio Member Join Date: Sep 2006	Thanks, But im missing the entire plug all together on this amp.

10th July 2011, 07:00 PM	#7
spooney diyAudio Member Join Date: Dec 2006	There is a guy on Ebay that lives in Michigan that sells a lot of old school Orion wiring harnesses and other random stuff for old amps. His name is jspeedracer76 I believe. I'd try him or possibly robot underground on Ebay would have it.

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