or Connect
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Schematic for SinglePower MPX3?
New Posts  All Forums:Forum Nav:

Schematic for SinglePower MPX3?

post #1 of 6
Thread Starter 

Schematic for SinglePower MPX3?

 

Does anyone have basic schematic for a SinglePower MPX3? My MPX3 had the usual transformer failure last week. I currently have a amp tech who will replace the it with a more robust one.

 

While he has it apart, I asked that he install a “gain reduction” toggle switch to occupy the hole that was previously used for the “high power” switch that is being removed. To make this request easier, he ask if I could come up with a basic schematic for the amp. I said I would give it a try. . . . . So does anyone have, or know where I can get the schematic for this amp?

 

Thanks for any info you can provide.

post #2 of 6

Sorry I can't help but I am extremely interested as well (in case mine ever does break), so if you don't mind I will subscribe.

post #3 of 6

Kevin Gilmore has posted it a few times. 

 

http://www.head-fi.org/t/436281/supra-schematic

 

Same as a supra, with some part value differences in the audio section, and LARGE differences in the power supply section. 

Since every SP is just a little bit speshul, the best you will find is really just a guideline. That should get anyone who should be poking around in there started anyways. 

 

The "gain control" was just a few extra resistors in the volume control. Basically the same thing you would get if you bought those RCA attenuators. 

post #4 of 6

Thanks!

post #5 of 6

http://gilmore.chem.northwestern.edu/singlehoursuprampx.jpg (coming from here )

 

 

edit : oops, I didn't refresh the page and so I didn't see nikongod had already posted it.


Edited by 00940 - 3/7/14 at 9:43am
post #6 of 6
Thread Starter 

Thanks,

 

"Kevin Gilmore has posted it a few times. 

 

http://www.head-fi.org/t/436281/supra-schematic

 

Same as a supra, with some part value differences in the audio section, and LARGE differences in the power supply section. 

Since every SP is just a little bit speshul, the best you will find is really just a guideline. That should get anyone who should be poking around in there started anyways. 

 

The "gain control" was just a few extra resistors in the volume control. Basically the same thing you would get if you bought those RCA attenuators."

 

 

I saw that and was confused by the Supra label. I will forward it on to my amp tech with your note as to it being a basic starting point and not an exact road map.

 

Thanks again!


Edited by augustwest - 3/7/14 at 9:57am
New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Schematic for SinglePower MPX3?