Phoenix Gold Phorum

Has someone made a spread sheet with each Phoenix Gold amp and what caps are needed to be replaced and the part number/numbers associated for the new replacement caps?

I did a quick search and didnt really find anything, I think I need to wipe my cookies sometimes the search works great other times I get a cannot connect to server message.

I am looking to replaces caps in a M44 M25 and M50.

Thanks guys!

-j

Same cap PN for all those amps. Same applies for ZX and MS series amps.

Eric's write-up is really the bible on cap replacement.

The smaller caps are all the same but the larger rail caps have varying voltage and ratings for different series of amps, it would be helpful to people if there was a sheet with PN's for all the varying rail caps.

gridracer wrote:The smaller caps are all the same but the larger rail caps have varying voltage and ratings for different series of amps, it would be helpful to people if there was a sheet with PN's for all the varying rail caps.

I had tried to get a sticky like that with most common used part numbers also....

Post the part numbers here and I'll make a spread sheet.

any update looking for m50 and m100 caps just don't have the amp yet

the caps I need for my mq430 are on backorder through digikey till march..

I'd like to revive this thread asking for information on cap replacement. If everyone could post or email me what they know I will compile a spreadsheet to put up on the phorum.

Would like to know...
1. oem specs of rail and power supply caps for all pg amps (and quantity)
2. recommended replacement cap specs and part numbers

Also, I know sometimes there are multiple options for various reasons (ie. different manufacturers, space for taller/bigger/better cap, etc) so add a note if required and I will include it in the spreadsheet.

Thanks

I can add this much...

All PG amps in the lines of MS, MPS, ZX, M, and ZPA use the same input capacitors. Stock they are 2,200uF 16V 105C caps. They are all the same physical size. 18mm diameter, 31.5mm height, and 7.5mm lead spacing. I personally replace them with these 5,600uF versions...

http://search.digikey.com/us/en/product ... -ND/589284

One additional note: The PG Reactor amp (limited edition based on the ZX line) has more height room in it. I often use 10,000uF caps in Reactors which I work on.

Also of note: Any PG amp which is Ti (or ZXti as well) series or newer does not have the infamous failing capacitors in it. If you find one of these amps with failing caps, it is almost always due to abuse (amp severely overheated, and often).

I have never see any rail capacitor in any PG amp fail naturally. All rail cap failures have been from abuse (same as above, too much heat for too long). If someone is selling you a PG amp and its rail caps look bad, you know it has been abused. This does not mean the amp is junk though, if the damaged parts are replaced, the amp can work fine.

Abused amps with caps which show damage may need other work on them as well. I replaced the caps in an amp which clearly was over heated several times. When done I hooked the amp up and it worked just fine on my test bench. I put it in a box and set it aside. One year later I hooked it up to test it prior to selling it. About 5 minutes into using it (on 8 ohm home speakers of all things), a channel failed and it blew a fuse. I found one output transistor had shorted out. My best guess is this all was rooted back in the thermal abuse the amp had endured. Enough heat and other components besides capacitors become weakened. These parts can then fail at random.