[undertow]

See above...

[Folsom]

That looks correct.

It's just hard to tell what's going on from our perspective, so hopefully you've got the wires selected properly.

My original post was just to show how you use a 4 pole, based on what you had posted (not knowing if it was correct at all).

[undertow]

Folsom,

No problem... Pure success! Man this amp is so good it sounds like its floating in mid air now with zero burn in!

See the mundorf 4 poles installed below which upgraded to 47,000 uF, 100 volt. You can see the old Cornells I took out, they were 42,000 uF, 50 volt, 2 pole in the photos.

Honestly did not expect as much as this amp got from this upgrade, its super refined, smooth, and deep liquid tone. Which this amp had all that before, but now its just got that full Class A sound and control to the max again.

[Folsom]

New corns may have given you a similar improvement. Consider that those were old caps yes?

In the future you could make copper plates for the screw terminals. They would need to be cut to reduce the wire as much as possible. That will lower the inductance a lot.

[undertow]

I believe these caps were probably about 8 to 9 years old. The amp still sounded perfect with them, but this added about 10% of just Iron grip on everything. Slightly more transparent, bass is ridiculous clean, and dead on. Yeah only part that could be copper plated would be those 2 green jumper cables, it would be a little difficult because of cutting a plate perfectly for that. I mean the old Jumper was 2 gauge! All I have right now is the 10 gauge high end stuff that I put in there, I think its within 2% of what we can do here either way.

Thanks for your help

[*Scotty*]

undertow, glad to see you got the caps installed. Leave the amp on 24/7 and give it about ten days and it will be better still. If, for some reason you power the amp down, it will take about as long as it was offline to come back on song, weird but that the way it is. This was discovered when schlepping pre-amps and amps around to compare them to other equipment. The gear with 4-poles sounded worse cold right out of the car than it did when it was allowed to sit powered up for about the same amount time as the time in transit.
Scotty

[undertow]

Yeah I already have started that "Leave on Burn in period"... After listening a couple hours it was there anyway, but I am leaving tomorrow for the weekend, and its on now so it will be running straight till Monday as it is.

Thanks

[*Scotty*]

This may sound funny but you might get an improvement using 8ga. stranded THHN copper wire from Lowes or Home Depot to make bigger jumpers for this application. You might get a little better focus in the sound stage and a cleaner sound, or not. It would be a very cheap experiment and if it's going to be better it will be obvious.
Scotty

[undertow]

Yeah maybe... Pretty blown away by it right now. Problem is I put some super nice gold spades terminated perfect fit on the 10 gauge in there. I don't have anymore to replace them right now. Yeah I mean I could get some generic 8 gauge ones from even Best Buy for car audio gear, and just buy some heavy gauge car battery power cables even all together since it's only 50 volt or lower DC, but not sure it's worth the efforts right now.

[undertow]

Since it was a building consensus I should consider heavier gauge conductors on the jumper links between the caps I went ahead and added a second set of the 10 gauge Teflon I originally used. This was a 5 minuet cheap update. Turned the amp back on and a side affect was the very slight tweeter "hiss" you hear on virtually any speaker when you put your ear up to it seemed to dull a little more.

Sound is also maybe a little more relaxed as if the current delivery is slightly stronger overall. I think this solution worked excellent as double 10 gauge was more clean, and easy to work in rather than trying to tie them together with some 4 gauge or something in this case due to the odd spacing, and the additional terminals on the 4 poles I had to work around. Photo with double green jumpers attached.