Sure Electronics New Tripath Board tc2000+tp2050

[soldersmoker]

Originally Posted by sendler

Then I bought the Meanwell 350W switch mode supply and it is night and day better sounding. I have also auditioned the analog supply with a CLC but found that it sounded better without the inductor. To me, all of the trials of diodes, inductors, and caps are moot now as the smps, like the class D amps as well, sound much quicker and more powerful than their analog counterparts.

Very interesting and convincing argument in favor of a big switching PS. I'm unsure what you're saying about swapping components though. You would dispense with swapping out the input caps, for example? Do you feel doing so is a waste of time with no major sonic gains to be had once the big Meanwell is in place? Curiouser and curiouser.

[pheonix358]

Hi Guys,

Hit the send key and the sites down.

Start again. Here is my build of the Sure 4*100 board in a Carver M400 chassis. I bought two of these off ebay as not working. They certainly were not working but at the price they were cheap enclosures.

This build was for my computer desk and I incorporated a desk light with two 10W LEDs at 500 Lumens each.

Terry

[pheonix358]

More. I am using the Meanwell 27V supply and the combination sounds great. Listening to The Cat at the moment.

Terry

[sendler]

Originally Posted by soldersmoker

Very interesting and convincing argument in favor of a big switching PS. I'm unsure what you're saying about swapping components though. You would dispense with swapping out the input caps, for example? Do you feel doing so is a waste of time with no major sonic gains to be had once the big Meanwell is in place? Curiouser and curiouser.

I was referring to the work I had done with my analog power supplies over the years. As good as I could make it, the switching supply sounds much better. All of the evaluations of the the mods to the Sure 2X100 board were done with the smps providing the power. It still needs the mods.

[Havoc08]

Originally Posted by soldersmoker

Very interesting and convincing argument in favor of a big switching PS. I'm unsure what you're saying about swapping components though. You would dispense with swapping out the input caps, for example? Do you feel doing so is a waste of time with no major sonic gains to be had once the big Meanwell is in place? Curiouser and curiouser.

As mentioned you still have to do the mods, but the PSU section can be cheapened. There is not much need in adding tons of bulk uF on the power input as the SMPS already contains a large amount of caps.

I'm sure however that substituting the SMD caps that power the chip with good quality os-cons or similar ESR would improve things. I changed the std caps on the ta2024 sibling with u-low esr caps and heard great improvement in dynamics and in background noise (for some reason.. maybe the std caps are just too poor quality).

[luka]

Originally Posted by pheonix358

More. I am using the Meanwell 27V supply and the combination sounds great. Listening to The Cat at the moment.

Terry

That is a great setup right there!

[pheonix358]

Originally Posted by luka

That is a great setup right there!

Thanks. I don't know if Sure read this but if they do they should consider putting a fan on the 4*100 as they do for the 2*100 and have a small nice enclosure made that is perhaps a bit different. It is sort of nice being able to have a nice tiny amp that can run from a meanwell supply as well as a car battery, just the thing for a party where there is no power. The form factor is great.

Incidently, I am running the 12V fan on 8V. Can't hear it at all.

Terry

[hoxuanduc]

Originally Posted by rhing

Any possibility of posting photos of your amp? I would like to see how you fit the inductor coils on the Sure board.

Thanks

Sure...

Here they are...







Duc

[rhing]

hoxuanduc,

Thanks for sharing the photos of how you fit in those Jantzen inductors--pretty good work for a first modification job. With those signal wires crossing over the inductors, one would think you'd have some noise issues, but apparently, you're pleased with the mod results.

[pheonix358]

Originally Posted by rhing

hoxuanduc,

Thanks for sharing the photos of how you fit in those Jantzen inductors--pretty good work for a first modification job. With those signal wires crossing over the inductors, one would think you'd have some noise issues, but apparently, you're pleased with the mod results.

It seems to me that D class amps require shielded input wire. A good triple shield in fact.

Terry