USSA-5 Build with Review

[pinnocchio]

Nice work Vunce! Keep showing us that audio porn! LOL

 

[Nikos]

More progress on my USSA5 build.

 

[zman01]

nikosokey,

Nice work on the chassis - DIY chassis is not easy!

 

[Vunce]

Keep showing us that audio porn! LOL

Haha!
This stage of our builds shows the spirit and uniqueness of DIYA, I also enjoy looking at all the fantastic audio porn from forum members

Nice chassis work Nikosokey! Cutting, drilling and tapping is always a slow tedious task, but necessary! Oh, do I wish for a CNC station

 

[Nikos]

nikosokey,

Nice work on the chassis - DIY chassis is not easy!

Zman !
Thanks for the kind words .
Yes the DIY chassis is not easy work ...

 

[Nikos]

Nice chassis work Nikosokey! Cutting, drilling and tapping is always a slow tedious task, but necessary! Oh, do I wish for a CNC station

Vunce thanks for the kind words .
Yes a lot off hands work.....
Keep us informed about any audio differences if they exist between classic PSU vs SLB when you finish your amplifier ...
Very good your job Vunce as always!

 

[Luke]

Hi Nikeosokey, what is the part number and maker of the umbilical cord connectors? Nice work too, true DIY chassis

 

[Harry3]

Looks like a Neutrik mains, powerCON connector to me.

 

[Nikos]

Hi Nikeosokey, what is the part number and maker of the umbilical cord connectors? Nice work too, true DIY chassis

Looks like a Neutrik mains, powerCON connector to me.

Thanks my friends.
i dont have any idea which part is....
it is from medical device....but i can shoot closer and i post a photo, looks yes Neutrik...

 

[meanie]

Trial fitting into a proper chassis.



Modify this 24Vac,500VA trafo to produce the required 22+22Vac secondary for SLB.



Still awaiting the backplate to come back from machine shop.

 

[pinnocchio]

@nikosokey
Nice work on the chassis! Coming along very nicely!!

@meanie
Is it making music already? Can't wait to hear your feedback with SLB PSU. I've modified a toroidal transformer once, what a pain it was!

 

[meanie]

Hi Pinnocchio,

Yes, it is working fine with the current 18Vac trafo, only slightly low on the +/- supply rail.
I will provide my feedback once I install the correct trafo, after some listening test.

PITA, those lengths of tape going round and round the donut!

 

[Vunce]

Hi Meanie,

Your progress is looking real good!
Soon to be USSA5 triplets born
Are you running without an input capacitor?

 

[meanie]

@Vunce,

Yes, I decided that the coupling caps be in my Yarra preamp, so I bypass the one in the USSA5.

I like your twin SLB setup in your chassis, very neatly done.

 

[ggetzoff]

Trial fitting into a proper chassis.



Modify this 24Vac,500VA trafo to produce the required 22+22Vac secondary for SLB.



Still awaiting the backplate to come back from machine shop.

Meanie,

Good job! Keep going!!

 

[Vunce]

Hello Fellas,
Here’s some more progress pictures.....

 

[pinnocchio]

Looking good Vunce!!! Looking really good!

 

[Vunce]

Thanks for the kind words Do

 

[zman01]

Vunce,

Looking good indeed and hope you get first sound very soon!

 

[meanie]

Vunce,

That's a huge pair of heatsinks!
Where to buy them?