Burning Amp BA-3

[DIYspaceW]

I am little puzzling about the psu filtering capacitors! Kendeils are known for their
bright sound. This is not my cup of tea!!! But where in EU find alternatives and which do
you suggest? I look for more fundament but also clear!!! What values are you using?
I guess 100000uF per rail is a good starting point...

Thanks...

 

[6L6]

I would not worry about the 'sound' of the PSU smoothing capacitors. The circuit sounds beautiful. And you can adjust your tone with P3.

Build it, you will love the amp.

 

[DIYspaceW]

I will build it definitely! Maybe two monoblocks...

 

[Zen Mod]

maybe!?!?

is there any other way ?

 

[DIYspaceW]

Good question! The cost for monoblocks is huge!

Has anyone build it this way? Or even whit EI core mains transformers of 800-1000VA?
In two separate cases this huge monsters could have place also bigger capacitors,
I think huge banks of capacitance makes great difference in sound quality at the end...

 

[Zen Mod]

has anyone ?

ya bet ....

 

[DIYspaceW]

Something like this....But where to find so beautiful case....Any hints?

 

[6L6]

Perhaps this? Deluxe 5U "Big Amp Chassis" (All Aluminum) V2 - Full width with 40mm Heatsinks - Chassis

 

[Zen Mod]

daj nemoj me zajebavat

as far as I know , you're having locally to you proper heatsinks (and cases?) factory

Mali elektronika, Marjan Mali s.p.


all you need more is some front material from AlCu trgovsko podjetje d.o.o. , local guy with milling machine and World is your Oyster

 

[DIYspaceW]

Aha... Čemo nešto srediti....
The secound I didnt know but Mali is well known...Thanks anyway!
Do you know someone is my country who can produce high quality EI core transformers 1000VA?
All I tested where not particular good...

6L6: Yes, this is also an option! Will keep in mind!

 

[Zen Mod]

sorry , don't know for Donut source

 

[potepuh]

sorry , don't know for Donut source

a very good donut can be found here Recept - Krofi | Mlinotest


˝DIYspaceW˝ for tafos just contact toroidy.pl they have very good products

 

[DIYspaceW]

I understand potepuh!
But I would like to stick whit square shaped objects like the EI transformers out of curiosity...

In my opinion this one looks more tempting as donuts also......

 

[DIYspaceW]

Is a regulated psu for the front end BA-3 of any advantage? Any experience?

 

[Zen Mod]

overkill is always welcome .......

 

[DIYspaceW]

Isnt TOO much TOO much!

 

[Zen Mod]

naah .......

but sometime it is .......

 

[DIYspaceW]

I am in the procces of ordering the mains transformers and
something is bothering me...
What do you thing is better a big 1600VA transformer or two smaller 800VA.
I am aware the dual mono operation is maybe a better solution for separating the two
channels but the bigger core is faster in response....
So what to dooo? At least I know I will order EI core transformers

 

[AndrewT]

monoblocks are better.

easier heat load.
easier grounding.
easier lifting.
shorter speaker cables.
less crosstalk.

Note that crosstalk comes LAST !

 

[DIYspaceW]

Ok...will seeea..