First One - mosFET amplifier module

[Lazy Cat]

Hi Christophe

Only one power supply has to be the chosen one, the best one.

Regarding PM, I can do and I already did the amps all the way DC coupled, DC servo, more than 50 transistors per channel, but First One project was intended to be different, just like it is now. I don't want to make any changes since v1.3 is among the best ones out there. If you consider the size of PCB, parts count and performance only few are there to stand beside. So no general changes on my mind, few details to be polished to mirror finish and that's it.

 

[taccodude]

Did anyone Test SMPS1200/400 with better Caps ?

 

[Lazy Cat]

Did anyone Test SMPS1200/400 with better Caps ?

Maybe it's your turn to enlighten us

 

[taccodude]

Still waiting for mine to get back from Repair. It was pretty good so far,but when I switched back to normal PSU with 4x10.000 BG WKZ Caps(2 per Side) everything sounds more natural,Instruments seem to have more Body.And You hear that right off and don`t have to search for little Details.That`s why I wonder if it`s worth a try.

 

[Lazy Cat]

That`s why I wonder if it`s worth a try.

Of course it would worth a try, I'm sure, as we noticed huge positive difference when recaped SMPS400 with Panasonic elcos. But consider it would take quite some time and money to realize recapping project.

 

[Lazy Cat]

Thought I go look here.

Here is a very nice smps for your needs, give big voltages switchable.

and my board of a loudspeaker measurement jigg, amps is not yet ready.

regards

kees

Welcome kees

Thanks for your attention and thoughtful words. Nice projects on your jigg, I wish you could make them all sing soon.

Regarding SMPS, I see very well designed schematic, universal as variety of voltages are selectable, with good totem pole driver chip, also coupling transformer for four output mosfets gates looks like the best solution. Hopefully someday your SMPS will see the daylight of this world.

Stay in touch.

 

[Lazy Cat]

 

[Lazy Cat]

PSU for preamplifier

 

[Myint67]

Noise problem

I have problem V1.2 &v1.1 both module
Noise come out from tweeter

 

[taccodude]

LC ,spending Time with Audio Stuff is the Fun Part,isn`t it. Can You advise some good Caps ?

 

[Lazy Cat]

I have problem V1.2 &v1.1 both module
Noise come out from tweeter

Hi Mynth

Could be something with shielding of input interconnect cables?

Send me an info about system cabling to PM.

 

[Lazy Cat]

LC ,spending Time with Audio Stuff is the Fun Part,isn`t it. Can You advise some good Caps ?

Take into consideration Panasonic EE for primary and Panasonic FM for secondary side of SMPS.

Yes, a lot of fun with our DIY activities.

 

[Lazy Cat]

Another Black Mamba on the way

Black Mamba ordered, delivery tomorrow.

 

[Lazy Cat]

After few hours Black Mamba alive

Few hours later, intensive work, sweat blood and tears ...

Yes, it can be done fast.

 

[maxlorenz]

Neat!

 

[giannettino]

Wow!!

 

[BYRTT]

Beautiful again - though different

What .... man got home from job wife rearranged furniture around in living room.......better.....

 

[Xerxes75]

What .... man got home from job wife rearranged furniture around in living room.......better.....

Ever thought of the commercial sector/swap meet/FS.....?

 

[pinnocchio]

This is probably for the newer version 1.3 and aiming for commercial sales. Looks cleaner and probably easier for assembling in the end. Also shorter cables for input and speaker out.

Good job!

BTW, will you be selling that new chassis standalone?

Do

 

[Lazy Cat]

Cat's been lazy lately

I don't know about you but some guys simply love v1.3

One more finished on the table