Zenquito 5x50W : nearly the building end

[Idefixes]

Originally posted by DarkOne
Very nice work. I've showed these pictures to friends, so everyone wants to order one.

How does it sound?

I don't know how it sound's because i have a few works to finisheit. But what i can say is that mine is fare to be the first of this amp. schema. In generaly, their are qualified as amp with nearly tube sound.
I tell you more in about a month when it's finished.....

Marc

[Richard C]

Very neat, but beware: connecting ALL 0V's to the star point might not be the best solution.

[Idefixes]

Originally posted by Richard C
Very neat, but beware: connecting ALL 0V's to the star point might not be the best solution.

But have one only referencement point for 0V is one of the most commun solution apply to avoid HUMMMM in power amp.....

Marc

[Drafance007]

Great work. Realy beautiful amp. I belive it souds good too.

[Richard C]

Originally posted by Idefixes


But have one only referencement point for 0V is one of the most commun solution apply to avoid HUMMMM in power amp.....

Marc

Very true, but the 0V point does not have zero impedance and the substantial current pulses produced by the PSU will be passing through this point and could cause potential differences between signal grounds.

The small signal grounds should meet at a seperate 'clean' star point and a single connection from here should then be run to the main star point.

[joensd]

Wow, great looking amp.
(Happens to me that I often think this is the nicest done amp I´ve seen but it doesn´t stop...)
Very nice idea with the copper cage especially for a multichannel amp where it´s the space on heatsink that´s rare and where not every channel needs heavy heatsinking.
Will you run them hot?

And yes please report back bout the sound.
The Zenquito was on top of my project-list for a while but decided for an Aleph3.
But I might be in need for another amplifier soon.

Respect!
Jens

[Idefixes]

Originally posted by joensd
Wow, great looking amp.
(Happens to me that I often think this is the nicest done amp I´ve seen but it doesn´t stop...)
Very nice idea with the copper cage especially for a multichannel amp where it´s the space on heatsink that´s rare and where not every channel needs heavy heatsinking.
Will you run them hot?

And yes please report back bout the sound.
The Zenquito was on top of my project-list for a while but decided for an Aleph3.
But I might be in need for another amplifier soon.

Respect!
Jens

Zenquito board as they are in AB classe don't run much hot, and i have only 50W per chanel. Only the 2 front chanels (the nearest of the amp rear will be polarized in A classe (1.25A rest current)up to 25W and will run the hotest . The copper cage allows me to divide the heat trough the four heatsink. With them i have 0.0825C/W potentiel for all amp.

Marc

[Jean]

I like your layout , very clean.

[Workhorse]

AMPMAN SALUTES YOU Mr.MARC ,FOR YOUR HARDWORK OF EXTREME ENGINEERING ON AMPLIFIER

A SIMPLE PURE EXPLICIT EXTREME ENGINEERED ARTIFACT!

[Idefixes]

Originally posted by Jean
I like your layout , very clean.

Thats what i try to do....have a clean layout : one of the ways to avoid any Humm....

Marc