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SDF 1st April 2003 08:54 AM

My amp is completed !
2 Attachment(s)
This is my DIY amp. 2*100 w (in 8 ohms load). It's a Zenquito amplifier, the schematic, which can be find


is rellay simple and provides to this amplifier a really good sound.

The sound is really amazing, for only 300$, it's the best amp I never heard.

And now, some pics:

SDF 1st April 2003 08:56 AM

2 Attachment(s)
The rear side.

SDF 1st April 2003 08:59 AM

2 Attachment(s)
one last.

Audiofanatic 1st April 2003 10:04 AM


Great job!
You'r really good!
I'v seen also on the last pic. that you have a Meridian underneath your amp. Does it run hot? If so, you better put the amp on a separate shelf!

Ones again very nice! congrats!

Audiofanatic ;)

trwh 1st April 2003 03:52 PM

Lovey construction, SDF!

Did you make those PCBs yourself? Also, what is the VA rating of that transformer?

See ya,

Matttcattt 1st April 2003 04:12 PM

looks cool :bigeyes:

Da5id4Vz 1st April 2003 04:57 PM

Its quite nice looking. If you could translate a few more details please.

At 100 watts I assume its AB configuration.

Those chokes on the outputs are wonderful, how did you calculate and fabricate them?


What advice would you have for any of us who might want to follow in your footsteps?

A translation by google:

SDF 2nd April 2003 07:43 AM

First thank all :)

Audiofanatic :

Concerning the Meridian CD player under this amp, it's not a problem, it's hot but the heat go up so the cd player stay cold.
More It stand on another shelf.


The power rating is 500VA, it's an encapsulated toroid by Nuvotem-Talema. In the target to grow down the wires,I designed my own PCB


If Ishould give an advice concerning this construction, you should not used a 2*35Vac transformer but 2*30Vac or even 2*25Vac because it's really enough.

This amp is of course a class ab amplifier which biased about 110 mA by device so 232 mA by chanel (second stage required 10 mA and the first 2mA).

The output shoke is approximatively 1 ÁH, 10 rounds of 20 mm radius give it.

seangoesbonk 2nd April 2003 07:56 AM

Looks real good. Everything is nice and tidy. Congrats and happy listening!

SDF 2nd April 2003 08:24 AM

Thank seangoesbonk

For the interesting people, my speaker associate with this amp is here :

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