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Old 24th January 2004, 02:14 PM   #1
Mad_K is offline Mad_K  Norway
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Default 10w Xsoz

Hi!

I recently finished a 10W version of Henrik/Nelson's XSOZ.

Many thanks Nelson and Henrik for your wonderful designs!

As the folloving pictures will reveal, I think this must be the (next) smallest SOZ ever buildt. High WAF was a deciding factor for me. The penalty for this is a firebreathing hot amp that runs all of the components on its limits, I doubt that it will last very long in its present condition, but tweaking/tuning will take care of that (I will have to scale it down a little power-wise).

The chassis:

Hybrid between Schroff Euro-Pac components and my own.
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Old 24th January 2004, 02:18 PM   #2
Mad_K is offline Mad_K  Norway
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Here's the back. Nothing fancy, just ordinary good quality industrial stuff.
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Old 24th January 2004, 02:27 PM   #3
Mad_K is offline Mad_K  Norway
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Here's an overview of the internal layout. Pretty tight.

PSU is made with a 600VA trafo, dual bridges and each channel has its own CRC filter made with 22000uF-0R22-22000uF.
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Old 24th January 2004, 02:28 PM   #4
Henrik is offline Henrik  Denmark
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What a piece!!!
I am in a bit of hurrey, i will be back later!
Regards
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Old 24th January 2004, 02:37 PM   #5
Mad_K is offline Mad_K  Norway
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Thank you Henrik!

I will be back later aswell. Tonight my X-amps are will be put through their paces.

Here's a pic of the XBZLS and the XSOZ together.

As to the sound I will simply quote Nelson:

"The Son Of Zen has a wondeful sound, very direct and clear, without the electronic veil imposed by complex feedback circuits."

(And that's before you X it)
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Old 24th January 2004, 02:43 PM   #6
MikeW is offline MikeW  United States
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Nice work, how does it sound?
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Old 24th January 2004, 04:01 PM   #7
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Mad K,

Wouah !!

Beautiful..
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Old 24th January 2004, 08:10 PM   #8
moe29 is offline moe29  United States
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Mads! You're my hero : )

what a beauty! It is amazing the jump in dissipation from
5 watts to 10 watts. At 5 watts my SOZ runs almost cool on the
heatsinks i'm using... but at 10 watts, yikes!

X-SOZ = coolest Pass amp to date
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Old 24th January 2004, 08:17 PM   #9
Magura is offline Magura  Denmark
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Could you please mail me the schematics used for your amp, including values for trafos and so on.

Im working on a collection of schematics of actually made zen series amps to post on a wiki page.

travelling_mac@yahoo.com

Cheers

Magura
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Old 24th January 2004, 08:18 PM   #10
Magura is offline Magura  Denmark
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perhaps even include a short review of the building/- the result.

Cheers

Magura
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