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Fetzilla Build Documentation

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ajst2duk

Member
Joined 2010
meanman1964 said:
Very nice build,how does it all sound?
What speakers are you using?
Click to expand...

I'm using Lenehan Ml1+ speakers - built locally. I'm really enjoying the sound.
I have been swapping back & forth between the fetzilla and Ncores. Both have a different sound - Ncore very transparent and very very controlled base - Fetzilla a little warmer - base definitely there but a little rounded compared to Ncore. Fet has nicer midrange and probably is a less fatiguing listen.
 
meanman1964

meanman1964

Member
Joined 2006
Yes ajst2duk ,that's true you keep listening music with the FetZilla.A lot of people buy or build an amp on a moment base.I mean they realy say Oh, this amp is jumping out.Just try a song of Metalica called One then you will notice how good the Fetzilla performs regarding the bass
 
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meanman1964

meanman1964

Member
Joined 2006
Right now I'm testing my second FetZilla with a 300 Watt SMPS.At high volume it stays at a steady +- 35Vdc.
 

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AKSA

AKSA

Member
Joined 2001
aksaonline.com
Andrew,

That's a confident move - thank you for your trust!

I had a part in the FetZilla, but did not really design it. There were things in that design I would have done differently, but then, we set out to create a fully FET amp and there were some constraints.

The NAKSA is a very different amp, with more resolution and more natural sound. Not necessarily best, just DIFFERENT. I think amp, and speakers, are a bit like food - we all do not quite like the same stuff!

I'm hopefully sending a NAKSA 80 to Sydney. I'll let you know if the owner would happy to visit for a listen!

Cheers,

Hugh
 
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PeteMcK

Member
Joined 2002
Well, 2 years since I stuffed the boards, & then got stuck... Having some post surgery recovery time on my hands, thought it's time to kick along a few unfinished projects. My problem is that I'm too tight to buy a dual secondary transformer, having a shed full of otherwise suitable units. Has anyone built the amp using a 'conventional' CT transformer? I'm thinking a better way to go may be to use two transformers, with Full wave rectification on each - I can build the power supply off the PCB up to C15 & C17?
Any motivational thoughts appreciated...Cheers
 
AKSA

AKSA

Member
Joined 2001
aksaonline.com
Hi Peter,

You can buy a couple of the Altronics 160VA toroids, 2 x 25Vac secondaries. They are about $48 each as I recall. Alternately you could look around for EIs at the trash and treasure meets, but you have to have two separate secondaries since a CT version will not work.

The problem is that you'd have to rebuild the power supply for a CT trafo. I have been using CT power supplies for decades until I tried a non-CT system and then discovered it's much quieter.......

Cheers,

Hugh
 
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