Babelfish XA252 / Babelfish XA252 SIT / Babelfish XA252 SET

But seriously ... we are all still waiting ...

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It has been worth waiting for - I have been the delay not Aleksandar - I have been listening to the BAX252 for a couple of hours now.
Softone 4 phono - Iron Pumpkin - BAX252 - Tannoys
It does not disappoint. All that you expect from a Mighty ZM project plus some. Its a foot tapper and a keeper
 

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It has been worth waiting for - I have been the delay not Aleksandar - I have been listening to the BAX252 for a couple of hours now.
Softone 4 phono - Iron Pumpkin - BAX252 - Tannoys
It does not disappoint. All that you expect from a Mighty ZM project plus some. Its a foot tapper and a keeper
Lucky you! Cool :cheers: And there are plenty of caps... wow.
Could you tell something about the funny inductors?
My IXYS are waiting too... so contacted his Mightiness :Popworm:
 
ERSE Super Q 2.2mH 16 AWG 500W Inductor

NP put me on to these 15-20 years ago - mine are probably 14 AWG

You will enjoy this amp 😇
Thanks Bob :cheers: My version will be no SIT (but if the THF51s are fine... who knows), but I´m sure I will 🙂
And I will be spoiled for choice, have 4 amps in the pipeline, what an autumn (and winter...) this will be 😍
His Mightiness wrote somewhere this amp will have "a shitload of watts", so which VA has your donut?
 
if going Full Monty, meaning 35Vdc rails and 1A8 of Iq, dissipation is 126W per channel

case (sized as) Modushop 5U/500

common Donut 600VA or - better - two of 300VA

regarding power ....... nothing wrong having 60+Watt amp declared as 25W

Papa's cheating all the time; reason why you can't see PMPO Watts declaration on his amps is simple - not enough plate area for so much zeros :rofl:
 
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Thanks Bob :cheers: My version will be no SIT (but if the THF51s are fine... who knows), but I´m sure I will 🙂
And I will be spoiled for choice, have 4 amps in the pipeline, what an autumn (and winter...) this will be 😍
His Mightiness wrote somewhere this amp will have "a shitload of watts", so which VA has your donut?
My version is no SIT also

The transformer is
https://www.antekinc.com/an-10425-1000va-25v-transformer/
It is what I had on hand.

The heat sinks are the ones used in the 5U case - I would not go smaller 😈
 
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Many thanks! 5U500...wow, it's a big fish 😵 :rofl:
For monoblock 4U400?

yes 4U/400 computes , but there is always a problem how to arrange two output parts on two (on different sides) heatsinks - one OS part goes with pcb, second must be moved to adjacent heatsink, using wires and always taking gate resistor to part itself ( heatshrinked with wire)

with some amps that is proven and working, it'll do even here, but I can't guarantee because I didn't tried it, so can't say firmly that there will not be some oscillations

that's exact reason why I asked last year guyz from Modu about monoblock chassis ...... but unfortunately there is no 5U/500deep one

as always, there is no free lunch

but, if you really want (this) 60W+ strong 25W amp, you can skimp only if you're able to draw custom corners by your self
 
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Thank you both for the clarification.

Bob, I like the wood-metal combo for the chassis, it reminds me of my Iron Pumpkin and now I'm planning to build the next 3-4 chassis that way... I mean, 3-4 amps, at least 2 of them as monoblocks, so more chassis :deerman: :Popworm:
 
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Oh my.. I have spent the last few months trying to learn speaker design, and with my sights set now on amplification I feel if possible even more overwhelmed than I did with speakers. I think maybe... I will just copy the designs of the smarter people on this site.

Even with this though, I find myself feeling that I'm reading a foreign language as I scroll through this! I think I would probably like to build Mr. ZM's XA252, but I do not understand what the difference between SIT and SET is? Can anyone kindly point me to a resource I can use to quickly educate myself on these matters? I have no ambitions of designing my own amplifiers, but a basic understanding seems advisable before embarking even on replicating someone else's design. Thank you.