I agree with zen mod - 24V rails. 1 PCB per channel.
Build as in this guide, but use 18+18VAC 300-400VA transformer.
http://www.diyaudio.com/forums/pass-labs/258301-ba-3-amplifier-illustrated-build-guide.html
Build as in this guide, but use 18+18VAC 300-400VA transformer.
http://www.diyaudio.com/forums/pass-labs/258301-ba-3-amplifier-illustrated-build-guide.html
Why 24V vs 32V rails? Isn't more rail voltage just "better" except for the risk to the Jfets? (Slightly) more power and less distortion, right?
On my F5 I am considering going from a single 18+18 transformer to dual mono 32V rails (. I am not concerned about too much voltage on the Jfets, it's a risk I will take. What's the downside?
On my F5 I am considering going from a single 18+18 transformer to dual mono 32V rails (. I am not concerned about too much voltage on the Jfets, it's a risk I will take. What's the downside?
what do you think of these transformers? I will run them at 115, not 230, so half the VA.
Perhaps one per BA3 monoblock to drive an Altec Horn above 700 Hz? The horn is used in a home system, not in a club.
How much power would this 185VA produce? ( It would become something like a 37VCT, 2.5 amps/polarity ). Anything north of 20 watts would be amazing.
Perhaps one per BA3 monoblock to drive an Altec Horn above 700 Hz? The horn is used in a home system, not in a club.
How much power would this 185VA produce? ( It would become something like a 37VCT, 2.5 amps/polarity ). Anything north of 20 watts would be amazing.
If you use 2, one per channel, you will get at least 20W, probably quite a bit more. Current into lower impedance loads might be an issue, but with that kind of speaker, I doubt it will be any problem at all.
P.S., Did you mean to post a link? Can't see anything.
P.S., Did you mean to post a link? Can't see anything.
These may actually be of some interest to our European friends:
http://shop.plitron.com/specs/480103.pdf
The load I intend to push is 8 ohms. Good! So I can make some sissy amps! 😀
http://shop.plitron.com/specs/480103.pdf
The load I intend to push is 8 ohms. Good! So I can make some sissy amps! 😀
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Hi guys, I got a question here. I was reading the F4 doc & saw that 2 F4 can be driven as parallel mono for 2 ohms load.
Can one config. the BA-3 likewise?
Assuming if it can, will 2 BA-3 (with 3 pairs output per channel) driven as parallel mono have any advantage vs one BA-3 with identical dual-mono power supply & 6 output pairs, in terms of distortion level, current output, etc?
I understand that when driven as mono parallel, both left/right channel must be well matched & balanced for optimal performance. Perhaps this is one advantage that a 6 pair channel has over it?
Can one config. the BA-3 likewise?
Assuming if it can, will 2 BA-3 (with 3 pairs output per channel) driven as parallel mono have any advantage vs one BA-3 with identical dual-mono power supply & 6 output pairs, in terms of distortion level, current output, etc?
I understand that when driven as mono parallel, both left/right channel must be well matched & balanced for optimal performance. Perhaps this is one advantage that a 6 pair channel has over it?
Yes, if you double up the front-end and drive the outputs bridge balanced.
If you want more current into lower ohm speakers, just add more output devices.
