Something tells me the amp feels a bit underwhelmed by those speakers...
😀
They are all really nice, so is yours!
(I know it's not appropriate, but the VFETS being on display all over those places remind me of this record-cover from ledzep, "Presence" ... I just remember that I was quite impressed by it, some nearly 40yrs ago)
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Well it made me think about NP comment, hook them up to "cheap" speakers and be surprised how good they sound.... quite reveiling and impressive, almost to bright at the beginning as well. Not what I would expect from a single ended design...
Aleph 2
Hello, this is soon to become my most powerful class a, the aleph 2, for chassis I have 10 meter heatsink in 2 meter length waiting to be cut up to one or two chassis, if I can get a second transformer like the one in picture, psu will be the easy crc, with plenty uf from nichicon kmh 105 series
Hello, this is soon to become my most powerful class a, the aleph 2, for chassis I have 10 meter heatsink in 2 meter length waiting to be cut up to one or two chassis, if I can get a second transformer like the one in picture, psu will be the easy crc, with plenty uf from nichicon kmh 105 series
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5 meters of heatsink for each amplifier? i'm trying to work out what you mean? I mean its a beast of an amp, no doubt, but unless the heatsinks are only 5cm tall, I cant see how you can use 10 meters?
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That is quite a bit of sinking for an amp. My big 150w Aleph-X amps each burn off about 400w of power. Each amp is built with 6 pieces of sink that are just less than 12" long, for a total of less than 2m per amp. If you are aiming for 5-10m per chassis, you should be thinking of adding wheels to the bottom, since you won't be able to lift them...
yes. its unlikely to be an imperial to metric conversion mistake and he cant be talking about inches, or cm, so colour me intrigued.
Pass DIY Addict
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That's quite a bit of metal work you have ahead of you for this project. Please give very careful thought to how you will achieve airflow and cooling needs. I think you may run into challenges as those sinks look very small (unless your patio paver stones are very large). The fin height appears to be very short and the fin spacing appears very dense. These characteristics will be challenging to overcome when you need to dissipate large amounts of heat.
Attached is the sink that I used for my Aleph-X amps (scale is in inches). They see about a 30-35c temp rise with about 2m per chassis and 400w of idle current.
Attached is the sink that I used for my Aleph-X amps (scale is in inches). They see about a 30-35c temp rise with about 2m per chassis and 400w of idle current.
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Guess it all comes to surface area, I'm confident it will work, it's not cheap China profiles
Here is my dual-mono F5 during initial tests. It's been playing in my system for about a month now. It is the best sounding amplifier I have owned or built.
An externally hosted image should be here but it was not working when we last tested it.
Very interesting to read, parallel output devices operating at 1/3 to 1/10, complimentary pair on input.
To think I was building my first transistor power amp, a Hafler DH-200 which replaced my EL84 P-P integrated amp I built in high school electronics class. Thank you Mr. Ballard, I still use what you taught me.
