First time amplifier build. This amp sounds much better than my Adcom 5800. The bass is much punchier and sounds more full. The vocals are in your face and much more detailed if that makes sense to you guys.
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Finished my fourth Pass build last week. Prior three were F5 and this Aleph J is something else. F5 is the more incisive, exciting amp. The Aleph has a tone and purity that makes me reconsider what a solid state amp can do as has been stated by others.
Powered on flawlessly and biased up with zero offset on each channel. 20 or so hours in it keeps getting better. 110000uf a side plus chokes will take a little while to settle. Overall very happy with this project. Now waiting for the VFET amp to drop.
Powered on flawlessly and biased up with zero offset on each channel. 20 or so hours in it keeps getting better. 110000uf a side plus chokes will take a little while to settle. Overall very happy with this project. Now waiting for the VFET amp to drop.
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After 'completing' my F5 build I ended up building a BA2018 preamp. I ended up having custom faceplates CNC'd by ModuShop so I could have low key power LEDs and toggle switches on the front. I designed and 3D printed protective covers over any exposed mains in both boxes. You could still get shocked poking around with a screwdriver, but it's enough to keep fingertips out of harm's way.
Here's how they turned out:
Many more photos here.
I finished these in the fall in Valencia (Spain) and started using them. I quickly came to realize that running the amp for any reasonable amount of time lead to either sweating or needing to run the AC. I don't like wasting energy and realized these belong in a colder region where generated heat would be a beneficial side effect. So I sold them (at cost of materials) last month to a happy buyer in the UK.
They were a great project, but I like the experience of making things more than the final product, so I didn't really mind giving them up. BTW, my next project was a big overhaul of a 40 year old Sansui AU-717. It's a beauty.
Here's how they turned out:
Many more photos here.
I finished these in the fall in Valencia (Spain) and started using them. I quickly came to realize that running the amp for any reasonable amount of time lead to either sweating or needing to run the AC. I don't like wasting energy and realized these belong in a colder region where generated heat would be a beneficial side effect. So I sold them (at cost of materials) last month to a happy buyer in the UK.
They were a great project, but I like the experience of making things more than the final product, so I didn't really mind giving them up. BTW, my next project was a big overhaul of a 40 year old Sansui AU-717. It's a beauty.
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Thanks guys.
The sad part is I also built up MX2 boards with Ishikawa daughter cards to try out in the amp. But I sold the amp before ever fitting/soldering the MOSFETs and testing the new boards. So now I've got 99% complete M2X amp boards lying around and selling them is risky because I never tested them!
The sad part is I also built up MX2 boards with Ishikawa daughter cards to try out in the amp. But I sold the amp before ever fitting/soldering the MOSFETs and testing the new boards. So now I've got 99% complete M2X amp boards lying around and selling them is risky because I never tested them!
They've never had power put to them, so the risk is minimal to a prospective buyer, IMO. A few pics of your main boards in the swap meet would likely be enough to generate interest.
The Ishikawa board has so few parts that a stuffing error is highly unlikely. However, if you can give some assurance that you've carefully handled the JFETs prior to installation, it would be a nice thought. Personally, I would be more careful of untested Austin or Norwood boards as alternate examples.
The Ishikawa board has so few parts that a stuffing error is highly unlikely. However, if you can give some assurance that you've carefully handled the JFETs prior to installation, it would be a nice thought. Personally, I would be more careful of untested Austin or Norwood boards as alternate examples.
Finally completed my F5turbo V2 Monoblock. Took me more time then expectedpardon my poor quality photos.
Nice! Where did you source the meters?
I googled the number from the sticker inside the chassis (sn-243148) and it looks like they are from an Onkyo M504 or M508...
An externally hosted image should be here but it was not working when we last tested it.
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