Chassis will probably get rid of the last bit of noise I'm getting if I touch or turn the volume control.
Yep. A chassis will do that.
Otherwise the amp is noise free and sounds pretty awesome (I'm still burning it in + a fresh pair of Sennheiser 6XXs).
Awesome. I'm glad you like it.
Tom
Just finished the build with Tom's help.
All I can say is WOW!
Sounds better than my phonitor and coupled with CanOpener is just amazing.
Really impressed and satisfied.
Great job Tom!
All I can say is WOW!
Sounds better than my phonitor and coupled with CanOpener is just amazing.
Really impressed and satisfied.
Great job Tom!
Congratulations!!!!! Glad the recommendation worked out for you. I sure do love mine.
Tom, I've got to find one of your projects to actually BUILD.
Tom, I've got to find one of your projects to actually BUILD.

Congratulations!!!!! Glad the recommendation worked out for you. I sure do love mine.
Tom, I've got to find one of your projects to actually BUILD.![]()
Hi,
Thanks for the recommendation.

Awesome. I'm glad you got it working and glad you like it. Thanks for sharing.
Tom
Hey Tom,
Thank you!

Been listening to my favorite tracks and it just makes my phonitor sound muddy.
Its a whole new level of detail. Tracks almost sound different or new. I'm rediscovering new details.
Really impressive.
I've paired it CanOpener to simulate crossfeed. Im also using Equilibrium and the oratory1990 profile for my lcd2s.
Haven't herd anything better than this in cans before. Reminds me of when I had my dynaudio bm15a.
Its a whole new level of detail. Tracks almost sound different or new. I'm rediscovering new details.
Really impressive.
I've paired it CanOpener to simulate crossfeed. Im also using Equilibrium and the oratory1990 profile for my lcd2s.
Haven't herd anything better than this in cans before. Reminds me of when I had my dynaudio bm15a.
I have an HP-2, fully assembled and tested by yours truly, sitting with a friend in the US. It has never been used. I'm willing to sell it for the cost of parts. $550 will get the amp delivered to your doorstep by UPS, assuming a US destination. Shipping elsewhere will be a bit more.
Contact me by email, for example through the Contact Us form, if you're interested in buying this amp.
Tom
Contact me by email, for example through the Contact Us form, if you're interested in buying this amp.
Tom
Attachments
Nice job! Show pics of the inside too!
Best,
Anand.
Hi,
Updated the post with more pics.
Don't have inside pics sorry and it was a pain to get it closed....
Great looking enclosure! Where are you going to put the sticker? 😀
I was thinking of keeping it as is, lovely design.
Nope. I do provide a block diagram on my website: HP-22 – Neurochrome
I realize that not providing schematics ruffles the feathers for some, but I've had issues with copies of my circuits showing up on forums overseas. I don't see any reason to make it easier for the copycats.
I do provide design documentation with the board that explains how the circuit works and how to assemble and use it.
Tom
I realize that not providing schematics ruffles the feathers for some, but I've had issues with copies of my circuits showing up on forums overseas. I don't see any reason to make it easier for the copycats.
I do provide design documentation with the board that explains how the circuit works and how to assemble and use it.
Tom
QQ -- it seems C44 1000uF/35V Panasonic EEU-FS1V102L is currently backordered.
I went ahead and substituted it with 50VDC 1000uF EEU-FR1H102B 16x25mm (also Low ESR). Assuming it fits (the leads are slightly wider @ 7.5mm), this should be no problem, right?
I went ahead and substituted it with 50VDC 1000uF EEU-FR1H102B 16x25mm (also Low ESR). Assuming it fits (the leads are slightly wider @ 7.5mm), this should be no problem, right?
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