Review and Measurements of Neurochrome HP-1 High-Performance Amp

[amirm]

Just post the HPA-1 review: https://www.audiosciencereview.com/...ansen-audio-hpa-1-headphone-amp-review.10416/

 

[deafenears]

https://www.audiosciencereview.com/...ansen-audio-hpa-1-headphone-amp-review.10416/

That was quick...

 

[tomchr]

No kidding! Thanks Amir!

I now politely suggest that we nudge this thread back to its original topic: The (now discontinued) Neurochrome HP-1. Questions related to the HPA-1 would fit better in the TCA HPA-1 review thread.

Tom

 

[JohnYang1997]

No kidding! Thanks Amir!

I now politely suggest that we nudge this thread back to its original topic: The (now discontinued) Neurochrome HP-1. Questions related to the HPA-1 would fit better in the TCA HPA-1 review thread.

Tom

Yep, Let's go! Do you have something to say about the supply noise of neurochrome hp-1 at this time?

 

[tomchr]

Do you have something to say about the supply noise of neurochrome hp-1 at this time?

No. The HP-1 reached down around 900 nV RMS noise floor (20 Hz - 20 kHz) so whatever noise on the power supply wasn't making into the audio band on the output.

Tom

 

[SAFETYpin]

Just picked up a HP-1 from a seller on Reddit. Supposedly it’s the same unit Amirm measured.

So far it sounds great! I’m going to drag it to work and compare with the 789. Not really a productive reply but I’m excited.

 

[tomchr]

Good to see the HP-1 is still going strong.

Tom

 

[chriskilbourn]

For those of you looking to buy one in black, I just listed mine on eBay for a discount: https://www.ebay.com/itm/174180719411

 

[Ra1zel]

If anyone wishes to ever sell his HP-1 in blue, please let me know, I will be interested.

 

[tomchr]

This is the closest I offer to the Neurochrome HP-1: https://www.tomchr.com/products/hpa-1

The HP-1 does pop up on the used market on occasion though. There weren't many made, so the odds are low but not zero. Best of luck in your hunt for one.

Tom

 

[Ra1zel]

This is the closest I offer to the Neurochrome HP-1: https://www.tomchr.com/products/hpa-1

Thanks, however im specifically looking for HP-1, in a way its a rare collectible now, that should tell a lot about you and your design. You have my highest respect for your work.

 

[St1n]

If the HP-1 outputs 2.6W @ 33 Ohms, I'm curious... does it continue to to increase in output down to even 14 Ohms?

I'm curious if this bad boy can output like 4-5W amp for low impedance planars?

Mine is still going strong as my desktop & gaming amp.

 

[tomchr]

I would expect something like 1.7-1.8 W into 14 Ω from the HP-1.

Good to hear that the amp is still going strong.

Tom