[adydula]

I just finished this DIY project.

HIGHLY RECOMMENDED.

Posted here and rather re write it here is the link:

https://www.head-fi.org/threads/mark-johnsons-t2-class-a-amplifier.908469/

Alex

 

[adydula]

According to Mark Johnson all his pcbs have been sold....he is trying to get the diystore to sell these. Fingers crossed.

A total of 12 have been sold.

Alex

 

[gaz2613]

Cant wait to build mine. I contacted Mark and luckily he had some more boards, ordered beginning of the week on Tuesday and arrived today. Took just 4 days with standard mail service from the US to the UK. Well impressed.

I wont be using the front and rear panels included though, I have a spare Hammond 1455N enclosure same size as the one used for the Whammy which will house this board nicely.

Just need to order the BOM list from mouser and I'll be all set.

 

[adydula]

Fyi the pcb's and case are going on sale over at the diyaudio store:

https://diyaudiostore.com/collections/headphone-amplifiers/products/noir-headphone-amplifier

They changed the name from T2 to "Nori" "Black".....due to a conflict with another piece of gear.

Absolutely one of the best holographic amps I have ever heard.....

Alex

 

[gaz2613]

Fyi the pcb's and case are going on sale over at the diyaudio store:

https://diyaudiostore.com/collections/headphone-amplifiers/products/noir-headphone-amplifier

They changed the name from T2 to "Nori" "Black".....due to a conflict with another piece of gear.

Absolutely one of the best holographic amps I have ever heard.....

Alex

Just a shame the improvements couldn't be implemented before they released them in the store.

 

[adydula]

Well, life is short, and improvements or fixes to things that some dont like are indeed valid.

Even with these issues I have found this amp works so very well even with its worts....its one of the best holographic sounding amps here regardless of measurements etc...IMO.

I Stand behind this 1000%.

I have 11 head amps here now and this is right up there at the top...so would I not DIY this amp due to the issues well addressed in the dyaudio thread and miss this amp, to me no.

The turn on thump was solved via a 3PDT switch and the turn on transient was solved via a cap change...OR turn on the amp wait at least 10 seconds and no issue.

In my high dollar 2 ch stereo setup, if I turn on the amp before the pre-amp I get a loud pop in the speakers so for some of us we know about turning things on and off in an order....

Some do not like this , and I respect that...but its your choice. So many good choices out there.

That said sonically this Class A 2 watt amp, discrete...is a wonder to me...its that good....so life like...

Alex