'Noir' HPA

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Ray P
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#1 'Noir' HPA

Post by Ray P »

I've found myself spending more time at my desk recently so I decided it was time to get a decent headphone amp so I could enjoy good music whilst working. I chose to build the 'Noir' HPA, buying the PCB from the DIY Audio Store, here are the relevant links;

https://www.diyaudio.com/forums/headpho ... -bias.html

https://diyaudiostore.com/collections/h ... -amplifier

This evening I finished my Noir build and have chalked up my first hour of listening to it. First impressions are already very positive; everything seems well balanced, excellent detail and, seemingly 'fast'! So far listening has just been using some cheap headphones and source has been FLAC files played on my tiny portable DAC music player but tomorrow I'll plug in my DSC2 DSD decoder and my BeyerDynamic DT880 'phones.

I didn't follow the standard build. I flipped the board 180deg and included a Noble volume pot and RCA sockets on the back panel and also moved the headphone socket and switch to the rear - that's left me with a nice clean front panel to which I applied a little LED bling.

Image

Image

Image

Pretty shoddy if I say so myself!

So after my failure to complete for so long that's two projects done in the past few weeks, this and my DSD decoder. Working on my 6C33C amp tomorrow!
Sorry, I couldn't resist!
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Mike H
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#2 Re: 'Noir' HPA

Post by Mike H »

Wo-oah ... BLUE ...

:D
 
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Dave the bass
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#3 Re: 'Noir' HPA

Post by Dave the bass »

Ray P wrote: Sat Dec 14, 2019 11:12 pm Pretty shoddy if I say so myself!
Oi! Oi! Oi! Not so fast!

Mornington Crescent! Under the Cleckheaton Rulings of 1927 (subsection 3 para graph 8 (amended 2019)) you can't just go 'self-shoddy-ing' a good project. A 3rd party has to declare the acquired state of shoddy has been attained.

Rules is rules matey :)

PS.

Shoddy!
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Ali Tait
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#4 Re: 'Noir' HPA

Post by Ali Tait »

Indeed. Shoddy. :D
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ed
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#5 Re: 'Noir' HPA

Post by ed »

that's 2 in one week...our man in Boston( I can't use the omib monniker any more) has just done a bigun and now this...I'm getting nervous..shoddy is getting common...

could it be the new tory govt to blame....

tell us more about the sound Ray.
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IslandPink
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#6 Re: 'Noir' HPA

Post by IslandPink »

Mike H wrote: Sun Dec 15, 2019 2:09 am Wo-oah ... BLUE ...
I still think this coming year will see a return to 640nm as the fashionable colour.
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pre65
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#7 Re: 'Noir' HPA

Post by pre65 »

Orange ?

Color Physics
Color Wavelength (nm)
Red 650 - 800
Orange 590 - 640
Yellow 550 - 580
Green 490 - 530
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Mike H
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#8 Re: 'Noir' HPA

Post by Mike H »

Dave the bass wrote: Sun Dec 15, 2019 9:10 am
Ray P wrote: Sat Dec 14, 2019 11:12 pm Pretty shoddy if I say so myself!
Oi! Oi! Oi! Not so fast!

Mornington Crescent! Under the Cleckheaton Rulings of 1927 (subsection 3 para graph 8 (amended 2019)) you can't just go 'self-shoddy-ing' a good project. A 3rd party has to declare the acquired state of shoddy has been attained.

Rules is rules matey :)

PS.

Shoddy!
Image
 
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#9 Re: 'Noir' HPA

Post by IslandPink »

pre65 wrote: Sun Dec 15, 2019 5:19 pm Orange ?

Color Physics
Color Wavelength (nm)
Red 650 - 800
Orange 590 - 640
Yellow 550 - 580
Green 490 - 530
No, definitely red. Red goes at least down to 620nm.The above looks wrong on many counts. 800nm is invisible. Sodium D-line ( low-pressure sodium ) is 589 & definitely orange. 490nm is definitely in the blue. green doesn't end at 530nm, the standard 'green' line is considered to be 546nm mercury. Hope nobody uses this for an exam, or anything important !
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pre65
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#10 Re: 'Noir' HPA

Post by pre65 »

Blue is nice, green is OK, don't like red.
The only thing necessary for the triumph of evil is for good men to do nothing.

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Ray P
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#11 Re: 'Noir' HPA

Post by Ray P »

IslandPink wrote: Sun Dec 15, 2019 6:16 pm No, definitely red...
Funnily enough I was planning to use red LEDs but I seem to have misplaced them! I may still get some and swap them in for the blue ones as I think they're a bit more subtle.
Sorry, I couldn't resist!
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#12 Re: 'Noir' HPA

Post by Mike H »

Mood lighting! :D


Or multicolour ones that change colour, Ali brought a little Chinese SE EL84 amp to Owston that did that, the ring around the knob changed colour. :D
 
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#13 Re: 'Noir' HPA

Post by IslandPink »

Too much information !
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pre65
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#14 Re: 'Noir' HPA

Post by pre65 »

Mike H wrote: Sun Dec 15, 2019 7:35 pm
the ring around the knob changed colour. :D
Well really !! :shock:
The only thing necessary for the triumph of evil is for good men to do nothing.

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Ray P
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#15 Re: 'Noir' HPA

Post by Ray P »

ed wrote: Sun Dec 15, 2019 2:13 pm tell us more about the sound Ray.
Really very good - very easy to listen too. It gives a nice rich, weighty presentation against a nice black background, excellent separation of the musical strands and lots of detail - as I say, very easy to enjoy. :thumbup:

No technicolor knob though :shock:
Sorry, I couldn't resist!
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