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Go Back   Head-Fi: Covering Headphones, Earphones and Portable Audio > Misc.-Category Forums > DIY (Do-It-Yourself) Discussions

Meier Audio CORDA HEADSIX & The Most Recent Sponsored Threads

Celebrating 6 years of Head-Fi, Meier Audio introduces the Limited Edition HEADSIX (portable headphone amp) Head-Fi Support Sales Action




 
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Old 03-15-2006, 08:33 PM   #1001 (permalink)
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here is a buffered amp I built, based on CMOY plans... biased to class A and buffered from Tangent's articles
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Old 03-15-2006, 09:04 PM   #1002 (permalink)
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Hehe, nice. Must've took a bit of redesigning.
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Audigy 2 ZS ---> PIMETA (Class-A Biased, AD8620AR, TREAD Regulator, Custom-built Discrete Diamond Buffer boards on L/R from PPAv2) ---> Grado SR-225

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Team College-Fi (USAFA)

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Audigy 4 (roommate's computer) ---> DIY GB-150D-based integrated amp (stereo configuration, remote-controlled, power-on delay for output, and heavily class-A biased (3.9mA/channel) LM4562NAs used in preamp section) ---> Yamaha NS-527 (modified with Vifa 6 1/2" woofers, Panasonic film caps in crossover, and heftier internal wiring)

Ghey-C'97 (my piece-o-crap issued laptop) ---> PPAv2 (class-A biased AD8620 (2.5mA/channel), 8600uF pre-regulator, LM338 high-current regulator, 40mA/channel output bias) ---> Grado SR-225 (yes, I bring my headphones home from the Academy during leave)
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Old 03-16-2006, 03:02 PM   #1003 (permalink)
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Default New M3 is working!

Hello,

Here some pictures of my M3 headphone amp. I have used the normal parts from the BOM on the amb website. The headphone amp sounds great with my HD580 ! I have used an amplification of 5 (4k resistor) which is plenty for any PC and CD source with my HD580 to have a good range for the volume level pot. I have placed the transformer (I bought a normal pcb transformer from mouse instead of the fancy toroidal pcb version from digikey) in an old walwart housing from an old zip drive, because when it was next to the headphone amp pcb I had a little hum.

Before the amp was in a housing it had a little noise and hum, but now in his housing it is dead silent even with open volume (with nothing connected to the amp rca's). If you connect a dac you will hear the noise from the dac a little bit (NOS DAC).






Have fun,

Edwin
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Old 03-16-2006, 04:09 PM   #1004 (permalink)
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Nice M^3

Welcome to Head-Fi sorry about your wallet :evil:
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Old 03-16-2006, 06:01 PM   #1005 (permalink)
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How about some pictures of that nice M^3 all buttoned up? That looks like a nice case...
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Old 03-17-2006, 03:18 AM   #1006 (permalink)
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Wicked...
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Home:
Audigy 2 ZS ---> PIMETA (Class-A Biased, AD8620AR, TREAD Regulator, Custom-built Discrete Diamond Buffer boards on L/R from PPAv2) ---> Grado SR-225

--OR--

Audigy 2 ZS ---> Onkyo A-SV610Pro ---> two crappy Onkyo floorstanders

Team College-Fi (USAFA)

USAFA:
Audigy 4 (roommate's computer) ---> DIY GB-150D-based integrated amp (stereo configuration, remote-controlled, power-on delay for output, and heavily class-A biased (3.9mA/channel) LM4562NAs used in preamp section) ---> Yamaha NS-527 (modified with Vifa 6 1/2" woofers, Panasonic film caps in crossover, and heftier internal wiring)

Ghey-C'97 (my piece-o-crap issued laptop) ---> PPAv2 (class-A biased AD8620 (2.5mA/channel), 8600uF pre-regulator, LM338 high-current regulator, 40mA/channel output bias) ---> Grado SR-225 (yes, I bring my headphones home from the Academy during leave)
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Old 03-17-2006, 04:00 PM   #1007 (permalink)
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Default At last Full White!

I had been brooding on it for sometime now and finally got the stuff I needed, white shrinking tube.

Techflex although only one strand braided, but that is improvement for the next version. For now I am happy.

Two hybrid silver High-OFC copper cores, and braided outer also silvered High OFC copper multi strands.

And of course the finishing touch WBT next gen 0110 Cu.
:k1000:



And now ----> Burn In.

And then ----> Enjoy.

Rgds Hans
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Old 03-17-2006, 10:17 PM   #1008 (permalink)
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Originally Posted by hoosterw
I had been brooding on it for sometime now and finally got the stuff I needed, white shrinking tube.

Techflex although only one strand braided, but that is improvement for the next version. For now I am happy.

Two hybrid silver High-OFC copper cores, and braided outer also silvered High OFC copper multi strands.

And of course the finishing touch WBT next gen 0110 Cu.
:k1000:



And now ----> Burn In.

And then ----> Enjoy.

Rgds Hans
Looks nice, but your posting in the wrong section. That is supposed to go into the "DIY Cable Gallery!!" thread.

-Alex-
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Old 03-19-2006, 07:35 PM   #1009 (permalink)
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Originally Posted by Thaddy
How about some pictures of that nice M^3 all buttoned up? That looks like a nice case...
Here some pictures of the back and the front:





E.
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Old 03-19-2006, 08:33 PM   #1010 (permalink)
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Nice case, what is that?
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