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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 12-28-2007, 11:38 AM   #2811 (permalink)
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naamanf, impressive build... how does it sound?
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Old 12-28-2007, 01:33 PM   #2812 (permalink)
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Thanks. It sounds pretty darn good. Definetly a step up from the 007ta. I wish I had a "good" set of the tubes to try in it though.
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Old 12-28-2007, 01:57 PM   #2813 (permalink)
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Originally Posted by naamanf View Post
Here is my latest build...
Well done!

And completely unrelated but stay safe!
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Old 12-28-2007, 02:24 PM   #2814 (permalink)
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Originally Posted by n_maher View Post
Well done!

And completely unrelated but stay safe!
x2
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Old 12-28-2007, 05:10 PM   #2815 (permalink)
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Oustanding, naamanf!
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Check out the NEW Millett Hybrid MiniMAX, the NEW BantamDAC, and the JFET-Mod MOSFET-MAX
Check out the DIY-famous Millett Hybrid MAX
Over 500 PCBs have been sold for the Millett Hybrid MAX.
175 Users from over 20 different countries!
Thanks, Jude - for Head-Fi's contribution!!


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Old 12-29-2007, 09:16 AM   #2816 (permalink)
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Hey guys,

After A LOT of work on my speaker amp project, I have finally finished it (at least for the moment). Since this was my first speaker amp project, I decided not to skimp out on parts and chose the Nichicon Muse lines for all electrolytic caps with all film caps by Solen and Holco / PRP resistors.

To break it down, this is a CKK-III PreAmp with a simplified Epsilon12 muting circuit set to a 3 second delay, 2x LM3886 based GainClones running off snubberized, regulated LM338-based power supplies at +/- 31V. There is also a very nice AlienDAC wired into the source 4x selector with an RCA loop out.

Power supply caps in the GainClone PSU are 3x 3300uF Nichicon Muse FX, all others are Nichicon Muse KZ.

There is also a tiny and simple RFI power mains filter, as described here, only it's single stage and without the choke (top left of photo).

All equipment is tied together to a star-ground before it goes through a ground loop breaker to the case.

Insides:


Input Wiring - input wires are 99.99% silver


AlienDAC - 1000uF BlackGate power supply cap, 1.0uF AuriCap outputs


CKK-III PreAmp with


GainClone (a little messy) - output wires are 18AWG Cardas


GainClne PSU


The casework - Case from www.vt4c.com/shop, Vampire RCA, and a Neutrik switching headphone jack.



Finally sitting on my desk with the speakers and my Millet MAX, hooked up with an Iron Lung Jellyfish power cord and my new 18AWG Cardas in Teflon RCA.


Oh, and yeah, it sounds great driving my newly acquired Wharfedale 9.2 - thanks Bryan - HiGHFLYiN9!
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Last edited by FallenAngel; 02-02-2008 at 12:09 AM.
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Old 12-29-2007, 08:29 PM   #2817 (permalink)
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Originally Posted by naamanf View Post
Here is my latest build...
<photo snipped>
Pretty much a standard Blue Hawaii. It uses a pair of Twisted Pear Joshua Trees for volume control. Built the entire thing on my little desk here in Iraq. Makes me really appreciate a big work bench. I plan on doing some nice curly Koa accent pieces when I get home along with putting a nice high gloss black finish on the case.
Wow! Nice work, especially given the circumstances! Did someone do a group buy for BH boards (I don't recall one, but...)? Very nice job... can't wait to see it when you finish it.
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Old 12-29-2007, 10:04 PM   #2818 (permalink)
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naamanf, FallenAngel:

WOW WOW WOW!!!!!!!!!!!!!!!!!!!!!!

You guys are that sheeeet! Totally amazing builds. I'm always so very impressed with your work. Bravo!
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Old 12-29-2007, 11:01 PM   #2819 (permalink)
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Originally Posted by naamanf View Post
It uses a pair of Twisted Pear Joshua Trees for volume control.
Beautiful work naamanf! How do you like the Joshua Tree? I'm very impressed with it so far myself.
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Old 12-30-2007, 03:52 AM   #2820 (permalink)
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Originally Posted by Pars View Post
Wow! Nice work, especially given the circumstances! Did someone do a group buy for BH boards (I don't recall one, but...)? Very nice job... can't wait to see it when you finish it.
I had my own boards made up. I also can't wait to finish it. I hate having an ugly amp. For some reason they sound better when they are pretty.

Originally Posted by swt61 View Post
Beautiful work naamanf! How do you like the Joshua Tree? I'm very impressed with it so far myself.
Thanks. The JT works pretty good. There are enough steps that you don't get stuck with one being too loud or quite. I plan on removing it though when Twisted Pear comes out with their Uber Controller. Then the volume control will be done digitally at the DAC.
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