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Old 12th October 2013, 04:30 PM   #1
Stixx is offline Stixx  Germany
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Default FS - C3G OTL Headphone Amplifier

For sale is one of my babies, an amplifier that I never wanted to sell...
But I simply have too many amps around and I can't give them all the playing time they deserve.

This is a SET amp based on the german C3G pentode (wired as triode). Pretty much everything is custom made...
from the chassis (Walnut Burl over cherrywood + 8mm aluminum top plate) to the custom mains transformer and
the custom chokes to the white Delrin volume knob.
Only very good parts were used: Siemens MKV (paper in oil) output capacitors, Sanyo Oscon + Mica in the cathode,
Kiwame load resistors, a Noble pot (detented!!!)and an all-MKP psu with a big 5R4GYB rectifier tube.
Mains voltage is set for 230V only, sorry.

It plays all kinds of music very nicely with amazing resolution and a punchy bass (on high impedance headphones preferably
- I am using Sennheiser's), it is hum free and has many years of service to come.
Built quality is as you see in the pictures... for questions please send a PM ( provide an email adress then)

Asking 550€ plus shipping.
Attached Images
File Type: jpg C3G-otl_1.JPG (131.2 KB, 591 views)
File Type: jpg C3G-otl_3.JPG (133.7 KB, 571 views)
File Type: jpg C3G-otl_6.JPG (106.6 KB, 553 views)
File Type: jpg C3G-otl_7.jpg (133.1 KB, 553 views)

Last edited by Stixx; 6th November 2013 at 03:24 PM.
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Old 15th October 2013, 06:04 AM   #2
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bringing this back to attention.
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Old 20th October 2013, 02:32 PM   #3
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Old 25th October 2013, 09:27 AM   #4
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anybody?
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Old 27th October 2013, 04:26 PM   #5
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Default planar

what is it like on planar magnetic or low impedance headphones
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Old 28th October 2013, 04:25 PM   #6
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You have PM.
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Old 3rd November 2013, 06:04 PM   #7
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Old 3rd November 2013, 06:29 PM   #8
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Stunning looking amp ! As a hairsplitter I would have liked that one cap not to be glued to the chassis but in a bracket screwed to the chassis. Apart from that I think it is german quality all around. Congrats, I would never sell it if I were you as I guess you will regret this later on.
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Last edited by jean-paul; 3rd November 2013 at 06:35 PM.
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Old 4th November 2013, 06:47 AM   #9
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Thank you Jean-Paul!
Hope I will not regret it one day... but it also hurts me when it is just sitting on the shelf collecting dust (with four other headphone amps to choose from )
The one cap might not be earthquake resistant but is staying in place for quite some time now, also secured by the solid wire... but I take your point!
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Old 6th November 2013, 06:18 AM   #10
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How does it go driving the k701s or possibly the HE500s(?)
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