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Quanghao Audio Design Quanghao Audio Design is a producer of DIY Audiophile Kits and PCB boards, selected from many listening tests!

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Old 10th November 2010, 12:57 PM   #31
quanghao is offline quanghao  Viet Nam
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Default Measure Pre818 and Salas shunt

Measure Pre818 and Salas shunt ( SSHV)
SSHV is very good for Pre 818, and the sound is balance,very detail excellent!
I love SSHV!
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File Type: jpg Salas-with-Pre-818.jpg (113.9 KB, 732 views)
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Old 17th November 2010, 08:28 AM   #32
quanghao is offline quanghao  Viet Nam
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I just finished Pre 818, just watch it
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Old 17th November 2010, 12:25 PM   #33
piero7 is offline piero7  Italy
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Quote:
Originally Posted by quanghao View Post
I just finished Pre 818, just watch it
very nice board quan!
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Old 17th November 2010, 01:31 PM   #34
kevinkr is offline kevinkr  United States
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The best tube pre from Vietnam - 818 Pre
Quote:
Originally Posted by quanghao View Post
I just finished Pre 818, just watch it
Very nice pcb! If those two Solen caps are in the signal path I have found that several other equally inexpensive brands sound much more transparent. I particularly like the Clarity SA which shouldn't cost much more.
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Old 22nd March 2011, 09:44 PM   #35
lsmarques is offline lsmarques  Brazil
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Any updates, quang??
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Old 29th November 2011, 09:18 AM   #36
quanghao is offline quanghao  Viet Nam
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Originally Posted by lsmarques View Post
Any updates, quang??
Yes!

the updat it is good! i sent circuit later
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Old 12th December 2011, 04:18 AM   #37
Luke is offline Luke  New Zealand
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Quanghao, what is the gain of this pre, and is it adjustable?
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Old 12th December 2011, 05:38 AM   #38
quanghao is offline quanghao  Viet Nam
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Quanghao, what is the gain of this pre, and is it adjustable?
Hi!

gain= 21.6dB
Output imperdance: 500 Ohm
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Old 12th December 2011, 06:27 AM   #39
quanghao is offline quanghao  Viet Nam
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Please go to here see my update:

http://www.diyaudio.com/forums/tubes...ml#post2816584

Thanks all!
Quanghao
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Old 16th January 2012, 03:04 AM   #40
deej49 is offline deej49
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Dear Quanghao, I have many times emailed you on various addresses and direct to your web site. I am trying to purchase Pre818 kit but it says there is no delivery either to Australia or USA. Kind regards, John. johnd@geohydrogen.net
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