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Hi!

Welcome to my DIY audio forum. The forum SW has been reset and unfortunately there were some problems with backup files so a few posts were lost, nothing important though.

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Per-Anders Sjöström

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Headphone amplifiers

QRV-02, QRV-03, QRV04, QRV-08 and QRV-09 Headphone amplifiers

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QRV-07

Started by AudioSpirit

Replies: 1
Views: 7,033

September 13, 2005, 07:15:26 AM
by peranders

Replies: 0
Views: 4,727

November 06, 2005, 08:23:19 AM
by peranders

Replies: 0
Views: 4,426

March 20, 2006, 09:45:07 PM
by peranders

QRV-02 support JIN

Started by peranders

Pages1 2

Replies: 21
Views: 14,843

May 04, 2006, 11:42:29 PM
by peranders

Replies: 9
Views: 10,588

June 02, 2006, 10:48:29 AM
by peranders

Replies: 0
Views: 4,358

October 09, 2006, 02:39:00 PM
by peranders

QRV-07 DC problem

Started by alerma

Replies: 6
Views: 6,586

January 01, 2007, 10:16:32 AM
by alerma

Replies: 2
Views: 5,442

May 14, 2007, 06:43:22 PM
by Jinkslynx

Replies: 5
Views: 6,746

July 23, 2007, 09:18:29 AM
by peranders

QRV-07 gain

Started by peterklimo

Replies: 3
Views: 5,311

December 08, 2007, 02:23:37 PM
by peranders

Replies: 9
Views: 8,403

March 04, 2008, 12:35:03 PM
by peranders

Replies: 1
Views: 4,858

November 08, 2008, 06:17:25 PM
by peranders

Replies: 0
Views: 4,091

February 23, 2009, 09:10:59 PM
by peranders

Replies: 1
Views: 4,150

July 21, 2009, 03:50:54 PM
by peranders

Replies: 0
Views: 3,838

October 27, 2009, 07:51:43 PM
by joze7205

Replies: 1
Views: 4,249

December 28, 2009, 04:57:57 AM
by peranders

Replies: 9
Views: 6,924

February 16, 2010, 11:56:59 AM
by qusp

Replies: 1
Views: 4,836

March 03, 2010, 03:34:43 PM
by peranders

Replies: 7
Views: 6,054

March 17, 2010, 06:06:32 PM
by peranders

Replies: 3
Views: 4,902

March 25, 2010, 05:52:19 AM
by qusp

Replies: 6
Views: 6,330

June 17, 2010, 08:44:50 PM
by peranders

Replies: 4
Views: 8,912

June 17, 2010, 08:45:15 PM
by peranders

Replies: 14
Views: 13,897

August 08, 2010, 11:05:28 PM
by renlute

QRV01 output stage

Started by goldkenn

Pages1 2

Replies: 19
Views: 12,766

August 30, 2010, 08:14:23 AM
by peranders

Replies: 3
Views: 5,023

November 21, 2010, 11:10:34 AM
by peranders

Power supply for QRV07

Started by renlute

Pages1 2

Replies: 16
Views: 11,934

December 17, 2010, 05:52:55 PM
by peranders

Replies: 7
Views: 6,563

January 20, 2011, 08:54:29 PM
by peranders

Replies: 1
Views: 5,668

March 19, 2011, 04:16:51 PM
by peranders

QRV-08 hum

Started by CapRock

Pages1 2 3 4 5

Replies: 63
Views: 35,771

April 27, 2011, 08:23:05 PM
by peranders

QRV09

Started by csyao

Replies: 4
Views: 6,474

June 08, 2011, 04:31:51 AM
by csyao

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