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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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QRV09

Started by csyao

Replies: 4
Views: 6,492

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

Replies: 4
Views: 5,121

May 02, 2016, 11:54:47 AM
by peranders

Replies: 4
Views: 5,481

November 01, 2014, 05:09:57 PM
by Matthias

Replies: 4
Views: 8,929

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

Problem QRV-09

Started by joBe

Replies: 4
Views: 6,153

January 19, 2014, 05:00:23 PM
by peranders

QRV09 Voltage

Started by Forte

Replies: 4
Views: 5,569

November 24, 2014, 05:58:14 PM
by Forte

Replies: 3
Views: 5,040

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

QRV-07 gain

Started by peterklimo

Replies: 3
Views: 5,326

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

Replies: 3
Views: 8,274

September 12, 2019, 07:30:03 AM
by peranders

Replies: 3
Views: 4,920

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

Replies: 2
Views: 5,016

March 21, 2015, 01:07:03 AM
by maust

Replies: 2
Views: 5,458

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

Replies: 2
Views: 5,182

April 02, 2012, 08:25:29 PM
by Houghtkj

Replies: 2
Views: 4,591

October 16, 2015, 11:36:58 AM
by mabu0815

Replies: 2
Views: 4,923

July 24, 2018, 04:12:51 PM
by chinook9

Replies: 1
Views: 4,164

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

Replies: 1
Views: 4,219

February 04, 2016, 07:01:18 PM
by peranders

Replies: 1
Views: 4,872

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

Replies: 1
Views: 4,260

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

Replies: 1
Views: 4,820

July 24, 2011, 10:39:17 PM
by peranders

QRV-07

Started by AudioSpirit

Replies: 1
Views: 7,049

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

Replies: 1
Views: 4,851

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

Replies: 1
Views: 5,681

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

Replies: 0
Views: 4,742

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

Replies: 0
Views: 5,755

August 09, 2016, 04:52:24 PM
by DDragon80

Replies: 0
Views: 4,439

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

Replies: 0
Views: 3,845

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

Replies: 0
Views: 4,370

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

Replies: 0
Views: 4,102

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

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