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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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Replies: 5
Views: 6,977

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

Replies: 3
Views: 5,102

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

Replies: 1
Views: 5,837

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

Replies: 0
Views: 3,968

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

Replies: 2
Views: 5,472

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

Replies: 1
Views: 5,003

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

Replies: 7
Views: 7,932

June 12, 2015, 08:02:27 PM
by peranders

Replies: 7
Views: 7,986

May 04, 2012, 08:43:10 PM
by peranders

Power supply for QRV07

Started by renlute

Pages1 2

Replies: 16
Views: 12,470

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

Problem QRV-09

Started by joBe

Replies: 4
Views: 6,426

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

Replies: 7
Views: 6,340

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

QRV-02 support JIN

Started by peranders

Pages1 2

Replies: 21
Views: 15,381

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

Replies: 0
Views: 6,016

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

Replies: 9
Views: 7,097

May 05, 2018, 01:27:58 PM
by peranders

Replies: 0
Views: 4,506

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

Replies: 8
Views: 8,231

May 09, 2016, 02:29:55 PM
by savinalexandru

QRV-07

Started by AudioSpirit

Replies: 1
Views: 7,263

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

Replies: 2
Views: 5,660

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

QRV-07 DC problem

Started by alerma

Replies: 6
Views: 6,809

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

QRV-07 gain

Started by peterklimo

Replies: 3
Views: 5,508

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

Replies: 1
Views: 4,313

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

Replies: 0
Views: 4,556

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

Replies: 9
Views: 7,196

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

Replies: 13
Views: 8,613

March 19, 2015, 10:55:57 PM
by maust

QRV-08 Build #3

Started by BMF

Replies: 7
Views: 7,009

January 11, 2017, 12:25:18 AM
by BMF

Replies: 10
Views: 8,063

April 26, 2017, 04:32:13 PM
by chinook9

Replies: 71
Views: 47,041

August 24, 2012, 06:16:42 PM
by galouche

Replies: 4
Views: 5,445

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

Replies: 3
Views: 8,654

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

Replies: 9
Views: 10,954

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

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