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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-08 hum

Started by CapRock

Pages1 2 3 4 5

Replies: 63
Views: 34,403

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

Replies: 4
Views: 5,010

January 31, 2017, 08:38:38 PM
by peranders

Replies: 7
Views: 6,326

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

Replies: 5
Views: 7,075

March 22, 2012, 07:57:26 PM
by peranders

Replies: 4
Views: 5,273

March 20, 2019, 11:03:23 AM
by peranders

QRV-08 power up

Started by svarthvitt

Pages1 2 3

Replies: 43
Views: 25,857

June 13, 2019, 09:11:47 PM
by svarthvitt

Replies: 4
Views: 5,250

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

Replies: 11
Views: 7,915

January 17, 2015, 09:47:29 AM
by peranders

Replies: 2
Views: 4,861

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

QRV01 output stage

Started by goldkenn

Pages1 2

Replies: 19
Views: 12,285

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

Replies: 0
Views: 3,981

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

Replies: 9
Views: 8,110

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

Replies: 14
Views: 13,522

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

Replies: 1
Views: 4,054

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

Replies: 2
Views: 4,386

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

Replies: 8
Views: 8,148

December 06, 2013, 09:38:49 PM
by peranders

QRV08 Setup Instructions

Started by BMF

Pages1 2 3 4 5 6 7

Replies: 97
Views: 40,110

July 25, 2016, 05:28:38 AM
by BMF

QRV09

Started by csyao

Replies: 4
Views: 6,264

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

Replies: 5
Views: 6,128

March 02, 2014, 10:32:35 AM
by jhmvanbeek

QRV09 Voltage

Started by Forte

Replies: 4
Views: 5,323

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

Replies: 10
Views: 3,036

January 12, 2025, 08:40:08 PM
by peranders

Replies: 1
Views: 4,682

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

Replies: 6
Views: 6,102

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

Replies: 4
Views: 8,708

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

Replies: 0
Views: 4,614

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

Replies: 2
Views: 4,744

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

Replies: 1
Views: 4,655

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

Replies: 3
Views: 4,819

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

Replies: 1
Views: 4,110

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

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