Headphone amplifiers

QRV09

Started by csyao

Replies: 4
Views: 11,184

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

QRV-08 setup questions

Started by mabu0815

Replies: 4
Views: 9,823

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

QRV09 Capacitor wrong size

Started by jhmvanbeek

Replies: 5
Views: 11,038

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

Adding a volumecontrol to QRV-07

Started by Franz

Replies: 5
Views: 9,118

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

QRV-08 Parts Selection

Started by Houghtkj

Replies: 5
Views: 11,859

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

Regarding QRV07

Started by goldkenn

Replies: 6
Views: 8,456

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

QRV-07 DC problem

Started by alerma

Replies: 6
Views: 8,887

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

QRV-08 Build #3

Started by BMF

Replies: 7
Views: 11,980

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

Problem with QRV07

Started by Bertel

Replies: 7
Views: 8,204

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

QRV-08 PANEL MOUNT POT

Started by CapRock

Replies: 7
Views: 9,057

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

Headphone amplifier for HiFiMAN HE-6

Started by jimvibe

Replies: 7
Views: 12,647

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

My QRV08 Build

Started by Houghtkj

Replies: 7
Views: 12,949

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

QRV-04 failure

Started by savinalexandru

Replies: 8
Views: 13,857

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

QRV08 output voltage offset and the servo

Started by Kingston

Replies: 8
Views: 14,119

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

QRV06 topologie for power amplifier

Started by Digora

Replies: 9
Views: 10,729

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

QRV-08 Headphone amp with current feedback and super ....

Started by peranders

Replies: 9
Views: 13,120

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

QRV-08 (General Questions)

Started by cota

Replies: 9
Views: 9,176

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

QRV-03 question

Started by krainov

Replies: 9
Views: 12,207

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

QRV-08 Build Problems/Questions

Started by chinook9

Replies: 10
Views: 13,660

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

QRV-08 with 12V rails

Started by jezz

Replies: 11
Views: 13,736

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

QRV-08 - ett fel och ett misstag

Started by maust

Replies: 13
Views: 14,099

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

QRV07 & QRV08 build costs

Started by nightanole

Replies: 14
Views: 16,850

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

Power supply for QRV07

Started by renlute

Pages1 2

Replies: 16
Views: 14,995

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

QRV01 output stage

Started by goldkenn

Pages1 2

Replies: 19
Views: 16,324

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

QRV-02 support JIN

Started by peranders

Pages1 2

Replies: 21
Views: 18,690

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

QRV-08 power up

Started by svarthvitt

Pages1 2 3

Replies: 43
Views: 47,564

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

QRV-08 hum

Started by CapRock

Pages1 2 3 4 5

Replies: 63
Views: 59,223

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

QRV-08 Building and test

Started by galouche

Pages1 2 3 4 5

Replies: 71
Views: 69,513

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

QRV08 Setup Instructions

Started by BMF

Pages1 2 3 4 5 6 7

Replies: 97
Views: 73,797

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