Headphone amplifiers

QRV-08 hum

Started by CapRock

Pages1 2 3 4 5

Replies: 63
Views: 50,557

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

BF471/BF472 in QRV01

Started by goldkenn

Replies: 1
Views: 7,638

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

QRV-08 PANEL MOUNT POT

Started by CapRock

Replies: 7
Views: 8,644

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

Power supply for QRV07

Started by renlute

Pages1 2

Replies: 16
Views: 14,180

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

Which kit good to Balanced Headamp?

Started by palchiu

Replies: 3
Views: 6,725

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

QRV01 output stage

Started by goldkenn

Pages1 2

Replies: 19
Views: 15,477

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

QRV07 & QRV08 build costs

Started by nightanole

Replies: 14
Views: 16,358

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

Simple board for THS6012 (TPA6120)

Started by misterstarshine

Replies: 4
Views: 10,852

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

Regarding QRV07

Started by goldkenn

Replies: 6
Views: 8,058

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

Best headphone am for ~8ohms...?

Started by Bertel

Replies: 3
Views: 6,510

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

Problem with QRV07

Started by Bertel

Replies: 7
Views: 7,889

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

Questions about QRV01 QRV03 QRV08

Started by semola

Replies: 1
Views: 6,524

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

QRV-08 (General Questions)

Started by cota

Replies: 9
Views: 8,785

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

wich of the amps have better quality?

Started by samsagaz

Replies: 1
Views: 5,956

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

Case for QRV08

Started by joze7205

Replies: 0
Views: 5,624

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

QRV-07 Power supply stage

Started by ColinS

Replies: 1
Views: 5,852

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

QRV03 questions

Started by peranders

Replies: 0
Views: 5,821

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

Headphone amp for AKG K-1000

Started by goldkenn

Replies: 1
Views: 6,648

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

QRV06 topologie for power amplifier

Started by Digora

Replies: 9
Views: 10,345

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

QRV-07 gain

Started by peterklimo

Replies: 3
Views: 7,240

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

Adding a volumecontrol to QRV-07

Started by Franz

Replies: 5
Views: 8,822

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

qrv-07 building and test

Started by Jinkslynx

Replies: 2
Views: 7,431

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

QRV-07 DC problem

Started by alerma

Replies: 6
Views: 8,532

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

QRV-04 as a line stage

Started by peranders

Replies: 0
Views: 6,043

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

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

Started by peranders

Replies: 9
Views: 12,733

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

QRV-02 support JIN

Started by peranders

Pages1 2

Replies: 21
Views: 17,821

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

QRV-07 problem

Started by peranders

Replies: 0
Views: 6,077

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

Tobias' QRV-07 bygge

Started by peranders

Replies: 0
Views: 6,803

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

QRV-07

Started by AudioSpirit

Replies: 1
Views: 9,644

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