Phono RIAA amplifiers

How To Change Gain For QSXM2 and QSXM3

Started by goldkenn

Replies: 6
Views: 9,968

March 07, 2011, 06:22:26 AM
by peranders

Ribbon microphone

Started by roberto.missoli

Replies: 6
Views: 9,383

November 14, 2011, 09:59:26 PM
by peranders

QSXM2 - BOM questions, etc.

Started by tk-don

Replies: 8
Views: 10,407

March 02, 2014, 08:40:54 AM
by peranders

QSXM3 Noise Floor Or Hum

Started by goldkenn

Replies: 9
Views: 10,751

August 18, 2010, 12:55:04 PM
by goldkenn

QSXM2 - various debugging

Started by tk-don

Replies: 13
Views: 12,604

June 08, 2015, 09:36:21 PM
by tk-don

newbie in QSXM2 , just received PCB

Started by Edmund Chan

Pages1 2

Replies: 15
Views: 16,092

June 22, 2010, 02:29:02 PM
by Edmund Chan

QSXM2 troubleshooting!!

Started by W1DAN

Pages1 2

Replies: 16
Views: 11,532

February 13, 2021, 01:57:44 AM
by W1DAN

input bias servo with OP177FPZ

Started by fantast

Pages1 2

Replies: 16
Views: 16,122

December 31, 2011, 07:21:52 PM
by peranders

QSXM3 hum problems

Started by peranders

Pages1 2

Replies: 18
Views: 17,723

April 11, 2006, 11:58:37 AM
by peranders

QSX03 A new RIAA amp with passive RIAA correction

Started by peranders

Pages1 2

Replies: 23
Views: 36,005

March 04, 2023, 09:05:31 AM
by goldkenn

Serious imbalance with SSM Version

Started by Cel

Pages1 2

Replies: 25
Views: 18,437

December 31, 2014, 09:07:17 AM
by peranders

QSXM2 problem

Started by zayance

Pages1 2 3

Replies: 39
Views: 23,605

January 30, 2021, 11:15:40 AM
by peranders

qsxm3

Started by yiancar

Pages1 2 3 4

Replies: 55
Views: 33,552

November 02, 2013, 07:41:46 PM
by peranders