Phono RIAA amplifiers

QSXM2 build - TRANSISTORS ARE RED HOT!!!

Started by AAmer75

Replies: 1
Views: 7,870

September 13, 2011, 10:02:48 PM
by peranders

DYNAVECTOR 20XL Cartidge on QSXM2 RIAA amplifier

Started by AAmer75

Replies: 1
Views: 9,086

September 14, 2011, 06:22:52 PM
by peranders

QSXM3 with LTC1050 servo?

Started by Brambus

Replies: 6
Views: 14,026

January 21, 2018, 12:03:46 PM
by Nugman

Serious imbalance with SSM Version

Started by Cel

Pages1 2

Replies: 25
Views: 19,913

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

QSXM2 - The Swiss Cheese

Started by DFM

Replies: 2
Views: 7,798

February 17, 2007, 05:40:37 PM
by DFM

newbie in QSXM2 , just received PCB

Started by Edmund Chan

Pages1 2

Replies: 15
Views: 16,542

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

Critical transistors in QSXM2

Started by fantast

Replies: 5
Views: 9,548

January 08, 2012, 08:52:25 PM
by fantast

RIAA correction

Started by fantast

Replies: 1
Views: 7,716

October 13, 2013, 10:08:30 PM
by peranders

QSXM2 current neccesary

Started by fantast

Replies: 2
Views: 7,934

December 22, 2011, 08:30:48 PM
by fantast

QSXM2 - news and question

Started by fantast

Replies: 2
Views: 5,500

November 08, 2020, 11:40:35 AM
by fantast

input bias servo with OP177FPZ

Started by fantast

Pages1 2

Replies: 16
Views: 17,323

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

SSM version

Started by fantast

Replies: 2
Views: 8,304

November 13, 2012, 07:37:28 PM
by fantast

QSXM2 balance output

Started by gianluca

Replies: 5
Views: 8,562

September 03, 2007, 07:07:32 PM
by peranders

QSXM2 doubt

Started by gianluca

Replies: 6
Views: 9,402

October 28, 2009, 11:28:10 AM
by peranders

EMI filter MuRATA 10nF/100V Max 6A

Started by gipione

Replies: 3
Views: 8,666

March 16, 2013, 07:42:14 AM
by peranders

I am confusing recently about transistor matching

Started by goldkenn

Replies: 1
Views: 8,023

March 11, 2011, 10:51:57 AM
by peranders

Question about QSXM2, regarding our email conversation

Started by goldkenn

Replies: 3
Views: 7,668

February 19, 2010, 01:22:34 PM
by peranders

QSXM3 Noise Floor Or Hum

Started by goldkenn

Replies: 9
Views: 11,158

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

QSXM3 build check

Started by goldkenn

Replies: 4
Views: 6,752

October 19, 2009, 07:51:43 PM
by goldkenn

How To Change Gain For QSXM2 and QSXM3

Started by goldkenn

Replies: 6
Views: 10,559

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

QSXM2: Start preparing!

Started by goldkenn

Replies: 6
Views: 8,159

October 25, 2009, 04:31:13 PM
by goldkenn

QSXM2, separate PSU ?

Started by Goofy

Replies: 3
Views: 7,796

November 05, 2017, 05:39:35 PM
by peranders

Transistor select for QSXM2

Started by horvlas

Replies: 6
Views: 11,537

August 09, 2012, 06:36:17 PM
by peranders

QSXM3 FET

Started by Marcos

Replies: 1
Views: 8,736

August 06, 2005, 10:23:18 AM
by peranders

QSXM2 Input Transistor Biasing

Started by MattB94

Replies: 0
Views: 6,544

October 05, 2023, 02:51:41 AM
by MattB94

QSX03 A new RIAA amp with passive RIAA correction

Started by peranders

Pages1 2

Replies: 23
Views: 37,753

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

QSXM3 hum problems

Started by peranders

Pages1 2

Replies: 18
Views: 18,080

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

Ribbon microphone

Started by roberto.missoli

Replies: 6
Views: 9,990

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

SYMMETRICAL CARTRIDGE-CONNECTION

Started by roberto.missoli

Replies: 5
Views: 8,806

December 13, 2008, 08:59:06 PM
by peranders

QSXM2: Greetings from Germany / Bulgaria!

Started by sinigersky

Replies: 5
Views: 8,512

April 16, 2007, 06:55:52 AM
by peranders