Manley DIRECT INPUT 50/50 STEREO AMPLIFIER User Manual
Page 6
INPUT
RCA
OUTPUT B+ MAINS
FUSES
IEC MAINS
IN
Amplifier Overhead View
with top cover removed
OUTPUT TUBES:4 x RUSSIAN 6CA7/EL34
The 6CA7's used are the Russian up-rated 6CA7's. This has been proven to be the rugged and reliable of this type and
we strongly emphasize that only the RUSSIAN 6CA7's should be used in this amplifier. The MANLEY DIRECT INPUT 50/50
has been thoroughly optimised around this tube. Use of unapproved tube types can and will void your warranty.
DRIVER TUBES: 2 x 6414
The 6414 is an American military uprated version of the 12BH7A with increased current drive.
INPUT TUBES: 2 x 12AT7WA
The 12AT7WA has several equivalent numbers, (12AT7, 12AT7A, 6201, ECC81, etc.) Any of these types may be
used. We have selected this 12AT7WA very carefully for noise, microphonics, and constancy. Replacement tubes of premium
quality are always available from MANLEY LABORATORIES.
3
4
6414
12AT7
6414
12AT7
2
1
TUBE BIAS ADJUST POINTS
1
2
3
4
- MONO & DUAL MONO MICROPHONE PREAMPLIFIERS (15 pages)
- MONO & DUAL MONO 40 dB MICROPHONE PREAMPLIFIERS (16 pages)
- 60 dB MICROPHONE PREAMPLIFIER (11 pages)
- MIC EQ 500 COMBO (16 pages)
- ENHANCED MID FREQUENCY PULTEC EQUALIZER (15 pages)
- ENHANCED PULTEC EQP1-A EQUALIZER (16 pages)
- MONO & DUAL MONO TUBE DIRECT INTERFACE MODELS (11 pages)
- TNT MICROPHONE PREAMPLIFIER (26 pages)
- VOXBOX - MVBXA 4/2003 (26 pages)
- VOXBOX - MVB 1996 - 2/2000 and MVBX 6/2000 - 4/2003 (25 pages)
- СORE REFERENCE CHANNEL STRIP - MCORE001-025 4/2014 - 5/2014 (15 pages)
- СORE REFERENCE CHANNEL STRIP - MCORE026 and up 7/2014 (16 pages)
- HIGH FREQUENCY (DE-ESS) LIMITER (12 pages)
- MASSIVE PASSIVE STEREO TUBE EQ - MSMPX 2/2004 (33 pages)
- MASSIVE PASSIVE STEREO TUBE EQ - MSMP 1998 - 2/2004 (33 pages)
- ELECTRO-OPTICAL LIMITER - 1994 - 1997 MANELOP020-318 (14 pages)
- STEREO VARIABLE MU LIMITER / COMPRESSOR - 3/2004 (18 pages)
- STEREO VARIABLE MU LIMITER / COMPRESSOR - 1994 - 3/2004 (18 pages)
- MONO VARIABLE MU LIMITER / COMPRESSOR 5670 MODELS (13 pages)
- ELOP (14 pages)
- ELECTRO-OPTICAL LIMITER - 1997 - 9/2000 MELOPB319 - 564 (15 pages)
- REFERENCE MICROPHONES - 1992 - 2010 (10 pages)
- REFERENCE MICROPHONES - 2010 - present (11 pages)
- MicMAID 4x4 Matrix-Switcher 10/2010 - present (12 pages)
- BACKBONE Mastering Insert Switcher 2003 - present (26 pages)
- SLAM! (29 pages)
- The WAVE DAC/Preamp 24/96 Version Serial Code WAVE016-present 2002 - present (22 pages)
- The WAVE DAC/Preamp 20 Bit Version Serial Code WAVE000-015 1999 - 2002 (20 pages)
- 500 / 200 WATT MONOBLOCK (13 pages)
- 500 / 200 WATT MONOBLOCK (12 pages)
- 250 / 100 WATT MONOBLOCK AMPLIFIER (13 pages)
- 16 x 2 TUBE MIXER 2002 - present above 106 (22 pages)
- 16 x 2 TUBE MIXER 2000 - 2002 up to 106 (22 pages)
- TAPE HEAD PREAMPLIFIERS (15 pages)
- DIGITAL TO ANALOGUE CONVERTER 1990 - 1997 (9 pages)
- DIGITAL TO ANALOGUE CONVERTER HDCD DAC 1993 - 2000 (11 pages)
- DIGITAL TO ANALOGUE CONVERTER DAC 1994 - 1995 (10 pages)
- JUNIOR DAC 1995 - 2000 (11 pages)
- LANGEVIN MINI MASSIVE STEREO EQ (31 pages)
- LANGEVIN ALL-DISCRETE PULTEC EQP1-A TYPE EQUALIZER (12 pages)
- LANGEVIN ELECTRO-OPTICAL LIMITER (14 pages)
- LANGEVIN DUAL MONO MICROPHONE PREAMPLIFIER WITH EQ (15 pages)
- Langevin Dual Vocal Combo 1999 - 4/2001 LDVC000 - LDVC178 (20 pages)
- Langevin Dual Vocal Combo 4/2001 - present LDVCP179 and up (22 pages)
- Langevin DAC 1993 - 2000 (11 pages)