Table of Contents
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MANLEY
LABORATORIES, INC.
M A N L E Y
S TE R E O
V AR I ABL E
M U®
L I M I T E R
C O M P R E S S O R
O W N E R ' S
M A N U A L
TUBES
RULE
brought to you by the clever folks at:
MANLEY LABORATORIES, INC.
13880 MAGNOLIA AVE.
CHINO, CA. 91710 USA
TEL: (909) 627-4256
FAX: (909) 628-2482
email: emanley@manleylabs.com
website: www.manleylabs.com
Rev 2-26-2004
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Summary of Contents for Manley Stereo Variable Mu
- Page 1 O W N E R ' S M A N U A L TUBES RULE brought to you by the clever folks at: MANLEY LABORATORIES, INC. 13880 MAGNOLIA AVE. CHINO, CA. 91710 USA TEL: (909) 627-4256 FAX: (909) 628-2482 email: emanley@manleylabs.com website: www.manleylabs.com...
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Page 2: Table Of Contents
CONTENTS SECTION PAGE INTRODUCTION MAINS CONNECTIONS INSTALLATION FRONT PANEL REAR PANEL EXAMPLE SETTINGS FRONT PANEL ADJUSTMENTS OPERATIONAL NOTES TECHNICAL NOTES MASTERING AND M/S MODELS GAIN REDUCTION CURVES SPECIFICATIONS SERVICE ADJUSTMENTS WARRANTY WARRANTY REGISTRATION BLANK TEMPLATE TO STORE SETTINGS... -
Page 3: Introduction
INTRODUCTION THANK YOU!... for choosing the Manley Laboratories Stereo Variable Mu ® Limiter Compressor. this unit has been our best selling product for many years. It is one of the very few compressors that has become a real standard in Mastering studios and contributed to most hit records over the last decade and probably the next. -
Page 4: Mains Connections
If you have no idea why a fuse might have just blown on its own, you might want to consult with Manley Labs or your dealer for further advice as Something Very Bad might have occured, like the power transformer might have decided to retire early. -
Page 5: Installation
® If you wish to keep pizzas warm on top of the Manley Variable Mu , please use a plate so the cheese does not drip down through the top cover holes into the unit. Your Warranty... -
Page 6: Front Panel
FRONT PANEL MANLEY MANLEY STEREO VARIABLE MU® LIMITER COMPRESSOR STEREO VARIABLE MU® LIMITER COMPRESSOR 12 10 12 10 RECOVERY RECOVERY OUTPUT OUTPUT DUAL INPUT DUAL INPUT OUTPUT OUTPUT RECOVERY RECOVERY MANLEY MANLEY MANLEY MANLEY FAST FAST FAST FAST SLOW SLOW... -
Page 7: Rear Panel
REAR PANEL FUSE 2A SLOBLO CIRCUIT GROUNDS CHANNEL B INPUT CHASSIS CHANNEL A INPUT CHANNEL B OUTPUT CHANNEL A OUTPUT IEC POWER CONNECTOR FUSE HOLDER Houses a standard 2 Amp SLO-BLO fuse. Replace only with the same type and size. IEC MAINS SOCKET Standard 3 pin AC mains socket. -
Page 8: Example Settings
this page for example settings... -
Page 9: Front Panel Adjustments
FRONT PANEL ADJUSTMENTS Initial basic settings for line level use: -Begin with POWER ON, BYPASS, SEP and COMPRESS -Set all controls at 12:00 ( or THRESHOLD at min) (for calibration feed in a 1Khz oscillator at 0 VU and confirm the return from the unit is actually 0 VU. Switch from BYPASS to IN and adjust the individual OUTPUTs to also return 0 VU.) -Switch from BYPASS to IN and adjust the DUAL INPUT to get 3 to 6 dB of gain reduction on the meter with either COMPRESS or LIMIT. -
Page 10: Operation Notes
OPERATION NOTES The "MANLEY STEREO VARIABLE MU LIMITER - COMPRESSOR" is designed for multiple purposes. The unit can be used stereo or as 2 individual channels of limiting or compression. It can be used as a balanced line amp capable of 24 db! of gain and as a pre-amp for low level signals. . With higher input gain settings the unit can be used to create gentle tube distortion if desired. -
Page 11: Technical Notes
TECHNICAL NOTES SWITCHING ON The power switch is located on the right hand corner of the front panel. Flip the switch up to turn on the Limiter Compressor and down to turn off . TUBE LIFE As with all tubes, their quality degrades with age. This is due to cathode emission, a natural process found in all tubes. -
Page 12: Mastering And M/S Models
NOTES ON MASTERING MODIFICATIONS The Mastering Version of the Variable MU Limiter Compressor uses expensive Greyhill rotary switches with gold contacts where conductive plastic pots were used. The steps are determined with a large number of 1% precision metal film 1/2 watt resistors. The best conductive plastic pots only have 10% or 20% tolerance. The ten fold improvement in precision helps a great deal in left-right matching. -
Page 13: Gain Reduction Curves
this page is for G.R. Curves... -
Page 14: Specifications
/ line amp and Transformer Output per channel. Vacuum tube audio rectification for side chain. Custom Meters, Attenuators, etc. Input and output transformers designed by David Manley and wound in- house at Manley Lab's magnetics department. Input Impedance... -
Page 15: Service Adjustments
SERVICE ADJUSTMENTS These are factory presets. These should only be altered after a re-tube. METER CAL - GR ACCURACY 1. Supply a line level input signal (1K TONE OK) 2. Adjust front controls for NO LIMITING 3. Back down the reduction control to achieve 6dB of actual limiting as observed on an external calibrated audio frequency test meter. -
Page 16: Warranty
Manley Importer for that specific country or region. "Grey Market" purchases are not covered by any warranty. In the case that a Manley Laboratories product must be returned to the factory from outside the USA, customer shall adhere to specific shipping, customs, and commercial... -
Page 17: Warranty Registration
You MUST complete and return the following to validate your warranty and registration. Thank you again for choosing Manley gear and reading all the way through The Owner's Manual. (We really mean that sincerely, the bit about thanking you for choosing our gear. THANK YOU!!!) -
Page 18: Blank Template To Store Settings
this page for templates...
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