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Summary of Contents for Manley 16 X 2 Tube Mixer
- Page 1 OWNER'S MANUAL MANLEY 16 x 2 TUBE MIXER MANLEY LABORATORIES, INC. MANLEY LABORATORIES, INC. 13880 MAGNOLIA AVE. CHINO, CA. 91710 TEL: (909) 627-4256 FAX: (909) 628-2482 http://www.manleylabs.com email: emanley @ manleylabs.com email: service @ manleylabs.com...
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Page 2: Table Of Contents
SECTION INTRODUCTION BACK PANEL & CONNECTING FRONT PANEL TECHNICAL DETAILS TUBE BOARDS OPTIONS SPECIFICATIONS ADJUSTMENTS TROUBLESHOOTING MAINS CONNECTIONS WARRANTY WARRANTY REGISTRATION TEMPLATES FOR STORING SETTINGS CONTENTS PAGE 4,5,6,7 15,16 20,21,22... -
Page 3: Introduction
THANK YOU!... for choosing the Manley 16 x 2 TUBE MIXER. While there are plenty of choices in low budget mixers and consoles in the $30K to $200K with a myriad of features, buttons, EQs, etc. there is very little available that simply feature sonic quality and a minimum of knobs. - Page 4 Relays. These are higher current lines. Multiple redundant pins are used for other supplies for reliability and lower resistance. One pair of pins carry 48 volts DC used for Phantom Power which will be on even if the power switch on the front panel of the mixer is off.
- Page 5 5) MIX BALANCED OUTPUT. Left and Right MIX outputs intended to feed a 2 track tape machine, DAT or A to D converter. These are transformer balanced Pin 2 hot. This is the mix of all 16 channels plus EXT inputs. The MIX control is the final level control for these outputs. All outputs MUTE during power up/down or if the MIX MUTE button is selected.
- Page 6 INSERT for the unity gain LINE INPUTS because we can patch an EQ or other device between the source and mixer and retain balancing and headroom and avoid unneeded extra components in the path but because Mic Preamps provide needed gain there is a definite need for INSERTS there.
- Page 7 13) TAPE PLAYBACK INPUTS. Used for returning a 2 track tape machine or DAT back to the mixer for monitoring, checking or just listening. Once one records a mix, it is always a good idea to check playback. The 5 position monitor select switch on the front hast to be in the "TAPE" position to hear the playback.
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Page 8: Front Panel
THE FRONT PANEL 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 1) MIC GAIN. This knob sets the mic preamp gain from 0 dB to 60 dB in 5 db increments. With highest gains, we advise a little caution. - Page 9 The power switch is actually a remote control that turns on the main transformer for all the volts that mixer uses. The "Phantom Power" transformer is "always-on" unless the power switch at the IEC receptical is turned off and is used also for that remote control.
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Page 10: Technical Details
TECHNICAL DETAILS CHANNELS: The Combi (XLR / 1/4") jack is wired to provide a 2400 ohm load for XLR sources like mics, and 82K ohms for 1/4" plugs either balanced or unbalanced. On MIC VERSIONS Phantom power can be injected with the back panel switches and uses a pair of traditional 6K8 resistors. -
Page 11: Tube Boards
THE TUBE BOARDS The left tube board takes the mix busses through the 1K MIX GAIN pots, then a 7:1 step-up transformer. The left signal is amplified by a 25db tube voltage amp/line driver and the right signal is sent to the right tube board. The voltage amp is a paralleled (for low noise) 12AT7wa direct coupled into a White Follower line driver which uses a 6044. -
Page 12: Options
BUSS VERSION 32x8; We had not intended on doing this, but it was a sincere request ... build me a 32x8 mixer, please. 1) Adds a front panel daughter board that contains contains 2 micro toggles and LEDs and relays to routethe post pan signals to 3 stereo busses of 4 total. -
Page 13: Specifications
Channel Input to Channel Output Frequency Response Unity Gain Frequency Response +40 dB Gain (Mic) THD + N Unity Gain (+4 dBu) THD + N Unity Gain (+28 dBu) THD + N +40 dB Gain DIM Distortion Unity Gain (+4 dBu) Maximum Input/Output Unity Gain Maximum Gain... -
Page 14: Adjustments
(from the back panel). 1) Using the EXT inputs, feed a +4 dBv (1.228 volt RMS) 1kHz sine wave into the mixer. Turn the MIX level to fully clockwise. Set the Monitor switch to MIX. -
Page 15: Troubleshooting
ONE SIDE WORKS FINE BUT THE OTHER SIDE IS DEAD - Let's assume this is not wiring. We are pretty sure it is the Mixer. If it were solid state you would generally send it back for repair. Being a tube unit, you can probably find the problem and fix it yourself in a few minutes. - Page 16 Easy - Replace the tube. Which one? The one that makes the most noise when you tap it. Usually this will be one of the smaller (gain stage) tubes closest to the front. The Mixer will have to be on, connected and speakers up but not too loud for the sake of your speakers.
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Page 17: Mains Connections
Note: This unit has been factory wired for your country. If you plan to take the unit to countries with a different mains voltage you will need to send the Limiter to Manley Labs for the correct power transformer - or use AC voltage converters. See page 17 to convert this unit for a different mains voltage. -
Page 18: Warranty
WARRANTY All Manley Laboratories equipment is covered by a limited warranty against defects in materials and workmanship for a period of 90 days from date of purchase to the original purchaser only. A further optional limited 5 year warranty is available to the original purchaser upon proper registration of ownership within 30 days of date of first purchase. -
Page 19: Warranty Registration
MODEL ____________________ SERIAL No. ______________________ PURCHASE DATE ______________ SUPPLIER ______________________ ------------------------------------------------------------------------------------------------------ PLEASE DETACH THIS PORTION AND SEND TO MANLEY LABORATORIES MODEL MANLEY 16x2 TUBE MIXER SERIAL No. MSMP_____________ PURCHASE DATE ______________ SUPPLIER _______________________ NAME OF OWNER _______________________________________________ NAME OF STUDIO _______________________________________________... - Page 21 LINE...
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