MANLEY LABORATORIES, INC. OWNER'S MANUAL THE PURIST PREAMPLIFIER MANLEY LABORATORIES, INC. 13880 MAGNOLIA AVE. CHINO, CA. 91710 TEL: (909) 627-4256 FAX: (909) 628-2482 email: emanley@netcom.com http://www.manleylabs.
CONTENTS SECTION PAGE INTRODUCTION 3 MAINS CONNECTIONS 4 CONNECTING YOUR PREAMPLIFIER 5 FIGURE 1 FRONTPANEL 6 FIGURE 2 REAR PANEL 7 OPERATIONAL NOTES 8 SPECIFICATIONS 9 WARRANTY 10 WARRANTY REGISTRATION 11
INTRODUCTION THANK YOU!... for choosing the Manley Laboratories "The Purist Preamplifier". Designed by David Manley, the Purist Preamplifier uses the best available parts with the shortest, cleanest, signal path possible. This Preamp has all the vital signal conducting electronics located near the input / output jacks with the controls connected with long shafts. The high-current line circuit employed here is one we have develop and refined over the years in our MANLEY Professional series.
MAINS CONNECTIONS Your preamplifier has been factory set to the correct mains voltage for your country. The voltage setting is marked on the serial badge, located on the rear panel. Check that this complies with your local supply. Export units for certain markets have a moulded mains plug fitted to comply with local requirements. If your unit does not have a plug fitted the coloured wires should be connected to the appropriate plug terminals in accordance with the following code.
CONNECTING YOUR PREAMPLIFIER Setting up your preamplifier is rather easy. 1. Please refer to page 7 diagram 2 for an illustration of the back of the preamplifier. 2. There are three sets of main outputs, two identical sets of UNBALANCED RCA and the other BALANCED XLR. The BALANCED XLR's can be used with unbalanced inputs and either "leg" can be shorted to ground with no ill effects. This output is 6 dB louder than the unbalanced outputs because both "legs" contribute to the measured output.
FRONT PANEL SELECT SET GAIN BALANCE TRIM VOLUME L R AUX TAPE CD TUNER VIDEO HIGH MED LOW OPERATE MANLEY 1 0 MUTE VARIABLE FEEDBACK A B C D A E F G H SET GAIN Switch to select general gain of the preamp to personal preferences. Due to a lack of current standards of power amp and preamp sensitivity this feature provides a simple method to scale the overall gain of the system or allow one to reduce the power amp gain to reduce noise.
REAR PANEL A B C D E F G H I J K A FUSE HOLDER Replace with 1A SLO-BLO fuse only. B IEC MAINS SOCKET Standard IEC mains socket (120/240 VAC as indicated) C OUTPUT (XLR) Left (upper) and Right (lower) output XLR's. BALANCED D OUTPUT (RCA) Separate output to the Left and Right XLR outputs. UNBALANCED E OUTPUT (RCA) Paralelled output to the other RCA outputs. UNBALANCED F RECORD OUTPUT Set at input line stage level. Not buffered.
OPERATIONAL 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 preamplifier and down to turn off the preamplifier. RUNNING It is not recommended that you leave your preamplifier permanently switched on. This only wastes electricity and tube life. Your preamplifier has solid state rectification and reaches peak operating condition in approximately 30 minutes. TUBE LIFE As with all tubes, their quality degrades with age.
SPECIFICATIONS Vacuum Tubes: Approved substitutions for 5751 Approved substitutions for 6414 2 x 5751, 2 x 6414 (Mil Spec) 12AX7A( or 6072 with less gain) 12BH7 ( or 12AT7 in a pinch) Lamp type 1/4" X 1 1/4", 12 volt, .15 amp Gain BAL ccw LOW - 10 dB MED - 12.5 dB HIGH - 15.5 dB (line stage) BAL cw 19 dB 22 dB 25.
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.
WARRANTY REGISTRATION We ask that you please fill out this registration form and send the bottom half to: MANLEY LABORATORIES REGISTRATION DEPARTMENT 13880 MAGNOLIA AVE. CHINO CA, 91710 Or you may FAX this form in to: 909-628-2482 Registration entitles you to product support, full warranty benefits, and notice of product enhancements and upgrades. You MUST complete and return the following to validate your warranty and registration. Thank you again for choosing Manley Laboratories.
