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MANLEY
LABORATORIES, INC.
OWNER'S MANUAL
MANLEY NEO-CLASSIC SE / PP
300B AMPLIFIER
MANLEY LABORATORIES, INC.
13880 MAGNOLIA AVE.
CHINO, CA. 91710
TEL: (909) 627-4256
FAX: (909) 628-2482
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CONTENTS SECTION PAGE INTRODUCTION 3 MAINS CONNECTIONS 4 CONNECTING YOUR AMPLIFIER 5 DIAGRAM 2 TOP PANEL 6 BIAS PROCEDURES 7 OPERATIONAL NOTES 8 SPECIFICATIONS 9 WARRANTY 10 WARRANTY REGISTRATION 11
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INTRODUCTION THANK YOU!... for choosing the Manley Neo-Classic SE / PP 300B Monoblock Amplifiers. The Manley Neo-Classic SE / PP 300B Amplifiers use only the best available components, with the shortest and cleanest signal path possible. These amps have the unique ability to switch from Single ended to Push-Pull topologies and the ability to adjust the amount of negative feedback in 1 dB steps. This amp is designed to provide our customers with a versatile little amplifier that can do it all. L
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READ THIS PAGE BEFORE YOU SET UP THE AMPS, PLEASE READ THIS PAGE BEFORE YOU SET UP THE AMPS, PLEASE READ THIS PAGE BEFORE YOU SET UP THE AMPS, PLEASE READ THIS PAGE BEFORE YOU SET UP THE AMPS, PLEASE READ THIS PAGE BEFORE YOU SET UP THE AMPS, PLEASE IMPORTANT Never operate this amp without a speaker or load connected. Never drive this amp into a short circuit. Most solid state amps can be operated without a load or speaker and some can drive a short circuit because of protection circuitry. These
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MAINS CONNECTIONS Your amplifier 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. GREEN/YELLOW EA
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CONNECTING YOUR AMPLIFIER Setting up your amplifiers is rather easy. 1. Connect all source components (turntable, CD, Tuner, Tape DAT, etc.) to your preamplifier. 2. Connect the interconnects from the output of the preamplifier or switching center to the RCA input on the top rear of the amplifiers. 3. Connect the hot or "+" speaker cable to the red binding post and the common or "-" speaker cable to the black binding post (See diagarm 2). Ensure that the other end of the cable is conn
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MANLEY SE / PP 300B TRIODE MONOBLOCK AMPLIFIER A O B H L D F J M I K G E N C P Amplifier Overhead View A RCA Input Jack B Speaker Terminals C Mains input IEC/Switch module Mains fuse - Replace only with same type and value Power Switch D Tube 5U4 Rectifier E Tube 5U4 Rectifier F Power Tube 300B G Power Tube 300B H Bias trimmer ( for F & L ) I Bias trimmer ( for G & N ) J Input Tube 6SL7 K Driver Tube 6SN7 L Bias test point for 300B (F) M Variable Feedback Switch N Bias test point fo
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OPERATIONAL NOTES SWITCHING SINGLE-ENDED 11 / PUSH-PULL 24: This amplifier has the unique feature of being able to choose between two circuit topologies. You are able to switch between each mode while the amplifier is turned on and playing music. In SINGLE-ENDED mode the amplifier uses both 300Bs in parallel. The advantage is a minimalist circuit requiring no "phase splitter",The disadvantage is a less efficient circuit that produces a fraction of the power of PUSH-PULL. In PUSH-PULL mode eac
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5.) The correct bias reading in "Single-Ended" mode is 550 mVDC. A reading of 540-560mVDC will be within specs. The bias in single-ended mode was set at the factory. If, however, the S-E bias reading is out of spec after warm up, the bias may be adjusted as follows: 6.) Carefully turn the amp on it's left side, Be sure to brace the amp so as to prevent roll over. 7.) Locate the 1/4'' round hole in the bottom cover, near the front group of ventilation slots. 8.) Make sure the amp is in S-E mo
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SPECIFICATIONS Vacuum Tubes: 2 x 300B (Output), 1 x 6SN7 (Driver), 1 x 6SL7 (Input) 2 x 5U4 (Rectifier) Output Power @ 1Khz SINGLE-ENDED: 5 dB FB - 11 Watts @ 3% THD. PUSH-PULL: 5 dB FB - 24 Watts @ 1.5% THD. Frequency Response +/- .5 dB SINGLE-ENDED: 5 dB FB - 15 Hz - 15 Khz (measured at 5 watts) PUSH-PULL: 5 dB FB - 10 Hz - 20 Khz Input Sensitivity @ 5db FB SINGLE ENDED: 700mV. PUSH-PULL: 450mV. S/N Ratio SINGLE ENDED: 83.5dB Ref. 1W; 2.83v//8 ohms,20Khz BW;
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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 transferrable warranty is available upon proper registration of ownership within 30 days of date of first purchase. Proper registration is made by filling out and returning to the factory the warranty card attached to this general warranty statement, along with a c
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WARRANTY REGISTRATION We ask, grovel and beg that you please fill out this registration form and send the bottom half to: MANLEY LABORATORIES REGISTRATION DEPARTMENT 13880 MAGNOLIA AVE. CHINO CA, 91710 USA Or you may FAX this form in to: +1 (909) 628-2482 or you may fill in the online warranty registration form found in the Tech Support section of our website www.manleylabs.com or you can be really diligent and register your warranty three times to see if we get confused! Registration entitles
