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.com
CONTENTS
SECTION PAGE
INTRODUCTION 3
MAINS CONNECTIONS 4
CONNECTING YOUR PREAMPLIFIER 5
FIGURE 1 FRONT PANEL 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. Minimalist signal path is accomplished with
a few short, wide PC traces and very little wire. The signal wire is six nines pure copper, teflon insulated
and well shielded. The signal is direct coupled through the tube stages and is only passed through one
capacitor per side -and these are premium MIT foil/film caps . The gain controls are precise conductive
plastic pots with thw main volume being a custom unit specially imported that has superior electrical and
mechanical characteristics. These controls are a large part of why this preamp has such a musical appel
similar to precision passive preamps. While passive preamps are notoriously sensitive to interconnect
cables, this preamp will be easier and probably less costly to interface due to its constant low impedance
output and high impedance inputs. Finally (but really initially) the power supply is a simple, highly
filtered, well engineed design without the reliability problems common in other high voltages
supplies.
The elegant front panel finish is a high purity plated gold that complements the electronics both visually
and in its long lasting outstanding quality. We hope you agree with us and hundreds of satisfied users
and studios around the world that this preamp really delivers. Please take a few moments to read
through this manual, there may be features and information about this preamplifier which you should
familiarise yourself with.
Thank you again, and please enjoy!
GENERAL NOTES
LOCATION & VENTILATION
The Purist Preamplifier must be installed in a stable location with ample ventilation. It is recommended,
if this unit is rack mounted, that you allow enough clearance on the top and bottom of the preamp such
that a constant flow of air can flow through the ventilation slots. We also recommend that the
preamplifier be placed at least 10 inches away from its amplifier.
WATER & MOISTURE
As with any electrical equipment, this preamplifier should not be used near water or moisture.
SERVICING
The user should not attempt to service the preamplifier beyond that described in the owner's manual.
Refer all servicing other than tube replacement to Manley Laboratories.
SPECIAL NOTES
Tubes may become loose during transit. Straighten and press down each tube before plugging the
preamplifier into the mains socket. Furthermore, do not touch the tubes after the preamplifier has been
switched on, as the tubes do become very hot during operation and should only be handled after the
power has been turned off and the tubes have cooled.
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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.
GREEN/YELLOW EARTH terminal
BLUE NEUTRAL terminal
BROWN LIVE terminal
As the colours of the wires in the mains lead may not correspond with the coloured marking
identifying the terminals in your plug proceed as follows;
The wire which is coloured GREEN/YELLOW must be connected to the terminal in the plug
which is marked by the letter E or by the safety earth symbol or coloured GREEN or GREEN
and YELLOW.
The wire which is coloured BLUE must be connected to the terminal in the plug which is
marked by the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal in the plug which is
marked by the letter L or coloured RED.
DO NOT CONNECT/SWITCH ON THE MAINS SUPPLY UNTIL ALL OTHER CONNECTIONS HAVE BEEN MADE.
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