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INTRODUCTION
!
THANK YOU!...
for choosing the Manley Laboratories CONTROL MASTER Preamplifier. Designed by David Manley,
the Mastering Room LINE Preamplifier uses the best available parts with the shortest, cleanest, signal
path possible. With the use of our own in-house C.N.C. milling machine, we can provide you with a
superb sounding machine with elegant packaging. The design is completely DUAL-MONO with
separate power supplies for each channel including two custom designed power transformers. The audio
boards are also separate. All the wiring from the rear input connectors to the front selector switch and
precision custom stepped attenuator is painstakingly hand wired using professional studio twisted pair
shielded six-9's copper cable for optimum shielding and lo-noise characteristics, and although it would
be much cheaper, easier, and faster to simply put these leads on several feet of printed circuit board
traces like most everybody else does, we opt for purity of sound however many more hours it takes. The
high-current line amplifier circuit employed here is one we have developed and refined over the years in
our MANLEY Professional series. We hope you agree with us and hundreds of satisfied users and
studios around the world that this circuit 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 CONTROL MASTER 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.
WARNING!
TO PREVENT THE RISK OF ELECTRIC SHOCK
DO NOT OPEN THE CABINET
REFER SERVICING TO
QUALIFIED PERSONEL