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INTRODUCTIONTHANK YOU!...
for choosing the Manley LAB SERIES Monoblock 100 watt Amplifiers. Designed by David Manley,
the Manley Monoblock 100 watt Amplifiers use only the best available components, with the shortest
and cleanest signal path possible.
The circuit and the components used have been chosen carefully after years of development and
refinement for reliability, constancy and most importanly, musical, accurate, and emotional delivery of
the sound. The circuit topology is similar to other designs in the MANLEY range. This amplifier is
configured to switch between triode or tetrode operation which allows the user to choose between the
sonic benefits and seductive qualities of triode and the more powerful tetrode operation mode. We
emphasize big beefy resevoir capacitors in the high voltage supplies giving plenty of instant energy for
dynamic performance of transient peaks and bass performance which often exceeds that of rival solid-
state amplifiers. We run high voltages on the plates of the output tubes and are thus able to run them at
lower current which will result in longer life for the output tubes. Each output tube has its own bias
adjust, and the procedure for adjusting each tube's current draw is described in this manual.
GENERAL NOTES
LOCATION & VENTILATION
The Manley Monoblock 100 watt Amplifiers must be installed in a stable location with ample
ventilation. Allow a minimum of 2 inches of clearance on the top and sides of the amplifiers, such that
a constant flow of air can flow. Do not place amplifiers directly on high pile carpet or any other
surface that will block the ventilation vents underneath the amplifiers. If you have small children or
pets, you should consider placing the amplifiers out of reach to prevent damage to the amplifier or
damage to your small children or pets by the amplifier as the tubes do get hot during operation.
WATER & MOISTURE
As with any electrical equipment, these amplifiers should not be used near water or moisture. If liquid
enters the amplifier, it must be immediately returned to your dealer for servicing.
SERVICING
The user should not attempt to service the amplifier beyond that described in the owner's manual.
Refer all servicing other than biasing and tube replacement to Manley Laboratories
SPECIAL NOTES
Tubes may become loose during transit. Straighten and press down each tube before plugging the
amplifier into the mains socket. Furthermore, do not touch the tubes after the amplifier has been
switched on, as the tubes become very hot during operation and should only be handled after the power
has been turned off and the tubes have cooled.
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.
Thank you again, and please enjoy!
