Introduction, Thank YOU | Manley Labs MONOBLOCK AMPLIFIER specs

INTRODUCTION

THANK YOU!...

for choosing the Manley 250/100 Monoblock Amplifiers. Designed by David Manley, the Manley 250/100 Monoblock Amplifiers use only the best available components, with the shortest and cleanest signal path possible, and with the use of our own in-house CNC machine shop we can provide you with a amplifier that looks as good as it sounds.

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 reservoir 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, and careful use of the 'EVER-WARM' power switching should also greatly increase the life of the output tubes as well as allowing your amplifiers to always be ready for pleasurable listening. Each output tube has its own bias adjust, and the procedure for adjusting each tube's current draw is described in this manual. The output transformer is a revolutionary new design by David Manley which is wound on the Manley Labs factory premesis. Its stellar performance will be obvious upon first listening. The secret is in keeping both phases of the push-pull halves always equal, and in this new output transformer design, David has achieved just that. The output transformer has been factory set for an optimum 5 ohm load which will drive most speakers.

Thank you again, and please enjoy!

GENERAL NOTES

LOCATION & VENTILATION

The Manley 250/100 Monoblock 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.

WARNING! !

TO PREVENT THE RISK OF ELECTRIC SHOCK

DO NOT OPEN THE CABINET

REFER SERVICING TO

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