Owner`s manual

INTRODUCTION

THANK YOU!...

for choosing the Manley Neo-Classsic 250/100 Monoblock Amplifiers. 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 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 in

resistance, inductance capacitance, and in this new output transformer design that goal is met. The output

transformer has been factory set for an optimum 5 ohm load which the optimum compromise to drive most

speakers.. Thank you again, and please enjoy!

GENERAL NOTES

LOCATION & VENTILATION

The Manley Neo-Classic 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

QUALIFIED PERSONEL