Manual

INTRODUCTION

THANK YOU!...

for choosing the Manley Stereo Electro-Optical Limiter. This Limiter follows in the tradition of the

vintage LA-2A Leveling Amplifier using a passive electro-optical device to control gain. The

advantage of a passive device is that it eliminates the need to push the music through many transistors

and / or ICs as would be the case in a VCA based Limiter. Also like the LA-2A, the Manley utilizes

a tube line amplifier for make-up gain. This is one of our favorite clean and powerful line drivers.

We achieve true tube "warmth" with fidelity rather than with distortion. Other owners of this unit

love the way they can drastically (10 dB) limit without introducing unmusical harshness. An

important feature is that it is quick and easy to use. Also rare is that it limits in a way that engineers

expect when they patch in a limiter. For critical vocal tracks - this is the one to demand.

Unlike the LA-2A, we use LEDs to illuminate the photo-resistor with a LED rather than

electro-luminescent elements which are often slow and unreliable. We also use a solid state side-

chain to drive the LEDs. The Limiter also features a BYPASS switch that retains the tube section

at unity gain as well as an innovative BALANCE control to "fine tune" the stereo image in LINK

mode. Around Manley Labs we call the unit "The ELOP".

Please take a few moments to read through this manual carefully as it contains information essential

to proper operation of this unit. Thank you again, and please enjoy

GENERAL NOTES

LOCATION & VENTILATION

The Manley Electro-Optical Leveling Amplifier 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 unit such that a constant flow of air can move through the ventilation holes.

WATER & MOISTURE

As with any electrical equipment, this equipment should not be used near water or moisture.

SERVICING

The user should not attempt to service this unit beyond that described in the owner's manual.

Refer all servicing to Manley Laboratories.

WARNING!

TO PREVENT THE RISK OF ELECTRIC SHOCK

DO NOT OPEN THE CABINET

REFER SERVICING TO

QUALIFIED PERSONEL