Owner's Manual

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Introduction and Performance Features

Performance Features

• Patented LD/HP

Technolog y

The McIntosh Low Frequency Loudspeaker Elements

feature the patented LD/HP Magnetic Circuit Design.

This design, when compared to conventional Loud-

speaker Drivers, reduces distortion significantly. It

also increases power handling and efficiency.

The rear vent through the magnetic assembly offers

improved heat dissipation. The die cast basket has an

open air area under the voice coil/spider assembly to

prevent displacement noise. The polypropylene cone

with a rubber surround has a four layer copper voice

coil and is rigid to perform as a near perfect air piston.

Altogether these advances in woofer design con-

struction and materials produce the very important

first several octaves of music, with a high degree of

accuracy and superb transient response. This per-

formance level rivals woofers twice the size of the

LCR80 woofer.

• Neodymium-Iron-Boron Alloy Magnets

The two inch Midrange Drivers and the three-quarter

inch Dome Super Tweeter all use this Alloy. The

Neodymium-Iron-Boron Alloy has the highest flux

density per unit of volume. This allows for a smaller

physical size driver and thus closer driver to driver

placement for improved dispersion.

• Low Harmonic and Intermodulation Distortion

The LCR80 Loudspeaker System is capable of repro-

ducing the full dynamic range of a symphony orches-

tra with very low audible distortion of any kind.

• High Power Handling

The Loudspeaker Elements and Crossover Compo-

nents of the LCR80 are all chosen for use with ampli-

fiers up to 300 watts, yet can be driven with a 75 watt

amplifier.

• Superior Imaging

Locating the Super Tweeter between the multiple Mid-

range drivers generates a symmetrical polar response

for superior imaging.

• Versatile Operation and Placement

The LCR80 Loudspeaker System is designed for use

in a multichannel system including the Front Channels

(Left, Center and Right) or Surround Channels (Side

and Back).

• Rotatable Dispersion Pattern

The patented Rotatable Dispersion Pattern Baffle

Board

assures the same wide dispersion and excellent

sonic imaging whether the LCR80 is positioned Verti-

cally or Horizontally.

• Loudspeaker Protection

The LCR80’s built-in speaker protection incorporates

three automatic resetting solid-state devices in the

crossover network. One protects the tweeter, one for

the midrange drivers and one for the woofers.

• Rear Stabilizer and Wall Mounting Brackets

The two Rear Stabilizers allow changing the vertical

angle of ± 11 degrees. The On-Wall Mounting Brack-

ets supplied with the LCR80 are for vertical or hori-

zontal mounting. They allow for angled mounting of

±30 degrees.

• McIntosh Custom Binding Posts

McIntosh patented gold plated output terminals

de-

liver high current output. They accept large diameter

wire and spade lugs. Banana plugs may also be used.

• Loudspeaker Enclosure

The LCR80 Loudspeaker enclosure is constructed

with non-parallel internal sides to reduce internal

standing waves. The LCR80 is available in various

real wood veneers with a high gloss polyester finish.

Rotatable Dispersion Pattern Baffle Board Pat. No 5,751,821

Gold Plated Output Terminal Pat. No D649,121