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Performance Features
• Woofers with Patented LD/HP
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.
All together these advances in woofer design
construction 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
XR100 woofer.
• Neodymium-Iron-Boron Alloy Magnets
The 10 two inch Midrange Drivers and the three-quar-
ter 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.
• Dual Midrange Crossover Points
There are several benefits when using multiple Mid-
range drivers. First, there is a substantial increase
in power handling capacity far greater than a single
larger diameter midrange driver.
Second, due to mutual acoustic coupling there is an
increase in output volume while at the same time a re-
duction in audible distortion. Eight of the 10 Midrange
Drivers reproduce the lower two octaves of midrange
Technology
frequencies. The remaining two Midrange Drivers
®
reproduce the upper two octaves of midrange frequen-
cies and are located directly adjacent to the tweeter.
This maintains wide dispersion with a stable sound
image throughout the upper midrange frequencies.
• Low Harmonic and Intermodulation Distortion
The XR100 Loudspeaker System is capable of repro-
ducing the full dynamic range of a symphony orches-
tra with very low audible distortion of any kind.
• Low Frequency Port
The XR100 Loudspeaker System utilizes a verti-
cal port with a rear opening to increase bass output,
reduce distortion and improve the overall efficiency of
the Loudspeaker.
• High Power Handling
The Loudspeaker Elements and Crossover Compo-
nents of the XR100 are all chosen for use with ampli-
fiers up to 600 watts, yet can be driven with a 75 watt
amplifier.
• Loudspeaker Protection
The XR100's built-in speaker protection incorporates
four automatic resetting solid-state devices in the
crossover network. One protects the tweeters, one
each for the low and upper midrange drivers and one
for the woofers.
• Superior Imaging
Locating the Super Tweeter between the multiple
Midrange drivers generates a symmetrical polar re-
sponse for superior imaging. The Midrange and Super
Tweeter Drivers are precisely aligned on the precision
machined mounting plate of 5/8 inch thick aluminium
with a Brushed Champagne Gold Finish.
Connector/Cable Information, Introduction and Performance Features
• Versatile Operation
In additional to the regular connections, the XR100
Loudspeaker System provides separate connections
for Bi-Amplification and Bi-Wiring hookups.
• McIntosh Custom Binding Posts
McIntosh Patent Gold Plated Output Terminals deliver
high current output. They accept large diameter wire
and spade lugs. Banana plugs may also be used.
• Power Control
The Power Control Input supplies power to illuminate
the XR100 McIntosh Logo and Power Control Out-
put supplies power for remote turn-on of additional
Components.
• Loudspeaker Enclosure
The XR100 Loudspeaker enclosure is constructed
with non-parallel internal sides to reduce internal
standing waves. It has multiple front to back and side
to side internal braces to form a dampened rigid Loud-
speaker enclosure. The XR100 is available in various
real wood veneers with a high gloss polyester finish.
• Loudspeaker Grille
The custom designed molded Loudspeaker Front
Grille exhibits nearly perfect Acoustic Transparency
and is secured to the Loudspeaker Enclosure using
Neodymium Magnets.
• Solid State Front Panel Logo Illumination
The even Illumination of the Front Panel Logo is ac-
complished by the combination of custom designed
Light Diffusers and extra long life Light Emitting
Diodes (LEDs).
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