McIntosh Loudspeakers are designed to meet the demands of digital recording. The freedom from the distraction of background hiss, noise, clicks and the purity of the loudest crescendos on the compact disc focuses attention to the pure acoustical events in music. When listening to a compact disc, the slightest non-musical imperfections stand out. Now, truly, the burden of balance, accuracy and clarity rests almost entirely on the loudspeaker. From the softest whisper to the loudest passage, the sound field must be extremely accurate. These Loudspeakers have been designed to meet this need. The systems take up very little floor space and are attractively styled.
-----XR 240 Walnut
-----Crossover network for the XR 240
The sound field is smooth, not only in front of the system, but also as it radiates both horizontally and vertically. This, and the proper arrival time, enables a stereo pair to track the original sound field created by the music producing artist with all the depth, spaciousness and imaging of the original.
Even some older stereo recordings can reveal a spaciousness and clarity not heard before on lesser loudspeakers. The sound stage of these speaker pairs is simply unsurpassed for accuracy. Performance like this did not develop by accident. Years of painstaking measuring and listening, the ultimate form of measuring, combine to produce these design results.
In each driver design, there are many variables that the loudspeaker scientist must satisfy. The size, mass, stiffness and shape of the radiation surface as well as the suspension linearity and magnetic field flux must all be optimized to work together.
It is the correct combination of these and many other factors that give drivers the lowest possible intermodulation distortion. Absence of intermodulation translates directly into clarity. Without this foundation, the correct reproduced musical information that achieves unparalleled ease of listening would not be possible. The absence of "loudspeaker sound" frees you from the distraction of a "loudspeaker presence" and takes you right through to the recorded musical origin.
The McIntosh XR 240 and XR 230 Two New Speaker Designs
The XR 240 and XR 230 are three-way systems that have excellent dispersion. Each has a high power handling woofer, (ten inch in the XR 230, twelve inch in the XR 240), a carefully matched midrange driver and a one-inch tweeter. A complex and extensive crossover accurately blends the drivers together.
Each driver is designed to work best in its frequency range. At low frequencies a woofer with large cone area and long linear excursion is required. The cone must remain rigid and not "break up" into independent modes of vibration. The mass of the moving parts must be as low as possible, yet constructed in a way that will not allow these independent vibration modes to appear. The magnetic gap must supply the required force at 20Hz, the lowest operating frequency. The upper woofer's limiting frequency is where the woofer's radiation becomes directional.
Above the woofer's operating range, the dividing network transfers the driving power from the amplifier to the 5-inch midrange. The smaller diameter and lower moving mass allow this driver to move effectively without breakup.
Above the midrange the crossover network again transfers the energy; this time to the 1-inch dome tweeter. Its very small relative diameter and extremely small moving mass permits it to efficiently radiate high frequencies up to 20,000Hz.
---XR 230 Walnut
---Crossover network for the XR 230
----Oak / Walnut / Black
The three loudspeakers, woofer, midrange and tweeter are all connected by the crossover network. The McIntosh crossover network has these additional tasks to perform: smooth the response in the active pass band of sound for each speaker, minimize the interference between speakers, and present a uniform sound arrival time to the listener. A loudspeaker that can deliver ideal depth, spaciousness and three-dimensional sound space requires a crossover network that is very exacting and meticulous. These measurements are possible only in a FULL SIZE ANECHOIC CHAMBER to assure the exactness of the circuit and component selection. McIntosh Laboratory, in its own acoustical research laboratory, built a chamber in 1979. The cabinets for the XR 240 and XR 230 are constructed of veneer covered, high density (45 pounds per cubic foot) non-resonant particle board. The exterior is available in three different veneers: walnut, oak, or black lacquered ash.
The wood finishes are of an exceptional quality that creates an outstanding blend of sheen, color and depth of grain.
BRUTE FORCE POWER-- The NEW McINTOSH MC 2600
600 Watts Per Channel of Pure Power
A New Amplifier Designed For A New Age of Home Entertainment and Commercial Sound.
The NEW MR 7083 AM/FM TUNER
The McIntosh MR 7083 is a high quality IR remote control AM/FM Tuner whose design has been governed by insistence on high performance with long life, great flexibility and sensitivity.
McIntosh has earned world renown for its technological contributions for improved sound. When you buy McIntosh, you buy not only high technology, you buy technological integrity proven by time. The McIntosh MR 7083 Tuner is continuing evidence of McIntosh technological superiority and integrity.
The McIntosh MR 7083, above all others, will deliver the best sound and the greatest ease of use with a high degree of flexibility.
Some of the features that set the MR 7083 apart from the ordinary are: The advanced AM/FM tuner design of the MR 7083 displays the station frequencies digitally. Stations are selected easily in any one of these ways: the manual tuning knob, the SCAN up or down touch-buttons, the preset station touch-buttons or, SEARCH which will preview the preset stations for 5 seconds each.
The sound enhancing SPATIAL audio processor provides an aural picture that is more "stereo like" in quality and dimension. On noisy, weak FM stations or AM stations, SPATIAL provides reduced noise and retains a broad stereo like sound.
The most useful and flexible AM antenna system will suit your particular installation. A low-impedance loopstick will, in most local areas, provide AM signals while rejecting noise and interference. In noisy AM locations, an external noise reducing, noise canceling, shielded loop will provide an ideal input signal. In a remote location, a conventional long wire' antenna can be used.
Music reproducing instruments that carry the McIntosh name have always been designed for technological leadership and to maintain the McIntosh reputation for durability, long life, and best sound. McIntosh has had to earn the foremost reputation for quality performance. McIntosh has provided user-oriented facilities and appearance, and McIntosh design provides for ease of maintenance or repair.
These fundamental elements are incorporated in the McIntosh MR 7083 AM/FM Tuner, the easiest to operate yet with extensive useful features.
For information on McIntosh products and product reviews, please send your name, address and phone number to:
McIntosh Laboratory Inc.
Department A990 PO Box 96 East Side Station Binghamton. NY 13904-0096
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(Source: Audio magazine, Sept. 1988)
Also see:
McIntosh -- Sounds Better (ad, Nov. 1988)
McIntosh -- The Leader in Stereo Technology (ad, Nov. 1990)
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