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Bose Model 601 loudspeakers

A New Direct/Reflecting Speaker of Outstanding performance, High Efficiency, Moderate Cost and Exceptional Versatility
The Model 601 is a totally new Direct/Reflecting loudspeaker fromBose. It employs a unique arrangement of six drivers in each enclosure (four tweeter, two woofers) to achieve a level of tonal accuracy and spatial realism comparable only to the world renownedBose 901 Series III.
These peformance qualities , along with high efficiency, moderate cost, and great versatility of speaker placement in practically any listening environment, make the Model 601 a loudspeaker of exceptional value.
The result is an open, spacious sound and feeling of realism which can not be achieved by conventional speakers with front mounted drivers beaming directly at the listener. Such conventional designs are aimed almost exclusively at producing accurate frequency response, while largely ignoring the spatial qualities so critical to the impact of a live performance. In the Model 601, these important spatial qualities are accurately reproduced through the careful positioning and orientation of all six drivers in each speaker enclosure.

The Concept Behind Bose Direct/Reflecting Speakers
Like the 901 Series III 9the most advanced development of Bose design concepts and state-of-the-art. Manufacturing techniques), the Model 601 is a Direct/Reflecting speaker system . It's designed to reflect the greater part of its sound output off the back and side walls of the room, surrounding the listener with the same kind of balance of reflected and direct sound experienced in a live performance.

The tweeters
Three tweters in each enclosure provide reflected sound, creating a feeling of spaciousness, while one tweeter radiates the smaller proportion of direct sound needed for a strong center image and crisp, sharply defined details.
Two of the tweeters are also positioned to radiate sound upward through the acoustically transparent top grille, thus avoiding interference from furniture in the room.
The Woofers
There are two 8-inch woofers in each Model 601 enclosure, one aimed forward and one angled upward, to contribute an important component of reflected sound. The use of two smaller woofers provides a cone area equal to that of a single much larger driver, while offering importantperformance benefits at low and middle frequencies.
Each high-output woofer is capable of better dispersion and smoother midrange performance than a larger woofer, while they work together to provide bass response of exceptional power and clarity.

Accuracy of Tonal balance
With all four tweeters covering the same upper frequency range and the two woofers covering the same lower range, small response irregularities of individual drivers are averaged and smoothed in a way that can not be duplicated using single drivers.

Efficiency
The Model 601 is also a highly efficient speaker that can deliver superior reproduction of all kinds of music using an amplifier or receiver having as little as 20 watts of power per channel

Technical Information
Spatial Charateristics
Asymetric design for optimum stereo reproduction utilizing rear and side wall reflections. Two woofers, one reflecting, one direct. Four tweeters angled toward the rear walls, side walls, and listening area. Two-Position Symmetry Control; Asymmetric - side directed tweeters receive greater high-frquency excitation than center-directed tweeters; Symmetric - for speaker placement without adjacent reflecting walls, all tweeters are equally excited. Designed in mirror-image pairs for stereo reproduction.
Speaker Configuration
Woofer :  two eight-inch, high-efficiency woofers utilizing long-throw, one-inch voice coils. Linear high-excursion suspension systems providing high output capability
Tweeter :  Four trhee-inch, high-sensitivity, wide-range tweeters
Enclosure :  A walnut veneer floor-standing loudspeaker with ported design and acoustically transparent top
Minimum Recommended Power:  15 watss RMS per channel at 8 Ω
Amplifier rated over 70 watts per channel are unnecessary for "live volume" reproduction.
Amplifiers over 50 watts per channel should be fused
Crossover Frequency:  2 kHz
Impedance:  8 Ω
Dimensions (W x H x D):  15" x 25,5" x 13"
Weight:  36 lbs

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