Bose 601 Series II Speaker
Manufacturer:
Model:
601 Series II
Date:
1996
Category:
Group:
Description:
DIRECT/REFLECTING SPEAKER SYSTEM

Information

SPATIAL CHARACTERISTICS The Bose® 601TM Series II system is a high performance floor-standing Speaker designed to achieve the highest level of spatial realism and spectral accuracy in a non-equalized Direct/ Reflecting® Speaker system. The new 601 Series II Speaker incorporates two new concepts in Speaker technology: The Free Space® array, which allows the drivers to radiate freely in any direction, providing exceptionally Realistic and natural-sounding energy distributing in almost any listening room. The second new concept is the Sub-port Enclosure System, figure 1. Each woofer has its own enclosure that has damping material and a sub-port. The sub-ports are tuned to operate in the frequency range of 200-300Hz, providing principal sound radiation in these frequencies through the sub-port rather than the cone. The sub-ports are coupled to the main port of the Speaker, and with the new extended range woofers, tweeters and crossover network, the 601 II Speaker takes maximum advantage of this new technology. Speaker CONFIGURATION WOOFER: Two new high-efficiency 8" woofers designed for the sub-port enclosure. Each woofer has a long excursion voice coil and suspension, plus a 14 Oz. magnet, providing high output capability. Uniform response of the woofer is over 2.5KHz with use of the Dual FrequencyTM crossover network. One woofer is directed forward while the second woofer is directed upward, which helps create a balance of reflected and direct energy in the listening room. TWEETER: Four 3" wide-range high sensitivity tweeters per enclosure provide flat power radiation beyond 15KHz. The response extends down to 1.5KHz for use with the Dual Fre- quency crossover network. Two tweeters in each Speaker enclosure are directed outward so that most of the sound energy is reflected off the back and side walls. One tweeter is posi- tioned so that the sound energy is directed towards the center of the room and the final tweeter is positioned to reflect sound off the back wall between the speakers and into the room, providing a strong center stereo image by filling the "hole in the middle". DUAL FREQUENCY CROSSOVER NETWORK: Located in the top woofer cup, the crossover network consists of two capacitors, two resistors, and two tweeter protection lamps. The Dual Frequency crossover network is designed to offer performance advantages by deliberately operating both the woofers and tweeters simultaneously over a significant part of the frequency range. We have designed the crossover network to have separate transition frequencies for the woofers and tweeters. By using separate frequencies, an overlap in response of almost one octave is achieved, providing smoother frequency response in the crossover region. Careful design of all Components in the crossover network matches woofer and tweeter re- sponse, eliminating phase cancellation and assuring accurate frequency and transient re- sponse. Enclosure: A sub-port enclosure system for maximum efficiency, minimum cone motion and placement versatility. Cabinet is constructed of walnut grain vinyl laminated to particle board. Note: The early version of the 601 II Speaker has three input terminals. Later versions had two input terminals. Refer to the schematics and crossover part lists in this manual for differ- ences.

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Service Manual
Manual type:
Service Manual
Pages:
11
Size:
71.82 Kbytes (73539 Bytes)
Language:
english
Revision:
3
Manual ID:
118915
Date:
1996 03 01
Quality:
Electronic document, no scan, very well readable.
Upload date:
2016 12 20
MD5:
9d8dc6711760fb1160f018a701bb2841
Downloads:
893

Information

TECHNICAL DESCRIPTION ... 2 Specifications ... 3 Figure 1. 601TM II Ports ... 3 601 II Test Procedures ... 4 Disassembly/Assembly Procedures ... 5 601 II Part List ... 6 Figure 2. Front View ... 6 Figure 3. Top View ... 6 Figure 4. Part 1 (Left) Three Terminal Schematic ... 7 Figure 5. Part 2 (Right) Three Terminal Schematic ... 7 Figure 6. Two Terminal Schematic ... 8

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