What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





KLH-1 and Analog Bass Computer

 KLH-1
The most dramatic expression of computer control technology
Uncompromising. That's as close as any single word comes to describing the performance of the new KLH-1. It is certainly one of the finest speakers ever made. Its twin computer controlled woofers provide flat bass all the way down to 30 Hz (-3 dB). Like the KLH-2 and KLH-3, it has polypropylene cones for a clear, uncolored mid-range and high end - with remarkable smoothness and clarity - and a control that lets you adjust the response for room placement.

The KLH-1 is our largest computer-controlled model. At 11" x 30-1/2" x 10-1/4", though, it's not much larger than most bookshelf speakers. yet the clarity, the openless, the precise stereo imaging, and, of course, the accurate wellcontrolled bass of the LKH-1 can be compared with loudspeaker systems of any size. And at any price.
Audition the KLH-1 against the toughest competition you can think of. With any type of music you like. You simply won't find anything better.
 The KLH Analog Bass Computer, supplied with the speakers is a separate component which connects to your receiver or amplifier. It continually monitors the bass signal and automatically controls woofer excursion as the needs of the music dictate, to prevent, distortion.
The Analog Bass Computer allowed us to design speakers closer to their theoretical performance than ever before.
What this means is a line of speakers that can reproduce clean tight bass equal to optimally designed acoustic suspension speakers four times their size.

In fact KLH computer controlled speakers will outperform comparably prieced speaakers regardless of size. They, finally obsolete the notion that great sound requires great furniture.
 Analog Bass Computer technology is such a big step forward in speaker design, we could have easily quit right there. But we didn't.
After researching a wide range of speaker cone materials, we chose polupropylene - a material first developed for speaker use by BBC engineers.
The movement of the polypropylene cone more faithfully reflects the electrical signal than either paper or bexterne cones. So it reduces coloration caused by "break-up" - uncontrolled cone movement.
The result is exceptional definition and clarity in the midrange - particularly noticeable on the sounds which are most familiar, such as the human voice, hand clapping, and the subtle ambiance around instruments and singers. Of course, we chose the other elements of our speakers with equal care.
Instead of stamped steel baskets to support the speaker cones ours are precision die cast.
Our magnet, assemblies are massive - bigger than those found on much larger speakers.
We even added an acoustically absorbent foam baffle around our high-range drivers, for smoother response and clear precise stereo imaging.
Finally, we use genuine walnut veneers in our cabinet construction. Because we think a speaker should look as good as it sounds.
Specifications:
Designed for vertical use on stand supplied.
1,25 cu.ft./35 litre floor standing speaker system, with Analog Bass Computer.
Optimally designed equalied sixth-order system.
-3 dB at 30 Hz, 105 dB s.p.l. (system in room)
Sensitivity:  87 dB/1W/1m at 1 kHz
Drivers:
Two new 200 mm KLH woofers with polypropylene cones, cast baskets
New 100 mm KLH mid-range with polypropylene cone.
New 25 mm KLH tweeter.
Acoustically absorbent foam on front baffle reduces high frequency diffraction effects, improves stereo imaging and smoothness of response.
Suggested for use with receivers or amplifiers of 2 x 40W to 2 x 200W
Controls:  Computer in/out; tape monitor, Low frequency position compensation; High frequency , and amplifier overload indicators.
Dimensions:
Speakers :  280 x 775 x 260 mm (11" x 30-1/2" x 10-1/4")
Analog Bass Computer :  60 x 270 x 150 mm ( 2-1/2" x 10-1/2" x 6")
Shipping Weight:  57 kg ( 125 lbs)

Finish: speaker finished in genuine walnut veneer - black removable grille. Speaker stands included

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