The development of
the Model Six has served as a valuable source of information for the design and
construction of the Model Seven. Believing that a need exists for a loudspeaker
system of about this size, the disign staff of KLH began the construction of
prototype units using dynamic loudspeakers of various sizes and types. The
system which resulted after a number of different units had been made and
tested is now in production.
The low frequency
section of the Model Seven is a 12-inch acoustic suspension loudspeaker. The
enclosure volume of 2,6 cu. Ft. Permits a very compliant moving system for
extended low frequency response.
The high frequency
section of the Model Seven consists of two small cone-type direct rediators
operating as rigid pistons over a range from 1500 to 20,000 Hz. The use of two
such loudspeakers gives a surprisingly large apparent sound source.
The low and high
frequency sections are united by an LC crossover network, which establishes the
crossover point at 1500 Hz. The relative levels of the low and high frequency
section can be varied ±2,5 dB by means of a switch on the back of the enclosure.
This provision is made to offer some degree of control over different room
acoustics.
Cabinet Size: 24-3/4
x 21-1/2 x 11-7/8 inch (H x W x D)
Volume: 2,6 cu. Ft.
Impedance: 8 ohms
Weight: 52 lbs (shipping)
Finish: mahogany or oil Walnut