Screen Channel KCS Three Way S-7801



Acoustic Systems

K.C.S. S-7801 and S- 7802 three-way speaker systems are designed for the screen channel in large cinema theatres; their 47 cm depth makes them especially suitable where there is a space limitation behind the projection screen.

S-7801 (bi-amplified) speaker system has a passive crossover to cut frequencies between mid and high frequencies. Between mid and low frequencies, this system is designed to operate with an external active crossover with cut frequency at 400 Hz.

S-7802 (tri-ampflied) system is designed to operate with an external active crossover to cut frequencies both between the low and mid ranges (400 Hz) and betweenthe mid and ranges (1.7 kHz).

The high dynamics demanded to screen channel speaker systems by current soundtracks requires the use of three-way systems in order to ensure high SPL levels in the auditorium while keeping distortion at inaudible levels.

Each of the three ways is controlled by transducers which are specifically designed to operate in the required frequency range and ensure a precise and disortion-free reproduction.

This system features a bass cabinet with direct radiation technology fitted with two 15" Ø speakers.

Voice spectrum in this three-way design is reproduced by two 6,5" cone speakers and 90 x 30 constant dispersion horns, improving intelligibility of dialogues as compared to conventional two-way speaker systems. It is high frequency section membrane and constant directivity horn.




Cabinet C-215 P
Low Frequency driver 2 x S-15 P
Passive Network F-7801 included
Mid Frequency Driver 2 x S-6
Mid Frequency Horn BM-942 B
High Frequency Driver S-701
High Frequency Horn BC-94
Fixed Mount SP-3F
Adjustable mount SP-7800



Frequency Range (-10 dB) :

30 Hz - 20 kHz

Nominal Impedance:

LF 4 Ohms

MF/HF 4 Ohms

Imput Power Raiting (1):

LF 800 W

MF/HF 240 W

Sensitivity 1W/1m:

LF 101 dB S.P.L

MF/HF 110 dB S.P.L

Crossover Frequency:

LF/MF 400 Hz

(active not included)

MF/HF 1.7 kHz

(passive included)

Horizontal Beamwidth:


Vertical Beamwidth: 30°
Dimensions (H x W x D): 199 x 63 x 47 cm
Net Weight: 73,8 kg

KCS-SC-3way-S7801 schema












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