Panasonic Ramsa WS-SP2A - System Architecture and Performance; WS-SP2 A Signal Flow Diagram; WS-A240 Performance Characteristics

WS-SP2A BLOCK DIAGRAM
High Pass
Function ^ e Wo Processor
Selector
30
à Zz
Input À M VLF
o
Output A
© + 4 dB
6000 UNBAL
+4 dB K Low Pass
20 kR BAL E Processor Processor
Function "77-—
Selector VLF Output
TE «4 dB
, PENANG 6002 UNBAL
Pin Connection :
Pin 1 - Gnd :
Pin 2 - Hot : 1 3
i
F
Function
H
Pin 3 - Cold & lector 2 8 v.
[«LET] A + B Output
* 4 dB
6000 UNBAL
High Pass
Function 1 Vo Processor
Setector a y
1 (Bi fasanansan Output 8
= 6062 UNBAL
input 8
* 4 dB
20 kf BAL
TYPICAL SYSTEM PERFORMANCE
The WS-SP2A performs both bandpass definition and sig-
nal processing within the bandpass. The frequency
response chart at left shows typical performance of one
WS-A240 under half-space conditions using the WS-SP2A
Subwoofer Processor adjusted for signal processing mode
three. The input signal was adjusted for a nominal 2.83
volts (1 watt at 8 ohms) at 80 Hz.
100
90
The WS-A240 voice coil was specifically designed to han-
dle high current at low frequencies, resulting in a thermal
power capacity of 400 watts (EIA RS-426-A). The mechan-
ical suspension components have been carefully selected
and balanced to enable an unusually large (12 mm) peak dis-
placement capability. The result is an extremely compact
subwoofer system of exceptional performance.
80
d8
Multiple WS-A240s may be combined in very compact ar-
rays served by a single WS-SP2A Subwoofer Processor,
with an accompanying increase in efficiency and exten-
sion of low frequency output due to mutual radiation ef-
fects (see Typical Applications).
70
60
Frequency (Hz)