Radio Shack Compensation Chart
The below shows the correction values for the SPL meter
mentioned earlier in this manual. For any number read
(left column) from this meter, it is necessary to add the
correction value (right column) before plotting actual
results.
Frequency
(Hz)
Gain
(dB)
20
+7.5
25
+5
32
+3
40
+2.5
50
+1.5
63
+1.5
80
+1.5
100
+2
Speaker Specifications
System:
Multi-way, seven-driver direct-radiating system,
vented enclosure with two rear-firing flared ports
Drivers:
Vifa Ring Radiator tweeter, four custom 5.25"
long-throw aluminum cone woofers, one custom 4" alu-
minum cone midrange and one custom 8" sealed side-
firing woofer with built-in 350 watt amplifier for the 8"
woofer only.
Crossover: Tweeter at 6.0KHz, progressive array, vari-
able slope.
Frequency Response: 29Hz—20KHz +/- 3 dB
Impedance: 6 ohms nominal
Sensitivity: 90.5dB (1w/1M)
Size:
51.5" H x 15.6" D (add 1.75" for amp protrusion) x
11.8" W
Other Features:
R-DES digital EQ system
8” woofer is high passed at 28Hz
0-180 phase adjustment, gain, and
crossover adjustments (40Hz-150Hz)
Auto-on / standby mode
