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IS Series + SP Series Operating Manual
SP 8.1P Specifications
Specifications
1 x 8-inch (200 mm)
1 x 12-inch (300 mm)
Transducer
Ferrite woofer
Ferrite woofer
Frequency Response
43 Hz – 180 Hz
39 Hz – 180 Hz
(–10dB limits)
1
Sensitivity (ref 2.83V)
95 dB
1, 2
99 dB
Nominal
8 Ω
8 Ω
Impedance
Maximum Continuous
SPL, @ MIV (continuous /
110 dB / 116 dB
120 dB / 128 dB
peak)
1, 2, 3
Maximum Continuous
SPL, calculated from
116 dB / 122 dB
124 dB / 130 dB
power handling
(continuous / peak)
1, 2, 3
32 dBV, 31.6 V
Maximum Input Voltage
30 dBV, 24 V (eq to 100 W ...)
(equivalent to 200 W
(MIV)
1, 2
into rated impedance)
Power Handling
150 W
350 W
2 x NL4 SpeakOn®
2 x NL4 SpeakOn®
Input Connectors
1 x 4-position Euroblock
1 x 4-position Euroblock
Enclosure Material
Birch Plywood
Birch Plywood
13.25" H x 12" W x 15.63" D/
17.8" H x 14.8" W x 18.85"D/ 452mm H x 376mm
Dimensions (HxWxD)
336.55 mm H x 304.8 mm W
W x 479mm D
x 397
Net Weight
25.9 lbs / 13.38 kg
39.5 lbs / 18 kg
mXa-1502
nXp-1502
Single-channel: nXp 400 or higher
Recommended
FA-125.2/4 (power-sharing)
Bridged: nXp 400 or higher
amplifiers
FA-250.4 (single -channel)
Pema 4125, 4250, 8125, 8250
Pema 4125/8125 (bridged)
nep/pema 4250/8250
CA-502/4
1) With recommended processing (see previous page)
2) Referenced to 1 m
3) The maximum input voltage (MIV) is determined by no more than
a 3 dB change in the response of the loudspeaker system
Frequency
Response
SP 8.1P
SP 12.1P
(On-Axis)
Impedance
FPO
110
105
100
95
90
85
80
75
70
20
50
100
200
Frequency [Hz]
No Processing
Processed, 110 Hz C rossover
FPO
200
100
50
20
10
5
10
20
50
100
200
Frequency [Hz]
Impedance
500
1k
2k
5k
10k
Processed, 150 Hz C rossover
500
1k
2k
5k
16
20k
10k
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