16
IS Series + SP 12.1P Operating Manual
SP 12.1P Specifications
Transducer
1 x 12-inch (300 mm)
Ferrite woofer
Frequency Response
(–10dB limits)
1
39 Hz – 180 Hz
Sensitivity (ref 2.83V)
1, 2
99 dB
Nominal Impedance 8 Ω
Maximum Continuous SPL, @
a MIV (continuous / peak)
1, 2, 3
120 dB / 128 dB
Maximum Continuous SPL,
calculated from power
handling (continuous /
peak)
1, 2, 3
124 dB / 130 dB
Maximum Input Voltage
(MIV)
1, 2
32 dBV, 31.6 V
(equivalent to 200 W
into rated impedance)
Power Handling 350 W
Input Connectors
2 x NL4 SpeakOn
1 x 4-position Euroblock
Enclosure Material Birch Plywood
Dimensions (HxWxD)
17.8" H x 14.8" W x 18.85" D/
452 mm H x 376 mm W x 479
mm D
Net Weight 39.5 lbs / 18 kg
Recommended amplifiers
Single-channel: nXp 400 or
higher
Bridged: nXp 400 or higher
Pema 4125, 4250, 8125, 8250
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
frequency response of the loudspeaker system
Frequency
Response
(On-Axis)
Impedance
100 1k 10k
110
100
90
80
70
Sound pressure, Level [dB]
20 50 200 500 2k 5k 20k
105
95
85
75
Processed, 110 Hz C rossover
Processed, 150 Hz C rossover
10 100 1k 10k
100
10
Impedance, Amplitude [ohm]
20 50 200 500 2k 5k
200
50
20
5