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SPECiFiCaTionS
MS-10SD2
MS-10SD4
MS-12SD2
MS-12SD4
MS-15SD2
Nominal diameter:
10 in (254mm)
10 in (254mm)
12 in (305mm)
12 in (305mm)
15 in (381mm)
Nominal impedance:
2+2 ohms
4+4 ohms
2+2 ohms
4+4 ohms
2+2 ohms
Minimum impedance @ 105Hz:
4.5 ohms
9 ohms
4.4 ohms
8.7 ohms
4.2 ohms
Power handling
Peak:
Continuous music
1
:
NBR
2
:
AES
3
:
1,200W
600W
300W
250W
1,200W
600W
300W
250W
1,800W
900W
450W
350W
1,800W
900W
450W
350W
1,800W
900W
450W
350W
Sensitivity (1W @ 1m):
87dB SPL
87dB SPL
87dB SPL
87dB SPL
87dB SPL
Power compression @ 0dB (nom. power):
3.8dB
3.8dB
4.5dB
5.0dB
3.6dB
Power compression @ –3dB (nom. power)/2:
2.8dB
2.8dB
2.5dB
3.3dB
2.3dB
Power compression @ –10dB (nom. power)/10:
2.7dB
2.7dB
0.5dB
1.8dB
1.0dB
Frequency response @ –10dB:
40Hz – 400Hz
40Hz – 400Hz
30Hz – 400Hz
30Hz – 400Hz
30Hz – 1kHz
ThiELE-SMaLL ParaMETErS
Fs:
34Hz
34Hz
35Hz
37Hz
29Hz
Vas:
1.30 ft
3
(37L)
1.38 ft
3
(39L)
1.73 ft
3
(49L)
1.66 ft
3
(47L)
4.58 ft
3
(130L)
Qts:
0.39
0.48
0.73
0.86
0.82
Qes:
0.40
0.49
0.78
0.93
0.87
Qms:
16.49
18.56
10.08
10.45
13.25
Ho (half space):
0.35%
0.30%
0.27%
0.27%
0.36%
Sd:
51.16 in
2
(0.03301m
2
) 51.16 in
2
(0.03301m
2
) 78.59 in
2
(0.0507m
2
)
78.59 in
2
(0.0507m
2
)
128.52 in
2
(0.083m
2
)
Vd (Sd x X
max
):
12.08 in
3
(198cm
3
)
12.08 in
3
(198cm
3
)
20.08 in
3
(329cm
3
)
21.6 in
3
(354cm
3
)
32.88 in
3
(539cm
3
)
X
max
(max. excursion (peak) with 10% distortion):
0.23 in (6mm)
0.23 in (6mm)
0.25 in (6.5mm)
0.27 in (7mm)
0.25 in (6.5mm)
X
lim
(max. excursion (peak) before physical damage):
0.77 in (19.5mm)
0.77 in (19.5mm)
1.15 in (29.3mm)
1.15 in (29.3mm)
1.15 in (29.3mm)
Atmospheric conditions at TS parameter measurements
Temperature:
Atmospheric pressure:
Humidity:
77ºF (25ºC)
1.047mb
51%
77ºF (25ºC)
1.047mb
51%
77ºF (25ºC)
1.047mb
51%
77ºF (25ºC)
1.047mb
51%
77ºF (25ºC)
1.047mb
51%
–
1
Power handling specifications refer to normal speech and/or music program material, reproduced by an amplifier producing no more than 5% distortion.
Power is calculated as true RMS voltage squared divided by the nominal impedance of the loudspeaker.
–
2
NBR Standard (10,303 Brazilian Standard).
–
3
AES Standard (60Hz – 600Hz).
– Thiele-Small parameters are measured after a two-hour power test using half AES power. A variation of ±17% is allowed.
