Owner's Manual
MEMPHIS
MB
AUDIO
SINCE
1965
M SERIES
~
•••
I
?//PQ}/,/f!SUBifllD/illSPECS
. . '
Unit
MBB24·2
MB824·4
M81010·2
M81024·4
MB1224·2
MB1224·4
MB1524·2
M81524·4
THIELSE
SMALL
PARAMETERS
1
- _ • • -
- -
Resonant Frequency (fs)
Hz 48 48 36 36
33 33
25
Mechanical Q (Qms)
4.94 5.
41
4.33 4.
31
5.3 5.22 6.
53
Electrical Q (Qes)
0.79 0.7 0.78 0.67
0.83 0.69 0.65
Total Q (Qts)
0.68 0.62 0.66 0.58 0.72 0.
61
0.59
Sensitivity
dB
83.5 84.1 84.6 85.3 86.8 87.5 88.4
Xmax Linear
in
. 0.27 0.27 0.45 0.45 0.45 0.45 0.4
Xmax Mechanical in.
0.75 0.75
1
Displacement
cf
. 0.04 0.04 0.12 0.12 0.16 0.16 0.29
Air volume of suspension (Vas) cf.
0.366 0.353
1.04 1.04
2.39 2.39 6.
51
Moving Mass (Mms)
9
76.43 76.43 127.79 127.79
151
.75
151
.75 255.
71
Suspension Compliance (Cms) mmN 0.144 0.138 0.146 0.146 0.147 0.149 0.156
Effective piston area (Sd) SqCm 227 227 380.13 380.13 572.56 572.56 917
Motor Strength {Bl)
TM
7.65
11
.66
8.77 13.09 8.66 13
11
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-
voici
coit.
s
MAGNE
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DCR ohms
2 4
Voice coil diameter
in.
1.5 1.5
RMS Power
Watts
300 300
Peak Power Watts
600 600
Magnet weight oz
33 33
Magnet diameter
in
. 4.72 4.72
PHYSICAL
DIMENSIONS
. . - . •
__::;;.
. ·
Mounting depth
Cutout Diameter
Frame Outside Diameter
in
.
in
.
in
.
ENCLOSURE
RECOMMENDATIONS
-i;
1
••••
Single sub sealed
cf
.
Dual subs Sealed
cf
.
Single sub vented
cf.
Port dimensions
Tuning frequency Hz
Dual sub vented cf.
Port dimensions
Tuning frequency Hz
~
3.74
7.13
8.31
0.5
1
1
-
3"x3"x16.5"L
40
1.5
3.5"x3.5"x13"L
40
-
3.74
7.13
8.31
- -
0.5
1
1
3"
x3
"x16.5"L
40
1.5
3.5"x3.5"x13"L
40
-
2
2
500
1000
60
5.71
5.14
9.17
10.16
0.75
1.25
1.5
3.5"x3.5"x15"L
38
2.6
5"x5"x19"L
38
3.89
2
500
1000
60
5.
71
5.14
9.17
10.16
0.75
1.25
1.5
3.5"x3.5"x15"L
38
2.6
5"x5"x19"L
38
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1.94
2
500
1000
60
5.71
5.43
11
.06
12.24
1.25
2.25
2.4
4"x4"x19"L
36
4.5
6"
x6
"x16"L
36
3.7
2
500
1000
60
5.
71
5.43
11
.06
12.24
1.25
2.25
2.4
4"x4"x19"L
36
4.5
6"x6"x16"L
36
2
2
500
1000
60
5.
71
6.83
13.98
15.26
2.5
4.5
4
5.5"x5.5"x22"L
33
7.5
7''x7"x1 ?"L
33
25
6.88
0.58
0.54
88.9
0.4
1
0.29
6.51
255.71
0.156
917
16.66
4
2
500
1000
60
5.
71
6.83
13.98
15.26
2.5
4.5
4
5.5"x5.5"x22"L
33
7.5
7"x7"x17"L
33