Boston Acoustics M340 Speaker User Manual


 
4
Specifications M350 M340 M250 M25
Frequency Range (±3dB):
45Hz – 30kHz 45Hz – 30kHz 60Hz – 30kHz 62Hz – 30kHz
High-Frequency Driver:
1” (2.5cm) 1” (2.5cm) 1” (2.5cm) 1” (2.5cm)
EWB Dome EWB Dome EWB Dome EWB Dome
Mid-Frequency Driver:
4½” (11.4cm) 4½” (11.4cm) 5¼” (13.3cm)
mass loaded mass loaded polypropylene cone
polypropylene cone polypropylene cone
mid/low driver
Low-Frequency Driver(s):
4 x 5¼” (13.3cm) 4 x 4½” (11.4cm) 5¼” (13.3cm) 5¼” (13.3cm)
polypropylene cones polypropylene cones polypropylene cone polypropylene cone
Crossover Frequency:
400/3,000Hz 390/3,100Hz 450/2,900Hz 3,000Hz
Impedance:
Compatible with Compatible with Compatible with Compatible with
8 ohm outputs 8 ohm outputs 8 ohm outputs 8 ohm outputs
Sensitivity: [1 watt (2.83V) at 1m]
90dB 88dB 88dB 86dB
Recommended Amplifier Power
50-500 watts 50-350 watts 50-250 watts 50-200 watts
Dimensions (H x W x D):
42
3
/8 x 9
5
/8 x 12
3
/16” 40
3
/8 x 8
13
/16 x 11
7
/16” 38
7
/16 x 9
5
/8 x 9
13
/16” 12
3
/8 x 6
15
/16 x 10
3
/16
(107.6 x 24.5 x 31cm) (102.6 x 22.4 x 29cm) (97.6 x 24.5 x 25cm) (31.4 x 17.6 x 25.8cm)
Weight:
55.9 lbs (25.4kg) 46.3 lbs (21.0kg) 35.3 lbs (16.0kg) 14.7 lbs (6.7kg)
Specifications MCenter MSurround
MSubwoofer
Frequency Range (±3dB):
68Hz – 22kHz 95Hz – 22kHz 23Hz – 150Hz
High-Frequency Driver:
2½” (6.4cm) 2½” (6.4cm)
BMR flat planel BMR flat planel
Low-Frequency Driver(s):
2 x 4½” (11.4cm) 3½” (8.9cm)
10” (25.4cm) polypropylene cone
polypropylene cones polypropylene cone 2 x 8” (20.3cm) polypropylene
cone passive radiators
Crossover Frequency:
700Hz 700Hz 40Hz - 180Hz (variable)
Impedance:
Compatible with Compatible with
8 ohm outputs 8 ohm outputs
Sensitivity: [1 watt (2.83V) at 1m]
87dB 86dB —
Amplifier Power: 500 watts RMS
(1000 watts Peak)
Recommended Amplifier Power
50-200 watts 50-150 watts
Dimensions (H x W x D):
6
1
/8 x 21
5
/8 x 7
1
/16 9½ x 6
9
/16” x 4
7
/16 13
1
/16 x 16
3
4 x 15
7
16
(15.5 x 55 x 18cm) (24.2 x 16.6 x 11.3cm) (33.1 x 42.5 x 39.2cm)
Weight:
15.9 lbs (7.2kg) 5.5 lbs (2.5kg) 51.8 lbs (23.5kg)
Specifications subject to change without notice.