Specifications

–299–
AUDIO
EQUIPMENT
3-1 Wired Microphones
ECM-44 ECM-55 ECM-66 ECM-77 ECM-121
Model Variations Type A Standard type: 3.0 m (3.9 feet) cable terminating in an XLR-3-12C type connector, battery equipped
- Model name 44B 55B 66B 77S, 77B —
- Cable length Type B Pig tail type: 3.0 m (3.9 feet) cable without connector, battery
- Output connector 44BPT 55BPT — 77BPT, 77FPT —
- Battery Type C SMC type: 1.2 m (3.9 feet) cable terminating in a SMC9-4P type connector, without battery
- Finish (B: Black, 44BC 55BC 66BC 77SC, 77BC, 77FC —
S: Silver, F: Beige) Type D BMP type: 1.2 m (3.9 feet)* cable terminating in a 3.5 mm dia. 3-pole mini plug, without battery
44BMP — — 77BMP 121BMP
Capsule Type Electret Condenser Electret Condenser Electret Condenser Electret Condenser Electret Condenser
Frequency Response 40 to 15,000 Hz 30 to 18,000 Hz 70 to 14,000 Hz 40 to 20,000 Hz 100 to 10,000 Hz
Directivity Omni-directional Omni-directional Uni-directional Omni-directional Omni-directional
Sensitivity Type A -53.0 dB ±3 dB -52.0 dB ±2 dB -50.0 dB ±2 dB -52.0 dB ±2 dB —
(0 dB=1 V/Pa, at 1 kHz) Type B, C, D -40 dB (10 mV) -38.5 dB (11.9 mV) -36.5 dB (15 mV) -39.0 dB (11.2 mV) -41 dB (8.9 mV)
Output Impedance Type A 250 Ω ±20% (balanced) 100Ω ±20% (balanced) 100 Ω ±20% (balanced) 150 Ω ±20% (balanced) —
At 1 kHz Type B, C, D — — — — 2.5 kΩ ±30% (unbalanced)
Dynamic Range ≥90 dB ≥98 dB ≥101 dB ≥90 dB —
Signal-to-noise Ratio (A-weighted, 1 kHz, 1 Pa.) ≥62 dB ≥66 dB ≥65 dB ≥64 dB —
Inherent Noise (0 dB SPL=2 x 10
-5
Pa.) ≤32 dB SPL ≤28 dB SPL ≤29 dB SPL ≤30 dB SPL —
Wind Noise (w/wind screen, at 2 m/s) ≤40 dB SPL ≤40 dB SPL ≤50 dB SPL ≤40 dB SPL —
(0 dB SPL=2 x 10
-5
Pa.)
Induction Noise from External Magnetic Field ≤5 dB SPL ≤5 dB SPL ≤5 dB SPL ≤5 dB SPL —
(dB SPL/1 x 10
-7
T)
(0 dB SPL=2 x 10
-5
Pa.)
Maximum Input Sound Pressure Level 122 dB SPL 126 dB SPL 130 dB SPL 120 dB SPL —
(0 dB SPL=2 x 10
-5
Pa.)
Power Battery SUM-3 (NS)(1.5 V) SUM-3 (NS)(1.5 V) SUM-3 (NS)(1.5 V) SUM-3 (NS)(1.5 V)
Supply Battery Life Approx. 5000 H Approx. 5000 H Approx. 300 H Approx. 5000 H
Ext. Power — DC 12 to 48 V DC 24 to 48 V DC 12 to 48 V —
Normal Operating Voltage Type A: DC 1.5 V, Type B, C, D: DC 3 V DC 3 V
(supply range: DC 3 - 10 V) (supply range: DC 3 - 10 V)
Current Drain Less than 0.3 mA Less than 3.5 mA Less than 0.3 mA Less than 0.4 mA
Dimensions Microphone Head
8.5 mm dia. × 14.5 mm 10.6 mm dia. × 21 mm 10.6 mm dia. × 24.2 mm 5.6 mm dia. × 12.5 mm 8.5 mm dia. × 17.0 mm
(
11
⁄32 inch dia. ×
19
⁄32 inch) (
7
⁄16 inch dia. ×
27
⁄32 inch) (
7
⁄16 inch dia. ×
31
⁄32 inch) (
1
⁄4 inch dia. ×
1
⁄2 inch) (
11
⁄32 inch dia. ×
11
⁄16 inch)
Power Unit 20.0 mm dia. × 126 mm 20.0 mm dia. × 133 mm 20.0 mm dia. × 163 mm 20.0 mm dia. × 133 mm —
(
13
⁄ 16 inch dia. × 5 inches) (
13
⁄ 16 inch dia. × 5
1
⁄ 4 inches) (
13
⁄ 16 inch dia. × 6
1
⁄ 2 inches) (
13
⁄ 16 inch dia. × 5
1
⁄ 4 inches)
Mass Microphone Head 2 g (0.07 oz) 6.5 g (0.23 oz) 7 g (0.25 oz) 1.5 g (0.05 oz) 3 g (0.11 oz)
Total 121 g (4.3 oz) 127 g (4.5 oz) 167 g (5.9 oz) 122 g (4.3 oz) —
Supplied Accessories S.H. holder clip (× 1) S.H. holder clip (× 1) S.H. holder clip (× 1) S.H. holder clip (× 1) Holder clip (× 1)
(S: Single type, V: Vertical type, U. wind screen (× 1) S.V. holder clip (× 1) S.V. holder clip (× 1) S.V. holder clip (× 1) U. wind screen (× 1)
M: Metal-mesh type, U: Urethane type)
Microphone case (× 1) M wind screen (× 1) U. wind screen (× 1) M. wind screen (× 1)
Microphone case (× 1) Microphone case (× 1) Microphone case (× 1)
Specifications
ECM-122 ECM-166 ECM-310 ECM-350
Model Variations Type A Standard type: 3.0 m (3.9 feet) cable terminating in an XLR-3-12C type connector, battery equipped
- Model name — — — —
- Cable length Type B Pig tail type: 3.0 m (3.9 feet) cable without connector, battery
- Output connector — — — —
- Battery Type C SMC type: 1.2 m (3.9 feet) cable terminating in a SMC9-4P type connector, without battery
- Finish (B: Black, — 166BC 310BC 350BC
S: Silver, F: Beige) Type D BMP type: 1.2 m (3.9 feet) cable terminating in a 3.5 mm dia. 3-pole mini plug, without battery
122BMP 166BMP 310BMP —
Capsule Type Electret Condenser Electret Condenser Electret Condenser Electret Condenser
Frequency Response 100 to 10,000 Hz 100 to 10,000 Hz 70 to 12,000 Hz 40 to 15,000 Hz
Directivity Omni-directional Uni-directional Wide-cardioid Omni-directional
Sensitivity Type A — — — —
(0 dB=1 V/Pa, at 1 kHz) Type B, C, D -41 dB (8.9 mV) -45 dB (5.6 mV) -44 dB (6.3 mV) ±3 dB -40 dB (10 mV) ±3 dB
Output Impedance Type A — — — —
At 1 kHz Type B, C, D 2.5 kΩ ±30% (unbalanced) 2.5 kΩ ±30% (unbalanced) 800 Ω ±30% (unbalanced) 2.5 kΩ ±30% (unbalanced)
Dynamic Range — ≥96 dB ≥93 dB ≥100 dB
Signal-to-noise Ratio (A-weighted, 1 kHz, 1 Pa.) — ≥60 dB ≥60 dB ≥62 dB
Inherent Noise (0 dB SPL=2 x 10
-5
Pa.) — ≤34 dB SPL ≤34 dB SPL ≤32 dB SPL
Wind Noise (w/wind screen, at 2 m/s) — — ≤63 dB SPL ≤40 dB SPL
(0 dB SPL=2 x 10
-5
Pa.)
Induction Noise from External Magnetic Field — — — —
(dB SPL/1 x 10
-7
T)
(0 dB SPL=2 x 10
-5
Pa.)
Maximum Input Sound Pressure Level — 130 dB SPL 127 dB SPL 132 dB SPL
(0 dB SPL=2 x 10
-5
Pa.)
Power Battery
Supply Battery Life
Ext. Power — — — —
Normal Operating Voltage DC 3 V DC 5 V
(supply range: DC 3 - 10 V) (supply range: DC 3 - 10 V)
Current Drain Less than 0.4 mA Less than 0.32 mA Less than 0.3 mA
Dimensions Microphone Head
8.5 mm dia. × 17.0 mm 12.5 mm dia. × 23.5 mm 10.0 mm dia. × 152 mm 8.5 mm dia. × 15.6 mm
(
11
⁄32 inch dia. ×
11
⁄16 inch) (
1
⁄2 inch dia. ×
15
⁄16 inch) (
13
⁄32 inch dia. ×
5
⁄8 inch) (11/32 inch dia. x 5/8 inch)
Power Unit — — — —
Mass Microphone Head 3 g (0.11 oz) 3.5 g (0.12 oz) — —
Total — — 46 g (17 oz) 44 g (1.6 oz)
Supplied Accessories Holder clip (× 1) Holder clip (× 1) U. wind screen (× 1) U. wind screen (× 1)
(S: Single type, V: Vertical type, U. wind screen (× 1) U. wind screen (× 1)
M: Metal-mesh type, U: Urethane type)
*ECM-121BMP Cable length: 0.2 m (7
7
⁄8 inches)