Technical data measurement microphones
Calibrateable measuring microphones
| M2340 class 1 certified with self-test | M2230 class 1 certified | |
|---|---|---|
|
Scope of delivery |
MA230 preamplifier + MC230A microphone capsule |
MA220 preamplifier + MC230A microphone capsule |
|
Microphone type |
Omnidirectional, condenser free-field microphone with continuous polarization |
|
|
Classification according to IEC 61672 and ANSI S1.4 |
Class 1 certified |
|
|
Microphone capsule |
½" removable with thread 60UNS2 type WS2F according to IEC 61094-4 |
|
|
Preamplifier type |
MA230 |
MA220 |
|
Self-check |
Yes |
No |
|
Frequency response tolerance typical |
±1 dB @ 5 Hz – 20 Hz |
|
|
Individual frequency response |
Freely available as Excel file: register the microphone on my.nti-audio.com and contact info@nti-audio.com |
|
|
Frequency range |
5 Hz – 20 kHz |
|
|
Intrinsic noise typical |
17 dB(A) |
16 dB(A) |
|
Maximum sound pressure level @ distortion factor 3%, 1 kHz |
138 dBSPL |
137 dBSPL |
|
Sensitivity typical @ 1 kHz |
27.5 dBV/Pa ±2 dB (42 mV/Pa) |
|
|
Temperature coefficient |
< –0.01 dB / °C |
|
|
Temperature range |
–10°C to +50°C (+14°F to +122°F) |
|
|
Influence of air pressure |
0.005 dB / kPa |
|
|
Influence of humidity (non-condensing) |
< ±0.05 dB |
|
|
Humidity |
5% to 90% RH, non-condensing |
|
|
Long-term stability |
> 250 years / dB |
|
|
Power supply |
48 VDC Phantom power |
|
|
Power consumption |
0.76 mA typical |
2.3 mA typical |
|
Electronic data sheet |
NTi Audio ASD according to IEEE P1451.4 V1.0, class 2, Template 27 |
|
|
Output impedance |
100 Ω symmetrical |
|
|
Output connector |
balanced 3-pin XLR |
|
|
Diameter |
20.5 mm (0.8") |
|
|
Length |
154 mm (6.1") |
|
|
Weight |
100 g (3.53 oz) |
|
|
Protection class |
IP51 |
|
|
NTi Audio # |
600 040 230 |
600 040 050 |
Non-calibratable measuring microphones
| M2211 frequency response class 1 | M2215 for high sound levels, frequency response class 1 | M4261 class 2 | |
|---|---|---|---|
|
Includes |
MA220 preamplifier + M2211 microphone capsule |
MA220 preamplifier + M2215 microphone capsule |
M4261 with fixed microphone capsule |
|
Microphone type |
Omnidirectional, condenser free-field microphone with continuous polarization | Electret capsule | |
|
Classification acc. to IEC 61672 and ANSI S1.4 |
Frequency response class 1 |
Class 2 |
|
|
Microphone capsule |
1/2" removable with thread 60UNS2 type WS2F according to IEC 61094-4 |
1/4" fixed mounted |
|
|
Preamplifier type |
MA220 |
– |
|
|
Self-check |
no | no |
no |
|
Frequency response tolerance typical |
±1 dB @ 5 Hz – 20 Hz |
+1/–4.5 dB @ 5 Hz – 20 Hz |
|
|
Individual frequency response |
freely available as MS Excel file: register the microphone on my.nti-audio.com and contact info@nti-audio.com |
||
|
Frequency range |
5 Hz – 20 kHz | ||
|
Sensitivity typical @ 1 kHz |
34 dBV/Pa ±3 dB (20 mV/Pa) |
42 dBV/Pa ±3 dB (8 mV/Pa) |
36 dBV/Pa ±3 dB (16 mV/Pa) |
|
Intrinsic noise typical |
21 dB(A) @ 20 mV/Pa |
25 dB(A) @ 8 mV/Pa |
27 dB(A) @ 16 mV/Pa |
|
Maximum sound pressure level @ distortion factor 3%, 1 kHz |
144 dBSPL |
153 dBSPL |
142 dBSPL |
|
Temperature coefficient |
< ±0.015 dB / °C |
< ±0.02 dB / °C |
|
|
Temperature range |
–10°C to +50°C (14°F to 122°F) |
0°C to +40°C (32°F to 104°F) |
|
|
Influence of air pressure |
0.02 dB / kPa |
0.04 dB / kPa |
|
|
Influence of humidity (non-condensing) |
< ±0.05 dB |
< ±0.4 dB |
|
|
Humidity |
5% to 90% RH, non-condensing | ||
|
Long-term stability |
> 250 years / dB |
- |
|
|
Power supply |
48 VDC Phantom power | ||
|
Power consumption |
2.3 mA typical |
1.7 mA typical |
|
|
Electronic data sheet |
NTi Audio ASD according to IEEE P1451.4 V1.0, class 2, template 27 | ||
|
Output impedance |
100 Ω symmetrical | ||
|
Output connector |
balanced 3-pin XLR | ||
|
Diameter |
20.5 mm (0.8") | ||
|
Length |
150 mm (5.9") |
||
|
Weight |
100 g (3.53 oz) |
83 g (2.93 oz) |
|
|
Protection class |
IP 51 |
||
|
NTi Audio # |
600 040 022 |
600 040 045 |
600 040 070 |
Technical data microphone preamplifier
| MA230 | MA220 | |
|---|---|---|
|
Microphone preamplifier |
Compatible with 1/2" microphone capsules type WS2F according to IEC61094-4 |
|
|
Frequency range |
1.3 Hz – 49.5 kHz |
4 Hz – 100 kHz |
|
Frequency response |
±0.1 dB, 10 Hz – 20 kHz |
±0.2 dB |
|
Phase linearity |
± 5° @ 20 Hz – 20 kHz |
± 5° @ 20 Hz – 20 kHz |
|
Intrinsic noise typical |
2.4 μV(A) @ Cin 15 pF |
1.6 μV(A) @ Cin 18 pF |
|
Maximum output voltage |
22 Vpp ≙ 7.78 Vrms ≙ 139.3 dBSPL @ 42 mV/Pa |
21 Vpp ≙ 7.4 Vrms ≙ 138.9 dBSPL @ 42 mV/Pa |
|
Electronic data sheet |
|
|
|
Self-check |
Yes |
No |
|
Individual frequency response |
freely available as Excel file, register the microphone on my.nti-audio.com and contact info@nti-audio.com |
|
|
Frequency response tolerance typical |
±1 dB @ 5 Hz – 20 Hz |
|
|
Frequency range |
5 Hz – 20 kHz |
|
|
Sensitivity typical |
27.5 dBV/Pa ±2 dB (42 mV/Pa) |
|
|
Temperature coefficient |
< –0,01 dB / °C |
|
|
Temperature range |
–10°C to +50°C (14°F to 122°F) |
|
|
Influence of air pressure |
0.005 dB / kPa |
|
|
Influence of humidity (non-condensing) |
< ±0.05 dB |
|
|
Humidity |
5% to 90% RH, non-condensing |
|
|
Long-term stability |
> 250 years / dB |
|
|
Power supply |
48 VDC Phantom power |
|
|
Power consumption |
0.76 mA typical |
2.3 mA typical |
|
Electronic data sheet |
NTi Audio ASD according to IEEE P1451.4 V1.0, class 2, template 27 |
|
|
Output impedance |
100 Ω symmetrical |
|
|
Output connector |
balanced 3-pin XLR |
|
|
Diameter |
20.5 mm (0.8") |
|
|
Length |
154 mm (6.1") |
|
|
Weight |
100 g (3.53 oz) |
|
|
Protection class |
IP51 |
|
|
NTi Audio # |
600 040 200 |
600 040 050 |