| Specifications | WB98H/C Microphone (with standard test circuit shown in User Guide Figure
1)
 | BETA 98H/C Microphone (with
preamplifier) | 
| Type | Condenser (electret bias) | 
| Polar Pattern | Unidirectional (cardioid) | 
| Frequency
Response | 20 to 20,000 Hz  
 | 
| Output Impedance | 1200 ohms | Rated at 150.0 ohms (actual) Recommended minimum load impedance: 1 kilohm.
 May be used with loads as low as 150 ohms with reduced clipping
level.
 | 
| Output Level (0 dB = 1 volt per Pascal)
 | Open Circuit Voltage: -56.5 dB
(1.5 mV) | Open Circuit Voltage: -56 dB
(1.6 mV) | 
| Output Clipping Level (at 1kHz, THD < 1%)
 | -9 dBV (0.35 V) | 2.5 kilohm load: 11 dBV (3.5
V) 1.0 kilohm load: 3 dBV (1.4 V)
 | 
| Maximum SPL | 143.5 dB | 2.5 kilohm load: 163 dB 1.0
kilohm load: 155 dB | 
| Dynamic Range (maximum SPL to
A-weighted noise level) | 112.5 dB | 132 dB (2.5 kilohm
load) | 
| Signal-to-noise
ratio | 63 dB
at 94 dB SPL (IEC 651) | 
| Polarity | Positive pressure on microphone
diaphragm produces positive voltage on pins 3 and 4 with respect to
pin 1 (ground). | Positive pressure on microphone
diaphragm produces positive voltage on pin 2 relative to pin 3 of
preamplifier output connector. | 
| Recommended Operating
Voltage | 5 V (pin 2 to pins 3 and
4) | 11 to 52 Vdc
Phantom | 
| Environmental
Conditions | Operating
temperatures: -7 degrees C to 49 degrees C (20 degrees F to 120
degrees F) Storage temperatures: 29 degrees C to +74 degrees C (-20 degrees F
to 165 degrees F)
 Relative Humidity: 0 to 95%
 | 
| Net Weight | Microphone w/cable and
mini-connector (TA4F): 65 g (2.3 oz.) | Microphone w/cable and
preamplifier: 156 g (5.5 oz.) |