-10dB PAD
H8B H8C
Low Frequency
Off-Roll
H8B H8C
Converting
polar patterns
H8C
Specifications
Condenser Microphone
Type
P
ressure gradient,
FET preamplifier
Element
CMH8A/CMH8B:
Cardioid (Figure 1)
CMH8C: Cardioid /
/
(Figure 2)
Figure 8
Omnidirectional
Polar pattern
30 to 20,000 Hz (Figure 3)
Frequency response
Sensitivity
(at 1,000 Hz Open Circuit Voltage)
CMH8A/CMH8B:
-34dBV/Pa (20mV/Pa)
CMH8C:
Cardioid: -31dBV/Pa (28mV/Pa)
Figure 8: -35dBV/Pa (17mV/Pa)
Omni.: -35dBV/Pa (17mV/Pa)
1Pa=94dB SPL
200
Ω
Rated impedance
1000
Ω
Minimum load impedance
Equivalent noise level
(A-weighted)
CMH8A/CMH8B: 18dB
CMH8C:
Cardioid: 14dB
Figure 8: 18dB
Omni.: 18dB
Dynamic range
at 1 k
Load
Ω
CMH8A: 114dB
CMH8B/CMH8C: 124dB
48 Vdc phantom power
Power supply
Current consumption
CMH8A/CMH8B: 2.7mA
CMH8C: 4mA
Polarity
3 pin male XLR type
Connector
Finish
Dimensions
Φ
54.0mm(2.13in.) X 209.0mm
(8.23in.) (Figure 4)
Net weight
CMH8A/CMH8B: 550g(19.40oz.)
CMH8C: 565g(19.93oz.)
Description
CMH8A/CMH8B are condenser cardioid microphones with large
diaphragm of 1" in diameter; while CMH8C features convertible polar
patterns of cardioid, figure-of-8 and omni. Their tailored frequency
response make them ideal candidate for the recording of music program.
They are also suitable for general recording, broadcasting, stage
reinforcement, etc.
·
·
·
·
Large-diaphragm capsule of gold-evaporated membrane 1" in
diameter and 3
m in thickness.
Low-noise transformer circuit.
Wide frequency response.
has an extezrnal switch for low-cut filter and -10dB roll-off.
has a dual-membrane capsule with external switches for low-
cut filter and -10dB roll-off. At the back of the body, there is a switch
for converting polar patterns among cardioid, figure-of-8 and omni.
μ
·
·
CMH8A
has built-in low-cut filter.
CMH8B
CMH8C
Features
Max. SPL
(1 k
load)
Ω
CMH8A: 132dB SPL
CMH8B: 142dB SPL
CMH8C:
Cardioid: 138dB SPL
Figure 8: 142dB SPL
Omni.: 142dB SPL
(THD
0.5% 1kHz)
≦
CM
H8C 8B 8A
CMH8C 8B 8A
User Guide
J
U
S
T
P
L
A
Y
I
T
Large-diaphragm
Condenser Microphone
2008, SUPERLUX Inc.
G
O
A
N
G
-
F
A
N
N
C
O
.
,
L
T
D
.
CMH8C
CARDIOID TYPICAL POLAR PATTERN
CMH8C
Omni
TYPICAL POLAR PATTERN
CMH8C
Figure 8
TYPICAL POLAR PATTERN
(Figure 2)
FREQUENCY IN Hz
CM-H8A
TYPICAL FREQUENCY RESPONSE (Figure 3)
CM-H8B
FREQUENCY IN Hz
CMH8A/H8B
TYPICAL POLAR PATTERN
igure 1
(F
)
Pin 2 output positive voltage
(related to pin 3) when diaphragm
receives positive pressure.
(Diaphragm moving inward)
Champagne finish
RELATIVE
RESPONSE
IN
d
B
dB
10
-10
-20
20
50
100
200
500
1000
2000
5000
10000
20000 Hz
0
CM-H8C
FREQUENCY IN Hz
RELATIVE
RESPONSE
IN
d
B
dB
10
-10
-20
20
50
100
200
500
1000
2000
5000
10000
20000 Hz
0
RELATIVE
RESPONSE
IN
d
B
dB
10
-10
-20
20
50
100
200
500
1000
2000
5000
10000
20000 Hz
0
(Figure 4)
