Page 1
e 904
Instruction manual
Page 2
Delivery includes
• e 904
• MZH 604 microphone clamp
• pouch
• quick guide
• safety guide
Product overview
1
Delivery includes
2
1. Sound inlet basket
2. XLR-3 connector
3. Microphone clamp
3
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Page 3
Installation
Attaching the microphone
Fasten the holder to the microphone using the screw.
Installation
Connecting the microphone
Connect the XLR-3 socket of the microphone cable (optional accessories) to the XLR-3 socket of
the microphone.
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Page 4
Operation
Positioning the microphone on a drum
Use the microphone clamp to attach the e 904 to the rim of the drum.
Position the microphone on the drum so that it is 3 to 5cm above the drumhead.
30 – 60°
Operation
3 – 5 cm
(1.2 – 2")
It is vital to observe the following notes:
Position Resulting sound Commentary
A More fundamental
Little overtones
B Less fundamental
Many overtones
C Use of a second e 904 for picking up the bottom of
Position on the drum:
3 to 5 cm above the drumskin
The fundamental to overtones ratio can be adjusted by changing the angle of the microphone. The
most balanced results are obtained at an angle of
30 to 60°.
the drumskin and the snares.
NB: The lower microphone must be phase-reversed to avoid phase-cancellation effects due to the
second microphone being on the other side of the
drumskin.
A CB
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Page 5
Cleaning and maintaining the e 904
Positioning the monitor loudspeakers
To prevent feedback and crosstalk, postion your monitor loudspeakers in the angle area of the
highest cancellation of the microphone (approx. 180°).
180°
Cleaning and maintaining the e 904
CAUTION
LIQUIDS CAN DAMAGE THE ELECTRONICS OF THE PRODUCT!
Liquids entering the housing of the product can cause a short-circuit and damage the electronics.
Keep all liquids away from the product.
Do not use any solvents or cleansing agents.
Disconnect the products from the power supply system and remove rechargeable batteries and
batteries before you begin cleaning.
Clean all products only with a soft, dry cloth.
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Page 6
Specifications
Transducer principle dynamic
Frequency response 40 - 18,000 Hz
Pick-up pattern cardioid
Sensitivity (free field, no load) 2.0 mV/Pa
Nominal impedance (at 1 kHz) 350 Ω
Min. terminating impedance 1 kΩ
Connector XLR-3
Dimensions Ø 41 mm, length 63 mm
Weight 125 g
Polar pattern
0°
0°
10
15
20
25
dB
0
5
30°
60°
120°
90°
125 Hz
250 Hz
500 Hz
1,000 Hz
2,000 Hz
4,000 Hz
8,000 Hz
16,000 Hz
30°
60°
90°
120°
Specifications
150°
180°
Frequency response
dBV
-40
-50
-60
-70
-80
-90
50
100
200
0°, 1 m
180°
500
150°
1,000
2,000
5,000
10,000
20,000
Hz
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Page 7
Connector assignment
••
••
••
••
••
••
• •• ••
Overview of applications
e 602 II
+ +
1
2
3
XLR
+
2
1
3
XLR
+
2
1
3
XLR 6.3 mm
XLR
6.3 mm
12
3
+
+
+
UNBALANCED
BALANCED
Overview of applications
Primary application
Secondary application
•••• •
+
12
3
XLR
e 604
e 608
e 609
e 614
e 835
e 845
e 865
e 901
e 902
e 904
e 906
e 908
e 914
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• ••
silver
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e 935
e 945
e 965
• •
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