
Electro-Voice | ND66
ND66
▪ Premium small diaphragm condenser element
▪ Clean, crisp, and detailed condenser sound
▪ Easy mic placement with locking rotating head
▪ Selectable -10dB and -20dB pads
▪ Selectable 75Hz and 150Hz high pass filters
The Electro-Voice ND66 is a robust, high-performance
small diaphragm condenser instrument microphone.
The ND66 contains a self-biased small diaphragm
condenser element which is vividly responsive to the
complex dynamic nature of percussive and stringed
instruments, delivering a clean, crisp and detailed
sound.
With the ND66 exclusive locking rotating head, achieve
ideal mic placement in virtually any situation by merely
pushing a button, rotating the head into position, then
releasing the button to lock the head's position.
ND66 contains selectable -10 and -20dB pads which
provide the necessary gain reduction to prevent the
mic element from overloading when micing very loud
or high-transient sound sources.
ND66 contains selectable high pass filters which are
strategically chosen at 75Hz and 150Hz to eliminate
bothersome low frequencies from the signal path.
Technical specifications
Element Type: Self-biased Condenser
Frequency Response, Free
Field:
Polar Pattern: Cardioid
50Hz to 20kHz
Self Noise: 20 dB SPL “A” weighted (0dB=20
micropascals)
Dynamic Range: 126 dB
Signal-to-Noise Ratio: 74 dB (@ 94 dB SPL)
Polarity: Pin 2 positive, reference to pin 3 with
positive pressure on diaphragm
Power Requirements: Phantom Supply Requirement: 48
VDC
Impedance: 200 ohms
Microphone Connector: 3-pin, XLR-type
Finish: Black polyurethane paint
Material: Zinc die cast
Dimensions, Length:
Diameter:
Net Weight: 6.30 oz (179 g)
Shipping Weight: 16.4 oz (465 g)
Accessories Included: (1) Gig bag, (1) stand clip, and (1)
5.63 in (143 mm)
0.83 in (21 mm)
Euro thread adapter
Sensitivity, Open Circuit
Voltage @ 1 kHz::
Maximum SPL: 146 dB SPL, 0dB Pad
10 mV / Pascal

-10
20 50
0 dB
+10
500
FREQUENCY IN HERTZ
100 1K 5K 10K 20K
1 m
2.5 cm
5 cm
-10
20 50
0 dB
+10
500
FREQUENCY IN HERTZ
100 1K 5K 10K 20K
HP 75 Hz
HP 150 Hz
Flat
143mm
5.63 in
[ 21mm ]
.83 in
ND66
-20
-10
0
Unlock
Button
| ND66
2
Frequency Response:
Frequency Response, Close
Frequency Response, Hi-Pass
Dimensions:
Polar Response:
System overview
Using the rotating head
The ND66 head will rotate up to 90° with seven
positive locking positions within its rotation range.
Caution!
Attempting to rotate the head while the un-
locking button is not pushed may result in
damage to the microphone.
To rotate the head, do the following:
1. Push and hold the unlocking button to unlock the
head.
2. While holding the unlock button down, rotate the
head to the desired position.
3. Release the unlock button and gently rotate the head
to the nearest positive locking position.
The lock should click into place.
Using the pads
The ND66 head contains selectable attenuators (pads)
which affect the output level of the microphone
capsule feeding the mic’s built-in preamp. The proper
setting will help prevent overloading the built-in
preamp when micing very loud or high-transient sound
sources.

-20
-10
0
Pad
0, -10dB,
-20dB
3 | ND66
The center position (marked 0) applies zero
attenuation before the mic’s preamp.
The left-hand position (marked -10) applies
10dB of attenuation before the mic’s built-in
preamp.
The right-hand position (market -20) applies
20dB of attenuation before the mic’s built-in
preamp.
Using the hi-pass filters
The ND66 contains a 3-position sliding switch whose
selected position will engage high-pass filter settings.
Adjusting the filter setting requires a small flat head
screwdriver (or some other means of sliding the
switch) using the switch’s slot as a leverage point.
With the slot in the sliding switch in the
center position (as shown), the filter is flat
and there is no roll-off applied.
Sliding the slot upwards revealing 75 (as
shown) engages a 12 dB per octave roll-off
at 75 Hz.
SAND-1
Stand adapter, black
Order number SAND-1
WSND-1
Replacement foam windscreen for ND66, black
Order number WSND-1
ND66RING
Replacement transition ring between head and body,
silver
Order number ND66RING
Accessories
DRC-2
Drum rim clamp, black
Order number DRC-2
Sliding the slot downwards revealing 150 (as
shown) engages a 12 dB per octave roll-off
at 150 Hz.
Parts included
Qty. Item
1 Microphone
1 WSND-1 foam windscreen
1 Gig bag
1 Stand clip
1 Euro thread adapter
1 Engineering data sheet
1 Warranty and Product Documentation Information card
Ordering information
ND66
Condenser cardioid instrument microphone, black
Order number ND66

4 | ND66
Represented by:
Germany:
Bosch Sicherheitssysteme GmbH
Robert-Bosch-Ring 5
85630 Grasbrunn
Germany
Bosch Security Systems, Inc.
12000 Portland Avenue South
Burnsville MN 55337
USA
www.electrovoice.com
© Bosch Security Systems 2016 | Data subject to change without notice
Document Number F.01U.319.494 | Vs2 | 23. Mar 2016