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Microphones
UMT70S_nm_kl

UMT 70 S

Condenser Microphone
switchable

  • polar patterns omni, cardioid, figure 8
  • switchable attenuator
  • legendary M7 capsule
  • transformerless output


The UMT 70 S condenser microphone equipped with our proven large diameter membrane capsule features outstanding performance, a high sensitivity and a improved signal-to-noise ratio. The UMT 70 S guarantees a particularly clean and colourIess sound reproduction. lt is well suited for instrumental and vocal soloists in radio and television broadcasting and for accurate productions.

The pressure gradient transducer is a dual capacitor design using a single brass back plate and two large diameter gold plated plastic membranes.

Varying the polarization voltage applied to the membranes produces three directional characteristics: omni, cardioid and figure 8. A ring at the bottom of the microphone's head grill selects the pattern. The omni-directional pattern shows a slight 2 dB rise in the vicinity of 10,5 kHz while the bass response is perfectly flat. The cardioid and figure 8 patterns exhibit a smooth treble boost rising which peaks at about 4dB in the range of 7 kHz. This response coupled with a slight roll-off at low frequencies, is responsible for the legendary "presence" of this microphone.

The direction of maximum sensitivity is radial to the grill, i.e. side addressed.

The newly developed transformerless circuit design substitutes the previous transformer by a symmetrical output stage yielding superb transient response combined with high RFI rejection. The circuitry also achieves wider dynamic range by lowering. The self noise floor and increasing the headroom for loud signals. A 10 dB attenuator is installed to reduce the sensitivity of the microphone when placed near extremely loud sound sources. And, a low frequency roll-off switch will reduce the proximity effect when dose miking with the cardioid or figure 8 patterns.

The microphone is equipped with a 3-pin XLR connector fitting to a microphone cable, e.g. C 70.
The UMT 7O S uses 48 volt phantom powering according to the international standards DIN 45596 and IEC 268-15.

lt s available in a black matte or satin nickel finish.

 

Transformerless Condenser Microphone
UMT 70 S
Polar patterns
omni, cardioid, figure 8
Acoustical operating principle
Pressure gradient transducer
Frequency range
40 ... 18000 Hz
Switch position "reduced bass roll-off" at 90 Hz
- 10 dB ± 1 dB
Sensitivity at 1 kHz
7/13/8 mV/Pa ± 3 dB
Rated impedance
150  Ω
Equivalent loudness level
due to inherent noise
CCIR 468-4
22 dB
DIN EN 60651
14 dB - A
Signal-to-noise-ratio
(re. 1 Pa at 1 kHz)
CCIR-weighted
72 dB
A-weighted
80 dB
Max. SPL for THD ≤ 0,5 %
139/134/139 dB
with 10 dB preattenuation
149/144/149 dB
Total dynamic range of the microphone amplifier
120 dB
Current consumption (P 48, DIN 45596, IEC 268-15)
3 mA
Output connector
3-pin XLR-connector goldplated contacts
Weight
290 g
Dimensions (L x Ø)
217 mm x 42/21 mm

 

 

Frequency Responses

freq_1freq_2freq_3

 

Polar Patterns

pol_1_k

pol_2_k

pol_3_k

 

Microphone UMT 70 S in a wooden case
L x B x H   275 x 90 x 70 mm
satin nickel
Order-No. 211130
UMT70S_nm_kl
UMT_70_S_nickel_matt_kl
black matt
Order-No. 211131

UMT_70_S_schwarz_solo_kl

UMT_70_S_schwarz_kl


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Windscreen for UMT70S, MT71S, MT711S, UM70S, M71S, M930, M940
W76_kl
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Popscreen, diameter 130mm

PO70_farbe_kl
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Microphone holder
clamp 20-28mm
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Microphone clamp 19-21mm
(Beyerdynamic)

MKV9_kl
AT 8410a anthracite
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Elastic holder 17-29mm
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AT8410a_kl
C 70.1 Order-No. 202212
Microphone holder 10m, XLR 3-pin