Neumannberlin TLM 67 User Manual download pdf (Page 69)

U89i

This characteristic is achieved without resort-

ing to corrective resonance effects.

The capsule it is elastically mounted to avoid

any structure borne noise that could interfere

with its operation.

Filter and attenuation

The amplifier handles sound pressure levels

up to 134 dB without distortion.

With a self noise level of 17 dB (A-weighted)

the total dynamic range is

117 dB. Maximum sound pres-

sure level is 140 dB when the

–6 dB rotary switch is in the

ON position.

A low frequency roll-off at

80 Hz or 160 Hz can be acti-

vated with the third rotary

switch below the headgrille.

This filter suppresses low frequency interfer-

ence, yet maintains an even frequency response

for close-up sound sources, for

example, when proximity ef-

fect could adversely affect the

program material.

A steep high-pass filter in the

LIN position prevents the out-

put transformer of the micro-

phone from being overloaded

due to undesired subsonic frequencies.

Operational safety

All exposed surfaces of the microphone cap-

sule, including the diaphragms, are at ground

potential. This technology makes them highly

immune to electrical and atmospheric interfer-

ence and contamination through microscopic

dust particles.

Delivery Range

Microphone U 89 i (mt)

Wooden box

Catalog No.

U 89 i .............................................................. ni .......... 006449

U 89 i mt ...................................................... blk ....... 006450

Selection of Accessories

Battery supply, BS 48 i ........................blk ....... 006494

Power supply, N 248 EU ..................blk ....... 008537

Power supply, N 248 US ...................blk ....... 008538

Power supply, N 248 UK ..................blk ....... 008539

Auditorium hanger, MNV 87 ........... ni .......... 006804

Auditorium hanger, MNV 87 mt ...blk ....... 006806

Elastic suspension, EA 89 A ............ ni .......... 007195

Elastic suspension, EA 89 A mt ....blk ....... 007196

Stand mount swivel, SG 89 .............. blk ....... 008620

Popscreen, PS 20 a ................................ blk ....... 008488

Windscreen, WS 89............................... blk ....... 007197

Microphone cable, IC 4 mt

(with stand mount swivel) ..................blk ....... 006557

A complete survey and detailed descriptions of all

accessories are contained in the accessories

catalog.

Meaning of color codes:

blk = black, ni = nickel

Technical Data

Acoustical operating principle ........................ Pressure gradient transducer

Directional pattern ............................... Omnidirectional, wide angle cardioid,

cardioid, hypercardioid, figure-8

Frequency range .................................................................................. 20 Hz...20 kHz

Sensitivity at 1 kHz into 1 kohm ............................................................... 8 mV/Pa

Rated impedance..............................................................................................150 ohms

Rated load impedance .............................................................................. 1000 ohms

Signal-to-noise ratio, CCIR

(rel. 94 dB SPL) ........................................... 66 dB

Signal-to-noise ratio, A-weighted

(rel. 94 dB SPL) ............................77 dB

Equivalent noise level, CCIR

..............................................................................28 dB

Equivalent noise level, A-weighted

......................................................... 17 dB-A

Maximum SPL for THD 0.5%

................................................................... 134 dB

Maximum SPL for THD 0.5% with preattenuation

.................... 140 dB

Maximum output voltage ................................................................................ 800 mV

Dynamic range of the microphone amplifier (A-weighted) ....... 117 dB

Supply voltage (P48, IEC 61938) ..................................................... 48 V ± 4 V

Current consumption (P48, IEC 61938) ................................................ 0.8 mA

Matching connector ................................................................................................. XLR3F

Weight .............................................................................................................................. 400 g

Dimensions ................................................................................. Ø 46 mm x 185 mm

Application Hints

• A microphone for universal usage

• Use as spot mic for

- wind instruments,

- strings,

- piano

These are just some of the most common applica-

tions. We recommend additional experimentation

to gain maximum use from this microphone.

according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS

measured as equivalent el. input signal

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 161 162

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Neumannberlin TLM 67 User Manual Page 69

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