Neumann.Berlin SRM 64 User's Manual
Contents
1. T TOT EHHE EN RE HHEH R HR E E UM NEUE 270 1 kHz 2 kHz 4 kHz 8 kHz 16 kHz H sf 125 Hz 250 Hz eee ee ee 1 4 4 500 Hz NICHT EINGEZEICHNETE FREQUENZKURVEN FALLEN MIT DER 1kHz KURVE ZUSAMMEN Se a Re MH a a Re i u2. 4 x AC 701k Connectors eee au E E T 3402 WeSEHD au ird e app 3 4 kg Dimensions VC NW m a Es n 120 150 cm high O and 21 mm Up D DU I E UR DII E UD e 2 b a a i Brit l HHHH FICHA BI GL E LL i 061 H p pitur Ud RU au RE eat SEE 1 COO Oe Cot qur mA mpg LY SEIN ERR 1 1809 SEEDER BUT RENS S 114 1 TIR RR URN URS ERE eT te ERI LU BI ON A DARE s ke WP AT 1
3. 40 V 22 BOmA t for 117 127 V Power consumption ee er Pa ae ds ee Sas app 14 VA DC output voltages beu vate 4 V 100 mA 120 V 0 5 mA Noise voltages eer Ea ree 8 DISUO sQ ux 9x 245244566 pia 10 pV Neon pilot lamp Rafi No 2855 110 V 220 x 100 x 120 mm NIA EE 5 app 2 2 kg Maximum lengtuih of Cable e ee es 40 m CONNECTORS Ded RE T 405 T 5084 TECHNICAL DATA Microphone 5 RM 6 4 Acoustical operation EEEE Pressure gradient transducer Directional chapactePlobtio e6 x5 cardioid Frequency 18 000 cps Output welt d vcra vere e app 0 8 mV ub across 1 ko Switchable attenuation e e eee er app 14 dB Electrical load resistance 1 000 250 a Electrical source resistance iib 200 a 50 20 Capacity of capsule cuties app 35 pF Stray VOLlUGES 509x399 E ja neonate 12 uV across 1 ko Weighted noise voltage DIN 45 405 por HA 4 5 uV across 1 ko 29 phon Maximum sound pressure for 5 distortion at 40 cps T keps and 5 KGpS ices ES 120 dB H dB above 2 10 ub Gain of microphone amplifier at 1 app 5 without coupling tube ValVy S
4. CONDENSER STAND MICROPHONE SRM 64 This long neck stage microphone is suitable even in all those applications where the use of standard micro phones would present difficulties due to their size and the consequent obstruction of view This applies particularly to film and television studios further field of application is on stages in theaters and on rostrums The microphone consists of a condenser capsule coup ling tube the microphone amplifier the stand tube and the microphone base The condenser capsule is connected to the amplifier by means of the long tube The ampli fier is housed in the stand tube which is screwed on to the microphone base By means of a collet the ampli fier can be held in the stand tube at any desired height and the height of ihe capsule above the floor can thus be altered between 1 20 meters 4 feet and 1 50 meters 5 feet The coupling tube is bent in order to point the capsule in the direction of the sound source The directional characteristic is cardioid The direc tional characteristics are almost independent of fre quency The frequency response curves for angles of sound incidence up to 435 are virtually parallel If therefore a complex sound source moves a three quarter circle around the microphone only the level varies but the tone quality remains unaltered LORE MEENA 1264256 Printed in Germany SRM 64 910 02 00 1 3 i f The freq
5. uency response of the microphone extends from 40 cps to 18 keps A slight fall below 100 cps compensates for the bass rise which is common to all pressure gradient microphones at close range At the high frequency end the response rises by about 2 s s 5 dB To avoid overloading the microphone amplifier at very high Sound levels an attenuator giving approximately 14 dB attenuation can be switched in between the capsule and the microphone valve This enables the highest sound levels that are likely to occur in practice to be reproduced without distortion STANDARD ACCESSORIES The microphone is fitted with a 6 1 Tuchel connector 3402 The connection to the supply unit is made by means of the 10 meter extension cable KC 1 Suitable supply units are the portable power supply unit NKMa the plug in power supply unit 52 and the battery unit BB 12 The versatile supply units NN 48b mains portable and BB 50 battery can also be used Power Supply Unit The portable power supply unit will supply the microphone SRM 64 from the mains The heater and HT voltages are stabilised The output from the microphone is obtained viaa 3 pole Tuchel connector type 3081 The unit is connected to the mains by means of an equipment type mains plug DIN 49 493 TECHNICAL DATA NKMa Mains Vo LCA Res ees 5 117 127 220 240 V 50 60 eps FUSES ec eee eee RT TET 50 mA mt for 220 2
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