KONDENSATORMIKROFONE FÜR STUDIO - UND MESSTECHNIK M I C R OT E C H G E F E L L M 990 Tube condenser microphone with cardioid polar pattern The M 990 is renowned for its high sensitivity and excellent signal-to-noise ratio. It combines modern large diaphragm capsule technology with the typical full-bodied sound of tube microphones that are preferred by vocalists and soloists. The M 990 vacuum tube condenser microphone is well-suited for difficult radio play productions as well as a supporting microphone for orchestra recordings. The new pressure gradient transducer of the M 990 uses a large diameter gold-plated plastic diaphragm. The vacuum tube preamplifier is equipped with a pentode working as a triode selected for its sonic characteristics. The N 920.1 power supply provides the operating voltage for the vacuum tube condenser microphone. It can be powered from AC mains with a primary voltage of 115 or 230 volts / 50 or 60 Hz. For cable lengths over 50 meters it is recommended to have your service provider set the heater voltage of the power supply to 5.8 volts. The N 920.1 is equipped with an on/off-switch, a 7-pin Tuchel connector that powers the microphone and a 3-pin XLR connector with integrated line voltage selector . The M 990 is packed in a wooden case and comes with power supply N 920.1, connection cable C 92.1 and elastic suspension EA 92. The microphone is available in a dark bronze finish. Delivery Tube microphone M 990 in wooden case L x B x H 275 x 90 x 70 mm Power supply N 920.1 Connection cable C 92.1 Elastic suspension EA 92 dark bronze Accessories, optional Windscreen, anthracite Popscreen, black Microphone holder, dark bronze Connection cable with swivel mount Suitcase, aluminium MICROTECH GEFELL GMBH GEORG - NEUMANN - PLATZ D-07926 GEFELL INTERNET http://www.microtechgefell.de e-mail [email protected] Order-No. 202402 Order-No. 600018 Order-No. 202322 Order-No. 202206 Order-No. 702001

Tube condenser microphone Polar pattern Acoustic operating principle Frequency range Sensitivity at 1 kHz Rated impedance cardioid Pressure gradient transducer 40 ... 18000 Hz 28 mV/Pa 200 Ω 24 dB 13 dB - A 70 dB 81 dB 119 dB 106 dB 120 V1 mA5,8 V200 mAEF 86 7-pin Tuchel C 70/A 400 g 185 mm x 43 mm Equivalent loudness level CCIR 468-4 due to inherent noise DIN EN 60 651 Signal-to-noise ratio CCIR-weighted (re 1 Pa at 1 kHz) A-weighted Max. SPL for THD ≤ 0,5 % Total dynamic range of the microphone preamplifier DC power supply Anode current Heater voltage Heater current Tube Output connector Weight...