Studio Microphone

switchable classical tube microphone with M 7 double membrane capsule

- condenser microphone

- omni-directional, widecardioid, cardioid, supercardioid, figure of 8

- large diaphragm capsule

- PVC diaphragm

- tube pre-amplifier

- phantom powering P48

The UM 900 is the first switchable pattern, tube condenser microphone that can be connected to industry standard 48 Volt phantom powering using a regular 3-pin XLR-microphone cable. This is made possible by an advanced circuit design for the amplifier and internal power supply. The pickup capsule uses a traditional, proven design with two large, gold plated plastic membranes.

The high sensitivity and low noise of the UM 900 make it especially suitable for vocal and speech pickup in professional sound recording studios, scoring stages and broadcast studios. The 5 pickup patterns allow the microphone to be used for a wide variety of applications. E.g. the microphone can be used as an overall pickup for a large orchestra or as a solo or spot mike for individual instruments. It can also be used as an announcers microphone where its proximity effect is desirable.

- Polar pattern: omni, widecardioid, cardioid, supercardioid, figure of 8

- Acoustic operating principle: pressure gradient transducer

- Frequency range: 20 Hz to 20.000 Hz

- Sensitivity at 1 kHz: 25 mV/ Pa, cardioid 40 mV/Pa

- Level selector switch: -10 dB / cardioid +4 dB

                              -10 dB

- Output impedance: 30 Ohm

- Noise level: CCIR 468-4 26 dB

                  DIN EN 60268-4 16 dB-A

- Signal-to-noise ratio: CCIR weighted 68 dB

                              A-weighted 78 dB

- SPL for THD 0,5 %: 130 dB

- with 10 dB preattenuation: 140 dB

- Dynamic range: 114 dB

- Current consumption: 4 mA

- Tube (low-noise): sub-miniature tube

- Output connector:  XLR3M

- Weight: 900 g

- Length: 200 mm

- Diameter: 75 mm

- Surface: satin nickel, dark bronze