Neumann USM 69i - condenser studio microphone, stereo for MS and XY stereophony, with freely adjustable capsule angles and selectable polar directional characteristics. It consists of the amplifier section and the capsule section. The amplifier section contains two very low-noise microphone amplifiers that operate independently of each other. The two double diaphragm capsules are mounted vertically, with the upper capsule able to rotate relative to the other over a radius of up to 270°. On the outer side of the housing along the line that separates the two capsules, there are coloured markers for identifying the position of the capsules relative to each other.
The polar directional characteristics can be individually selected for each capsule using the two rotary selectors. Power is supplied by connecting to any 48V Phantom power source, and an internal DC converter generates the necessary polarisation voltages for the capsules. It can also be used as a mono microphone by using the two channels of the microphone in cascade or by using a single capsule of the microphone.
