The AP 1 is an one-channel microphone amplifier with an extreme low-noise circuit design, a wide dynamic range and very linear transmission properties.
With the amplifier the precise transmission of low signal levels is possible as well as the distortion-free transmission of high signal levels. It is ideally suited for the use with condenser microphones in large diaphragm transistor construction which have an extreme low noise level and a very high headroom. Recommended applications are recordings of speech, vocals or acoustical instruments. The intuitive and uncomplicated handling of the amplifier guarantees the user an absolutely concentration on the recording.
Discrete transistor amplifierOne microphone input - two parallel line outputsDefined and reproducible amplifier adjustment in 3 dB steps, switched by relays for avoiding of switching noiseStepless gain adjustment in a ±6 dB range with arrest at 0 dBSwitchable high-pass filter for impact-sound insulation with adjustable frequency between 18 Hz and 220 HzSwitchable 48 V phantom powering according to IEC 61938Phase inverter
Frequency range (±0,1 dB): 20 Hz bis 50000 Hz
Noise level: A-weighted: -127,4 dBu
Noise level: unweighted: -123,8 dBu
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