Audio Developments AD071

3 Inputs Handmade Portable Mixer 

This small size and low weight portable mixer lends itself to being mounted on a camera or attached to a belt. It has 3 inputs and 2 outputs with limiters on microphone inputs and the main outputs. There are two configurations; a one mic plus two line inputs or three mic inputs. It is capable of being set and left to process the audio. 

FEATURES 

• Mic Inputs: 1 or 3 electronically balanced type with XLR connector, 48V phantom power, high-pass filter, gain control and mic or line input selection
• Line Input: Instrumentation grade electronically balanced with gain/level control 
• Routing: Each input is routed to left, right or left and right by two toggle switches 
• Output: Electronically balanced with XLR type connectors and stereo rotary level control. Can be unbalanced without loss of level or degradation of quality. A push-button switch selects line or microphone output levels to the XLR connectors. A 3.5mm jack socket carries output signals at microphone level
• Limiters: Incorporated in the microphone inputs and the two main outputs. The mic input limiter is permanently in circuit. A push-button switch introduces the output limiters into circuit and two LEDs indicate the onset of limiting
• Line-Up Oscillator: 1kHz tone injected output level
• Powering: Either external power via a 4pin Hirose connector, or a separate PP3 mixer. A LED indicates power present and flashes when the voltage is too low

TECHNICAL SPECIFICATIONS 

• Max Gain: Mic 68dB, Line 38dB 
• Max Input: Mic 0dBu, Line +20dBu
• Input Impedance: Mic > 2kΩ, Line > 10kΩ
  
• Mic Power: +48V Phantom
• Frequency Response: +0; -1.5dB 20Hz to 20kHz 
• Hi Pass Filter: -3dB @ 110Hz 12dB Octave 
• Harmonic Distortion, Crosstalk, Max Output Level: +18dBm 
• Output Impedance: Noise 200R Source < 80dB SNR; Line 20Hz - 20kHz 
• Limiter Threshold: +8dB 
• Powering: Internal 1 x PP3 Cells, External 9V to 15V DC
• Current Consumption: 120mA 
• Dimensions: 135 x 95 x 44mm
• Weight: 400gms