This mixer from Audio Developments has been designed for a variety of applications. However, its small size (13.5×9.5×4.0cm) and low weight (400gm), lends itself to being mounted on a camera or attached to a belt. It has 3 inputs and two outputs with limiterson microphone inputs and the main outputs. There are two configurations; a one microphone plus two line inputs orthree microphone inputs. It is capable of being set andleft to process the audio.
• MIC INPUTS – One or three 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.
• OUTPUTS – 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 microphone 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 into outputs.
• MONITORING – Headphone output on 3.5mm jack socket with a push-button switch selecting the direct or return signals. The return signals are brought in on a 3.5mm stereo jack.
• METERING – Two LED ladders indicate output level
• POWERING – Either external power, via a
4 pin Hirose connector, or a separate PP3
9V battery pack can be used to power the
mixer. An LED indicates power present
and flashes when the voltage is too low.
MAX GAIN MIC 68dB
MAX INPUT MIC 0dBu
INPUT IMPEDANCE MIC > 2K LINE >10K
MIC POWER +48V PHANTOM.
FREQUENCY RESPONSE +0; -1.5dB 20Hz to 20kHz
HI PASS FILTER -3dB @ 110Hz 12dB OCTAVE
MAX OUTPUT LEVEL +18dBm
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