1. Introduction
Thank you for choosing the OctaMic. This unique Mic Preamp allows to connect any kind of
microphone to any line level inputs. Thanks to the option of battery-powered operation and
removable rack ears, the OctaMic makes an ideal companion to the Hammerfall DSP System
in mobile recording situations. But excellent signal/noise ratio, sophisticated discrete Class-A
technology, and lots of professional features make the OctaMic your first choice also in studio
use!
2. Package Contents
Please check that your OctaMic's package contains each of the following:
• OctaMic
• User's guide
• Power supply 12 V / 1.25 A and power cord
3. Brief Description and Characteristics
• 8 separate microphone inputs with discrete Class-A frontend
• Phantom power 48V, low cut and phase switchable per channel
• 48V, Clip and Level LED per channel
• Gain +10 dB up to +60 dB adjustable per channel
• Reference level switchable Hi Gain / +4 dBu / -10 dBV
• Fully compatible to RME's ADI-8 series and HDSP series
• Servo balanced inputs and outputs
• Wide frequency response with special RF input filters
• Wide operating voltage range
• 100% hum-free via internal switching regulators
4. Technical Specifications
• Current drawn at 12 Volt operating voltage: 850 mA (10 Watts)
• Accepted power supply voltage DC 8 V – 28 V, AC 8 V – 20 V.
• Dimensions: 483 x 44 x 205 mm
• Weight: 2 kg
4.1 Analog
• Inputs: XLR or 1/4" TRS (stereo) jack, servo balanced
• Impedance: 2 kOhm
• Signal to Noise ratio (SNR): 129 dB EIN @150 Ohm
• THD: 0.006% @ 30 dB Gain
• Crosstalk: > 110 dB
• Frequency response –0.5 dB: 5 Hz - 200 kHz
• Line Out: 1/4" TRS (stereo) jack, servo balanced
• Maximum output level: +21 dBu
• Output impedance: 47 Ohm
• Output level switchable Hi Gain / +4 dBu / -10 dBV
• SNR ADC Module: > 110 dBA
• Sample rate range ADC Module: 28 kHz – 200 kHz
• THD ADC Module: < 0.00032 %, < -110 dB
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General