User`s guide

User's Guide OctaMic © RME

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