RME OctaMic II 8-Channel Premium Mic Preamp

The RME OctaMic II provides 8-channel 192 kHz / 24 bit AD conversion with eight hi-class microphone and line pre-amplification channels, featuring a combination of sophisticated components and approved RME technology.

The RME OctaMic II includes some significant enhancements compared to the OctaMic. The balanced TRS inputs of the Neutrik Combo XLR jacks are phantom power-free and can be operated as real line inputs too. The improved design of the input circuits allows for a maximum input level of +21 dBu with a convenient gain range from 6 dB up to 60 dB.

Other enhancements include: Improved signal to noise ratio (SNR) ADC 107.5 dB, improved THD, especially at higher gains, optimised heat dissipation by a new and larger housing with improved convection, internal wide range power supply with line filter, insensitive to voltage fluctuations and super-stable, short circuit proof 48 V phantom power

OctaMic II offers 8 balanced XLR mic / line inputs via Neutrik XLR/TRS combo jacks. Each channel contains switches for 48V phantom power, a low cut filter and phase reversal. Amplification can be set between 6 and 60 dB. LEDs for signal, clip, and activated phantom power give a complete overview on the unit's status.

Frontside switches include power on/off and output level, for a choice of -10 dBV, +4 dBu or Hi Gain (+19 dBu) as reference level. The balanced line level output signal is available at the back of the unit via 8 stereo TRS jacks. The specially developed, internal hi-performance switch mode power supply lets the OctaMic II operate in the range of 100V to 240V AC. It is short-circuit-proof, has an integrated line-filter, is fully regulated against voltage fluctuations, and suppresses mains interference.

The 8-channel AD-conversion of the OctaMic II operates at up to 192 kHz. The digitized signal is available simultaneously at the double ADAT output (S/MUX, up to 96 kHz), and at a DB-25 connector (4 AES/EBU outputs, up to 192 kHz). The digital part can be clocked internally (master) and externally via word clock, AES/EBU and SPDIF.

RME's outstanding SteadyClock(TM) ensures perfect AD-conversion, as jitter on the external sync-sources is nearly completely removed. All settings are done via DIP-switches on the back of the RME OctaMic II. Analog outputs and both digital outputs operate fully simultaneously. The choice of reference level affects the analog outputs only, the signal/clip indication and the AD-conversion will react only to the Gain-pots.

RME OctaMic II main features include:

• 8 x Mic / Line Preamp Input (XLR/TRS Combo)
• 8 x Line Output (TRS balanced)
• 8 x AD-converter (up to 192 kHz)
• 2 x ADAT Output (S/MUX, up to 96 kHz)
• 4 x AES/EBU Output (D-sub, up to 192 kHz)
• 1 x AES/SPDIF Sync Input
• Phase, Low Cut and Phantom power per channel
• Clip Hold Memory
• 8 balanced XLR/TRS mic/line inputs
• 54 dB gain range
• Input impedance: XLR 2 kOhm, TRS 5 kOhm
• Analog input level: from -40 dBu up to +21 dBu
• Maximum output level: +21 dBu
• Output impedance: 75 Ohm
• Output level switchable Hi Gain / +4 dBu / -10 dBV
• Signal to noise ratio (SNR): 129 dB EIN @ 150 Ohm
• THD: < 0.0005 % @ 30 dB Gain
• Large frequency range (200 kHz) with special EMI input filtering
• Frequency response -0.5 dB: 5 Hz - 200 kHz
• Hi-pass filter: 80 Hz, 18 dB/oct.
• Line Out: 1/4" TRS (6.3 mm stereo jack), servo-balanced
• Phantom power: +48 Volt in every channel
• Internal wide range switching power supply 100-240 Volt AC
• AD conversion
• SNR: >110 dB(A)
• Supported sample rates: 28 kHz - 200 kHz
• THD: < 0.0003 %, < -110 dB
• Sync Sources: AES/EBU (also SPDIF coaxial), wordclock, internal
• SteadyClock(TM) ensures best sound quality even with jittery external clocks OctaMic II