RME Babyface Pro FS


12-in/12-out Bus-powered USB Audio Interface with Femtosecond Clock, 24-bit/192kHz AD/DA, 2 Microphone Preamps, Digital I/O, MIDI, Metering, DSP, Plug-in Bundle, and Cables – Mac/PC/iOS

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The RME Babyface Pro FS 24-Channel 192 kHz USB 2.0 Bus-Powered Audio Interface is designed for a wide variety of studio and live recording applications. Users of the original Babyface Pro will recognize the look of this portable interface, with its dedicated XLR sockets and parallel phone jacks (1/4″, 3.5mm, and TRS connections).

Familiar users will be delighted at the new improvements offered in the Babyface Pro FS. RME has implemented a +19/+4 dBu switch on the bottom to reduce the output level, allowing you to optimize the signal-to-noise ratio of the preamps on a case by case basis. The clocking, already high-quality, has been improved to provide ultralow jitter and jitter immunity. The 3.5mm headphone output power has risen from 70 to 90mW, and both headphone outputs sport improved THD up to 10 dB. Latency now has a typical delay of 5 samples AD and 7 samples DA, one-fifth of previous generations. These are just some of the improvements.

The interface ships with the company’s TotalMix FX, a software mixer available for Windows, Mac OS X, and iOS. When using the device with an iPad, an external power adapter must be used, as the iPad alone is unable to power the interface. The mixer software allows you to use the interface in a wide variety of situations, from the simple mixing of signals to more complicated routing configurations.

The unit’s FPGA-based DSP mixer adds a flexible 3-band parametric equalizer on all inputs and outputs. Delay and reverb are also on hand. Achieving sample rates and resolutions of up to 192 kHz / 24-bit, the interface offers a professional recording solution in a compact form factor.

New Features over Previous Babyface Pro

  • +19/+4 dBu switch on the bottom adds a direct way to reduce the output level, improving SNR for sensitive active monitors, as well as avoiding distortion/overloads, and keeping TotalMix FX faders near 0 dB instead of high attenuations
  • Full SteadyClock FS circuit for ultralow jitter and high jitter immunity
  • 3.5 mm TRS phones output power rises from 70 mW to 90 mW
  • THD of both phones outputs improved by up to 10 dB
  • Uses same output opamps as ADI-2 Pro
  • Output impedance of 3.5 mm TRS lowered from 2 to 0.1 ohm
  • Mic inputs SNR improved from 112.2 to 113.7 dB
  • TRS line inputs SNR improved from 114 to 116 dB RMS (120 dBA)
  • THD line inputs improved by 8 dB
  • Latency improved by six samples on the AD side by new ADC (5 samples AD, 7 samples DA)
  • No increase in power consumption, despite new features
  • K-slot for theft protection
Key Features
  • 4 Analog Inputs, 4 Analog Outputs
  • 3.5mm and 6.3mm Headphone Outputs
  • Improved Specs over Babyface Pro
  • SteadyClock FS Jitter Reduction
  • +19/+4 dBu Switch for Improved SNR
  • MIDI I/O Via Included Breakout Cable
  • -11 dB Pad +65 dB Gain, in 1 dB Steps
  • TotalMix FX Hardware Mixer
  • Class Compliant Mac, Windows, iOS, Linux



RME is a young German team of developers with a robust vision of creating innovative, user friendly, and high-quality digital audio solutions for less money. Founded in 1996, RME quickly earned their stripes as a premiere industry provider, expanding rapidly into mainstream international markets.


Tech Specifications

Form Factor Tabletop
Display None
Channels of I/O Analog:
4 Input / 4 Output
12 Input / 12 Output
Max Sample Rate/Resolution 192 kHz / 24-Bit
Number of Mic Preamps 2
Expansion Slots None
Analog Audio I/O 2 x XLR 3-Pin Balanced Mic/Line Input
2 x 1/4″ TS Unbalanced Line/Hi-Z Input
2 x XLR 3-Pin Balanced Monitor Output
1 x 1/4″ TRS Unbalanced Headphone Output
1 x 1/8″ / 3.5 mm TRS Unbalanced Headphone Output
Digital Audio I/O 1 x TOSLINK Optical ADAT / S/PDIF Input
1 x TOSLINK Optical ADAT / S/PDIF Output
Host Connection / USB 1 x USB Type-B (USB 3.0 / 3.1 Gen 1)
Wireless Connectivity None
Memory Card Slot None
Frequency Response Mic, Line Inputs:
18 Hz to 20.8 kHz -0.1 dB (at 44.1 kHz)
7 Hz to 45.8 kHz -0.5 dB (at 96 kHz)
5 Hz to 88 kHz (at 192 kHz)
Line, Hi-Z Inputs:
5 Hz to 20.8 kHz -0.1 dB (at 44.1 kHz)
3 Hz to 45.8 kHz -0.5 dB (at 96 kHz)
2 Hz to 92 kHz -1 dB (at 192 kHz)
Line Outputs:
0 Hz to 20.8 kHz -0.5 dB (at 44.1 kHz)
0 Hz to 45 kHz -0.5 dB (at 96 kHz)
0 Hz to 89 kHz -1 dB (at 192 kHz)
Gain/Trim Range Mic/Line/Hi-Z Inputs:
-11 dB to +65 dB
Max Input Level Mic Inputs:
+8 dBu (Min Gain)
+19 dBu (with Pad)
-57 dBu (Max Gain)
-46 dBu (with Pad)
Line/Hi-Z Inputs:
+13 dBu (+4 dBu)
-5 dBu (-10 dBV)
Headphone Output Power 60 mW into 10 Ohms (Max)
90 mW into 1000 Kilohms (Max)
Impedance Mic/Line Inputs:
2 to 5.2 Kilohms (Balanced)
1 to 2.6 Kilohms (Unbalanced)
Line/Hi-Z Inputs:
1 Megohm
Line Outputs:
300 Ohms (Balanced)
150 Ohms (Unbalanced)
Headphone Outputs:
10 Ohms (Unbalanced)
0.1 Ohm (Unbalanced)
Dynamic Range D/A Converters:
115 dB RMS
118 dBA
SNR Mic/Line Inputs:
113.7 dB RMS
117 dBA
Line/Hi-Z Inputs:
116 dB RMS
120 dBA
Line Outputs:
114.8 dB RMS
118 dBA
THD Line Outputs:
-106 dB / 0.0005%
Line/Mic Inputs:
-112 dB / 0.00024%
-115 dB / 0.00016% (+30 dB Gain)
THD+N Mic/Line Inputs:
< -108 dB / < 0.00035%
< -100 dB / < 0.001%
Line Outputs:
< -102 dB / 0.0008%
Channel Separation Mic/LineInputs:
> 110 dB
> 110 dB
Digital Audio
Sample Rates Up to 200 kHz
Bit Depths Up to 24-Bit
Sync Sources ADAT
OS Compatibility macOS
Included Software None
Supported Drivers/API & Plug-Ins macOS Class-Compliant (No Driver Needed)
Power Requirements AC/DC Power Adapter (Not Included), USB Bus Power
Power Consumption 2.8 W (Idle)
3.7 W (Typical)
5.4 W (Maximum)
Anti-Theft Features Kensington Security Slot
Operating Humidity 75% (Recommended)
Operating Temperature 41 to 122°F / 5 to 50°C
Dimensions 7.13 x 4.25 x 1.38″ / 18.11 x 10.79 x 3.51 cm
Weight 1.5 lb / 680.0 g


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