User Manual
User's Guide Fireface 800 © RME
4
1. Introduction 
Thank you for choosing the Fireface 800. This unique audio system is capable of transferring 
analog and digital audio data directly to a computer from practically any device. The latest Plug 
and Play technology guarantees a simple installation, even for the inexperienced user. The 
numerous unique features and well thought-out configuration dialog puts the Fireface 800 at 
the very top of the range of computer-based audio interfaces. 
The package contains drivers for Windows 2000/XP and Mac OS X. 
Our high-performance philosophy guarantees maximum system performance by executing as 
many functions as possible not in the driver (i.e. the CPU), but directly within the audio hard-
ware. 
2. Package Contents 
Please check that your Fireface 800 package contains each of the following: 
• RME Driver CD 
• Cable IEEE1394a (FW400), 4.5 m (15 ft) 
• Power cord 
• Manual 
• 1 optical cable (TOSLINK), 2 m (6.6 ft) 
3. System Requirements 
• Windows 2000 SP4, Windows XP, Mac OS X (10.2.8 or higher) 
• FireWire Interface: a free FireWire Port 400 (1394a) or 800 (1394b) 
Note: Examples and detailed descriptions of suitable audio desktop systems can be found in 
the Tech Info RME Reference PCs: Hardware recommendations. Information on compatibility 
and performance of notebooks/laptops is included in RMEs Tech Infos about notebooks, HDSP 
System – Notebook Basics and Tests. A report about incompatible FireWire 800 controllers is 
found in the Tech Info FireWire 800 Hardware – Compatibility Problems. 
4. Brief Description and Characteristics 
• All settings can be changed in real-time 
• Enhanced Mixed Mode: Analog, ADAT and SPDIF I/O simultaneously usable 
• 8 buffer sizes/latencies available: 1,0 / 1,5 / 2,1 / 3 / 6 / 12 / 17 / 23 ms 
• 8 channels 96 kHz/24 Bit Record/Playback via ADAT optical (S/MUX) 
• Clock modes slave and master 
• Automatic and intelligent master/slave clock control 
• Unsurpassed Bitclock PLL (audio synchronization) in ADAT mode 
• Word clock input and output 
• Enhanced ZLM for latency-free submixes and perfect ASIO Direct Monitoring 
• SyncAlign guarantees sample aligned and never swapping channels 
• SyncCheck tests and reports the synchronization status of input signals 
• 1 x MIDI I/O, 16 channels high-speed MIDI 
• 1 x Hi-power headphone output 
• DIGICheck DSP: Level meter in hardware, peak- and RMS calculation 
• TotalMix: 1568 channel mixer with 42 Bit internal resolution 










