Model Number DR-554-24 Audio Performance Audio Format 16/24-bit stereo, 48k or 44.1k linear PCM Input Sample Frequencies 24k to 56k samples/second, converted to 44.1k or 48k via sample rate converter Analog Inputs Balanced, XLR-3F connectors; Zin = 15KO Unbalanced RCA connectors; Zin = 10KO Maximum Input Level +27dBu balanced Input CMRR >80 dB @ 60Hz Analog Outputs Balanced, XLR-3 connectors, +4dBu Unbalanced RCA connectors, -10dBV Maximum Output Level +24dBu balanced Dynamic Range >90 dB THD+N (@ 48k linear) < 0.005% Digital I/O AES/EBU data on XLR-3 connectors AES3-ID data on RCA jacks IEC-958 type II (semi-pro) on RCA jacks General Specifications Total Recording Time > 250 hours @ 44.1k, 16-bit Recording Medium 3.5” internal hard diskW Maximum Number Of Cuts 1,000 Maximum Cut Length Equal to remaining time on disk File Import/Export .WAV Files File Backup FTP via 100Mb Ethernet port Audio Level Metering LED bar graph display, 2-channel, peak-reading Display 2 line x 20 character, vacuum fluorescentW balanced or 75W coaxial connections Panel Buttons Illuminated, silent action Mechanical/Miscellaneous Headphones Stereo ¼" (6.35mm) jack, with level control Power Requirements 95 to 240 volts, 50/60Hz, 25 watts Dimensions 5" x 15" x 9" (127mm x 381mm x 229mm) Weight 9.5 lbs. (4.3kg) net Agency Approvals UL, C-UL, FCC Class A, RoHS Country Of Origin USA   *All Specification are subject to change without notice. Product Brochure | Accessories | Owner's Manual