Number of Tracks Track‎:‎ 8Simultaneously Recording Track‎:‎ 4V‎-Track‎:‎ 64 ‎(‎8 V‎-Tracks per Each Track‎)‎sample Rate 44.1 K Hz Frequency Response 20 Hz to 20 K Hz ‎(‎+1/‎-3 D B‎)‎ad Conversion 24‎-Bit24‎-Bit + Af Method ‎(‎guitar/bass Input‎)‎*af ‎(‎adaptive Focus‎)‎ Method Is a Proprietary Method from Roland that Vastly Improves the Signal‎-To‎-Noise ‎(‎s/n‎)‎ Ratio of The A/d and D/a Converters‎.‎ Da Conversion 24‎-Bit Compatible Card Capacity Sd Card‎:‎ 1 Gb to 2 GbSdhc Card‎:‎ 4 Gb to 32 Gb Data Type Hi Fi ‎(‎mt2‎)‎ Roland/boss Original Format16 Bit Linear Stereo Wav Format‎(‎*‎)‎*song Sketch only Recording Time‎(‎for Multi‎-Track Recording‎)‎*conversion in One Track1 Gb‎:‎ 8 Hours 40 Minutes2 Gb‎:‎ 17 Hours4 Gb‎:‎ 34 Hours8 Gb‎:‎ 68 Hours16 Gb‎:‎ 136 Hours32 Gb‎:‎ 272 Hours* the Above‎-Listed Recording Times Are Approximate‎.‎ Times May Be Slightly Shorter Depending on The Number of Songs that Were Created‎.‎* the Above Number Is the Total for All the Tracks that Are Used‎.‎ if Each of The Eight Tracks Contain an Equal Amount of Data‎,‎ the Length of The Resulting Song Will Be Approximately 1/8 of The Above‎.‎Recording Time‎(‎for Song Sketch‎)‎*stereo Recording1 Gb‎:‎ 90 Minutes2 Gb‎:‎ 3 Hours4 Gb‎:‎ 6 Hours8 Gb‎:‎ 12 Hours16 Gb‎:‎ 24 Hours32 Gb‎:‎ 48 Hours Nominal Input Level Guitar/bass Jack‎:‎ ‎-10 D BuInput 1 to 4 Jacks‎:‎ ‎-50 to ‎-20 D Bu ‎(‎xlr Type‎)‎‎,‎ ‎-26 to +4 D Bu ‎(‎1/4‎"‎ Trs Phone Type‎)‎Line in Jack‎:‎ ‎-10 D Bu Input Impedance Guitar/bass Jack‎:‎ 1 M OhmInput 1 to 4 Jacks‎:‎ 3k Ohms ‎(‎xlr Type‎)‎‎,‎ 47 K Ohms ‎(‎1/4‎"‎ Trs Phone Type‎)‎Line in Jack‎:‎ 10 K Ohms Nominal Output Level Line out Jacks‎:‎ ‎-10 D Bu Output Impedance Line out Jacks‎:‎ 1 K Ohm Recommended Load Impedance Line out Jacks‎:‎ 20 K Ohms or GreaterPhones Jack‎:‎ 32 to 100 Ohms Residual Noise Level Line out Jacks‎:‎‎-85 D Bu or Less ‎(‎ihf‎-A Typ‎.‎‎)‎display128 X 64 Dots ‎(‎backlit Lcd‎)‎connectors Guitar/bass Jack ‎(‎1/4‎"‎ Phone Type‎)‎‎,‎ Input 1 to 4 Jacks ‎(‎xlr Type / 1/4‎"‎ Trs Phone Type‎)‎‎,‎ Line in Jack ‎(‎stereo Miniature Phone Type‎)‎‎,‎ Foot Sw/exp Pedal ‎(‎1/4‎"‎ Trs Phone Type‎)‎‎,‎ Line out Jacks ‎(‎rca Phono Type‎)‎‎,‎ Phones Jack ‎(‎stereo 1/4‎"‎ Phone Type‎)‎‎,‎ Usb Connector‎,‎ Dc in Jack Usb Function Audio Input/output‎,‎ Midi Input/output‎,‎ File Transfer‎,‎ Bus Power Operation Power Supply Dc 9 V‎:‎ Ac AdaptorSize Aa Dry Battery X 6 ‎(‎alkaline Batteries Recommended‎)‎Usb Bus Power Current Draw 280 M a ‎(‎dc In‎)‎480 M a ‎(‎usb Bus Power‎)‎battery Life for Continuous Use Approximately 5.5 Hours‎(‎alkaline Dry Batteries‎,‎ with Continuous Playback of 8 Tracks‎,‎ Phantom Power Off‎)‎* May Vary According to Usage Conditions‎,‎ Phantom Power Used‎,‎ Batteries Used‎,‎ and Type of Sd Card Used‎.‎Accessories Sd Card‎,‎ Ac Adapter ‎,‎ Usb Cable‎,‎ Owner‎'‎s Manual Options Foots witch‎:‎ Fs‎-5 U‎,‎ Pedal Switch‎:‎ Dp‎-2 ‎(‎roland‎)‎‎,‎ Expression Pedal‎:‎ Ev‎-5 ‎(‎roland‎)‎‎,‎ Fv‎-500 L/fv‎-500 H size and Weight Width 289 Mm11‎-7/16 Inches Depth 184 Mm7‎-1/4 Inches Height 58 Mm2‎-5/16 Inches Weight 890 G2 Lbs‎.‎