UNI-PEX / SDU-300

An SD recorder unit exclusively for the TWB-300 and TWB-300N. It is possible to record sound simultaneously with amplification.

■Power supply voltage: DC12V, powered from the embedded device
■Current consumption: 80mA or less (playback, recording), 70mA or less (standby)
■Compatible SD cards: SDA-compliant SD cards (16MB-2GB), SDHC (4GB-32GB)
■File system: FAT12, FAT16, FAT32
■Maximum number of recognized files: 7 specified files
Maximum 100 files other than the specified file name (individual playback not possible)
(Only the root directory is supported for saving)
■Audio compression/expansion method: MP3 format (MPEG1 Audio Layer3)
■Playback bitrate: 32kbps-320kbps
■Recording bitrate: 128kbps (sampling frequency 44.1kHz)
■Frequency characteristics: 20Hz-20kHz (deviation ±3dB (1kHz standard, rated output)
■S/N ratio: 70dB or more
■Dynamic range: 80dB or more
■■Linearity: ±1.0dB, 0dB (0dB to -40dB)
■Distortion rate: 0.1% or less (1kHz, rated output)
■Song selection: Select with rotary switch (1-7, ALL1, ALL2, etc.)
■Mode selection: Select with rotary switch (8 playback modes, 2 recording modes)
■Input sensitivity: Recording input: -2dBV ±3dB 10kΩ
■Output sensitivity: Audio output: -27dBV ±3dB 10kΩ
■Accessories Functions
Recording sensitivity selection (normal/high sensitivity)
Interval function during repeated playback
(1 time only, 0 seconds, 10 seconds, 30 seconds, 1 minute, 5 minutes, 10 minutes, 30 minutes)
■Exterior: Steel plate
■Dimensions: Width 63 mm, height 16 mm, depth 113 mm (excluding connector)
■Weight: Approximately 130 g
■Accessories: Instruction manual (with warranty) x 1, setting screwdriver x 1, sponge (for attaching to embedded devices) x 1, SD name (for attaching to embedded devices) x 1