TASCAM’s SD-20M is a simple-to-use solid-state recorder for demanding installations. The 1U rackmount includes a pair of microphone preamps with phantom power for direct microphone recording. Both the mic inputs and line inputs can be recorded simultaneously in four-channel mode. The dual recording mode captures a copy of your audio at a lower level, as insurance against distorted takes.
The SD-20M includes a battery backup system – AA batteries can keep recording for hours in case of power loss. A wired remote or footswitch can be attached to control recording and playback. Variable speed playback allows the playback to be changed without affecting the pitch. Designed for installations like schools, house of worship, and conferences, the TASCAM SD-20M is a flexible, affordable solution for long-form recording.
XLR/TRS combo inputs on the front for easy access
Mic and line signals can be connected to the 2 XLR/TRS combo inputs on the front. Their levels can be adjusted with the dedicated knobs.
Simultaneous 4-track recording from 2 Mic and 2 Line inputs
During the recording of a meeting, for example, while recording the line outputs of the meeting system equipment, you can simultaneously record two channels of mic input separately as a backup. In a music classroom, studio or similar situation, you can easily set up a system for multitrack recording and other uses using the line inputs for instruments with line output and the mic inputs for acoustic instruments.
3-way operation power for secure recording
In addition to the included AC adapter, the unit can also be powered by 4 AA batteries. If the AC power is interrupted for any reason, the unit will automatically switch to the AA batteries and continue operating without affecting recording or playback.
Conventional SD/SDHC/SDXC cards for recording
This unit uses SD cards, which are very common and easy to obtain, as recording media. Data files recorded with the SD-20M can easily be managed or copied using the SD cards themselves and a computer, for example.
Support SDXC cards up to 128 GB for longer recording
SDXC cards with capacities up to 128 GB are supported. You can continuously record even long meetings and rehearsals, for example, with peace of mind.
WAV/BWF high-resolution recording up to 96kHz/24-bit
Linear PCM recording is supported with resolutions up to 24-bit/96kHz. Since recording with high resolution is possible, you can capture music concerts and other important events with high levels of audio quality.
Supporting MP3 recording for extended recording times
You can keep the sizes of files created smaller by selecting an MP3 format. By using an MP3 format to record meetings, discussions and other long events, you can record for much longer amounts of time on the same card compared to when using a WAV format.
50 to 150% Variable Speed Audition function
The Variable Speed Audition (VSA) function allows you to change the speed at 50–150% normal speed (in 10% increments) during playback with this unit. Since the playback speed can be changed without affecting the pitch, this function is useful for language practice and meeting transcription.
XLR/TRS combo inputs and Mic inputs with phantom power
The 2 XLR/TRS combo inputs on the front support balanced +4dBu line level input from mixers and other devices. They also support condenser Mics that require +48V phantom power supply. These features enable a wide range of setups. The locking mechanism also prevents the unintended disconnection of cables.
RCA unbalanced inputs for mixers and other devices
The RCA unbalanced inputs on the back support –10dBV line level input from mixers and other devices. Together with the XLR/TRS combo jacks, they enable connection of a variety of devices.
Auto Rec function starts recording when input level is detected
The automatic recording function starts recording when the input level is detected. For example, you can use this function to record a radio program. By setting a timer for a radio tuner and putting the SD-20M in standby, the SD-20M will start recording when the tuner turns on at the set time.
Features at a glance
XLR/TRS combo inputs on the front
Simultaneous recording of 4 tracks is possible using the 2 mic and 2 line inputs
Dual recording function
In addition to the AC adapter, 4 AA batteries can provide power as a backup, enabling operation even if AC power is interrupted
Common SD/SDHC/SDXC cards are used for recording media
Support for SDXC cards up to 128 GB enables recording for even longer times
Support for high-resolution recording up to 24-bit/96kHz using WAV/BWF formats
MP3 formats are also supported, allowing recording for even longer times
Variable Speed Audition (VSA) function, which allows playback at 50–150% normal speed (in 10% increments), is convenient for uses such as language practice and transcribing meetings
XLR/TRS combo inputs (with locking mechanisms) support +4dBu, enabling balanced input from mixers and other devices, and mics that require phantom power (+48V)
RCA inputs support -10dBV line level, enabling unbalanced input from mixers and other devices
Automatic recording function starts recording when the set audio input level is detected
File incrementing function allows a recording to be split by creating new files at times set in advance and whenever desired
Pre-recording function allows the unit to record the 2 seconds of sound before recording is activated
Automatic level function allows recording to always be at the optimal level
Limiter function automatically reduces parts to suitable levels if the input level is too high
Jumpback playback allows you to press the PLAY button once during playback to move back a few seconds and resume playback
Mark function convenient for moving to specific locations during playback
Divide function allows files to be split at positions set with the mark function and wherever desired (only with WAV files)
File name format can be set to use a user-defined word or the date
Resume function remembers the playback position when the unit is turned off
Low cut filter with three cutoff frequencies (40/80/120 Hz)
Japanese display supported
1U rackmount size