Tascam SD-20M 4-Track Solid-State Recorder

Tascam SD-20M 4-Track Solid-State Recorder


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SKU: TASSD20M Category:
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Tascam 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 SD-20M is a flexible, affordable solution for long-form recording.


XLR/TSR combo microphone inputs on the front panel

Four-track recorder capable of simultaneously recording from both the mic inputs and line inputs

Dual recording function captures a copy of your audio at a lower level, for a distortion-proof safety track

Can record a copy of the audio at a lower level according to the set audio recording level. This allows for a backup recording in case of distortion from unexpected loud noises.

In addition to the AC adapter, it can also operate using four AA batteries, which allows for recording to continue even if AC power is lost

Compatible with SD, SDHC and SDXC media.

SDXC media slot supports up to 128 GB cards for long recordings

High-resolution recording up to 96kHz/24-bit in WAV/BWF format.

MP3 format for making long recordings.

Equipped with a Tempo change (VSA) function for adjusting the speed from 0.5 to 1.5 times (in 0.1 increments), which is great for language study.

XLR/TRS combo locking balanced inputs – mic level with switchable +48V phantom power, and +4 dBu line level (TRS) for balanced input from mixers, etc.

RCA inputs compatible with -10dBV line level unbalanced input from mixers, etc.

Auto recording function that can detect the sound input signal level and automatically start recording

Low-cut filter with three levels (40, 80, and 120 Hz)

Compatible with Japanese language display

Mounts in a single rackspace


Recording Media:

SD card (64 MB to 2 GB)
SDHC card (4 GB to 32 GB)
SDXC card (48 GB to 128 GB)

Audio Recording/Playback Format:
BWF: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 16/24-bit
WAV: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 16/24-bit
MP3: 44.1/48 kHz, 32/64/96/128/192/256/320 kBps

Number of Channels: 4 channels (stereo x 2)

Mic/Line Inputs:
2 x Combo Jacks: XLR-3-31 (1: ground, 2: hot, 3: cold)
1/4″ (6.3 mm) TRS jack (Tip: hot, ring: cold, sleeve: ground)

Mic Input Impedance:
Front jacks set to Mic
2.7 kOhms (phantom power supported)
Maximum Input Level: 0 dBu (gain: low)
Minimum Input Level: −67 dBu (gain: high)

Line Input Impedance:
Front jacks set to Line
10 kOhms or higher
Nominal Input Level +4 dBu
Maximum Input Level: +20 dBu
Minimum Input Level: -12 dBu

Line Input Impedance:
Line inputs 3/L and 4/R (unbalanced, RCA jacks)
10 kOhms or higher
Nominal Input Level -10 dBV
Maximum Input Level: +6 dBV
Minimum Input Level: -26 dBV

Audio Output Jacks:
Nominal Output Level -10 dBV
Maximum Output Level: +6 dBV

Output Impedance: 200 ohms

Headphone Output:
1/4″ (6.3 mm) standard stereo jack
Maximum Output Power: 20 mW + 20 mW (32 ohms load, 0.1 % distortion)

Remote Control Connector: 1/16″ (2.5 mm) TRS micro jack

Frequency Response:
20 Hz to 20 kHz +1/-3 dB (input 1-2 to output, Fs 44.1/48 kHz)
20 Hz to 40 kHz +1/−3 dB (input 1-2 to output, Fs 96 kHz)

Distortion: 0.01 % or less (Input 1-2 to output, Fs 44.1/48/96 kHz)

Signal to Noise Ratio: 100 dB or more (input 1-2 to output, Fs 44.1/48/96 kHz)

Power Supply: Dedicated AC adapter (TASCAM PS-P1220E), 4 AA batteries (alkaline, NiMH, or lithium)

Power Consumption: 5 W (maximum)

Input Current: 1 A (maximum)

Operating Temperature Range: 41 to 95°F (5 to 35°C)

Dimensions (WxHxD): 19 x 1.8 x 12″ (483 x 45 x 300 mm)

Weight: 6.2 lb (2.7 kg) (excluding batteries)

Additional information

Weight 11 lbs