The SD-20M 4-Track Solid-State Recorder from Tascam is a simple-to-use 1U rackmount recorder that includes a pair of microphone preamps with phantom power for direct microphone recording. It can be used to capture audio with SD cards up to 128GB in various environments and is designed for permanent installation in schools, houses of worship, conferences, and more.
Both the mic inputs and line inputs can be recorded simultaneously in four-track mode. The dual recording mode also captures a copy of your audio at a lower level as an 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. In addition, variable speed playback allows the playback to be changed without affecting the pitch.
Four-track solid-state recorder
Stereo or four-track recording (two mic/line inputs + two line inputs)
Two microphone inputs on XLR-1/4″ combo jacks, compatible with +4 dBu line level and switchable phantom power (+48V)
Two RCA line inputs on rear side for tracks 3-4 (compatible with -10 dBV line level)
Two recording formats supported:
WAV/BWF: 44.1-96 kHz, 16/24-bit
MP3: 32-320 kBps
Simple user interface
Low-cut filter with three levels (40/80/120 Hz)
Dual recording function records a copy of your audio at a lower level for a distortion-proof safety track
File divide feature
Variable speed playback changes speed without changing the pitch (0.5 times to 1.5 times in 0.1 increments)
Auto-recording function to automatically start recording based on input level
RCA stereo line outputs
Standard stereo headphones output
AA battery backup – keeps recording even after power loss
SDXC media slot supports cards up to 128GB
Highlights
Stereo or Four-Track Recording
2x XLR-1/4″ Combo Mic/Line Input Jacks
Switchable +48V Phantom Power
2x RCA Line Inputs
Low-Cut Filter with 40/80/120 Hz Levels
Dual Recording Function
Stereo Headphones Output
AA Battery Backup
Media Slot Supports Cards up to 128GB
Compact 1U Rack-Mountable Chassis
Manufacturer # SD-20M
Form Factor Rackmount
Number of Tracks 4
Max Simultaneous Tracks 4 x Recording
Max Sample Rate/Resolution 96 kHz / 24-Bit
Connectivity
Analog Audio I/O 1 x 1/4″ TRS Headphone Output
2 x Combo XLR-1/4″ TRS Mic/Line Input
Other I/O 1 x 2.5 mm TRS Remote Input
Performance
Frequency Response 20 Hz to 20 kHz +1/-3 dB (at 44.1/48 kHz)
20 Hz to 40 kHz +1/-3 dB (at 96 kHz)
Max Input Level 1/4″ Line Inputs:
+20 dBu (Balanced)
Mic Inputs:
0 dBu (Min Gain)
RCA Inputs:
+6 dBV
Max Output Level Outputs:
+6 dBV
Headphone Output Power 20 mW per Channel into 32 Ohms (Max, 0.1% THD)
Impedance Line Inputs:
≥ 10 Kilohms
Mic Inputs:
2.7 Kilohms
RCA Line Inputs:
≥ 10 Kilohms
Outputs:
200 Ohms
SNR ≥ 100 dB
THD ≤ 0.01%
Digital Audio
Audio File Formats BWF, WAV, MP3
Sample Rates 44.1 / 48 / 88.2 / 96 kHz (BWF, WAV)
44.1 / 48 kHz (MP3)
Bit Depths 16 / 24-Bit
Bit Rates 32 to 320 kb/s (MP3)
Audio Storage & Playback
Supported Media SD Card
Memory Card Slot 1 x SDXC
Supported Media Capacity SD:
64 MB Minimum to 2 GB Maximum
SDHC:
4 GB Minimum to 32 GB Maximum
SDXC:
48 GB Minimum to 128 GB Maximum
Power
Power Requirements AC/DC Power Adapter (Included), Battery
Current Consumption 1 A (Max)
Power Consumption 5 W (Maximum)
Battery Type 4 x AA
Physical
Operating Temperature 41 to 95°F / 5 to 35°C
Dimensions 19 x 1.8 x 12″ / 483 x 45 x 300 mm
Weight 6.2 lb / 2.8 kg (with Batteries)
6.2 lb / 2.7 kg (without Batteries)
Packaging Info
Package Weight 9.2
Box Dimensions (HxWxD) 5.3 x 15.6 x 21.4
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