The SD-20M is a simple-to-use solid-state recorder at a breakthrough price. The 1-U 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-track 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.
Microphones or equipment with line-level output can be connected directly to the two XLR/TRS combo inputs on the front. Their levels can be adjusted with the dedicated knobs.
During the recording of a meeting, for example, while recording the line outputs of the meeting system equipment via the recorder’s rear line inputs, you can simultaneously record two channels separately using microphones as a backup.
In a music classroom, studio or similar situation, you can easily set up a system for multitrack recording and other purposes using the line inputs for instruments with line output and the mic inputs for acoustic instruments.
The two XLR/TRS combo inputs on the front are suited for balanced +4 dBu line level input from mixers and other devices. They also support condenser mics that require phantom power supply (48 volts). These features enable a wide range of setups. The locking mechanism also prevents the unintended disconnection of cables.
The RCA unbalanced inputs on the back support –10 dBV line level input from mixers and other devices. Together with the XLR/TRS combo jacks a variety of devices can be connected.
In addition to the included AC adapter, the unit can also be powered by four AA batteries. If AC power is interrupted for any reason, the unit will automatically switch to the AA batteries and continue operating without affecting recording or playback. Using batteries, you can even record anywhere in the field where no mains supply is available.