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The SA502 50W Class D Mini Amplifier with Power Supply from SoundTube Entertainment offers a maximum gain of 34dB and dual concentric gain controls for independent channel control. It has three operating modes; stereo, dual mono, or bridged mono. In stereo, each input channel flows directly to its corresponding output channel. In dual mono, the left input is fed to both output channels. In bridged mono, the left input is fed to the bridged output.
The system includes a selectable 12 to 32V external trigger input or auto standby to conserve energy. It also features three user selectable input options, balanced stereo euroblock, unbalanced line level mini jack, and a stereo speaker level (amplified) euroblock input for applications with low wattage speaker outputs.
This compact yet powerful system is engineered for external amplification with SoundTube and other sound reproduction speakers. Additional applications include digital signage, education, point of purchase, museums, surgical centers, AV carts or any application where a small amplifier is needed to boost a limited source output (e.g. computers, A/V projectors, and more).
34dB maximum gain with 2 x 50W output
Three operating modes: stereo, mono, or bridged mono
Three user selectable inputs: balanced stereo (euroblock), stereo unbalanced mini jack, or high level euroblock
External 12 to 32V trigger
Signal detecting auto standby to conserve energy
Bi-color LED on front panel indicates when unit has power (red) and when signal is sensed (blue)
Dual concentric gain controls for independent channel control
20Hz to 20kHz frequency response
120Hz high pass switch
Rugged aluminum housing
In the Box
SoundTube Entertainment SA502 50W Class D Mini Amplifier with Power Supply
Stereo RCA Female to Mini Male Adapter
Pole / Surface Mount Adapter
4-Pin Male Euroblock Connector
3-Pin Euroblock Connector
Limited 5-Year Warranty
Table of Contents
50 W per channel (8 Ω) class D amplifier
20 Hz to 20 kHz
34 dB (8 Ω) maximum
Per Channel @ < 10 % THD: 55 W (8 Ω), 2 x 70 W (4 Ω)
Per Channel @ < 1 % THD: 50 W (8 Ω), 65 W (4 Ω)
Bridged Mono Power @ < 1 % THD: 90 W (4 Ω)