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SoundTube Entertainment SA502 50W Class-D Mini Amplifier with Power Supply
The SoundTube Entertainment SA502 Mini Amplifier with Power Supply is a powerful and cost-effective 50W Class-D amplifier engineered for external amplification with SoundTube and other high-fidelity speakers, making it well suited for 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.
The SA502 Mini Amplifier offers a maximum gain of 34 dB 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, while dual mono feeds the left input 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. The SA502 includes a power supply, stereo RCAfemale to 3.5mm male adapter, a pole/surface mount adapter, two male 4-pin Euroblock connectors, and two 3-pin Euroblock connectors.
The SoundTube Entertainment SA502 Mini Amplifier with Power Supply is a powerful and cost-effective 50W Class-D amplifier engineered for external amplification with SoundTube and other high-fidelity speakers, making it well suited for 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.
The SA502 Mini Amplifier offers a maximum gain of 34 dB 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, while dual mono feeds the left input 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. The SA502 includes a power supply, stereo RCAfemale to 3.5mm male adapter, a pole/surface mount adapter, two male 4-pin Euroblock connectors, and two 3-pin Euroblock connectors.
- 34 dB 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 12-32V trigger
- Signal detecting auto standby to conserve energy
- Bicolor LED on front panel indicates when unit has power (red) and when signal is sensed (blue)
- Dual concentric gain controls for independent channel control
- 20 Hz to 20 kHz frequency response
- 120 Hz high-pass switch (defeatable)
- Rugged aluminum housing
SoundTube Entertainment SA502 Specs
| Number of Channels | 2 |
| Power Rating | 2 x 50 W Program per Channel (Full Range) 2 x 65 W Program per Channel 1 x 90 W Program Bridged |
| Amplifier Class | Class-D |
| Load Impedance / Voltage | 4 / 8 Ohms per Channel |
| Frequency Response | 20 Hz to 20 kHz |
| Input Sensitivity | 0.05 V |
| Input Impedance | 46 Kilohms |
| Max Gain | 34 dB (at 8 Ohms) |
| SNR | > 80 dB |
| THD | 10% (at Rated Power) 1% (Below Rated Power) |
| Crossover | High-Pass: 120 Hz, 12 dB/Octave |
| EQ | None |
Connectivity
| Analog Audio I/O | 1 x Block 6-Pin Female Balanced Line Input 1 x 1/8" / 3.5 mm TRS Female Unbalanced Line Input 1 x Block 4-Pin Female Unbalanced Speaker Input 1 x Block 6-Pin Speaker Output |
| Digital I/O | None |
| USB | None |
Power
| AC Input Power | Universal: 100 to 240 VAC, 50 / 60 Hz |
| Current Consumption | 3.75 A |
Physical
| Cooling | Heatsink |
| Certifications | RoHS, cETL *as per Manufacturer |
| Operating Temperature | -20 to 150°F / -28 to 65°C |
| Dimensions | 3.9 x 1.2 x 4.0" / 99.1 x 30.5 x 101.6 mm |
| Weight | 0.5 lb / 0.2 kg |
Packaging Info
| Package Weight | 3.11 lb |
| Box Dimensions (LxWxH) | 10.4 x 9.9 x 3.5" |
In the Box
- SoundTube Entertainment SA502 50W Class-D Mini Amplifier with Power Supply
- Power Supply
- Stereo RCA Female to Mini Male Adapter
- Pole / Surface Mount Adapter
- 2 x 4-Pin Male Euroblock Connector
- 2 x 3-Pin Euroblock Connector
- 5-Year Manufacturer Warranty
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