250W CLASS D Subwoofer Plate Amplifier with Built-in Phase Switchable and Standby Mode for Professional Audio Systems
- Auto Power on/off select circuitry
- Switching power supply for excellent efficiency
- Switchable 110/230V power voltage
- Selectable 0°-180° phase adjustment
- Standby On/Auto mode options
- Variable gain level control
- Phase 0°/180° select switch & low pass variable control
- RCA input terminal
- Protection against output short, overloads & over temperature
- Power & protect indicators
| Product Name | S12A CLASS D Subwoofer Plate Amplifier |
|---|---|
| Output Power | 250W |
| Frequency Response | 20-200 Hz |
| Total Harmonic Distortion | <1% |
| Signal to Noise Ratio | >100dB |
| Input Sensitivity | 180mV |
| Built-in Phase | 0°/180° Switchable |
| Built-in Standby Mode | ON / AUTO Switchable |
| Auto Off Time | 15 mins |
| Auto On Sensitivity | 5 mV |
| Standby Power Consumption | Less than 0.5W |
| Dimensions (W × H × D) | 235 × 204 × 3.0 mm |
Standard Packaging: Product in PE bag → Gift box or inner carton with EPE inside → Outer carton
Custom packaging options available with your logo and shipping mark printing.
Shipping Options:
- Samples: Shipped via international express (FEDEX, DHL, UPS)
- Mass production: Shipped by sea (FCL, LCL) or air transportation
Vistron Audio maintains strict quality standards with comprehensive certifications:
Product Certifications:
- EU Market: CE (EMC, LVD, RF, ErP), Rohs, REACH
- US Market: UL, FCC, ETL, NRTL
- Other Markets: CB, CCC, PSE, KC, VDE, BSI, IC
Company Certification: ISO9001:2015
Established in 1998, Vistron Audio specializes in audio product design, manufacturing, and engineering services with over 20 years of experience.
Product Range:
- Power amplifiers (wireless, subwoofer, amplifier plates)
- Speakers (WiFi/Bluetooth, active/passive, subwoofers, sound bars)
- Wireless audio systems (DAB, WiFi amplifiers, streamers)
- DJ equipment (mixers, CD players, MIDI controllers)
With 200+ employees and 6000 sqm facility, we offer strong R&D capabilities, SMT production lines, and strict QC standards. We specialize in OEM/ODM services for over 100 global brands.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.