BlackSpider BSA20.4 20000W 4 Channel Amplifier

The BlackSpider BSA20.4 | 20000W 4 Channel Class AB Amplifier with BUILT-IN COOLING FAN
Atrax Series
Features:
- MOSFET Power Amplifier
- 2Ω Stable Circuitry
- Bridgeable Channel Configuration
- Variable High & Low Pass Crossover
- Rear Channel Bass Boost
- Built in Cooling Fan
- Built-in Protection Circuitry
- Power Output 4Ω: 130W x 4 CH
- Power Output 4Ω: 400W x 2 CH Bridged Channel Pair
- Power Output 2Ω: 200W x 4 CH
BlackSpider BSA20.4 20000W 4 Channel Amplifier.

Product Packaging
PRODUCT FEATURES:
BlackSpider BSA20.4 20000W 4 Channel Amplifier

The BlackSpider BSA20.4 | 20000W 4 Channel Class AB Amplifier with BUILT-IN COOLING FAN
Atrax Series
Unleash raw power and precision audio performance with the BlackSpider BSA20.4, a high-efficiency 4-channel amplifier from the BRAND NEW Atrax Series.
Engineered for serious audio enthusiasts, this hybrid amplifier delivers clean, punchy sound across all channels—perfect for both full-range speakers and subwoofers.
Key Features:
-
High Efficiency MOSFET Power Amplifier design
-
2Ω Stable Circuitry for reliable high-power output
-
Bridgeable Channel Configuration for flexible system setups
-
Variable High & Low Pass Crossover to fine-tune your audio
-
Rear Channel Bass Boost for enhanced low-end response
-
Integrated Cooling Fan for consistent thermal control
-
Built-in Protection Circuitry against thermal overload, short circuits, and excessive current
Power Output Ratings:
-
At 4Ω: 130W x 4 CH
-
At 4Ω Bridged: 400W x 2 CH
-
At 2Ω: 200W x 4 CH
The BlackSpider BSA20.4 delivers professional-grade performance in a compact, rugged chassis—ideal for anyone building a high-powered car audio system with precise control and long-term reliability.
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| Brand | Blackspider |
|---|---|
| Color | Black |
| GTIN | 6009804191567 |
| Product Size | 324 x 184 x 55 mm |
| Packaging Size | 44 x 21 x 9 cm |
| Packaging Weight | 3050 g |
| Power Output 4Ω (Watts) |
130W x 4 CH 400W x 2 CH Bridged Pair |
| Power Output 2Ω (Watts) | 200W x 4 CH |
| THD | ≤0.1% |
| Frequency Response | 20 Hz ~ 20 KHz |
| Signal to Noise Ratio | > 90 dB |
| Sensitivity | 0.2 x 6V |
| Recommended Fuse Type | 30A x 2 |
| Dimensions |
324 x 184 x 55 mm
|
Downloads:
| BSA80.2 User Manual | Click Here: View/Download![]() |
| BSA20.4 Amplifier | x 1 |
| Fuses | x 2 |
| User Manual | x 1 |
| Screws | x 4 |
| Mounting Brackets | x 2 |

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