| Brand | Massive Audio |
|---|---|
| Model | PX4 |
| RMS Power | 600W |
| Channels | 4 |
Check the listing for details. Massive Audio PX4 – High-Efficiency 4-Channel Car Audio Amplifier. Condition: New. Listed at 299.00 USD. TheMassive Audio PX4 is built for clean power, low distortion, and flexible tuning, making it perfect for door speakers, tweeters, and full-range car audio systems. ⭐What the PX4 Does for Your Sound System.