VFL Audio VFL Stealth 500.4 4-Channel Amplifier

The VFL Audio VFL Stealth 500.4 is a 4-channel Class AB amplifier designed for multi-speaker car audio systems, delivering clean, controlled power with flexible tone shaping for precise on-vehicle tuning.

• 4 CH: 4-channel operation lets you power four individual speakers or create a cohesive front/rear setup for consistent imaging.
• CONFIGURATION: Class AB topology balances fidelity with practical heat management in typical installation scenarios.
• FREQUENCY RESPONSE: 10-50 kHz range ensures extended high-frequency detail for smoother, more articulate highs.
• SIGNAL TO NOISE RATIO: 105 dB provides a low noise floor, helping quiet passages stay clean when the music isn’t loud.
• EFFICIENCY @ 4 OHM: Over 70% efficiency reduces heat and electrical demand under common car audio loads.
• DAMPING FACTOR: 150 delivers strong control of speaker cone movement, aiding tighter bass and cleaner transients.
• INPUT SENSITIVITY: 6V-0.2V accommodates a wide range of source levels, from common head units to higher-output sources.
• LOW PASS FILTER: 50 Hz–5 kHz tailors low-end output to the subwoofer and mains without bleed into higher frequencies.
• HIGH PASS FILTER: 20 Hz–5 kHz helps block subsonic content and protect woofers while shaping mid/highs.
• BASS BOOST @45HZ: 0–12 dB at 45 Hz adds precise low-end emphasis when your system needs extra punch.
• THD @ 4 OHM: <0.1% total harmonic distortion at a 4-ohm load for clean, accurate music reproduction.
• FUSE RATING: 120A fuse protection tailored to the amplifier’s power needs and vehicle wiring requirements.
• DIMENSIONS (L): 19.69 in length to plan mounting space in dash or trunk installations.

The Stealth 500.4 is ideal for four-channel setups in a wide range of vehicles, offering high SNR and low distortion while giving you flexible filtering and bass shaping to integrate subs, midranges, and tweeters without compromising clarity or control. Its substantial length requires a suitable mounting location, and the 120A fuse protection helps safeguard the installation and wiring from common power surges.