Product overview
The RA 251 D amplifier is an ultra-compact model designed to enhance your vehicle’s audio system by adding a subwoofer, while remaining easy to install and compatible with most car radios. It delivers 150 W RMS into 4 Ω and 250 W RMS into 2 Ω, with a wide frequency response from 15 Hz to 500 Hz.
Key product details
- Power 150 W RMS (4 Ω) / 250 W RMS (2 Ω) – compatible with subwoofers
- Adjustable low-pass filter 35 Hz – 500 Hz and bass boost up to +12 dB at 45 Hz
- Frequency response 15 Hz – 500 Hz for precise and deep bass
- Short-circuit, reverse polarity, and overheat protection for safe use
- Wired remote control included for easy volume and bass level control
- Protections: short circuit / low impedance / reversal of polarity / heat protection
Technical specifications
| Verified product specifications | |
|---|---|
| Low-Pass Crossover | 35 Hz — 500 Hz (12 dB/octave) |
| Frequency Response | 15 Hz – 500 Hz |
| Dimensions (L X H X W) | 6.2″ × 1.4″ x 3.6″ — 158 mm x 36 mm x 91.4 mm |
| Official product specifications | |
| Amplifier output | 150 W RMS at 4 Ω and 250 W RMS into 2 Ω |
What you are ordering
The exact BLAM model shown above, SKU BLAM-RA251D. Match power, impedance, dimensions and included components to your planned system before checkout.
Technical information verified against the official BLAM product page.
