Product overview
The RA 754 D amplifier is an ultra-compact 4-channel Class D amplifier designed to enhance the power and dynamics of your audio system, even with factory-installed car radios. It delivers 50W RMS per channel into 4 Ω and 75W RMS into 2 Ω, with a bridge mode offering 150W RMS per channel into 4 Ω, ideal for efficiently driving your Relax 2 Ω speakers.
Key product details
- 4 channels – 50 W RMS (4 Ω) / 75 W RMS (2 Ω) – bridge 150 W (4 Ω)
- 120 Hz low-pass and 100 Hz high-pass filters for precise frequency adjustment
- Frequency response 10 Hz – 22 kHz for detailed and dynamic sound reproduction
- Protections against short circuits, low impedance, reverse polarity and overheating
- Ultra-compact and compatible with original car radios
- Protections: short circuit / low impedance / reversal polarity / heat protection
Technical specifications
| Verified product specifications | |
|---|---|
| Rms Power (4 Ω) | 4 × 50 Watts |
| Rms Power (2 Ω) | 4 × 75 Watts |
| Low Pass Crossover | 120 Hz (12 dB/octave) |
| High Pass Crossover | 100 Hz (12 dB/octave) |
| Frequency Response | 10 Hz – 22 kHz |
| Dimensions (L X W X H) | 188 × 91.4 × 36 mm – 7.4’’ × 3.6’’× 1.4’’ |
| Official product specifications | |
| Amplifier output | 75 W RMS at 2 Ω |
What you are ordering
The exact BLAM model shown above, SKU BLAM-RA754D. Match power, impedance, dimensions and included components to your planned system before checkout.
Technical information verified against the official BLAM product page.


