MINIBLOCK 400W

The Miniblock 400W Series enters its third generation, combining power, reliability, and versatility in a compact design. Equipped with a universal switch-mode power supply (90V to 260V), a high-efficiency Class D amplifier, and active signal monitoring with limiter, the Miniblock 400W delivers audio reproduction with ultra-low distortion (<0.1%) and maximum stability in any application.

Available in three versions — SUB, HPF, and FULL — it adapts precisely to different sound reinforcement needs, always delivering the premium performance that defines Magna.

Compact by design,
engineered for performance

mb Full

Versatile and complete, the Miniblock 400W FULL covers the entire frequency range with precision. It also features an integrated subsonic filter, providing maximum protection against ultra-low frequencies and reliable operation in any system.

mb hpf

Equipped with an integrated High Pass Filter (HPF), the Miniblock 400W HPF is ideal for 3” and 4” loudspeakers. It protects smaller transducers by eliminating unwanted sub-bass, ensuring clarity and safe reproduction.

mb SUB

Specifically designed for subwoofers, the Miniblock 400W SUB delivers dedicated power to low frequencies, ensuring deep and solid sub-bass reinforcement. Perfect for those who demand high-impact performance.

Input sensitivity: 0.420mV

RMS Power Output (1kHz Tone Burst 33/66 ms):

· 400Wrms/4Ω 33/66ms @ 1KHz tone burst
· 200Wrms/8Ω 33/66ms
· 100Wrms/16Ω 33/66ms

THD+N and SMPTE IMD: lower than 0.1%
Output impedance: < 5mΩ (damping > 200)
Signal-to-Noise Ratio (SNR): SNR better than 110dBA
Slew rate: > 30V/µs
Maximum power consumption: 0.6kVA

Outputs: Dual parallel outputs (Phoenix connector)

Inputs: Gold-plated RCA inputs

Rack Mount: Worldwide 2U rack standard

Dimensions: 145 x 87 x 230mm

Weight: 3.96 lbs | 1.80 Kg