MJ Acoustics Ref 400-SR

Amplifier Type: 250-watt discrete High Current MOSFET amplifier with 4 high-current lateral MOSFET devices.Reservoir Capacitors: High voltage, high current, and high ripple rejection reservoir capacitors for extended transients. Inputs: Neutrik Speakon connector (High-Level 100k ohm). Twin Unbalanced RCA (phono) connector (Gold Plated) for Left & Right inputs (Low level 10k ohm). Twin Unbalanced RCA (phono) connector (Gold Plated) for LFE & Center inputs (Low level 10k ohm). Crossover Circuits: Twin sophisticated crossover circuits, variable increments between 20Hz and 120Hz, with LFE Bypass setting at 200Hz. Phase Control: Infinitely adjustable between 0º and 180º for precise sound optimization. Frequency Response: 10Hz to 200Hz -3dB in the room, providing an extended bass range. Auto On/Off and Trigger: 12-volt trigger and Auto On/Off with sensitivity adjustments for convenient power management. Remote Control: Infrared (IR) remote control with optional RM Eye for line-of-sight operation. Also supports MJ’s Smart Remote application for iOS & Android. Driver: 300mm (12″) Ultra Long-throw Driver with Heavy Duty chassis & Double stacked High-Density Magnets. Protection Features: Dynamic Intelligent Protection (D.I.P) and Digitally Accurate MicroProcessor (D.A.M.P) for enhanced safety. Cabinet Construction: Specially designed cabinet structure, volume, and configuration made from inert 18 & 25mm MDF for optimal performance. Display: Digital display with power output meter and frequency setting for easy control and monitoring. Warranty: UK 5-year manufacturers return to base warranty. Dimensions: 345mm (W) X 385mm (H) X 345mm (D). Weight: 17.5kg. Finishes: Available in Black Ash as standard with other Real Wood Veneer and paint finishes options.