Reference 400 MkI Specifications:

250watt MOSFET Amplifier
Speaker and Line Level inputs with Gain Control Range 99dB
Neutrik Speakon connector (High level 100k ohm)
Unbalanced RCA (phono) connectors (Gold Plated) (Low level 10k ohm)
Twin Sophisticated crossover circuits – variable increments between 20Hz and 120Hz
LFE Bypass setting (effective roll off set at 200hz)
12 volt trigger
Remote Control with ‘out-of-sight’ RM Eye and 4 user-presets
Phase Control infinitely adjustable between 0º and 180º * Frequency response 13hz to 200hz
D.I.P. (Dynamic Intelligent Protection)
D.A.M.P. (Digitally Accurate MicroProcessor 2nd generation)
Specially designed cabinet structure, volume, and configuration made from inert 18 & 25mm MDF
Digital Display with power output meter and frequency setting
Switched fused IEC mains input socket
300mm (12”) Ultra Long-throw Driver with Heavy Duty Chassis & Double Magnets
UK 3 year manufacturers return to base warranty
Dimensions (WxHxD ) 345mm x 385mm x 345mm * Weight 16.23kg (35.2 lbs)
finishes available, Black Ash, Cherry, Oak & Walnut. All Real Wood Veneers.