MJ Acoustics Reference 400-SR Subwoofer in mint, as new condition. Cherry finish. I purchased this sub new almost 2 years ago (Aug 2020) from an authorised UK dealer so still 3 years left under the manufacturer’s 5 year warranty. Very light use so really is like new. The MJA Ref 400-SR can be conveniently set up and controlled remotely from the user’s listening position using the free ‘MJA Smart Remote’ app on smart phone or tablet. The subwoofer comes with original packaging, power cable and manual. Also included is a custom lead to allow the sub to be connected directly to speaker terminals via the speakon high level input connector. Insured postage via RM Special Delivery in UK or collection in person. Reference 400-SR Specifications:250watt discrete High Current MOSFET Amplifier with 4 high current lateral MOSFET devicesHigh Voltage, High Current and high ripple rejection reservoir capacitors for extended transientsSpeaker and Line Level inputs with Gain Control Range 99dBNeutrik Speakon connector (High-Level 100k ohm)Twin Unbalanced RCA (phono) connector (Gold Plated) (Low level 10k ohm) for Left & Right inputsTwin Unbalanced RCA (phono) connector (Gold Plated) (Low level 10k ohm) for LFE & Centre inputsTwin Sophisticated Crossover Circuits – variable increments between 20Hz and 120HzLFE Bypass setting 200Hz12-volt trigger & Auto On/Off with sensitivity adjustmentsTrue Out of sight Remote from MJ’s Smart Remote application for iOS & Android.No IP address required and no use of a router is required for SR(Smart Remote)Ir Remote Control with ‘line-of-sight’ RM Eye option (extra cost)Phase Control infinitely adjustable between 0º and 180ºFrequency response 10hz to 200hz -3dB in roomD.I.P. (Dynamic Intelligent Protection)D.A.M.P. (Digitally Accurate MicroProcessor 3rd generation)Specially designed cabinet structure, volume, and configuration made from inert 18 & 25mm MDFDigital Display with power output meter and frequency setting on panelSwitched fused IEC mains input socket300mm (12”) Ultra Long-throw Driver with Heavy Duty chassis & Double stacked High-Density MagnetsFully saturated High-Density Magnets with extended pole piece structure for extended piston movementUK 5 year manufacturers return to base warrantyDimensions (WxHxD ) 345mm X 385mm X 345mm & Weight 17.5kg