The A442+ is the same as the A440+ however the 10" speaker has a much larger magnet & voice coil , for a much higher DB output. It features a 10 inch Speaker and tweeter with crossover. The Bass reflex port allows for the maximum Bass response possible for the cabinet size & volume. The 3 channel Pre-Amp includes the following features. Channel 1 includes 1 XLR microphone input & 1 1/4" input for instruments or microphones, also Volume-Bass-Treble & Reverb controls. Note: Both inputs may be used at the same time. Channel 2 includes 1 1/4" input with a passive/active switch , lo cut filter switch and Volume-Bass-Mid-Treble and reverb Controls. Also included is an insert jack for effect procesors. Channel 3 includes 1 1/4" & 2 RCA jacks for any device with line level output such as, MP3 Players - -CD Players - TapeDecks - Submixers - Keyboards - Drum Machines Ect. The Power section provides 60 Watts RMS to the internal speakers. Other Features: An 8 ft. power cord with cord wrap brackets, external fuse holder , Speaker ON/OFF Switch ,stereo headphone jack (mono signal) ,1/4" line out jack and a reverb ft. switch jack. The cabinet is covered in a Heavy-Duty Vinyl,Brown or Black with Metal corners, a reinforced strap handle and black nylon grille cloth. Size 17.5x15.5x9.75 Inches. Weight 33 Lbs.