The A1524+ is the largest most powerfull Amp it features a 15" speaker with 2 tweeters and crossover. The cabinet is lighter and smaller than most other brands. The 3 channel Pre-Amp includes the following Features. Channel 1 includes 1 XLR microphone input and 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 effects processors. Channel 3 includes 1 1/4" & 2 RCA jacks for any device with line level output such as, MP3 Players - CD Players - Tape Decks - Submixers - Keyboards - Drum Machines Ect. The power section provides 125 watts RMS to the internal speakers. Other Features: an 8 ft power cord with cord wrap bracketts, 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 Black SRO Carpet with metal corners, a reinforced strap handle and a black nylon grille cloth.                       Size 23x19x14" Weight 50lbs.