Ketron Audya 4 Arranger-and Midi-Soundmodul, 197-note polyphony, 384 orchestral sounds, 512 GM2 sounds, 300 styles with 4 variations, internal thomann 80GB hard drive, TFT colour display, 320 registration memories, digital drawbar organ with 9 drawbars, internal audio player for wav/mp3 files, SMF player for midifiles and karaoke files, 32 MIDI channels, lyrics display, 2-track audio recorder, internal 64MB RAM memory for sounds, transpose function, accordion mode, DSP effects, internal 5-voice vocalist function, 2 microphone inputs with individual gain controls, 10-band EQ, delay and reverb, 2x USB-host connections, USB-device connection, MIDI in1/in2/out/thru, L/R line out, 4 individual outputs, digital S/PDIF in & out, headphones out, 2x XLR microphone inputs, 2 line inputs, footswitch input (FS6 or FS13), sustain pedal thomann input, volume pedal input, VGA video interface, dimensions L x B x H in mm: 530 x 330 x 130, weight 7,0 kg