Vox Valvetronix VT100X 100 Watt Guitar Modeling Amp Number of amp types - 22 Number of effects - 12 Number of programs - 66 preset, 8 user Input/output jacks - 1x INPUT, 1 x FOOT SW jack, 1 x PHONE jack, 1 x EXTERNAL SPEAKER OUT jack, 1 x LOOP RETURN jack, 1 x LOOP SEND jack Power amp output - 100W RMS @8 ohms