GT-512 power:5w speaker:12inch IMPout :8ohm Features 5 watts (rms) 8 ohms one 6L6and two 12AX7 Single End Class A Standby 12 inch speaker Out speaker jack: 4ohm, 8ohm HI-LO IMPEDANCE input Controls: Gain, Reverb, Bass, Middle, Treble, Volume Booster/Normal SW Hi-Fi OPT Toroid power transform Head phone out FX Loop spring reverb XLR out FS jack Embeded anneuator precise parts used for lowest noise 5W metal oxide power resistors, 600V polypropylene film/foil and polyester military capacitors DIM:39(L)x26.2(W)x41.3(H)CM (Unpacked) Weight:17kg (Unpacked) OEM and ODM welecome Kits provide please use keywords kldguitar in google, all informations of us are listed on our URL contact with us by email or MSN listed on our URLChina tube Guitar amplifier, tube guitar amplifier, china guitar amplifier manufacture , guitar amplifier kits, valve guitar amplifier