Ruby II Shop » Valves Amplifier » Ruby II Ruby II 1.851,30 € — 1.967,46 € Output Tubes Select an option JJ-EL34L EH EL34 EH 6CA7EH TungSol EL34B Winged =C= SED EL34 Gold Lion KT77 Output Impedance Select an option 4 Ohms 8 Ohms 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 20 25 30 40 50 75 100