The following line matching volume controls are available to make your distributed sound installation a great sounding one:

Volume controls:
VC 10: 10W, 70, 100V - metal face plate
VC 20: 20W; 70, 100V - metal face plate

De VC 1005: 5W; 100V - decorative face plate
De VC 1015: 15W; 100V - decorative face plate