Output power: 20W
Primary resistance: 6.6-8k Ohm
Secondary resistance: 0-4-8 Ohms
Frequency response: 18Hz-60KHz -2dB
Iron core: 22mm x45
Dimension: 67mm x78mm x81mm (H)
Weight: 1.7kg each
Application: 6P1, 6P3P, 6P6P, 6P9P, 6P13P, 6P14, FU7, KT66, EL34, etc.