The JJ KT66 Matched Quad is an ideal replacement in higher power amps. .
This is one big bottle packing a lot of output power !! This is a hand selected JJ KT66 matched quad and is supplied with a test certificate showing the matching of anode current and the mutual conductance. The factory pre=selects matching however we refine this process as factory matching is not up to our strict standards of being matched to within 4%.
It is recommended that you change your output valves every 18months – 2 years.
Check out our Supermatch technology.
As these are high power valves it is strongly recommended that the bias is checked when inserting in your amp
We also offer a 120 day from purchase warranty on the product ( excludes user caused mechanical damage failure and incorrectly set bias ).
Note: Valves use high voltages and these voltages are dangerous. The amp can still retain these high voltages for some time even after being switched off. If you are not sure of fitting them , please seek the services of qualified personnel