JJ Electronic KT77 Quartett

The product, service and price were fine. The original e-mail says a confirmation would follow which I have yet to receive, several days after receiving the actual goods

Fast delivery. Packing of the valves was OK and they arrived undamaged.
These were purchased to replace the EL34s in my Yaqin amplifier. Re-biassing had to be done, otherwise they would run too hot. After setting at 45mV the real fun began. They certainly live up to their reputation for deep and dynamic bass and clear top end. Plenty of definition all round. An upgrade to the el34s supplied with the amplifier then some. JJ KT77 are the king!

A really good tube! Nearly perfect sound.

I must say they are so good to deal with information is given from the moment you order until receipt. They do also offer very good quality items and at good prices. Packaging is excellent as well. Highly recommend