Matched pair (2 tubes).
Matched Quads (4 tubes).
All tubes are tested and matched (even the singles are separated matched pairs)
A beam pentode tube with an octal base, the EL34 tube (valve) is one of the original workhorses for musicians and HiFi aficionados. Developed in the 1050's by Mullard they soon became very popular with audio manufacturers
What equivalents exist?
EL34 tubes are equivalent to
6CA7 developed by Sylvania to be compatible with the EL34.
KT77 GEC originally developed this tube to rival the EL34 and some say its the best version of all the EL34 models
CV1741 is a NOS version of the EL34 range.