Electro-Harmonix 6L6GC Matched Quad
Electro-Harmonix 6L6EH is a rugged and high-power 6L6 at a great value.
6L6EH is great in guitar amps with good high end energy and bottom end support. This is the default go-to tube as a replacement for original equipment 6L6 type tubes.
Price is for 4 matching tubes.