- Available in Matched Pairs and Quads only
- Pricing is for a pair or for a quad
- Construction is similar to a frame-grid tube - similar to the Telefunken ECC803s. Very rugged and reliable. This is one of the best new 12AX7 tubes from Russia
- This is the same tube used in our standard tube set for the PAS-M Preamp
- Nice and musical - rich tones and great harmonics