Tubes : Ruby Tubes by JJ : 12AU7 preamp tube

Ruby Tubes 12AU7CZ (aka ECC82) is a high-grade, low noise, low gain tube with smooth mids and a mild top end. May be used for taming unruly amps.

Wonderful in Hi-Fi and guitar amps. Very smooth and detailed with a great open sound. Solid construction and extreme attention to detail make this tube one of the best preamp tubes in production today.

Ruby Tubes 12AU7CZ preamp tube is low noise, has sturdy construction, and great tone.

All RUBY™ Tube power tubes come already matched. There is no extra charge for this service. Our matching process is very exact and our tubes are matched within +/- 1 mA (milliamp) of each other.

All tubes are further QC checked on our own B&K equipment ,and tested here in Cornwall ,in our own shop ,to assure they meet specs.

Due to ongoing supply chain issues and tube shortages,call or email beforehand to confirm availability and current pricing