The Mesa/Boogie EL-34 Duet packs big, classic tone into the power section of your Tube Amplifier. This is a high quality, matched pair of power tubes and Mesa's best, all-purpose set of EL-34s. The MESA EL-34 Duet works great for everything from classic rock to heavy metal. These matched tubes give your amp a focused, aggressive tonality, with plenty of low-end punch, rich midrange, and detailed highs. Great for all playing styles, these tubes add that upfront British character to your rig. Mesa puts these tubes in all their EL-34-equipped amps- the EL-34 Duet flat out rocks!
The same power tubes Mesa installs in their EL-34-equipped amps