Mesa Boogie Tubes EL-34 STR 447
MESA power tubes are among the highest quality available and selected for their exceptional full-range tonal quality, consistency and reliability. All MESA tubes offer unsurpassed consistency and reliability for ANY tube amplifier, and certainly MESA amplifiers!
Remember… our dedication is to create the world’s finest tube amplifiers. And to achieve that goal requires a deeper commitment to tube quality… because the reputation of our amplifiers depends on it.