Premium and Hand-Selected Power Pentode


BUGERA premium-grade 5881 power tubes are hand-selected to bring out the best in your amplifier. Their consistently robust power, rugged durability and high-voltage performance make them ideal for all guitar, bass and other audio tube amplifier applications.

Glorious Tone and Dependability

Our 5881 high-end power amp tubes produce beautifully deep bass, articulate mids and tapered highs, making them ideal for styles such as blues, jazz, fusion and R&B, or any style of music where a solid dose of rich and warm tone is desired. And when compared to the competition, the BUGERA 5881 stands above the rest as the ultimate power tube for all critical output stages. It is simply one of the best 5881 tubes ever produced.

Quality is Always #1

Our state-of-the-art process begins with selecting only the finest tubes from all over the world. We then subject them to the most rigorous testing procedures, which are conducted in demanding “real-world” applications. Only about 10% pass the test and are given the BUGERA name and stamp of approval. The rest are recycled responsibly.

This highly labor-intensive process is an art we’ve mastered over many years. As a result, ours are the finest and most musical tubes you can buy – at any price!