There’s nothing worse than installing a microphonic tube in a high-gain preamp, or a crunchy tube in a clean preamp, or installing an unmatched set of power tubes – all will result in poor performance and bad tone. To keep your 3rd Power amplifier setup sounding its best we now offers factory matched and configured tubes sets for all of our current production amplifiers. Each set is hand-matched by the designer. 3rd Power tests and grades each tube we order marking them for gain-based preamp circuits, clean high-headroom circuits, FX loops, reverb circuits and phase inverter circuits. We also test each power tube set to ensure stable and balanced operation. Because we test each tube in circuit, we comfortably offer a 90-day warranty on tone and performance. Features include:

• Apex matched power tubes for easy bias-free replacement
• Power tubes are double checked by the designer to ensure balanced performance
• Preamp tubes are hand-selected and graded by the designer
• Drop-in replacement convenience
• Each tube labeled for proper socket installation
• 90 day warranty

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