A replacement preamp tube that achieves the sought after Rectifier sound.
The Bugera 5AR4 Rectifier Preamp Tube is a more powerful version of the 5U4 rectifier tube and produces the famous "sag" that Rectifier amps are most well-known for with a shorter rise time. The 5AR4 is ideal for players using medium and high powered amps because of its low heat dispersion. This tubes are compatible with any Bugera amp and are easily installed. All Bugera tubes are subject to rigorous quality tests such as a 48-hour burn-in test and their vibration table test.
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