PrimaLuna Tube Amplifier EVO 400
Data updated:
If your repair quote exceeds this, replace the unit.
Common Failure Points
- Power tubes
- Rectifier tube
- Bias circuitry
- Coupling capacitors
- Output transformer
Expert Verdict
A standard tube amplifier costs roughly $5,299 new. Because they typically last 12 years, depreciation accelerates after year 6. Major component failures (like motors or compressors) usually signal the end of the unit's economic life.