Restoration
Full restoration for long-term reliability.
Scoped around the unit's condition, known failure points, and how you intend to use it. Power stages are rebuilt and ageing components renewed where it supports another decade of stable operation.
What's included
- Full recap (correct series and temperature ratings)
- Power supply rebuild and verification
- Relay replacement, speaker and protection
- Bias and DC offset calibration
- Protection and fault-path testing
What you get
- Clear scope agreed before work begins
- Parts summary and internal photos where practical
- Post-work functional verification
- Advice on system matching and safe use
Repair
Systematic fault diagnosis and repair.
Most faults in older equipment trace back to ageing capacitors, oxidised controls, cracked joints, relays, or tired protection circuitry.
Typical faults
- Channel dropouts and crackling
- Hum, noise and grounding issues
- Protection relay not engaging
- Overheating and bias drift
- Distortion at volume
Typical fixes
- Switch and pot cleaning or replacement
- Relay replacement
- Targeted component replacement
- Reflow of stressed solder joints
- Calibration and stability checks