Power Tube Failure
EL34, KT88, or compatible output tubes can weaken, fail, or become electrically unbalanced with age and heat. A failed tube may cause distortion, loss of output, blown protection components, or complete failure of one channel.
Audiomat
Repair, Service, and Parts
Acme Revival is an independent repair network that operates separately from the manufacturers whose devices we service. Our independence enables a repair model that exists beyond manufacturer-controlled strategies, while preserving the ability to work with manufacturers where appropriate.
La Destrousse, France
Manuf. Location
≈ US $1.7M
Annual Revenue (est)
High-End Audio
End Use Segment
Audiomat is a small French manufacturer of high-end home audio electronics, established by the Clarisse brothers and particularly associated with handcrafted tube amplification. Its product portfolio has included integrated, pre-, power and phono amplification as well as DACs, digital transports and related source electronics. The company is especially known among audiophiles for its tube integrated amplifiers—including the Arpège, Aria, Opéra and Solfège lines—and for emphasizing hand-built construction, selected components, longevity and high-end sound reproduction. Audiomat subsequently expanded beyond its traditional tube amplifiers into digital-to-analog converters and other digital-source components while remaining focused on the specialist audiophile market.
2 Most Seen Failures:
Preamp/Driver Tube Failure
ECC83/12AX7 and other small-signal tubes can become noisy, weak, or defective, producing channel loss, crackling, hum, or degraded sound. An Audiomat Arpège Reference 10 owner traced a dead-channel problem specifically to a defective ECC83.
Bias Circuit / Cathode Resistor Damage
Failure of a power tube can overstress components in Audiomat's automatic-bias circuitry. One technician reported an Audiomat Prélude in which a failed EL34 burned a bias resistor and damaged the surrounding PCB.
Overheated Resistors
High-temperature operation can cause power resistors to discolor, drift, or eventually fail. A documented Prélude Reference refurbishment found multiple original resistors visibly overheated and replaced them with substantially higher-wattage parts.
Aging Electrolytic Capacitors
Electrolytic capacitors deteriorate with age and prolonged exposure to heat, potentially causing hum, weak output, unstable power rails, or startup problems. A documented Prélude Reference refurbishment replaced all electrolytic capacitors on and beneath the main PCB.
Noisy Volume Potentiometer / Input Selector
The volume control and source selector can develop oxidized or worn contacts, producing crackling, intermittent audio, or channel imbalance when operated. An Audiomat Prélude Reference owner reported severe crackling from both controls before servicing them.
Channel Loss / Intermittent Audio
One channel may become weak, intermittent, or completely silent because of a defective tube, contact problem, solder connection, or channel-specific component failure. Audiomat owner reports include a left-channel failure ultimately isolated by swapping tubes.
Remote Volume / Motorized Control Malfunction
Remote-equipped models can experience inconsistent motorized-volume behavior, including failure to reset or respond to remote commands. One Prélude Reference reviewer reported both failure to return the volume to zero at startup and intermittent failure of remote volume adjustment.
Speaker Binding-Post / Terminal Failure
The plastic tightening portions of some Audiomat speaker terminals can lose their grip on the underlying metal hardware, preventing reliable tightening of speaker cables. A Prélude Reference review specifically identified this mechanical weakness in the original binding posts.
1 Acme Revival offers repair, service, and part rebuild opportunities for most Audiomat devices.
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- 1 Repairs are performed on a best-effort basis. Acme Revival utilizes a network of sophisticated technicians and engineers with diverse service offerings; despite this, factors that influence the repair outcome may ultimately prove unsuccessful. Acme Revival makes no claim that it can, guarantee a repair before your device is sent in for diagnostic evaluation; even then, repair and diagnostic work are not mutually exclusive. Despite well-intentioned quoting, repairs may still prove unsuccessful.
- 2 Per information known, researched and collected by Acme Revival and its systems at time of page publishing (September 23, 2026).
- *Information regarding this manufacturer/brand/organization is estimated with information collected and known to Acme Revival. This information is intended to provide insights into the spotlight entity, however may not be accurate— information is strictly of estimate nature only.
- **The model list shown here may not be an all-inclusive list of the EcoFlow product range. Model list has been derived per information known, researched and collected by Acme Revival and its systems for the US market.
