[Intermittent or Complete Loss of Output]
Pickup, preamp, or amplifier output cuts in and out or disappears entirely. Common causes include pickup binding, damaged wiring, poor jack connections, power faults, and failed electronics.
Fishman
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.
Andover, Massachusetts
Manuf. Location
≈ US $15M
Annual Revenue (est)
Musical Instruments
End Use Segment
Fishman Transducers, Inc. is a U.S. manufacturer of audio electronics and sound systems for musical instruments, founded by Larry Fishman and particularly known for guitar and acoustic-instrument pickup technology. Its portfolio includes acoustic and electric pickups, onboard preamps, amplifiers, tone-shaping/effects pedals, wireless instrument systems, and MIDI/computer-music products. Fishman is especially associated with its Matrix acoustic pickup systems, Fluence multi-voice electric guitar pickups, Loudbox acoustic amplifiers, Aura acoustic imaging technology, and TriplePlay MIDI guitar systems. In addition to selling products directly to musicians, Fishman is a significant OEM supplier: instrument manufacturers integrate its pickups and sound-shaping electronics into finished guitars and other stringed instruments. Its OEM partner list includes brands such as Fender, Martin, Ibanez, Gretsch, Guild, Schecter, ESP, Breedlove, Cordoba, and others.
2 Most Seen Failures:
[Uneven String-to-String Output]
One or more strings produce substantially weaker or stronger amplified output than the others. On undersaddle systems such as Matrix/Sonicore designs, uneven saddle pressure, poor saddle fit, debris, or pickup positioning are frequent causes.
[Premature Battery Drain]
Active pickups and preamps consume batteries unusually quickly or are found completely dead after storage. Incorrect output-jack wiring, a switching contact that leaves the electronics powered, or other power-circuit faults are recurring causes.
[Weak or Distorted Output from Low Power]
Output becomes quiet, thin, distorted, unstable, or otherwise changes character as battery voltage falls. Fishman specifically directs users experiencing unexpected volume or tone changes on powered Fluence systems to recharge or replace the battery.
[Hum and Ground Noise]
Persistent hum or buzz appears in the amplified signal, sometimes changing when the instrument, cable, or grounding point is touched. Reported causes include damaged pickup shielding, grounding faults, ground loops, and improperly fitted undersaddle pickups.
[Output Jack or Connection Failure]
The instrument produces no signal, intermittent signal, or unreliable power activation because the endpin/output jack or its wiring is loose, damaged, miswired, or making poor contact. This is particularly consequential on active systems where inserting the plug also switches battery power.
[Power-Supply or Power-Circuit Failure]
A powered Fishman pedal, preamp, pickup system, or amplifier fails to start or stops accepting one or more normal power sources. Reports include units that work from one power source but fail from battery or DC input, indicating faults in the power path rather than the audio path.
[Feedback or Unstable Resonance]
Acoustic pickup/preamp systems develop excessive low-frequency or resonant feedback when amplified. Fishman systems commonly provide phase and notch controls specifically to suppress these problematic resonances, although installation, stage position, gain, and instrument resonance can determine severity.
[Switch, Footswitch, or Control Malfunction]
Footswitches, tuner/mute functions, switches, or associated control electronics become noisy, erratic, or fail to perform their intended function. Symptoms reported across pedal/preamp hardware include audible switching, unexpected muting or level changes, and unstable indicator/control behavior.
1 Acme Revival offers repair, service, and part rebuild opportunities for most Fishman 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 28, 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.
