Once a tape head has worn to the point where performance is affected - generally in the form of high frequency loss and overall instability, particularly on edge tracks - it is no longer usable and careful restoration of the original head contour is required. Following a microscopic inspection of the head gap, the original contour is then restored as closely as possible. This is also necessary in order to recover the original frequency response, particularly at lower frequencies. Depending on how far wear has been allowed to progress between laps, relapping can usually be performed 2 to 3 times over the life of a typical pro audio head.

As part of head refurbishment, inductance tests are made to confirm the electrical condition of each channel. Head wiring is also repaired as needed. If the head was received as part of an assembly, it is optically aligned to conform to guides and other heads present on the assembly. Optionally, flutter rollers can be cleaned and lubed for an additional fee. A head report confirming electrical and mechanical condition is available upon request for each job we complete. In the event that your heads cannot be reconditioned, JMA Audio will recommend OEM or custom manufactured replacements tailored to your specific requirements.

In addition to tape heads and related items, JMA can also supply long life neoprene capstan rollers, tape guide assemblies, lifter sleeves, etc. for many classic analog tape machines. We also have a limited supply of "new old stock" and used items. If you are seeking a specific part, contact us. If we don't have it, we may be able to refer you to an alternate source.

We are an authorized dealer for ATR Services Master Calibration Tapes. Magnetic Reference Labs test tapes and accessories such as the Annis Han-D-Mag demagnetizer are available via special order. We can also provide professional head and capstan cleaning products, as well as machine and assembly specific lubricants.

Magnetic card reader and LTC tape drive head refurbishment or replacements can be provided as required. JMA's extensive experience with a wide variety of industrial tape drives means that we have most likely seen your device previously and can recommend the proper repair or replacement procedure required to restore it to working order.

We also offer full reconditioning and replacement for Magna Tech, MTM, RCA, Westrex and many other film recorder / reproducer heads. We can repair Teccon and other maker's mono, 3 & 4 track and custom head assemblies, and can usually obtain replacement heads if needed.