Repair and modification services for every “classic” and vintage ribbon microphone from B&O, Tannoy, Grampian, Reslo, Geloso, RCA, Melodium, BeyerDynamics, Shure, and so on. The work is determined by the needs and applications, and can involve ribbon, magnet, motor, transformer, and electronic upgrades, as needed. We stock many different foil thicknesses and have at our disposal corrugators with different pitches to cover MOST of the ribbon corrugation types.
Alnico magnets with lost magnetic field can be replaced with Neodymium, typically increasing the mic’s output by 9-15dB. Transformers can be replaced with our own custom low-noise, low-losses and distortions, toroidal transformers, which are custom matched to the specific ribbon and/or application.
The pricing depends on the microphone and particular work involved.
Breaking News!
After many months of R&D we are proud to announce our new service! Since BeyerDynamics does not service their ribbon microphones anymore, we are the only company on the market to offer re-ribboning of the Beyer ribbon microphone classics with original “piston” type corrugation. We use pure Aluminum foil that, unlike Duralum (used in Beyer ribbons), will not get hard and brittle with time, which results in loss of bass and sensitivity. The pricing is $150 for single ribbon models and $200 for double ribbon ones.
Also, our company is the only one on the market to offer re-ribboning of B&O microphones with ribbons of original thickness and “piston” type corrugation. The price for this service is $160.
Some words on piston corrugation, used by Beyer ribbon microphones.
Since the ribbon moves in a piston mode rather than in some random manner (as in the "zig-zag" corrugation) the advantages are:
- Piston corrugation is more efficient and for the same ribbon thickness gives 2-3dB more output.
- Since the ribbon is shorter it has less DCR and lower noise.
- Piston ribbon has much less resonant modes and as such has a better transient response, as well as less distortion throughout entire bandwidth.
- Piston ribbon has a superior bass response than a “zig-zag” one, BY FAR.
- Because of much less resonant modes (especially in the lower mids), the sound of the piston ribbon is considerably less boxy.
- Piston corrugation is more durable.
Previously we were re-ribboning Beyer microphones with generally adopted 'zig-zag' corrugation. After we heard the difference the 'piston' corrugation makes, we just cannot go back to 'zig-zag', even if it is easier to implement.