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Shown with Black Body / Polished Nickel Grill finish.
The Knuckle Head is a passive ribbon microphone that combines the
acoustic components of the successful Fat Head ribbon with a
shockmounted headbasket design reminiscent of early broadcast
microphones.
The ribbon motor uses Neodymium magnets surrounding a 2.5-micron
corrugated aluminum ribbon measuring 5mm x 45mm. The ribbon is
mounted symmetrically within the magnetic gap, making the Knuckle
Head suitable as the “mid” mic in a MS setup — the front and back
of the mic should produce the same sound.
The ribbon motor and headbasket are suspended within a 6-inch
diameter metal hoop by eight springs. The output transformer is
located within the cylindrical shaft below the shockmount hoop.
The Knuckle Head ships with a micro-fiber cleaning cloth and a
mic clip in a padded aluminum flight case. It will be available in
either of two finishes, with an optional Lundahl 2912 or Cinemag
CM-9888 transformer upgrade.
In addition to the Black Body/Polished Nickel Grill finish, the
Knuckle Head offers an antique copper finish that is hand-applied
to each individual microphone. By using this method, every Knuckle
Head becomes unique with it's own character and is destined to
become an old school classic.
Specifications:
- Type: Ribbon (velocity) Microphone
- Ribbon type & Dimensions: 99% Pure
aluminum, 2.5 micron, 1 3/4" (L) X 3/16" (W)
- Polar pattern: Figure 8 Symmetrical design
- Sensitivity: -56 db +/- 2 dB (0 dB=1V/Pa)
- Frequency response: 30 - 18,000 Hz (+/- 3dB)
- Output Impedance: <=200 Ohms
- Recommended load impedance: >1000 Ohms
- Max.SPL (1% THD @1000 Hz): 165 dB
- Connector: 3-Pin male XLR
- Size: Diameter: O.D. grill:3", O.D. ring:6",
O.D. body:7/8", Overall length:10"
Frequency Response
and Polar Pattern w/ Stock Transformer
Frequency Response
and Polar Pattern w/ Lundahl Transformer
Includes:
- KNUCKLE HEAD ribbon microphone
- Aluminum case
- Premium adjustable mounting clip
- Micro-fiber cleaning cloth
- Specifications and typical measurement report
Available with Swedish Made Lundahl LL2912 Transformer

Lundahl LL 2912 Data Sheet
Quality aspects of Lundahl Transformers
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