S3-47 Microphone Kit

$ 419.00

The S3 metalwork is back in stock, without cases or mounts. We are offering a discounted "LC" edition, consisting of the S3 microphone kit and swivel mount, without case or shockmount, until the standard accessories arrive (probably July 1).

The S3-47 is our flagship transformerless K47-style microphone. Key features include:

  • Our best-selling RK-47 capsule
  • Our finest transformerless circuit (based on Schoeps)
  • 3-way pattern switch (Cardioid / Omni / Figure-8)
  • -10dB pad switch

The S3-47 is a 3-pattern version of our popular S-47 microphone kit.


The S3-47 excels at adding weight to thin or sibilant sources. Its forward mids and neutral top end provide a welcome sonic contrast to the hyped profile of most commercial mics under $1000. The S3-47 excels at:

  • Vocals (male and female)
  • Acoustic guitar
  • Electric guitar cab
  • Bass cabinet
  • Strings

See also the "S-47" column of the application guide.

Note - If you wish to record very high-SPL sources with this mic, we can recommend two simple mods to lower the mic's sensitivity and increase the pad value.

Circuit Description and Options

The S3-47 uses the latest version of our premium transformerless circuit. It is made entirely with superior parts and practices. For example, every JFET is individually selected and manually biased in our shop to ensure maximum gain and minimal distortion. The primary signal caps are polypropylene types, because they sound better. Resistors are 1% tolerance, audio quality, low-noise parts. All the "mods" and upgrades that people like to do to the Schoeps transformerless circuit have already been done.

The S3's circuit is unique for not using internal wiring. The switches are soldered directly to the main circuit board, rather than mounted to a small standalone board that would need to be wired to the audio board, introducing complexity and possible signal loss. We've kept audio traces as short as possible, and as we always do, isolated the high-impedance circuit above the circuit board. We do not compromise the sound or performance of the mic for convenience!

What's in the box?

The S3-47 kit includes:

  • The S3 microphone body, with tapered grille (satin nickel plated finish) and XLR3 insert. The front of the mic is marked with a brass "MP" diamond logo badge.
  • Our TL3 circuit kit.
  • The RK-47 capsule
  • Comprehensive, full-color, step-by-step installation instructions.

The standard S3 kits include:

  • A rigid plastic, foam-line storage case.
  • Elastic shockmount.

The "LC" (low cost) S3 kits include different accessories:

  • Swivel mount
  • Zipper pouch

The LC edition is being offered temporarily; by July 1 we expect to have the standard S3 accessories back in stock. The LC version will be discontinued at that time.

Not ready for DIY?

We sell the S3-47 as a finished microphone also; see our MP-47 microphone (which is also available in a Platinum edition).

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