High-Z mics

Silver Bullet | High-Z ceramic and dynamic harmonica microphones

Dynamic High-Z impedance
Silver Bullet | Dynamic high-Z range have a strong, rich and full sound.

There are two high-Z dynamic microphones to chose from:

The high-Z dynamic microphone (40KΩ or mid to high-z range) is adapted from an acoustic dynamic element this is a flexible microphone with a really “hot” signal that is fat – packed with full harmonic content and great bass. The mic has perfect mid-sound without treble – with clear intonation. A high fidelity sound that can be used as both a powerful performance harp microphone and a vocal mic – perfect for blues and country singers. This mic needs to be matched to a high (=/>400KΩ or =/>0.4M Ω) impedance sockets on your amplifier; normally labelled as passive and designed for non-active piezo pickups.

Alternatively if your amp has a slightly lower (high) impedance rating you may like to chose the high-Z (4KΩ or lower end of the high-z range) microphone. This element also produces a lovely rich and fat sound and needs to be matched to a high (=/>40KΩ) impedance sockets on your amplifier.

Poorly matched impedance may diminish sound quality, volume and performance of the mic (e.g. an amp input impedance of at least 10 times the amount of the source mic impedance is advised). However, impedance miss-match can be utilised to enhance distortion to good effect!

Ceramic High-Z
Silver Bullet | Ceramic high-Z mic microphone has a robust high impedance ceramic element that provides a rich sound texture and harmonic content also with headroom for distortion straight out of the box. The element uses the same old technology as the original crystal microphones from the 50′s but with the benefit of durability. It’s a fairly clean sound but when you cup it firmly, and with a little help from the amplifier, you can get some very tasty, creamy overdrive without the annoying mid-range honk you get from a lot of microphones. The Ceramic high-Z mic can also be used with affect pedals. Ceramic microphones need to be matched to an amp which offers a high impedance socket.

The ceramic High-Z (200KΩ or high-z range) needs to be matched to a very high (=/> 2M Ω) impedance sockets on your amplifier; normally labelled as passive and designed for non-active piezo pickups.

Silver Bullet Ceramic mic’s are available with and without gain control.

Jakub Svoboda, harmonica player in the Czech blues garage band “The Weathermakers” uses a Silverfish Harmonica Microphone and recons the mic’s taken his playing to “another level”! Check out the video review and sound sample of the Silverfish Ceramic Harmonica – Bullet Microphone

Check out this great independent review by Tomlin Leckie of the Silver Bullet Ceramic Microphone alongside his other top favourite harp mics: click here

This silver bullets are awesome little microphones with technology and craftsmanship that delivers a compact design with many of the features a harmonica player wants and needs and is very technique sensitive.


  • Volume control
  • Full bodied tone with harmonic overtones and high fidelity
  • Great feedback rejection
  • Lightweight/small bullet
  • Robust construction for rigor of touring
  • Choice of gain or no gain control
  • Steel mesh grille with choice of fascia
  • Two-stage mesh & foam to reduce breath noise
  • Shock-mount design reduces handling noise
  • Rubber sleeve to improve hand-seal
  • Quality electronic components and connector
  • Holster-style case
  • One year guarantee


  • Type: durable ceramic
  • Functionality: performance harmonica
  • Impedance: High, unbalanced
  • Polar patter: omni-directional
  • Connector: 1/4″ (6.3mm) jack
  • 1/4″ (6.3mm) jack-plug socket
  • Case: anodised alloy
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