Silver Bullet Dynamic | Special II 4KΩ Clean


  • Rich in tone, high in performance
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Silver Bullet Dynamic | Special 4K

The Silver Bullet Dynamic | Special 4KΩ (with volume control) is a very special and top-of the range harmonica mic. Special in its unique looks, feel, features and especially sound. The heavy-duty metal design, finished with a lovely bamboo fascia is a very nice look with a solid and robust industrial feel (there is a touch of steam-punk in its design!). This mic produces a lovely rich tone with full harmonic content and great bass. The element has the widest frequency response and dynamic range of the Silver Bullets with a slightly lower sensitivity and as a result a higher headroom to distortion. At lower gain settings this produces clear and rich low, mid and high sound without excessive treble. Alternatively, if you like crunch distortion – turn up the gain to drive the mic’ and achieve a crunchier sound when used in conjunction with reverb – producing a classic “blues” harmonica sound. Dynamic microphones have proven reliability and are ideal for practice or gigging – blues, country or chromatic harmonica performance. This microphone is medium (4KΩ) impedance which therefore needs to be matched to a high (=/>40KΩ) impedance sockets on your amplifier.

The microphone’s size and shape provides a durable design which is smaller than a Marine Band and fits neatly in your hand and pocket. It is a perfect size for getting a really good seal for amplified harmonica playing which is much easier than with a larger bullet mic. A really nice feature of this mic is the inset rubber seal and gnarled ring at the head of the mic’ which serves two purposes: firstly it means that the harmonica isn’t going slip out of your hands when they get sweaty (a real issue!); secondly it helps achieve a consistent airtight seal around the harmonica and microphone to get the biggest “tone” you possibly can.

The mic’ is exceptionally light in your hand and is easy to hold with a harmonica while performing so you don’t get hand cramp after a long practice or performance. The volume knob is small and very firm which means you are not going to accidentally twist it in the middle of a particularly enthusiastic harmonica solo. The sensitive volume control provides you with excellent control to boost your output or control feedback or to increase gain for distortion effect or control unwanted feed-back issues. The mic’ connects to a valve or solid-state amplifier with a standard 1/4″ (6.3mm) guitar jack-plug socket.

This high impedance dynamic mic’ is top-of- the range and special in terms of sound, feel and playability.

Feedback and excellent sound sample from Goran Begonja Manchester UK harp player – Silver Bullet | 4K Special (bronze):

“I am very happy with the microphone, it is nice, well made and it sounds nice. I like nice and clear sound when uncupped, which suits well type of music my current band is playing, but also, when cupped, it can give nice bluesy sound (as example attached, Honkin’ Tom’s Vintage 15g amp, a bit of delay on the pedal, and the golden melody in Bb). The microphone truly is a piece of artwork….”


  • Full bodied tone with harmonic overtones and high fidelity
  • Great feedback rejection
  • Lightweight/small bullet
  • Robust construction for rigor of touring
  • Steel mesh grille with bamboo 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


  • Type: rugged dynamic
  • Functionality: performance harmonica
  • Impedance: Medium 4KΩ +/-10%, unbalanced
  • Sensitivity: -65dB
  • Frequency response: 20-20,000 Hz
  • Polar patter: omni-directional
  • Connector: 1/4″ (6.3mm) jack
  • Weight: 90g
  • Dimensions: (head) x 3.7cm (length) x 7cm
  • 1/4″ (6.3mm) jack-plug socket
  • Case: antique brass (copper) or chrome – plated alloy

Order details

Local currency conversion should be displayed during the point of PayPal payment of your purchase.

Goods are sent out within approximately 5 working days from receipt of payment. UK orders are sent out by Royal Mail (tracked). Orders to other worldwide destinations are sent standard tracked airmail.

Returns & cancellations Please do not buy to try. Goods delivered correctly and in accordance with your order will not be accepted for credit or refund without good reason.

Please note: Harmonica and cable are for display purposes and are not included. As a natural material the colour and grain of the wood fascia may vary slightly from the photographs.

Please note: Poorly matched impedance may diminish the 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) and reduces sound quality.

Additional information

Metal Finish

antique brass, chrome