Silver Bullet Dynamic | Low-Z 40Ω (gain)


  • Rich in tone, high in performance
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  • Tracked postage
  • Coloured Grill Fascia Options:
  • Wood, White, Yellow, Red, Blue, Orange, Purple, Green, Lime Green, Pink, Brown, Burgundy, Black, ivory

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    Silver Bullet Dynamic | Low-Z 40Ω (gain)

    The Silver Bullet Dynamic | Low-Z 40Ω (with volume control) is one of the smallest and lightest harmonica microphones available that is specifically for blues and chromatic harp players.

    The Silverfish bullet mic has at its heart a dynamic element with a lovely rich, fat tone and harmonic content and headroom to enable you to drive the mic’ and produce a classic “blues” sound – with a little help from your amp. The mic’ is low impedance which provides a medium powered microphone that may need impedance conversion (low to high) or pre-amplification for large-venue gigging but is perfect for practice or small-venue performance straight out of the box. Depending on your rig the use of an impedance converter is recommended for maximising output and significantly boosting the power output of this microphone. For example using a Shure A85F “low to high impedance microphone-matching transformer” will provide an additional 24 dB of signal gain. Note that this will also require a mono (female) to XLR (male) converter plug to link to your microphone lead and couple (line 1 and 3 to earth) to the in-line transformer. This or similar impedance conversion is really recommended as it releases the beast in this lovely dynamic mic. Dynamic mic’s are also practically bulletproof with proven reliability.

    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. Another nice detail is the rubber around 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 very 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 with a firm movement 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.

    The mic’ connects to a valve or solid state amplifier with a standard 1/4″ (6.3mm) guitar jack-plug socket and suits a rig with medium and high amp impedance sockets.

    This silverfish harp mic’ is truly an awesome microphone 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.


    • Full Volume control
    • Full bodied tone with harmonic overtones
    • Great feedback rejection
    • Lightweight/small bullet
    • Robust construction for rigor of touring
    • Steel mesh grille with acrylic 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
    • Impedance: Low 40Ω +/- 10%, unbalanced
    • Frequency response: 20-20,000 Hz
    • Polar patter: omni-directional
    • Connector: 1/4″ (6.3mm) jack
    • Weight: 105g
    • Dimensions: (Ø x H) 3.8cm (head)/3.0cm (max.barrel) x 9cm
    • 1/4″ (6.3mm) jack-plug socket
    • Case: anodised alloy
      • Fit a larger gain knob on to your Silver Bullet harmonica microphone (push fit) to increase grip and control during performance.
        Click here

        Gain Knob

        Gain Knob

      Customise your mic with a choice of fascia

      When ordering select from one of the range of fascia’s:

      Silver Bullet - Black Cat

      Silver Bullet - Ivory

      Silver Bullet - Wood

      Silver Bullet - Jade Green

      Silver Bullet - Hot Pink

      Silver Bullet - Lime Green

      Silver Bullet - Mellow Yellow

      Silver Bullet - Red Hot

      Coloured Fascia Options

    Order details

    Goods are sent out within 3-5 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: The 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.

    Additional information

    Fascia colour

    black cat, blue, brown, bugundy, hot pink, ivory, jade green, lime green, mellow yellow, orange, purple haze, red hot, white, wood


    1. Riekus

      Hi Rick!

      Fantastic I received it today thank you very much … the mic is awesome, great to see in person!

      Kind regards
      September 2015

    2. Riekus Thomsen

      Fantastic product ! A+ seller, shipped it very quickly, much appreciated!!

      Riekus Thomsen
      Devon UK
      September 2015

    3. Matt Gray

      Top Class, Many Thanks, Would Use Again, Grade A+++++ 🙂

      Matt Gray
      Dunoon, Argyll
      Scotland UK
      December 2015

    4. Jean-Luc Navette

      Thankx a lot i received it and tried it !!!!! it’s a blast !!! i love it. This black cat is evil!!!!!!! Silverfish Harmonicas makes some fantastic microphones!

      Jean-Luc Navette,
      Lyon, France

    5. Daniele Brignoli

      Dynamic Harmonic Microphone

      Hey Rick – mic arrived today, I plugged into a slightly distorted amp just when arrived and .. WOW – well.. Sound is OUTSTANDING ..! but I’m really happy not only for this .. Also finishing is so nice.. It’s Very good looking.

      Thank you for your efforts and the love you put into these beautiful little things. Thanks!! This is an outstanding mic for nice price, truckin’. GREAT tones! Daniele

      Daniele Brignoli

    6. Anna Howe

      Dynamic Harmonica Microphone

      Great thanks.. the greatest

      Anna Howe
      United Kingdom

    7. Jakub Svoboda

      Hi Rick …. I am coming back to you with my feedback on your mic. I have to say, it is absolutely stellar. Not only is it super-light, which really saves my back after a long gig, but man does it play!

      I have used it at almost all our shows and it took my playing to another level. Compared with classic harmonica mics such as the Shure Bullet and Superlux, the level of player comfort is simpy incomparable.

      We have recently recorded a new EP with our band “The Weathermakers”, where I used the Silverfish exclusively: the studuio guy was genuinely impressed with what the mic is capable of.

      …. you can hear what the “‘fish” sounds like on our bandzone pages – The fisrt four songs are from the new EP, “Dnes!” [Today!] We are also going to make a video from the session: I will be happy to send it to you when it is finished – hoping to get a glimpse of your mic in there.

      …. I am thinking about buying another one of your things – what would you recommend?

      All the best from Brno, CR

      Jakub Svoboda
      The Weathermakers
      Czech Republic

    8. George Manno


      My new microphone arrived the other day. Right out of the package I could see that this mic is a serious piece of equipment. The first thing I did was to gather a handful of harmonicas and head into my practice room. I began using my Fender Blues Junior. I was surprised how responsive the microphone is. It doesn’t take much to launch this rocket. I moved to my small 5 watt boutique amp. I got some amazing tones from my harp and the mic captured them all. Finally, I ran the mic through my stage amp; An Egnater 20-watt Rebel head with a matching cabinet filled with a 12” Weber. There is plenty of mojo in the little microphone. This mic is a keeper!! My first thought was, I should have ordered two.

      Richard, I have used 50 or 60 different “bullet” mics and I have a box full of old “57s”. Your microphone are every bit as good if not better. I can not wait to record with it. GjM

      George Manno
      United States

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