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MK Pro - Low D Whistle

Excl. VAT: £199.00 Incl. VAT: £199.00


First launched in 2003, the MK Pro has become a firm favourite with musicians around the world. Its tone, playability and appearance have set it apart from the crowd. Avoiding corner-cutting processes like moulding, casting or pressing, it's just down to superb craftsmanship and a design which offers the best possible combination of characteristics: tone, timbre, back pressure, air requirement, tuning, ergonomics, reliability (no blocking) and general feel. We offer a full guarantee but very rarely if ever get a whistle returned.
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Availability: In stock



An aluminium two-piece whistle which is tunable to allow for fine-tuning due to temperature changes or to tune to other instruments. The instrument can also be separated to be stowed in a bag or case. The tuning slide is made of metal (brass) like other high quality woodwinds (saxophone, flute etc) rather than cheaper plastic, pvc or rubber which dampens the resonance of the instrument. Models from 2016 onwards feature a seize resistant tuning slide, which if maintained with tuning slide grease will work for many years. The toneholes are positioned for optimal tuning & intonation and the mouthpieces are cut on swiss precision lathes, rather than cast or bent into shape, allowing for excellent consistency from whistle to whistle. The aluminium is anodised to both protect the aluminium an create a sealed barrier between the bare aluminium and the player.The Pro D is the original MK whistle from which all others have been based and came into existence in a workshop in the Highlands of Scotland by the famous Loch Ness.



  • In tune
  • No blocking / clogging
  • Smooth fit brass tuning slide
  • Raised walls around fipple window to give a full-bodied tone
  • Tapered airway for best balance of air requirement and back pressure
  • Ergonomic finger-hole positions
  • Anodised finish for durability
  • Each one is individually tested
  • Comes with fabric case

Key Info

Key Info

The most popular key with it being the most "social" for playing along with other musicians. The very first MK, on which other keys were based, was the Low D. Known for its full-bodied and deep tone.

At home in:
D, G, A mod (A with Gnat), Am, Em, C

At a push:


2 customer reviews

  1. The best Low D I've played

    Review by David A. Wilson (Posted on July 27, 2016)

    My MK Pro arrived a couple of weeks ago, and I've been playing it ever since. It's a fine instrument — one with a bright and lively tone, great volume and clarity, and a powerful sound. I’ve been playing a Pat O’Riardan Low D for several years; it has a soft, sweet tone, but it disappears in sessions and it tends to gum up. I don’t know how you did it, but designing a Low D that doesn’t gum up is a real plus, and another reason why I’m delighted with the whistle. And now, back to the tunes....

  2. This is not just another Low D

    Review by StoneOcean (Posted on July 09, 2016)

    I walked into Custy’s music shop in Ennis Co. Clare a few years ago and found three MK pro whistles on sale. I had heard about MK’s and heard that they were very good whistles. So I said to myself let see if they really live up to the hype. The first thing i noted as I picked the instrument up was the looks.
    Until then I had only seen pictures or videos of them. These whistles look good in pictures sure but pictures don’t really do justice to just how pretty these whistles look to the naked eye. The contours and paint job look stunning and the finish is of the highest standard. I’ve had mine for about 5 years now and there is still not so much as a scratch on the paint.
    This level of quality and attention to detail is a clear indication that these whistles are a real labour of love made by someone with a real passion for what they do.

    At this point my thoughts were. ‘Well it sure looks pretty but let’s see what it can do’.
    So I the MK to my lips and blew and immediately I was sold. There are good Low Ds out there. I’ve tried out all the well know ones and a fair few rare types and the truth is in terms of sound quality alone is that MK whistles are in a league of their own.
    The sound is richer and more complex than any Low D I have ever played.

    Moderate back pressure allows for easy breath control. Although it can be a little challenging at first to hit notes at high B and up this is a common quirk of whistles that fixes itself once the player becomes acclimatized to the particular whistle they are playing.
    The MK literally does do everything other low Ds do only better, just in terms of sound. But the slide and overblow control offered by this whistle will make your slow airs go from haunting to heartbreaking.
    The only complaint I have is that I am not a fan of the V shape on the bottom of the mouthpiece. I hear that a lot of people like it. Personally I do find it uncomfortable. I solved it by wrapping some electrical tape around the mouthpiece. But really I am nitpicking here.

    So in conclusion I’ve heard a lot of people ask on the internet questions like.
    Are MKs really that good?
    Should I get one?

    To beginners my answer is yes. Even though it is pricey. If you end up not deciding whistles are not for you. You’ll have one of the best whistles ever made. You can sell it on or pass it on to your grandkids because it will last a lifetime.

    And to any players out there. These are the best Low D whistles I have ever come across (and not by a bit either) after 26 years of playing whistles.

Key Chart

thumbnail of whistle key chart