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Mail Order OPEN / London Store OPEN

The Daddyo is a great all-round, classic full bodied alto mouthpiece.

From the designer, Mark Sepinuck: “Daddy-O alto mouthpiece: Highly versatile and flexible alto mouthpiece that produces sounds that range from sweet, warm, and colorful to modern with some nice brightness, great clarity and punch. That’s why this is my all-around mouthpiece model. All the power necessary to lead a modern big band section through modern playing situations. Very versatile and classic sounding. An all-around mouthpiece like this should sing and ring, whether it’s warm or brighter! You can get all the classic alto vibes from this piece, but this has more power, clarity and freedom in the blow. If you need even more aggressive, just go with the Showboat model. Its that simple a choice. Bird, Stitt, Hodges, Desmond, Art Pepper, Lou Donaldson, Phil Woods, Cannonball, Charles McPherson, and Dick Oats vibes are certainly all available with this Daddy-O, to name a few, but this will have more punch to the sound than the Alto madness model, and less than the Showboat model. As always, it depends on what the player brings.

An amazing alto mouthpiece with a harmonic richness not found in more traditional designs. You can play as quiet as you want and as loud as you want and I designed it so it would not be as bright or punchy as the Showboat model can get, but still have lots of volume, killer altissimo, and more power available than most straight-ahead alto players have experienced from the vintage models. For me, it’s so much more fun and satisfying to play than any vintage Meyer Bros and all the Category 1 vintage mouthpieces. This includes Brilhart, Selmer, Meyer, Otto Link, etc…, while keeping the tradition and classic alto sound associated with those pieces available. This piece can sing over a big band section or whisper as soft as you can.”


Material: German bar stock ebonite

Made In: USA

Chamber: Medium

Baffle: Rollover

Ligature: Not included

Manufacturing Method: CNC machined then hand finished by Brian Powell

Recommended for: Jazz Professionals

Staff Review

It’s great to see 10M Fan expanding into alto mouthpiece manufacturing as it’s now possible to play with that trademark fat and full sound on alto as well as tenor. This piece for me has that real Phil Woods style tone, a lot of Meyer-like qualities in there for me. The bottom-end of the range is particularly full and broad. Within the whole sound is a built-in resistance that’s above medium for me, and I do like this except that I wouldn’t personally opt to go higher than a 6 as I believe that you have all the power needed at this level and pushing beyond this tip would create too much of a forced blow.

Overall I think this mouthpiece is excellent, and I found that the more time I spent with it the more I engaged with the different layers of tone that are available to you. Beyond its natural full-sounding starting point it can really sing with a strident and singing solo voice.


Free 1st Class Delivery on all orders over £75 to UK MAINLAND

Free Next Working day Delivery on all Saxophones to UK MAINLAND (excluding hire saxophones)

Competitive International Shipping Rates

Delivery Schedule

Orders received before 2pm are normally shipped the same day. International orders are generally received in under 7 days.

We have a massive selection of goods, although If your item is not in stock, we will back order it for you. You will always be emailed with the option to choose an alternative or cancel your order if you would rather not wait.

If you're based overseas and would like more information on shipping including customs duty, please read our Based Overseas guide located here.

Goods purchased online from can be returned within 14 days of receipt.

If you wish to return products purchased on our website please follow the guidance below.

Goods purchased online from can be returned within 14 days of receipt. This does not apply to products where hygiene is concerned and product seals have been broken (Reeds, mouthpieces etc). Goods purchased through our website cannot be returned to our retail store.

Please print and complete returns document found here: Return Document and include it inside your package.

  1. You must obtain a receipt with tracking information from the Post Office or chosen courier service. This can be used to track the item(s) that you are returning. We cannot accept liability for returned goods that we don’t receive or for those that get damaged in transit on their return.
  2. In all cases, (except where an item is faulty) the item(s) returned must be in its original and saleable condition. This includes all original packaging that must be undamaged and intact.
  3. All goods will be inspected on return. Where we have to make reductions in price to facilitate re-sale, you will be notified and the cost will be deducted from your refund.
  4. Goods are your responsibility until they reach our warehouse, so please ensure you package them up well to prevent any damage or loss during shipping.
  5. The initial postage and packaging charge is non refundable.

We aim process refunds 24 hours of receipt. If you do not see your original payment method credited within ten days please contact us.

Please send all returns to the following address:


If you have any difficulty or have any other queries regarding our returns policy, our customer services will be able to assist at or 01892662533.