Suzuki replaced the rosewood of the original model by Koa, all new models and keys are Koa.
The main picture here shows the Koa model they both sound very similar.
The Rosewood model has been discontinued.

Once again Suzuki has researched and developed unique professional grade harmonicas.

Koa wood allows unique tonal qualities and when used in harmonica construction gives a warmer tone. Using Koa wood can produce a high velocity of sound and a broad range of mid and low overtones. These 'lows' help to create a complex bottom end which imparts a richness to the overall tone to the instrument. The re-designed reeds which are the heart of the instrument have been produced with the advanced player in mind.
However this new reed design makes it easier to play the instrument chromatically right out of the box!
The new Suzuki Reed plates allow ease of play especially with overblow and overdraw techniques. The MR-550 is Suzuki's newest all-hardwood Harmonica. Even the covers are Koa wood! It gives this model a rich dark and bluesy tone that will have your audience begging for more.
The richness of this instrument is unmatched and if you are looking for a traditional sound here it is! 

Harmonica comb material: Koa

Recommended for harmonica: advanced / pro
Style of music: Blues, Pop, country, folk, jazz

Model has been discontinued. Only few keys left in stock.