When you look at the actual instruments, they are stamped as YTR-8445CH. This is made more confusing as Yamaha themselves market some particular trumpets with an S in their marketing material but not actually stamped on the same instument, eg: the Xeno Artist Series trumpets, only available in silver plate but marketed by Yamaha as YTR-8445CHS in all of their published material. If a model is only available in a silver plate configuration it would appear that the S is not used, eg: YTR-9610. It would appear that the S is only used when a particular model is offered in both a lacquered version and silver plate version. It is not used to denote a Small Bore even though the Custom range of Bb and C trumpets from 1982-85 started including the bore size in the model number similar to Bachs (eg: YTR-9330ML).Īdditionally, note that S is NOT used for ALL silver plated instruments though. The letter S is used to denote Silver Plating.
Letters The use of letters is inconsistent so needs to be looked at individually for each model really. Of course this doesnt hold true for the higher pitched trumpets with tuning bells and adjustable receivers etc. It basically alternates between a 0 or a 5 (with a few exceptions).
The addition of letters as described below has been introduced to help over come the limited combinations of numbers only.Īs far as I can tell there is no specific meaning to each number other than to differentiate one from others.ĮDIT: I have realized that this description is not actually correct for the last number. I think that this system worked initially until model models and artists developed and this system simply ceased to work as intended.
Ie: a 63B are both Proffesional Level, Bb, and ML bore, but the final number differentiates between the actual design of the trumpet. Id like to work out if this is a deliberate change of measurement made by Yamaha for speccific models or simply anj case of the original imperial measurements being changed to decimal and back again, each time changing slightly for the previous.Īny thoughts or knowledge in this area The measurements I have are as follows: 1 Step Bore (YTR-6310Z) 2 M (Medium) (YTR-6320) 3 ML (Medium Large) (YTR-6335) 4 L (Large) (eg: YTR-8445 But this doesnt have space for the S (Small) Bore or MS (Medium Small) bore, nor does it differentiate between same bore sizes, so Ill list the measurements in order and assume that the number system simply doesnt hold true anymore, other than maybe the 3 and 4 designation.
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