You might get a better result changing mouthpieces, or reeds.
Yes sir !
A mouthpiece with small tip opening would give warmer sound and is more suited to classical music.
Not the tip opening as a measure, particularly. More the chamber size and baffle. I can think of quite a few small opening m'pieces that are very bright...
Don't waste your money on a different neck.
Get a Meyer hard rubber mouthpiece and some Hemke reeds and your sound will warm up quite nicely.
Yes...replacement necks may be the biggest sax scam going.
Don't even go there. Seriously, you bought a chinese knockoff of a Yani...don't go wasting your time and money on a replacement neck.
I'm not a huge fan of Meyers on tenor. They can be good if you get the right one but they have a smaller chamber which makes them a bit brighter for me. I would go with more of a Otto Link type piece.
????...I just pulled out my newish Meyer Rubber 5 and my 6.....their chambers are not small.
IMHE, I consider they are medium-large in comparison to companies who call their chambers 'medium'. I think Meyers work quite nicely on Tenors, actually.
Now...again....a Link costs between $90-150...and a Meyer about $100. Both are good m'piece makers....
...but you bought a Yani knockoff....
If you want to broaden and darken the tone....you could just get a
Hite Premier for around $35 and that will serve you quite nicely....