新喇叭還是翻新？

I have an old Yamaha Geyer YHR-861 that I played professionally for many years. I got it back in 1987. The lead pipe has a slight bend in it and there are dings everywhere... This was a terrific horn for me but I am afraid all the wear and tear has caused it to sound inferior to its younger days.

Should I consider refurbishing this horn or move on? How do you know when a horn has taken on too much collateral damage to be worth saving?

乾杯!
約翰福音

嗨，約翰：
861 是一款出色的號角——我彈了將近 8 年。 我會說堅持下去！ 它們是非常理想的儀器 - 除非閥門洩漏（我懷疑），否則其他一切都可以很容易地修復。 小凹痕通常不會影響樂器的演奏方式 - 但經驗法則是，如果凹痕大於管子直徑的 20%，則會影響號角的演奏方式。
（因此，與鍾形尾部類似大小的凹痕相比，導管中較小的凹痕會改變喇叭的感覺）。
讓你信任的人完成工作——四處打聽——並享受那個號角！
肯·波普