The moving parts of the speaker, especially the surround that supports the cone, get more flexible with extended use. The Reissue Jensens are especially notorious for it; the C10Qs I have in a couple of my amps took almost a year of regular use to quit being so harsh in the treble response and start sounding good.
__________________
"You don't have to be great to start, but you have to start to be great." -Zig Ziglar
Acoustics
2013 Guild F30 Standard
2012 Yamaha LL16
2007 Seagull S12
1991 Yairi DY 50
Electrics
Epiphone Les Paul Standard
Fender Am. Standard Telecaster
Gibson ES-335
Gibson Firebird
|