I don't own this amp. However, I experienced something similar w/ my tube amps. The amps were great w/the demo drivers (GE) but unlistenable (gritty, flat, harsh) w/the supplied generic Chinese drivers. Upon swapping out the driver tubes, the amps were fantastic. First, though, I would contact the dealer, explain your problem, and see what his advice is.
Break-in for Resolution Audio Opus 21.
Hiya all Opus 21 owners,
How long does the opus 21 need for break-in? What kind of sonic differences can be expected?
Demo set sounded a lot smoother...esp. on female vocals...no grit and grain at all. Sibilants were also a lot more realistic...neither over or under emphasized.
Appreciate your input.
Thanks
How long does the opus 21 need for break-in? What kind of sonic differences can be expected?
Demo set sounded a lot smoother...esp. on female vocals...no grit and grain at all. Sibilants were also a lot more realistic...neither over or under emphasized.
Appreciate your input.
Thanks