That's a big value and can get pricey, I've had good luck with Claity Cap CMR, Jantzen Aumin Z then for a smoother rich sound copper foil, Juniper, Miflex the copper foil are great for bypass also. Sonicaps aren't bad for the money certainly if you bypass them with a copper foil. If you have sand cast resistors pull all those out and add Mills or a little expensive the Path are nice. Re wire the cabinet can make a big difference. If changing out caps gets to expensive the little things like resisters, wire change, cabinet bracing does make a difference. Even with very expensive we'll know speaker company's once you open the speaker up you will be shocked the cheap crap they put in there.
