I haven't heard the Tucana amp, but I've listened to the Tucana CD player with the Pulse III amp. That combination sounded good with virtually any speakers they were paired with, among others: B&W, Dali, Focal, Spendor. It really is up to you to decide what sound character you want.
If you don't know what you want, go listen and compare the Spendor A6 to the Focal 826. Then let us know what you thought of both.