Audio Nirvana Drivers

I am also not on here to bash them in any ways. I love the driver that I heard. They were in bass reflex cabinets(although very large) and were connected with standard speaker wire with there 300b amp with stock tubes. I’m just wondering, can more be done, or is it just not necessary for these drivers? Just so you’ll know that my system will be. Sonore Ultrarendu(streamer/jitter reduction)<Chord 2qute(DAC)<El34 Amp<8in Neodymium drivers. I will have a pair of audioquest water rca interconnects between the DAC and the Amp.

Thanks @zbpt, the 15in alinco is what I had a chance to listen to, they were startling good. In a well treated room they were able to completely disappear, as if music was coming out from the tip of a needle or a black hole(in the best way possible). I broke down and ordered the 8in neodymium along with there El-34 Class A Set amp. Although it is to late to rechoose, what are the pros to alinco vs neodymium in full range drivers? In your opinion, is one a superior driver over the other? I know what the owner of audio nirvana has to say on this subject, just wondering what the rest of the community has to say. I've heard conflicting information from the owner, which totally negates, the although limited, knowledge of what I know about full range driver operation and speakers in general. Examples: speaker cables dont matter, bass reflex box recommendation for full range driver, tubes dont make a difference... etc.

Thanks for the info @j_stereo, i agree, from what I heard, the highs were definetly a little rolled off. What would your opinion be on throwing a crossover in the mix and adding a super tweeter?This of course would help with the high frequency roll off, but the owner of the speakers swears that would diminish the sound. According to him, the reason they use full range drivers to start with is so there isn't a crossover. Either way, I've definetly got some tinkering to do once I get the drivers. Maybe a subwoofer in my future as well. 

@wig how long did you give them to break in. My 8in neodymium took quite awhile before they lost there "shout". I think part of the problem is that they are very very directional. I have them paired with my el34 amp still, but have gone up to the 15in classic alinco driver for my main system. The 15in Audio Nirvanas are connected to an Audio Note Kit 1 300b set amp. With an Ultra Rendu and Chord 2qute feeding the amp, the sound is sublime. Far better than I ever thought was possible, for what I paid. Very happy with the drivers, albeit not for everyone I suppose. Does dramatically improve sound with every backend component upgrade.