Raven Blackhawk LE... am I going to be disappointed?

Well it seems like B is enjoying the journey including the various detours along the way so that is all that matters.

Yes as anyone with eyes and ears will learn over time there are many ways to skin the cat, each with their associated advantages and disadvantages.

Do note though that high efficiency alone does NOT, repeat NOT, assure optimum performance with any amp. It only means things are most likely to be loud enough with most any amp in most any room in peoples homes.

Reviews of high efficiency speakers with measurements have shown that high efficiency speakers are subject to the same kinds of load issues at various frequencies as low efficiency speakers to the extent that tonality can vary significantly still amp to amp. So it may pay to be aware that high efficiency alone does NOT assure optimal performance as designed. An easy load still matters. You can have the ability to go loud and still never have the desire to actually do it. Some may simply have no need...more modest volumes may suffice.

Also, good quality full range high efficiency speakers tend to be large and expensive. There are much fewer options to choose from. That is a big downside for those to whom it might matter.

But, if you filter the bass from the mains and use a sub to carry the load, that effectively makes you speakers MORE efficient than they were otherwise because producing flat and extended bass response is where most of the work is. So a properly implemented crossover and sub greatly increases the choices for speakers to use with a lower power amp ....in fact most any speaker might be made to work well with a 20 watt soft clipping tube amp if enough of the work producing flat extended bass is offloaded elsewhere.

Even in the best case though, listening at levels > than mid 80s SPL regularly is scientifically proven to be bad for your hearing over time so best to avoid that as much as possible.

Also as always, of course YMMV. It pays to be aware of these things (efficiency, load/impedance/phase measurements at various frequencies) when matching speakers to amps in order to get to a synergistic combo faster and more cost effectively. These are specifications/measurements that truly matter, but of course you still never know for sure exactly what will float one’s boat exactly for sure until you try. While good performance can be predicted, good sound is largely always still in the ear of the listener. That part of it is very hard to quantify. Good specs/measurements merely helps assure that more people will be able to achieve some degree of optimal performance faster and easier and along with that chances go up that the sound will be deemed "good" by more.

Of course price alone can often be the best spec/indicator to predict what people will think sounds good. People are funny that way....but its true.

I am enjoying all this friendly banter.

My personal recipe for good sound is based on speakers first. No secret I am a fan of wide dispersion speakers particularly omnidirectional speakers like mbl.

In my case, the key ingredient is still the Ohm Walsh speakers that are designed to work well for omnis in most peoples actual rooms. So I build around that.

I use high power high current Class D amps that do the job of driving Ohms to the nth degree. Throwing the kitchen sink amp-wise at speakers is much more practical and cost effective these days with advances in amplifier (not speaker) efficiency, mainly Class D.

CLass D and Ohms are a match many have found to be heaven made.

High efficiency amp technology takes one in a totally different direction than high efficiency speakers. It’s the wave of the future. It allows amp and speakers to be smaller and hence work better for more. Whereas large full range high efficiency speakers are the opposite, although as mentioned powered subs that almost always apply Class D amplifier technology these days helps even out the battlefield.

Of course most Class D amps have very high Damping factor that can make many smaller speakers tend to sound thinner or dry than tube amps which typically have low Damping factor.    So not all will take to the sound in all cases.   Just like anything else.   Though I do also run a pair of small Kef ls50 metas  (also measured as having very good dispersion for a box design) off the same CLass D amps as my big Ohms with the 12" main Walsh driver and the sound is to die for, especially with CLass D powered sub added.

Its definitely a preference kinda thing. I much prefer lower sensitivity speakers in the 90-93db range when paired with the right tube amplifier(s). It can be a more forgiving and less forced type of sound.

Did the low-watt triode thing with 95+ db efficient (shouty) speakers. An entirely different type of presentation if that’s what you are in to. People with low-watt amps tend to rotate a lot of speakers.

+1 @decooney A preference thing. Not an objective best thing. Exactly. There must be synergy (weasel word but valid in its weasel way) but beyond that preference. Trial and error.