$9000 speaker Orangutan or speaker + amplifier

Having never heard either speaker, and seeing both options as viable, I see bigger up side with larger and more efficient and costly Devores even off you r current 30 watt amp, so my guess (only a guess) is that is the better way. But no telling which any individual might prefer. If someone has heard both speakers and could chirp in, that would be helpful.

Are you able to audition either before committing to buy new? That would be a big bonus.

Otherwise, wait to buy either used when you can and do not overpay and then sell and try other later if still needed without taking much of a financial hit.

Otherwise, take your pick (along with new amp if needed), but be prepared to loose money if you buy new and end up still wanting to try the other and have to sell to finance. With Harbeth, if you sell you might decide to keep the new tube amp to use with Devores and sell old amp, in which case financial loss would be less selling just new less expensive Harbeths.

If you're buying the Devores new, why don't you take advantage of your dealer's expertise? Nobody here owns them, so everyone is basically talking out of their ass. Go to the dealer, try them with a set amp and try them in your home if you need to. Then you'll really know if everything works. When you pay full retail, you should take advantage of the dealer's services. That's a significant part of what you're paying for. I've owned the SHL5 and they are wonderful, so you won't be making a mistake with them either. It's just that if you're buying used, you don't get to hear them before buying. It's a crapshoot at best as to whether they'll work in your room.

Room size and acoustics.....always a determining factor for what will work best.

Essrand,
I wouldn`t give up the idea of using a SET so quickly. If the Devore is truly 96 db sensitive and has an easy load(said to be 8- 10 ohms) a good 300b or 845 SET amp would be quite a fine match. Just go to the dealer and ask to hear it with an SET amp as Chayro wisely suggested. It seems to me the chances are very good for a successful pairing. Just go and listen.Essrand for an example, my speaker is 94db -14 ohm load(Coincident) and Chayro`s speaker is 92 db -8 ohm load(Trenner-Friedl). Both of these speakers are driven effortlessly and beautifully with our respective SET amps.These are speakers meant to be very easy loads and mate well with SET amps. Give it a try first before you reach any conclusions.
Good Luck,
Charles,

Esstrand,
Food for thought, the Trenner-Friedl Pharaoh compares favorably to the Orangutan in both price and design objectives.