Khornukopia

Is it good for your system?

Nice amp!

You have some nice choices. I like the ones in the first picture, especially if you plan to continue the grain pattern onto the top of the speaker cabinet.

McIntosh also has Class D amps. https://www.mcintoshlabs.com/products/new-products/MI254

McIntosh tube pre-amp and SS amp combo looks nice. Their new Class D amp at the 6 minute mark of the video.

The Klipsch forum is such a good influence on me that I just might get Jubilees someday and find out for myself.

Can be a great place to sometimes find good materials and in the process, help save the environment and contribute to the community.

Concrete.

When the corners have a nice finish, it can enhance the appearance of the speakers.

I agree with this and the other recommendations for a quality subwoofer.

Yes, you are right, and that probably also applies to some of the professional quality drivers being used by many other forum members. So, my comment was about tweeters in general, for all the other readers. I should have made that statement in a separate post, not attached to a quote from a post @rplace directed to @Chris A.

When measuring the HF with No XO point, it is important to set the REW test Start Frequency ___ Hz at a safe range for the delicate tweeter.

Your questions present a perspective that helps me understand some things better.

The passive crossovers you ordered just might give you the sound you want, so you should wait for that before changing the tweeters.

The door slabs do a good job and they are fairly easy to re-position.

Thanks. I wish I had thought of using door slabs before making my first corner "adjustment", but it was a good experience to learn how to stack and mortar some blocks to make a level, plumb and square corner.

Yes, and for this application, I prefer the 45mm thick solid core commercial door slabs, rather than the 35mm solid core residential (interior) doors.

Ribbon stripe mahogany has a 3-D appearance that looks good on doors.

The DE-120 might not bolt up to your existing horn, so you will want the CT-120 combo from Crites. If you are serious about getting an active crossover, you should do that (active) first.

About 50/50 ? I agree, and would want to make sure that the single 120V outlet for your entire audio system is a good, clean source to start with.

That looks good.

Have you checked with Duracrest?

I make my corners by screwing a piece of angle iron to the edge of two door slabs. Then attached the slabs on a base or a cross brace to form a rigid triangle. Easier than building a stick frame and covering that with plywood. The door knob holes are in the right spot for feeding the wires through.

Great scenery out there. Visited many areas, and I once hiked all the way across Rocky Mountain National Park.

Polyimide is an excellent choice for a tweeter diaphragm because of its strong, lightweight physical properties. I bet your new La Scala AL-5s sound as good as they look in your room.