$3500 Speakers for $350? Klipsch KL-650 Inspiration
(Dayton Audio DMPC-7.5 7.5uF 250V Polypropylene Capacitor)
هل يضر إذا استخدمت (Dayton Audio DMPC-8.2 8.2 فائق التوهج 250 فولت مكثف بولي بروبيلين) لقد جربته على المحاكاة ولم يتغير كثيرًا.
So if, no change for center speaker, what are the thoughts on getting a different stand like this to set on top of the third speaker? https://www.amazon.com/Universal-Tabletop-Stand-Base-Adjustable/dp/B01N6UZM8M
Also, how far apart would these need to be for stereo imaging? right now I have speakers on either side of a 55" tv, but these couldn't go wider, they'd likely like up with like 6 inches between each of the set of 3. Multi purpose living rooms are a thing, even if a theatre room would be ideal =)
Disclaimer: I've been in the forum long enough to know a couple things, but have yet to actually do a speaker build myself =)
I am with you. I think it is necessary to change the shape of the center speaker
Some things have to be changed 🤔
Your room would be pretty ideal for these. They don't have a wide soundstage, but that is intentional. Real wide rooms, might be problematic for them. But typical Home theaters aren't that wide, but rather longer. As far as the stand, why not just mount it on the wall?
@ekh The speaker really isn't that much bigger than a typical bookshelf speaker in terms of height and depth. It's the width that you would need to accommodate. There really is no way to keep the THX style dispersion and make the center any smaller. The horn should stay vertical, so height would be the same. If one were to change this to a horizontal, your dispersion pattern changes and the speakers would interfere more with each other and the room. It is best to keep that horn dispersion pattern the same. Someone could design a different style center if they want to, but it wouldn't be ideal to match with the fronts.
- @123toid If the trumpet is changed to square, does a fundamental difference occur? Thank you
That is a good question. The dispersion pattern would change as well as how the tweeter would react with the waveguide. Potentially changing the crossover frequency and voicing. Basically, it would be a completely new design.
How about a "younger brother" version? I was looking at using 4" full range and a slightly smaller, yet similar dispersion horn. Tentatively, I like the LaVoce FSF041.00 in 8 Ohm (paralleled for 4 Ohm Impedance), the Dayton Audio ND25FN-4 - keeping it at 4 ohm, and then the LaVoce HD1004 cast aluminum horn - you'd just have to make a mounting plate to fit the tweeter into, that would bolt to the back of the horn.
You could make a smaller box that would fit everything to better fit smaller rooms. You'd be looking at around 91-92 dB with about 80-160W (min-max). The box can definitely be tuned to 80Hz or lower using a ported version. Of course, this is just speculation, and I haven't even thought about crossover criteria.
I chose 4 ohm since many smaller rooms can get away with 4 ohm amps. and at the levels you'd be using, that shouldn't be a problem for most home theaters.
Man, I wish PE would have SPL as a sort criteria. Do you know how long it took to find really suitable small drivers??? Lol
I didn't think it would be so difficult. Everything would change
There are a lot of parameters I wish I could sort by. I think them adding that capability would entail them redoing their entire web-site. So that feature probably won't be coming anytime soon. 🤣
I might be able to look at doing a mini version sometime and see what I can come up with. The only issue, is you typically want to use two midranges to help with efficiency. The amount of 4 or 16 ohm drivers are fairly slim pickens in pro audio.
Yeah, I don't think most people do. It would basically be starting all over from scratch. I don't really have the time to do that right now. Maybe in the future, but I have so many projects lined up right now, that I am not sure when something like that would be on the table for me to design.
Ah, they could add either a sort Hi/Low/None to the Sort by: or a few sort ranges on the sidebar. They'd just have to add it to the base product form. One can dream can't they?
The LaVoce is a full range, 110-18k Hz. Could be used as a midrange. Crossover would take care of that.
4 & 16 ohm, yeah, good ones are hard to find. That's why I went with 2 - 8's in parallel, since many newer av units can drive 4 ohms.
I made the FRD and ZMA files from the graph in the PDF. I'll have to give it a go a little later in the day. I'm bushed. Does WinISD do horns?
No. You really need to measure the compression driver in the waveguide to get a good response. Some of the though processes that helps is the width of the waveguide, close to the size of the main driver is typically a good choice. You'll also want to keep radiation pattern in mind and how far it sits back to the drivers to help with physical time alignment. There can be a lot that goes into it.