Its a 50mm dome according to their specs, but I haven't measured that yet exactly.
Preliminary specs look promising considering the cost and physical appearance. Based on the workmanship and casting, I don't see how they're making much money on this driver.
The VC former isn't vented, which is to be expected at this price point. There's definitely room for modifications and basic improvements, not much though.
My only gripes are the higher Fs for its size and the dip at 3 to 4 k indicating some energy storage issues. The rear chamber isn't removable, but it looks like you can access the dampening material from the pole cavity opening. The shielding cup appears to double as the rear chamber. Maybe some heat applied could loosen the adhesive if its the hot melt based variety.
And yes, I'll check the unit to unit TSP consistency shortly. Looking at the build quality, it can't be too bad. I have a total of 4 of these.
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That's a HiVi RT1CA planar tweeter you've got mounted with dual-dome mids in that pic: How do you like it? Any comments about best use, etc? I just picked up a pair, no time to try anything with them.
NOTE to OP: If this is too off-topic, please lmk, I'll pm @adason directly.
And how do you use it? IE -- xover slope, freq. How does it compare vs not only other planars like GRS or B&G, but AMTs, AI or BE domes? I've tried B&G, the GRS variants, big original Heil AMT, and Aurum Cantus AST2560 -- the last is my fave, with back open. That's the other question -- have you tried opening up the back of the RT1?
The 2560 AMT looks attractive. It has better top end extension than most other similar sized AMTs and decent midrange odd order HD, which typically isn't that low on many AMTs, especially compared to that of decent dome tweeters.
The Hivi RT1.3WE is one of the best inexpensive smaller planars currently available. It has a very open and extended top end, better than most AMTs under $100. Sensitivity is high as well at low 90s dB /2.83v.
Gee quite a juicy period. Afterall it's just another ribbon. If it is actually so good then they should publish all of the tricks and micro dampening marvels applied. And let me tell you those don't age well. I danced up and down ribbons for decades and tossed in the towel. It doesn't matter what they cost, the physics is narrow beaming. Before you fall in luv with ribbons in general start off applying yourself to a pair of Scintillas. You will quickly obtain a deep understanding of the task at hand. Naturally the smaller they get the more controllable they become. The only period that exist requires a gas feed. And believe it or not nasa wasn't involved.
DD
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I owned Sonique Encores that used two Dynaudio D52 dome mids in a Duntech type WMTMW arrangement.They are fantastic sounding speakers.Later models used Morel dome mids
http://go.diyaudio.com/?id=69111X15...a13e2c28&cci=e1c9cb25f1e543bbbe5ec37a0958cbd3
http://go.diyaudio.com/?id=69111X15...a13e2c28&cci=e1c9cb25f1e543bbbe5ec37a0958cbd3
YES - spacing would be a problem at 5kHz cross over frequency! And the Dayton fabric 2" has some hickups (at least the older version) around 2,5-3kHz as far as I remember).
There is a simple solution - LOW crossover to the tweeter. For e.g. take a Bliesma T25S or the small Frontplate ScanSpeak Versions and cross over at 2kHz or even lower.
And yes, that's done and proven.
This is with the alu version of the Dayton 2". I started this with a seas 3/4" tweeter but it didn't had enough output - sound was very good.
Also works with 2 2,5" Midranges ;-)
But after many years of listening and trying I prefer only using one midrange for a more "point like" source. I'm also sitting pretty close to the speaker.
So the next (and last?) version will be with Bliesma 3".
You can put both fabric dome in series and short it with a paralell cap for smooth transmission of one to the other , while hearing/testing use a remote switch to select which one is better , the upper or the lower one , nor both!
please report your findings , thanks!
please report your findings , thanks!
And then with just 2 octaves of passband for the domes, you have what I often refer to as a Pokie…….the clarity of domes poking an otherwise phase congested presentation……good for monitoring but not much else. The Philharmonic from Murphy was just that type of system…..garnered a lot of industry favor but not much commercial success.
This is of course my ‘personal’ listening experience of course……..but when you listen for a living outside of subjective review types, folks tend to not pay much attention……..quite a few audiophools out there who are openly critical of the works of some the best engineers in music history. Unprofessional jealousy………wash, rinse, repeat.
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Well , but what is the ultimate goal in building speakers?
Maximum sharp , precise phantom sources over all angles and whole spectrum !!! (in-room! use third octave band pink noise - TOBPN)
Indoor Listening of course , but what are best conditions?
Putting the speakers on the shorter room side is the most common error , see hifi-shows , tons of evidence for ignorant people blinded by shiny equipment and shivering over realizing prices beyond their economic horizon!
bling-bling, buy me or turn to dust 🙂
ps .. fix the room first ...
Maximum sharp , precise phantom sources over all angles and whole spectrum !!! (in-room! use third octave band pink noise - TOBPN)
Indoor Listening of course , but what are best conditions?
Putting the speakers on the shorter room side is the most common error , see hifi-shows , tons of evidence for ignorant people blinded by shiny equipment and shivering over realizing prices beyond their economic horizon!
bling-bling, buy me or turn to dust 🙂
ps .. fix the room first ...
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Did that already. I prefer the upper dome only.
Like I said with both domes you get some vertical "dimension" of your sound source. With only one midrange it get's pinpoint, close to a coax (Like 87,2% coax 😎).
In a reverb sauce room that's probably hard to hear and not your main problem but as you say - fix your room first 🤓
For my listening situation the tweeter is a little low - so I prefer the upper dome cause it shifts the source point a little higher.
With active crossover and finely set up delay between the drivers I don't have this impression at all. It's very detailed and natural - when a strongly dampened room can be natural for you. Come for a visit and give it a listen when you are in Central Europe 🤓. These are as always just opinions ...
Of course I tried room calibration software and phase linearisations. While room calibration from Sonarworks was not really a step forward I liked their phase linearisation - but it was more a "good feeling" as a huge difference.
Next speaker version will be build with the new Hypex DSPs and they allow phase correction/FIR filtering. I will do some trials with that.
Did you test Neumann KH120ii or KH150? KH120ii have incredibly precise and wide stage representation, way improved over the old one.
I bet most audiophiles never heard precise phantom sources - it's not possible at 4m distance in an untreated room. But also many seem to not care that much and like an "ambient"/"immersive" presentation for relaxed music listening.
WE MUST KILL THE PROS WITH OUR NATURAL FLEXIBILITY !!!
kill with competence - but just their money-driven illusionz!
money is a slaving tool of the overly rich ones .. they can't stop slaving us until we find a method to put them in sleep having a nice endless digital dream 🙂
kill with competence - but just their money-driven illusionz!
money is a slaving tool of the overly rich ones .. they can't stop slaving us until we find a method to put them in sleep having a nice endless digital dream 🙂
Most Pros will drop dead if they listen to their own speakers in an ordinary untreated room on this supercritical track :
Get the original or use a copy , and additional give it a listen outdoors (suppressed floor reflection) , it's shocking!
Let's go back to the 9ties and start all over again 🙂
Scotty give us a break!
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