Ported TWEETER?! (No, this isn't clickbait.)

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[ErinsAudioCorner]

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[IliyaOsnovikov]

I believe that a waveguige would not only boost the low end response but also would narrow a tweeter radiation pattern in order to better match it off-axis with a midrange/midwoofer.

[AbsoluteFidelity]

We need more designs like this that solve problems instead of creating some. Bravo to Alex, hope he perfects it!

[falxonPSN]

I definitely would like to see more interesting innovations like this. This is pretty damn cool!

[j]

Glad you mentioned headroom, cause I was thinking it was a good fit for the headroom you need for actual music, which tilts down

[ActuallySettle]

Like many great ideas it seems incredibly obvious in retrospect.

One wonders if it could be combined with a waveguide. Fun to think about.

[pike]

Japanese manufacturers from the 1970s-1980s I wish you would measure…diatone, victor, onkyo, technics, Sony, these may be some of the best ever produced and are slept on. I’d be very curious what someone with your expertise figured out with these speakers.

[MIKEDIAMONDZ]

I like the way you build speakera and you tune them to a specify request ...solving the car problem in this episode was good. If you can make the a video about how to make a good cabinet, and where to get good drivers for it

[tonfeile]

Wow, great idea and really well tuned for a prototype. Looks like a ScanSpeak. Is it possible that the THD difference at 7kHz is caused by the lambda/2 port reso?
The video is already two years old, but I haven't heard anything about a market-ready product. That would be sad.
Many thanks for the video and greetings from Bavaria

[RennieAsh]

It seems that Morduant Short may have used some sort of "ported" tweeter arrangement on their Mezzo speakers or around that time. "Aspirated" I think they call it. Different goal perhaps.

[TadghsMuffins]

Yo idk about anyone else but this video is of huge interest for me, I design speakers a lot and spend a lot of time playing with designs that rely on really low xo - I'd buy a prototype to use if he let me :D

[danielduesentriebjunior]

Electro Voice used ported midrange drivers in the 1980's in the Interface Gamma and Delta models.

[derekjarman]

What a cool idea - especially for the car 👍👍

[FOH]

Most any resonant alignment, brings untidy time domain challenges, right?

It's the classic conundrum right? One always has to weigh;
elevated output at a given distortion level
vs;
less than ideal time domain performance

Down in the LF, the same challenges exist. But in use, the subjective hit is lessened perceptually in the lower octaves.

The question would be, what does the listener experience when those resonant behaviors are placed right into the mid-band octaves?

The attributes are always welcome (headroom, etc.), but how would those time based issues impact the playback?
Smear sounstage details?
Shift image fore or aft?

Dipole aside, it would seem the direction tweeter/loudspeaker designers have settled upon pursuing is a sealed, controlled dissipation of backwave energy, many into a tapered tube like approach.

Erin thanks for bringing this to our attention, very cool... always thought provoking solid work.

(this illustrates how driver/loudspeaker design is a pure balance of compromises, an ever fascinating multi-disciplinary pursuit... one can't simply bulldoze forward with money following a single best approach)

[MyTgangsta]

Nice reading the patent didn't really show much but I got what he's doing know for me to experiment on some tweeters and see if I can make them play lower with my add on idea so wish me luck

[redrobbosworkshop]

Interesting design. I've long felt that most conventional tweeters are not properly capable of crossing to typical 5-8" mid woofers because they just aren't great running at a low crossover point. Love your work btw and followed since day 1. Just subscribed on Patreon.

[arvidbjerre]

Great video as always, thanks Erin! Interesting choice to port a tweeter. But I don’t understand how extending the low end response of a dynamic driver with the help of a resonating air volume and a port is something that can be granted a patent.

[jked]

My understanding is that the reason tweeters are not ported is because of the phase issues. Also the sudden shift in phase at the ports would probably cause clarity issues in the frequency area of the port. At the extreme low Frequency of a ported woofer with the long wavelengths, the loss in clarity is not as noticable. But even non-ported woofers sound cleaner, maybe less low bass but clearer.

[vesalaasanen]

I really enjoy this type of content! Also would love to see more affiliate links towards us on the other side of the pond. Maybe Thomann?

[diymaster]

If you are still doing driver reviews would you be willing to review the very famous tangband w5 subwoofer ?