5 less known Tips about Speaker specs
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- Опубліковано 5 лют 2025
- 5 Tips on how to better interpret speaker data.
DIY Audio courses: audiojudgement...
Some aspects of this video have been inspired from Scott Hinson's paper: drive.google.c...
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Music Credits:
"Werq" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
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I appreciate your style very much. Pretty much my favorite DIYer on UA-cam
I've corresponded with Tang Band and they were prompt and helpful in responding. Thanks for another great video!
Excellent video. Very informative and well explained. 👍🔊😊🎶
Good informative video! I always watch for the SPL scale and smoothing, but wasn't aware manufacturers use different baffles and box sizes. I always assumed they all used an 'infinite' baffle. I'll keep this in mind next time I'm selecting drivers for a project.
Funny seeing you talk about Scanspeak drivers. In 98 or 99 I bought a woofer driver from them for a speaker I wanted to make, but never did. I still have it in my attic anf want to try to make a subwoofer with it. I'm not sure exactly which it is, but I remember it needed an absolutely immense box to go deep.
Use your attic as the box! This kind of thing, building speakers into the house structure, was done in the 1930s to 1950s when amplifiers were low-powered, 5 to 10 watts.
I wish I had watched this great video 2 weeks ago. I just bought two 10 inch woofers for an open baffle project. The Xmax is 6.5. I'm thinking about returning them.
Thanks Marius. Great advice!
I’ve subscribed to a class of yours and it’s great. Thanks so much.
What would be amazing is if you could possibly tell us how we can ‘ upgrade’ woofers in our current speakers.
Not how to build the xo, but to see if the cabinet we have can accommodate other woofers.
Instead of choosing drivers and then making a box around them, can we figure out if we have let’s say an MTM design with 6.5” woofers , what can we swap them out for, without the box not being able to accommodate them.
Thanks !
Great information , thanks.
Again straight to the point and clear. +++++
Great information. Thanks
Great advice ill remember for next build. Btw, i use your simple 2 tool tower build as a reference for i just happened to have purchased the same woofers some time ago.🤓
Very well made video. Thanks.
Xmax is important, but Xmech is also important imo. Unfortunately not many manufacturers provides this specification.
Also, you need to be careful when looking at the sensitivity. Depending on how they measure it can change drastically. If they use 1W instead of 2.83V of if they measure it at 0.5m instead of 1m can change the sensitivity by a considerable amount!
Maybe it is a topic for a separate Video, but the TS-parameters are very important for woofers and should be mentioned. It can tell a lot if that driver is usable for what you want to build or not.
The problem is that the woofer has to go into a listening environment, and that's what almost nobody covers. It's like Toyota telling you that their new sedan does 25mpg. Great, but I'm guessing with a full family of 4 inside, luggage, roof rack and a car that hasn't been serviced properly, the mpg will change!
Parameters/enclosure/listening environment/listening preferences = music - what type, movies or a compromise of the two. Again, it's 1,001 videos about the enclosure, none about what the enclosure is going into ... expect for this guy *Acoustic Engineering Workflow* Hexibase channel.
Like your style.
I like most comments. And I agree with the x-max comments but I wonder whether the 26W/8534G is a good example of a low x-max problem. Perhaps it’s more an alignment problem. It’s TSP would better suit a sealed box; say around 50L or less. The BR reflex box needs to be large like 100L with a low tuning. Two of them need even a larger box.
Great Video 😃
so good, thanks
great video - as ususal- I wonder if you can shed some light on the following issue: There are some speaker drivers (usualy the expensive once) that just tend to sound very clear fast more open and dynamic, as oppose to (cheaper drivers) that sound compressed and less "live" - can you point to the t/s parameters that "show" this capability of speed, clearity and dynemics. Thanks
One thing I can tell you that set's apart a higher end driver is the presence of a shorting ring in the motor structure. This reduces distortion and also it reduces Le. So, if it's not mentioned directly in the description, low Le is an indicator of a good speaker.
Nice video, as always, I was wondering if you can uncover some of the mysteries of determining the right volume of a box, and type, from the T/S driver parameters
*Acoustic Engineering Workflow* Hexibase channel. There's also a part 1 and part 2 on T/S parameters, as well as a video on counting acoustic orders; sealed, transmission line, ported, bandpass etc.
I've also seen xmax listed as one-way and as peak to peak
That's what I wanted to say, but I find it odd that it's rarely listed at all whether it's one way or p-p, or maybe that's just the drivers I'm looking at?
*Measuring Speaker Excursion* sparkedED channel - 5 min video will tell you all you need to know about the difference between xmax, xmech and excursion
As for his advice on xmax, here are some examples of why I don't agree.
Fostex FE103En (3.5" fullrange) FS 83hz, xmax 0.6mm ua-cam.com/video/-U3XW6TV9zI/v-deo.html (360P video) headphones on for the demo
Hybrid Audio I6SW 6.5" sub, FS 43hz (measured) xmax 6mm (one way) ua-cam.com/video/R_QUm97_kJk/v-deo.html
BTW, on the strength of the above video, I bought the Hybrid I6SW, and it replaced my DD Audio 12" sub.
Do any of these small drivers sound (measure) like they're struggling with bass, given what their perceive limited parameters are?
Many people develop ROT (rules of thumbs) or generalisations about t/s parameters and enclosures.
Correct me if I'm wrong, but some tweeter spec sheets feature a 2600Hz 1st order HPF following IEC268-5 standards. This would mean that if you want to use the minimum phase response (the one from the FRD graphs), you have to take into account this high-pass filter capacitor.
I thought 1st order filters do not mess with phase. But I could be completely wrong here
How can I measure XMax in my 6 1/2”? I am doing my first steps I. tS parameters measurements and I do not have any date from the manufacturer. Thank you!
What job are you doing?
Any audio related jobs?
Not really. I'm an accountant 😅
A well made speaker can have a lower xmax and sound better than a poorly designed speaker with a higher xmax.
*Xmax - here we go again!*
Fostex FE103En (3.5" fullrange) FS 83hz, *xmax 0.6mm* ua-cam.com/video/-U3XW6TV9zI/v-deo.html (360P video) headphones on for the demo
Hybrid Audio I6SW 6.5" sub, FS 43hz (measured) xmax 6mm (one way) ua-cam.com/video/R_QUm97_kJk/v-deo.html
BTW, on the strength of the above video, I bought the Hybrid I6SW, and it replaced my DD Audio 12" sub.
Do any of these small drivers sound (measure) like they're struggling with bass, given what their perceive limited parameters are?
tang band is notorious for fiddeling with parameters. ±20% is normal
Thanks for the video ;)
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