Compression drivers?

[Arstein]

My new drivers

I think compression drivers will eventualy become the standard. all disadvantages can nowadays be cured with DSP

I allready made the step, and even though mine is not as high-tech as the one in the video, I wont go back to dome. everyday I hear something from those speakers that just makes me think "I dind't know this could come out of a speaker". sometimes a song has a mechanical sounding percussive instrument and for a second I get worried the speaker is broken, only to realize it's in the recording. I heard the shuttle launch recording from that Destin guy on Youtube and those cracking sounds the shuttle makes where so powerfull I again was afraid the speaker would break, only to realize that it is totaly fine reporducing this. a dome speaker feels like a 1 liter car now. most of the time it get's the job done, but sometimes you just feel it's limit

 

[hex168]

A bunch of waveguides, tested. Surprisingly few are good.

MTG Designs - Waveguide Shootout

Objective Tests / Measurements of Various Horns and Waveguides This project was started in 2013, then nearly abandoned for several years and finally restarted last year (2021). The idea is to test and provide various measurements on a wide range of waveguide and horn designs making it easier to

www.mtg-designs.com

 

[DanielT]

A bunch of waveguides, tested. Surprisingly few are good.

MTG Designs - Waveguide Shootout

Objective Tests / Measurements of Various Horns and Waveguides This project was started in 2013, then nearly abandoned for several years and finally restarted last year (2021). The idea is to test and provide various measurements on a wide range of waveguide and horn designs making it easier to

www.mtg-designs.com

Would you look at that. That was interesting.

This combination, if one finds a suitable bass element, could perhaps be something:

MTG Designs - Denovo DW-7ES

Manufacturers Info Brand: Celestion Model: H1SC-8050 Style: Exponential Coverage (H x V): 80 x 50 Minimum Frequency: 900 Hz Throat: 1" Mounting Type: 1-3/8"-18 TPI Dimensions: 7" W x 7" H x 3.6" D

www.mtg-designs.com

Compression driver Celestion CDX1-1731, 8 ohm, gorge 1 pouce

1" exit, neodymium magnet compression driver with 1.75" edgewound copper clad aluminium voice coil 75Wrms (AES standard) power handling and 110dB sensitivity Designed with Sound CastleTM clamping to ensure uniform pressure on diaphragm assembly for reduced acoustic distortion One piece PETP film...

en.toutlehautparleur.com

Maybe together with this 8 inch bass driver, which is used in this kit:

Momo

Momo,Monacor,img SP-8/150PRO, DT-300, WG-300,Lautsprecher,Audio,Hifi

www.lautsprechershop.de

MONACOR: Products

Compact PA bass speaker, subwoofer, 150 W, 8 Ω 20 cm (8

www.monacor.com

Edit:
But on the other hand if the crossover was is at 2kHz why, when you can buy this for $23?

Home

Peerless by Tymphany BC25TG15-04 1" Silk Dome TweeterDesigned by Tymphany's experienced team of engineers, the BC25TG15-04 1" dome tweeter can meet the most demanding requirements for audio excellence. The tweeter features a textile diaphragm, high-energy ceramic ferrite magnet, and sculpted...

www.parts-express.com

Peerless BC25TG15-04 | HiFiCompass

hificompass.com

Just to show different options. Or if you have access to a 3 d printer, print a wavegudie and assemble it with:

SB Acoustics SB26ADC-C000-4 | HiFiCompass

The THD measurements at distance of 315 mm and voltage levels 2.83 - 8 Volt were carried out with High Pass Filter "on" (2nd order Buttreworth type, 500 Hz cutoff, HPF2-500). The THD measurements at distance of 315 mm and voltage level 11.2 Volt were carried out with High Pass Filter "on" (2nd...

hificompass.com

SB Acoustics SB26 | somasonus

www.somasonus.net

 

[peanuts2]

A bunch of waveguides, tested. Surprisingly few are good.

MTG Designs - Waveguide Shootout

Objective Tests / Measurements of Various Horns and Waveguides This project was started in 2013, then nearly abandoned for several years and finally restarted last year (2021). The idea is to test and provide various measurements on a wide range of waveguide and horn designs making it easier to

www.mtg-designs.com

several show narrowing between 1-2khz. yet he chose to measure with one compression driver only. yes the driver can effect the waveguide.

from a different site. same dayton h6512 with selenium d220ti:

with b&c de250 (more smoothing)

 

[MegaHerzz]

JBL's HDI series is one the most afordable ranges of domestic speakers with a compression driver.
The driver is not particularly stellar performer, since it starts to break-up massively before it's reached the top of the audio band and produces a bit too much distortion above 10kHz.

not sure where you get this data? subjectively I didn't hear that myself. actually that is one of the strengths for HDI to go out louder than other tweeters and doesn't suffer from sound compression etc... Just curious!

 

[tuga]

HDI-3600

HDI-3800

 

[Tom C]

Is there distortion data in those charts? I’m not able to find it.
Also, how important is distortion above 10k? The first harmonic is at 20k, and goes up from there. I don’t think I could hear it.

 

[tuga]

Is there distortion data in those charts? I’m not able to find it.
Also, how important is distortion above 10k? The first harmonic is at 20k, and goes up from there. I don’t think I could hear it.

The plots above show distortion in the frequency domain and in the time domain.

 

[Flaesh]

actually that is one of the strengths for HDI to go out louder than other tweeters and doesn't suffer from sound compression etc...

Also used in SCL

Compression drivers?

translation for 'warmduscher' would be "pussy", I guess on a sidenote: I live in the tropics and dusche warm lol

audiosciencereview.com

In conservative terminology, it's more of a tweeter than a driver. For such a small thing, I would like to see a high-frequency peak out of the audible range; but it may be not critical for real listening.

 

[DanielT]

This was really pretty!

Good job:
Joseph Crowe

https://www.audiosciencereview.com/forum/index.php?members/joseph-crowe.10477/

 

[Tom C]

You can’t get constant directivity full range with a 2-way speaker, unless you are looking at omni dispersion.
For constant narrow using compression drivers on horns you are looking at 4-way minimum.

Please, could you cite a real-life example?

 

[dasdoing]

how much sense makes it to have constant directivity below Schroeder? it's the midrange where all those crazy tiny cancelations apear on the unsmoothed graph

 

[tuga]

Please, could you cite a real-life example?

Something like the Cessaro Gamma

 

[tuga]

The Avantgarde Uno/Duo measurements below and on Stereophile show why so many ways are needed:

Avantgarde Acoustic Uno XD Messungen - FIDELITY online

Die Avantgarde Acoustic UNO XD glänzt im Messlabor durchweg mit beeindruckenden Messwerten, die den positiven Höreindruck massiv unterstreichen.

www.fidelity-online.de

 

[Nvk]

The Avantgarde Uno/Duo measurements below and on Stereophile show why so many ways are needed:

Avantgarde Acoustic Uno XD Messungen - FIDELITY online

Die Avantgarde Acoustic UNO XD glänzt im Messlabor durchweg mit beeindruckenden Messwerten, die den positiven Höreindruck massiv unterstreichen.

www.fidelity-online.de

Hi Tuga, I am delving heavily into a narrow directivity horn loudspeaker design. Could I ask you some questions? And if so, which platform do you prefer? (I noticed I couldn't send you a pm)

 

[dped90]

and the Radian 745NEO aluminum dome, which is something different.

Have you ever used this driver in a biradial horn? If yes, please describe your listening impression. And was it in a two way system?

 

[Flaesh]

I used a Radian 950PB with a 2380A horn. The frequency response without equalization was very similar to the 2380A datasheet IIRC. In a two-way system, about 666 Hz crossover. This was almost 15 years ago.