AsciLab speakers are about to launch

[lewdish]

Will there be active versions?

 

[Emlin]

Will there be active versions?

See above.

 

[p.trianon]

When will the alluceramic cone passive speakers be available? Is there a website up? Thnx

 

[Grotti]

When will the alluceramic cone passive speakers be available? Is there a website up? Thnx

Ascilab will post here, when their site is online and when their speakers are available and where.

 

[ascilab]

We are currently producing the P6B and A6B passive networks. The P6B model was sold in only a limited quantity in South Korea.

 

[JohnnyNG]

We are currently producing the P6B and A6B passive networks. The P6B model was sold in only a limited quantity in South Korea.

I don't know much about crossover construction but those don't look cheap! Are those heatsinks?

 

[Salt]

Looks like high power resistors.

 

[yuusha]

Thanks to living in the country of Ascilab, I had the opportunity to visit their laboratory before the official release of their A6B C6B C5B speakers. I would like to share my impressions.
As a graduate student, I am accustomed to making claims based on objective evidence; however, my major is unrelated to acoustics. Therefore, my experience with the speakers may not be based on scientific grounds. I also lack extensive experience listening to well-designed speakers in a properly constructed listening room.

Ascilab's listening room (Silo) is located in the basement of a building in Seoul.

The space measures approximately 5 meters by 7 meters, and the distance between the seating area and the speakers is about 3 meters (measured using an iPhone). From this prepared seating position, I varied the volume between 60 dB and 96 dB, listening to the following reference tracks for comparison:

• Song1: Candide Overture
• Song2: Just squeeze me
• Song3: Satin doll
• Song4: Dear my fairy

Quantitative Comparison:

This graph represents the in-room frequency response measurements provided by Ascilab.

Qualitative Comparison:

The first one I heard is the A6B (active). It was, in fact, astonishing.
The feeling of the drum's bass and other instruments playing together at low volume remained consistent, even when the volume was increased at approximately 90 dB and the distance extended to over 4 meters. Additionally, even during the rapid orchestral performance in the last 30 seconds of "Candide Overture," there was no muddling of sound, and it was well-represented, akin to a three-way speaker.

Next, C6B (passive). At low volume, it was actually hard to hear much difference at a distance of about 3 meters.
However, as I turned up the volume and got closer to the speaker, I noticed that the bass felt different from the A6B. This feeling was actually more familiar to me, probably because I have less experience listening to speakers with very low distortion, but I'm not sure I'd be able to tell the difference if I were to ABX test both speakers at moderate volume...

Unfortunately, I was unable to listen to the mint C5B, as it was placed on their Klippel NFS system.

While playing music, I moved around the room attempting to identify any areas where the sound attenuation seemed awkward, but I could not find any. I anticipate placing the speakers at a very close distance (60 cm) when I receive them, so I faced the baffle and turned my head back and forth, searching for any awkward response areas, but none were detected.
(@ascilab explained that the center-to-center design of the two units was optimized to eliminate nulls, though I did not fully understand the principle.)

About Enclosure Finish:

Those who viewed Ascilab's beta version speakers before me, raised concerns about the visibility of joints (glued line) on black speakers. In response, Ascilab stated that they would add painting and clear coating processes for black enclosures. In the photos I uploaded, the upper square panels represent this new black finish. The four pieces were joined in a cross shape(+), but no traces were visible. Although I purchased the A6B in mint color as an early bird buyer, I was tempted to change to black.

Lastly, someone seemed interested in the speaker spike structure, so I took a photo of the separated components.

 

[AudioJester]

Thanks @yuusha ! Love visiting this thread.

The measurements look like what we see real world in our homes. Iam very much an audio amateur, but looking at those in room measurements the first thing that strikes me is the 150-300Hz response, looks like floor/ceiling bounce? Would treatment help?

 

[yuusha]

Thanks @yuusha ! Love visiting this thread.

The measurements look like what we see real world in our homes. Iam very much an audio amateur, but looking at those in room measurements the first thing that strikes me is the 150-300Hz response, looks like floor/ceiling bounce? Would treatment help?

It would be advisable to inquire with Ascilab regarding the graph. However, based on the information I received, it appears that the FRs measured are not corrected but rather adjusted only to address minor dips and peaks.

I hope these speakers will be released not only in Korea but also in various countries soon. It seems that the designers are more focused on creating speakers as a hobby rather than on profitability.

 

[AudioJester]

Did you listen to the beasts in the back of the room?

 

[yuusha]

Did you listen to the beasts in the back of the room?

I never got to hear that speaker, sadly.

 

[Reddoc]

the beasts in the back of the room

What are they and are they active and can I have a pair please?

 

[ascilab]

What are they and are they active and can I have a pair please?

This speaker is custom-made based on consumer requests. It features a combination of Bliesma tweeters and mid dome, with Purifi mids for the upper range with a Hypex plate amp, while the lower range is handled by three Seas L26 Roy drivers with a Hypex plate amp. The high and mid provides wide dispersion, and the low frequencies are managed with cardioid implementation to correct room response characteristics in the bass range.

 

[ascilab]

When will the alluceramic cone passive speakers be available? Is there a website up? Thnx

We are investing time in producing the initial batch for the Korean launch, so the website opening is delayed from the original schedule. The official website is expected to open by September at the latest, and sales should be possible by then.

 

[Reddoc]

This speaker is custom-made based on consumer requests. It features a combination of Bliesma tweeters and mid dome, with Purifi mids for the upper range with a Hypex plate amp, while the lower range is handled by three Seas L26 Roy drivers with a Hypex plate amp. The high and mid provides wide dispersion, and the low frequencies are managed with cardioid implementation to correct room response characteristics in the bass range.

Is this the 3-way design that you are considering to produce at scale, ascilab?

 

[ascilab]

Is this the 3-way design that you are considering to produce at scale, ascilab?

Although it's challenging at the moment, we do plan to release a similar concept in the future. We are looking forward to the Purifi tweeter.

 

[Reddoc]

We are looking forward to the Purifi tweeter.

Yes, your agile, science-based approach and these advanced drivers would be a stunning match, I suspect.
Good luck, keep doing things your own way.
regards,

 

[JohnnyNG]

I guess it should be obvious but I can’t really tell; are the binding posts compatible with banana plugs?

 

[AudioJester]

Coming back to your bass module concept, are they the same unit for your passive and active speakers? That is can use same bass modules with A6B passive and active?
But only the active speakers will make them cardioid?
Trying to understand how it works.

Lots of us add subs etc. with small speakers. I wonder if there is a market for cardioid bass modules that can work with any bookshelf speaker? Would be quite a unique product integrating cardioid bass upto 300Hz with whatever speakers you have.