AsciLab F6B Bookshelf Speaker Review

[mosco]

I'm asking for some advice. If you were going to use them in a closed room measuring 4 by 4 meters, along with two sealed SVS 1000s, would this model be sufficient, or would I find a significant improvement by waiting for the Ascilab A6b to become available?

 

[Grotti]

Don't forget Amphion Argon 3s, which is in the same construction ideaform. And very expensive !

It is so expensive because the distributor and your local shop also want their margins. This is the beauty of a manufacturer selling directly to the customers....

 

[BeeKay]

It is so expensive because the distributor and your local shop also want their margins. This is the beauty of a manufacturer selling directly to the customers....

So do Buchardt and they produce in Asia. Still they are more expensive.

 

[Oboreal]

Sierra is not that far yes. A little bit more extend in bass, but a little more distorsion too, and a huge dispersion différence.

 

[thewas]

These Ascilab speakers are pretty comparable to the Ascend Sierra 1-v2 I think. They look pretty similar (even wider horizontal dispersion) and look gorgeous (in walnut).

Ascend Sierra-1 V2 Speaker Review

This is a review, listening tests, EQ and detailed measurements of the Ascend Acoustics Sierra-1 V2 bookshelf speaker. It is on kind loan from a member and costs US $998 for a pair ($948 on sale). The finish is nice enough. The cabinet feels quite heavy for its size and especially in the front...

www.audiosciencereview.com

Not really in my view, the Ascilab models have a quite high directivity while the Sierra is rather a wide radiating design, ignore the bass region as the F6B spin isn't available yet at spinorama.org so I used the FB6s instead:

Design-wise (sb acoustics, PR, box size, wave guide, quality xover) it’s comparable to Buchardt’s 400 line which again is more expensive and(!) measures worse.

Exactly, much smoother directivity transition between 800 and 1500 Hz:

 

[Videoteque73]

I think a pair of these speakers driven by the brand new Eversolo play and a subwoofer could be fantastic home system! @amirm do you have an Eversolo play for review??

 

[Settembrini]

Thanks for your kind words.
Yes. Thanks to ASR we can compete with big brands.

But there is an opinion that I don’t agree.
The waveguide we designed is not like usual waveguides. Usually most of waveguide is axis symmetry circle waveguide while we use different shapes by angles. You can see the different curves in the surface.

The main purpose of that shape is to put square in circle. The different curve at 45 deg can hides the corner edge diffraction. This is important to get smooth and constant directivity around 2~4kHz. If you use simple circle waveguide with same dimension, you can see easily diffraction around 2~4kHz.

Additionally, deep waveguide like ours usually makes throat diffraction occurring messy high frequency above 8kHz. The throat design with optimized phase plug makes wide dispersion without messy error in top frequency.

As the waveguide is top notch design that we put a lot of efforts, I wanted to explain what is different and better.

any chance you will have retailers in the EU anytime soon?

 

[beagleman]

I'm just happy to see the compliments on C and F series.

Nobody believed it was this freaking good when there was no reviews but it's here and real


I'm thrilled this is just their first and conservative approach on loudspeaker.
There should be so much more exotic designs stuck in CAD files I can almost sense it.

I have to imagine what a small tower version could do with multiple woofers!

 

[AsciLab]

any chance you will have retailers in the EU anytime soon?

We are currently discussing a dealer agreement with a company in the EU.

 

[crappypanther]

wow, amazing..

 

[beagleman]

I would expect a bit more bass with a passive radiator, but what is there is very clean neutral (and you can add a sub if needed). I'm still not a fan of the styling, just like the other one. I would not put it in my home for that.

But it's great that speakers of that priceclass also are getting that neutral. This could be a good budget studio monitor, better than most in that priceclass. And that without esotheric or proprietary parts, the drivers are off the shelf (at least it looks like that) and the waveguide is very much like many diy-ers already make and use. I could make it myself if i had the plans because it's not that complicated. But on ASR merits, it plays with the big boys; just by good engineering based on science. And that is a very good evolution.

I think the measurements do not truly do justice to the actual in room bass you will get. With normal room gain, I suspect they go a good bit lower than the actual measurements show.
Although they appear to roll off around 70hz or so, I think you would more likely get decent bass to possibly 40ish Hz or so.

 

[AsciLab]

For who wonders about our F6B crossover.
There is a lot of air core coils and PP Caps.
Elec cap is used for woofer.

 

[Matias]

Again, amazing speaker. AsciLab is on fire!

 

[milosz]

See the internal cable size. Inside the amps, the story is more or less the same in most case. Yet people would use snakes to connect from the speaker to the amp funny thing is the actual voice coil itself and the leads to the crossover components are always around 1 mm. Yet the some snakes are even 10mm think!

Well, the wires inside the cabinet are only a few inches long, while cabling from the amplifier to the speaker may be 30 feet or more ... that distance makes a difference. Using 14 ga or 12 ga wire makes sense at these distances, the lower resistance helps the amplifier's damping factor keep the woofer under better control.

For example, 1 foot of 22 ga copper wire has 0.0165 ohms resistance, this might represent the internal wiring.

But if you used the same 22 ga wire to connect to an amplifier 20 feet away, now you are putting 0.33 ohms in series with the speaker. Using 12 ga wire for that same 20 foot length would be 0.033 ohms, TEN times lower resistance. So there is a technical reason to use heavier gauge wire to connect a speaker.

And 12 ga wire is pretty cheap- a 50 ft roll of it from Parts Express is $15.00 so we are not talking about anything fancy or huge in terms of cost or physical size.

If you wanted to go crazy, you could get 4/0 ( 0000 ga ) cable from Amazon at $10.49 per foot. 20 feet of 4/0 cable has a resistance of 0.001 ohms.... 30 times lower resistance than the 12 ga wire, but overkill really- $840 vs $15. (The $10.49 per foot cost is a single conductor, and you need TWO wires between each speaker and the amp, so a total of four 20 foot lengths.) It would certainly look impressive. And there are people out there who pay $15,000 for speaker wire....

 

[Matt_Holland]

Thanks for the review Amir. Congratulations @AsciLab on another review success and proof of your engineering excellence.

I’m starting to get used to the model making nomenclature. Please tell us, will it be ‘T’ for the 3-way Tower models which will be coming in the future?

Imagine an F6T which is like F6B (same cabinet width) but with two or three dedicated bass drivers crossing at 300-400Hz to kill baffle loss and floor bounce cancellation. Priced under $1600 it would be absolutely killer. Logically we would also have C6T and S6T.

 

[AsciLab]

Thanks for the review Amir. Congratulations @AsciLab on another review success and proof of your engineering excellence.

I’m starting to get used to the model making nomenclature. Please tell us, will it be ‘T’ for the 3-way Tower models which will be coming in the future?

Imagine an F6T which is like F6B (same cabinet width) but with two or three dedicated bass drivers crossing at 300-400Hz to kill baffle loss and floor bounce cancellation. Priced under $1600 it would be absolutely killer. Logically we would also have C6T and S6T.

We are also planning tower models for each speaker line.
Additionally, we are preparing an expansion method using a modular bass stand.
The model naming will follow a format similar to the one you mentioned.

 

[Noob]

Full round of applause.

I've been pouring over all the available data online about this line of products the past few days, and for a company that has just launched, this is by far the most impressive start I have ever seen from an audio company of any kind. Knowing that things should only be improving from this point forward makes me very optimistic for the future of audio.

The price-to-performance with these products is simply amazing.

 

[Koeitje]

These Ascilab speakers are pretty comparable to the Ascend Sierra 1-v2 I think. They look pretty similar (even wider horizontal dispersion) and look gorgeous (in walnut).

Ascend Sierra-1 V2 Speaker Review

This is a review, listening tests, EQ and detailed measurements of the Ascend Acoustics Sierra-1 V2 bookshelf speaker. It is on kind loan from a member and costs US $998 for a pair ($948 on sale). The finish is nice enough. The cabinet feels quite heavy for its size and especially in the front...

www.audiosciencereview.com

But looks like Ascilab will have better EU distribution.

 

[daniboun]

We are currently discussing a dealer agreement with a company in the EU.

Top) keep us posted. Why not share it with everyone via Amazon?

 

[Esprit]

We are also planning tower models for each speaker line.

On the Korean forum I see that you are a volcano with a thousand ideas and a thousand projects, which is admirable, but at the same time, as I had already written in another discussion, this continuous search for new versions and variants for the end user can be a problem, because either they buy an already old product or always wait for the new one. Now you are an excellent craftsman, but selling all over the world you have to become an industry.