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The S6B tweeter hast better compression, someone would say better dynamics. So better If you want to Play over 90 db.
The radiation is more than a little wider, its rare this controlled also.
Higher Price and red color also maybe? :D
Yea im just wondering that what kind of room/distance is that 120-140degree radiation useful? In normal reflective room i probably would argue that A6B sounds more balanced and with better image than S6B bcouse of the reverberated sound in listening position is much greater with s6b. S6B would work better at closer distances maybe and large rooms. Measurements look fantastic tho and probably 2 way bookshelf cant get much better than s6b :D
 
How would the S6B perform nearfield (~1m)? The horizontal and vertical dispersion looks good but what about driver integration?
 
How would the S6B perform nearfield (~1m)? The horizontal and vertical dispersion looks good but what about driver integration?
Symmetry vertical dispersion means well aligned phase each other drivers.
 
Ascilab uploaded the compression data of the S9B on the Korean thread, I'm not entirely sure this is the same input signal but here we go.

The S6B tweeter performs superbly compared to the A6B tweeter; that 0.5 dB of compression that the smaller SB Acoustics tweeter showed around 1000 Hz is entirely gone. I'll also note that the S6B radiates a fair bit wider than the A6B across all the range covered by the tweeter, therefore it is effectively outputting more acoustic energy when both are measured at 95 dB on axis.

The bass tuning with a slight slope starting from 80 Hz leading to a higher frequency -3 dB and the new passive radiators also seems to lead to a better compression behaviour in the bass range. IMHO, the sub 80 Hz slope is a good decision for most situations a bookshelf is suited for.

Compression of Transfer Function H(f) - AsciLab A6B.png

d0bcfcc4b65051c1858b4a816679aab47ae9cba7.png
 
Symmetry vertical dispersion means well aligned phase each other drivers.
Thanks. The question I was attempting to ask was how the speaker performed in the nearfield, specifically whether the drivers integrated at short distances.
 
Thanks. The question I was attempting to ask was how the speaker performed in the nearfield, specifically whether the drivers integrated at short distances.
Considering the crossover frequency and the center to center distance of the drivers, better than than anything that isn't a coaxial.
 
Ascilab uploaded the compression data of the S9B on the Korean thread, I'm not entirely sure this is the same input signal but here we go.

The S6B tweeter performs superbly compared to the A6B tweeter; that 0.5 dB of compression that the smaller SB Acoustics tweeter showed around 1000 Hz is entirely gone. I'll also note that the S6B radiates a fair bit wider than the A6B across all the range covered by the tweeter, therefore it is effectively outputting more acoustic energy when both are measured at 95 dB on axis.

The bass tuning with a slight slope starting from 80 Hz leading to a higher frequency -3 dB and the new passive radiators also seems to lead to a better compression behaviour in the bass range. IMHO, the sub 80 Hz slope is a good decision for most situations a bookshelf is suited for.

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I doubt the better compression values are worth the Money more, i Guss they will be a Lot more expensive right? I mean -0,5db at 1khz vs. -0,25db at a 95db Level...
I think the S6B is only worth it for the wider radiation, If you need it, beside the little better Bass Extension because of the enormus 8" passives.
It also tells that the A6B is very excellent already but Like it should, because its also not cheap.
EDIT: Erins compression Data Looks a bit different for the C6B, If the tweeter is exact the Same in the A6B, the values Looks different, special at 102db, at this Volume the S6B will make Sense too.
Of course, perfection comes at its price ;)
 
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I doubt the better compression values are worth the Money more, i Guss they will be a Lot more expensive right? I mean -0,5db at 1khz vs. -0,25db at a 95db Level...
I think the S6B is only worth it for the wider radiation, If you need it, beside the little better Bass Extension because of the enormus 8" passives.
It also tells that the A6B is very excellent already but Like it should, because its also not cheap.
EDIT: Erins compression Data Looks a bit different for the C6B, If the tweeter is exact the Same in the A6B, the values Looks different, special at 102db, at this Volume the S6B will make Sense too.
Of course, perfection comes at its price ;)
Sometimes, we like performance for performance's sake, like it doesn't matter if a DAC achieves 110 dB SINAD or 120 dB SINAD, both are much more beyond the threshold of audibility than this.

Having said that, the absolute lack of compression at 95 dB suggest the S6B should be able to play louder, the A6B clearly is at its limits at 102 dB, the S6B might have some more headroom.

As for Erin's measurements vs Ascilab, we don't know if the test signals and test conditions were identical.
 
@AsciLab

If the pre-order period (eg. 30 days) generates so much demand that you can't keep, then that alienates the customer. Customers today in Western liberal democracies are an impatient lot. Remember that they are used to the 'order today- delivered tomorrow' from the likes of Amazon Prime.

To ensure your supply can keep up with the demand, please consider the following options-

1a) The free shipping period has now ended. Thank you to all of our supporters in the first year of AsciLab.

The all inclusive price is a great sales strategy, except it it blows demand out of the water. And all your customers know, there is no such thing as "free shipping". Somewhere, someone, is getting paid.

1b) Also consider your manufacturing focus on your most profitable models & best selling models, delay the release of better models. This will allow you to re-invest the cash flow into R&D of future models. Customers will understand this because they don't want you to go belly up. And don't release your best models at the same time as lesser model- stagger the releases to avoid product cannibalization or product.

1c) Any colour the customers want, as long as it's black (or white). Focus on one colour for now...
And upsell - extra charge for other (or custom colours)

Leave them wanting...
 
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@AsciLab

If the pre-order period (eg. 30 days) generates so much demand that you can't keep, then that alienates the customer. Customers today in Western liberal democracies are an impatient lot. Remember that they are used to the 'order today- delivered tomorrow' from the likes of Amazon Prime.

To ensure your supply can keep up with the demand, please consider the following options-

1a) The free shipping period has now ended. Thank you to all of our supporters in the first year of AsciLab.

The all inclusive price is a great sales strategy, except it it blows demand out of the water. And all your customers know, there is no such thing as "free shipping". Somewhere, someone, is getting paid.

1b) Also consider your manufacturing focus on your most profitable models & best selling models, delay the release of better models. This will allow you to re-invest the cash flow into R&D of future models. Customers will understand this because they don't want you to go belly up. And don't release your best models at the same time as lesser model- stagger the releases to avoid product cannibalization or product.

1c) Any colour the customers want, as long as it's black (or white). Focus on one colour for now...
And upsell - extra charge for other (or custom colours)

Leave them wanting...
1d) Don't teach your grandmother how to suck eggs.
 
@AsciLab

If the pre-order period (eg. 30 days) generates so much demand that you can't keep, then that alienates the customer. Customers today in Western liberal democracies are an impatient lot. Remember that they are used to the 'order today- delivered tomorrow' from the likes of Amazon Prime.

To ensure your supply can keep up with the demand, please consider the following options-

1a) The free shipping period has now ended. Thank you to all of our supporters in the first year of AsciLab.

The all inclusive price is a great sales strategy, except it it blows demand out of the water. And all your customers know, there is no such thing as "free shipping". Somewhere, someone, is getting paid.

1b) Also consider your manufacturing focus on your most profitable models & best selling models, delay the release of better models. This will allow you to re-invest the cash flow into R&D of future models. Customers will understand this because they don't want you to go belly up. And don't release your best models at the same time as lesser model- stagger the releases to avoid product cannibalization or product.

1c) Any colour the customers want, as long as it's black (or white). Focus on one colour for now...
And upsell - extra charge for other (or custom colours)

Leave them wanting...
Sure waiting sucks, but I can understand they are a small company who didnt expect their speakers to take off so fast and that was mostly just from ASR. A small company suddenly having to try juggle increasing their production capacity to keep up with the unexpected demand, global logistics and distribution agreements (Audiophonics, Purite Audio, Tested Audio etc), AND the continued development of all their other products.

So I can give them a lot of latitude in the wait times, while they are still finding their feet. I am waiting for my own pre-order and when their products cannot really be beaten for the price, I feel the wait is well more than worth it.

There is nothing wrong with people having to try learn some patience :P
 
I doubt the better compression values are worth the Money more, i Guss they will be a Lot more expensive right? I mean -0,5db at 1khz vs. -0,25db at a 95db Level...
I think the S6B is only worth it for the wider radiation, If you need it, beside the little better Bass Extension because of the enormus 8" passives.
It also tells that the A6B is very excellent already but Like it should, because its also not cheap.
EDIT: Erins compression Data Looks a bit different for the C6B, If the tweeter is exact the Same in the A6B, the values Looks different, special at 102db, at this Volume the S6B will make Sense too.
Of course, perfection comes at its price ;)
I guess the question I would have to ask is how often, playing music, is any tweeter going to need to reproduce a 10 khz tone or higher at or above 102 db--especially considering those frequencies consist almost entirely of harmonics?
 
I guess the question I would have to ask is how often, playing music, is any tweeter going to need to reproduce a 10 khz tone or higher at or above 102 db--especially considering those frequencies consist almost entirely of harmonics?
If I recall correctly, the both Erin and Ascilab use a multitone signal that is similar to pink noise in terms power spectrum for compression testing. So, when Erin tests at 102 dB, there tweeter is never playing a 10 kHz signal at 102 dB, it's the sum of all the frequency content of multi-tone signal that is played at 102 dB.
 
If I recall correctly, the both Erin and Ascilab use a multitone signal that is similar to pink noise in terms power spectrum for compression testing. So, when Erin tests at 102 dB, there tweeter is never playing a 10 kHz signal at 102 dB, it's the sum of all the frequency content of multi-tone signal that is played at 102 dB.
Whether it;s comprised of a single tone, and overtone, or a multitone, how often is any tweeter in a real world use (playing music) going to have to play anything at 102 db?
 
Ascilab have today posted some directivity plots of the upcoming C8T on their new Facebook group:

We’re currently refining the crossover, so final frequency response and full measurement data will take a little more time.
In the meantime, here’s an early look at the horizontal and vertical contour plots.
Directivity remains tightly controlled down to around 200Hz, delivering a stable and focused sound field even in the lower midrange.
Vertical dispersion is also exceptionally well-managed, allowing you to position your listening height freely — whether on a sofa, chair, or any typical seating environment — without losing tonal balance or precision.
More measurement results coming soon as we get closer to the final tuning! Stay tuned.
#ascilab #c8t #hifi #loudspeaker


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Very impressive for a passive speaker.
 
Hey @AsciLab ,

After playing with the idea of opening a 'no bullshit' audio store for several years - similar to the concepts of @amirm with Tested Audio and Keith with @Purité Audio - the plans for this are now becoming increasingly concrete.

Of all the potential portfolio elements, whether electronics, speakers, or accessories, you guys are my number one candidate. Since I am based in southern Germany and am primarily planning a solution- and service-oriented business without an (official) online shop, the concept would not compete with the aforementioned partners or Audiophonics as an online store for Europe.

Therefore, the question is: What do I need to do to make this happen?



More or less independently of that, I would like to upgrade my existing home theater with 3x C8C (LCR) plus 2x Bass Extension (LR) and 4x F6BS (2x SR and 2x SRB). Is there any possibility of receiving a bundle offer for this?

thanks in advance,
Times
 
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