• Welcome to ASR. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

AsciLab speakers are about to launch

F6B.
Received today. Once dispatched, delivery was very quick and sooner than estimate. Departed AsciLab late Wednesday, arrived Friday morning, Korea to Australia.

Early impressions, very positive. Used without subs so far, 3.5x3.5x2.4m room (some treatment of makeshift insulation batts).
Speakers up against the wall, pretty much pointing to my head - "on axis". They're on stands, kinda high, with my ears a little below the tweeter.

Decided to put a 48db/Octave high pass at 33hz, as it seems from some low volume sine tones that they would only make kinda flappy unproductivity sounds if there were content lower than that (flappy sound perhaps mostly from the passive radiator).

I'm delighted, but I guess unsurprised that the mids and especially upper zone is so smooth, with slight down-tilt. I've always had to eq down higher freq with other speakers. I seem to prefer this - no treble boost, and slight downtilt. what a surprise. most recent previous speakers in here were JBL Studio S26 - which I reckon are pretty darn decent good oldies (and better than JBL Studio 630).

Orange is in room moving mic measurement, no eq with both speakers playing, at about 2m listening distance. (grey is a generic "harman"ish room target)
Above 700hz is stupendously lovely "looking". and sounds "right" and great as such.
I ended up adding 2 quick filters around 90hz and 150 hz, resulting in the green line. It is a small but good improvement.

(The dip around 60hz is almost certainly room related - has always been there with other speakers too, and ends up largely solved with a pair of old but good 8"x2 tower speakers that I put to use as "subs". and do well down to about 25hz.)

nice to do so little and have really nice tonality.

Sensitivity seems great actually - probably cause with other speakers, i've always had to eq-attenuate quite a bit to have them not be bright or have midrange annoyances.

Cool and amazing that one little tweeter does everything +1khz.
Looks likely that when i reintroduce them, the subs will be crossing at ~80hz.
Too early to really comment on any particular "imaging" illusions.


1759497193272.png


Related to earlier above post about tweeter QC (or not, as it were) - with umik-1 sweeps of each speaker, at about 87dB from 2m distance, the distortion showing in REW above 1khz is indeed very very low - where it's greyed out, does that mean it's basically below the noisefloor (brown colour)?? White line is THD.

Here's distortion of just one speaker ~87dB @2m. I don't have any real understanding of this, or how reliable it is with umik-1 in REW.

1759497719196.png


and why not, here's a spectogram, no eq, just the 33hz high pass, both speakers playing about 87dB-A/93dB-C.
1759498788899.png
 
Last edited:
Can you tell us, if the DSP will internly work with 48 kHz or will it work with 96 kHz or even 192 kHz?
Or can it even manage DXD (352,8 kHz - Studio Standard) without intern downsampling?
The electronics board is the Hypex FA123 (manual here) and on Page 16 you can find that while the AKM DAC chip does support DSD, there’s no shot the DSP section will without downsampling. Looks like the ADAU1450 DSP chip maxes at 192 kHz, but lists 48 kHz as the “standard” operating frequency.

Given that there are real tradeoffs to running higher sample rates (usually means lower filter resolution) it is most likely a negative exchange. I don’t meant to crap on Hi-Res audio but most engineers would choose better filter properties (which can make a difference) over superfluously high sample rates (which will not make an audible difference) any day.
 
Got a reply about this from AsciLab on another thread - posting it/link here in case anyone is reading and interested.

"Currently we don’t apply that QC for F series.
F series tweeter has no acoustical issue without it. You can see how low the distortion from the Amir’s review."



F6B.
Received today. Once dispatched, delivery was very quick and sooner than estimate. Departed AsciLab late Wednesday, arrived Friday morning, Korea to Australia.

Early impressions, very positive. Used without subs so far, 3.5x3.5x2.4m room (some treatment of makeshift insulation batts).
Speakers up against the wall, pretty much pointing to my head - "on axis". They're on stands, kinda high, with my ears a little below the tweeter.

Decided to put a 48db/Octave high pass at 33hz, as it seems from some low volume sine tones that they would only make kinda flappy unproductivity sounds if there were content lower than that (flappy sound perhaps mostly from the passive radiator).

I'm delighted, but I guess unsurprised that the mids and especially upper zone is so smooth, with slight down-tilt. I've always had to eq down higher freq with other speakers. I seem to prefer this - no treble boost, and slight downtilt. what a surprise. most recent previous speakers in here were JBL Studio S26 - which I reckon are pretty darn decent good oldies (and better than JBL Studio 630).

Orange is in room moving mic measurement, no eq with both speakers playing, at about 2m listening distance. (grey is a generic "harman"ish room target)
Above 700hz is stupendously lovely "looking". and sounds "right" and great as such.
I ended up adding 2 quick filters around 90hz and 150 hz, resulting in the green line. It is a small but good improvement.

(The dip around 60hz is almost certainly room related - has always been there with other speakers too, and ends up largely solved with a pair of old but good 8"x2 tower speakers that I put to use as "subs". and do well down to about 25hz.)

nice to do so little and have really nice tonality.

Sensitivity seems great actually - probably cause with other speakers, i've always had to eq-attenuate quite a bit to have them not be bright or have midrange annoyances.

Cool and amazing that one little tweeter does everything +1khz.
Looks likely that when i reintroduce them, the subs will be crossing at ~80hz.
Too early to really comment on any particular "imaging" illusions.


View attachment 480264

Related to earlier above post about tweeter QC (or not, as it were) - with umik-1 sweeps of each speaker, at about 87dB from 2m distance, the distortion showing in REW above 1khz is indeed very very low - where it's greyed out, does that mean it's basically below the noisefloor (brown colour)?? White line is THD.

Here's distortion of just one speaker ~87dB @2m. I don't have any real understanding of this, or how reliable it is with umik-1 in REW.

View attachment 480267

and why not, here's a spectogram, no eq, just the 33hz high pass, both speakers playing about 87dB-A/93dB-C.
View attachment 480270
Could you please post the mdat in a zip file?
 
Could you please post the mdat in a zip file?
Will do - will have to be later, hopefully today, and I'll rename/label the measurements more clearly.

Edit: added zip file of .mdat for F6B measurements, sweeps and moving mic, in 3.5x3.5x2.4m room, setup against the wall, ~2m apart.
 

Attachments

Last edited:
So it seems now the only thing left to know is the longevity of this wonderful speaker brand !! Will they endure the trials of time?
Such as Genelec for the most park.
I sure hope they do.
 
Im still pretty excited for their active models. I hope they learned from buchardt and will have different tunings available like the buchardt master tunings
 
F6B.
Received today. Once dispatched, delivery was very quick and sooner than estimate. Departed AsciLab late Wednesday, arrived Friday morning, Korea to Australia.

Early impressions, very positive. Used without subs so far, 3.5x3.5x2.4m room (some treatment of makeshift insulation batts).
Speakers up against the wall, pretty much pointing to my head - "on axis". They're on stands, kinda high, with my ears a little below the tweeter.

Decided to put a 48db/Octave high pass at 33hz, as it seems from some low volume sine tones that they would only make kinda flappy unproductivity sounds if there were content lower than that (flappy sound perhaps mostly from the passive radiator).

I'm delighted, but I guess unsurprised that the mids and especially upper zone is so smooth, with slight down-tilt. I've always had to eq down higher freq with other speakers. I seem to prefer this - no treble boost, and slight downtilt. what a surprise. most recent previous speakers in here were JBL Studio S26 - which I reckon are pretty darn decent good oldies (and better than JBL Studio 630).

Orange is in room moving mic measurement, no eq with both speakers playing, at about 2m listening distance. (grey is a generic "harman"ish room target)
Above 700hz is stupendously lovely "looking". and sounds "right" and great as such.
I ended up adding 2 quick filters around 90hz and 150 hz, resulting in the green line. It is a small but good improvement.

(The dip around 60hz is almost certainly room related - has always been there with other speakers too, and ends up largely solved with a pair of old but good 8"x2 tower speakers that I put to use as "subs". and do well down to about 25hz.)

nice to do so little and have really nice tonality.

Sensitivity seems great actually - probably cause with other speakers, i've always had to eq-attenuate quite a bit to have them not be bright or have midrange annoyances.

Cool and amazing that one little tweeter does everything +1khz.
Looks likely that when i reintroduce them, the subs will be crossing at ~80hz.
Too early to really comment on any particular "imaging" illusions.


View attachment 480264

Related to earlier above post about tweeter QC (or not, as it were) - with umik-1 sweeps of each speaker, at about 87dB from 2m distance, the distortion showing in REW above 1khz is indeed very very low - where it's greyed out, does that mean it's basically below the noisefloor (brown colour)?? White line is THD.

Here's distortion of just one speaker ~87dB @2m. I don't have any real understanding of this, or how reliable it is with umik-1 in REW.

View attachment 480267

and why not, here's a spectogram, no eq, just the 33hz high pass, both speakers playing about 87dB-A/93dB-C.
View attachment 480270

Did some quick umik nearfield measurement to get an idea of how consistently each within the F6B pair might perform and be matched.
Sweeps with Umik-1 200mm distance, about between tweeter and woofer.
Each speaker in same position, best i could, on same stand, mic not moved. same amp (Fosi V3 mono) and same DAC output channel (Balanced)

Here's the difference (REW trace arithmetic A/B), and excessively zoomed in dB scale, 1/48dB smoothed.
Seems pretty great to me, as there's almost certainly some measurement error.

1759564940459.png


and raw sweep results of the 2 speakers used for above difference.
1759565061503.png
 
Independent review and measurements of the A6B published soon (ish).
Keith
 
It would indeed be strange if you, as a seller of the speakers, were to say otherwise.
What I've seen here on ASR, Keith always was correct.
What I'm wondering is, how he makes his money with all that stuff he provides, when it's also available via internet purchase.
 
Good question!
Keith
 
What I've seen here on ASR, Keith always was correct.
What I'm wondering is, how he makes his money with all that stuff he provides, when it's also available via internet purchase.
Some people, like myself, are willing to pay the same or more to buy from people like Keith, who add value through their knowledge and experience. I don’t know Keith’s situation, but even internet sold products can have margin for bricks and mortar stores to make some money.
 
Bonjour
Y a-t-il une chance que nous ayons dans le futur une gamme Ascilab compatible avec « l’art DIRAC », comme la gamme Dynaudio Focus ?
Merci
(Or Dirac Live)
 
Last edited:
Bonjour
Y a-t-il une chance que nous ayons dans le futur une gamme Ascilab compatible avec « l’art DIRAC », comme la gamme Dynaudio Focus ?
Merci
(Or Dirac Live)
I find it mildly disrespectful in the day and age of auro translators to speak your native language and expect everyone to understand it.
 
I find it mildly disrespectful in the day and age of auro translators to speak your native language and expect everyone to understand it.
I find it mildly amusing in the day and age of auto-correct to post your criticism of another's posting style and not expect to have to proof-read it :)
.
(Please take this in the playful spirit in which it is meant- in general I agree that when posting in a forum where English is the common tongue that it is reasonable to ask people to post in English if they want to be "heard")
 
I find it mildly disrespectful in the day and age of auro translators to speak your native language and expect everyone to understand it.
They are reading the forum auto-translated so sometimes forget that translate back what they are writing. It is easy to miss.
 
Back
Top Bottom