Ascilab C6B & F6B Launched – Ask Questions, Share Feedback

[ScottySmallsMom]

I suppose you'd lose some ~120Hz punch with 102 dB peaks, but I'm not sure it would matter for most recordings. I've been listening to the C6B will all kinds of material. Even super dynamic tracks such as Before the Beginning by John Frusciante, where the drums have incredible crests and it certainly doesn't sound lacking in dynamics. I'm about 2m away with average volume around 83dB. I haven't noticed that 1.5dB tweeter compression, probably because there is usually way less energy up there. I imagine with a sub and crossover you'd have zero problem.

 

[andrew]

Re A6B: How suitable are these speakers for a nearfield (~3’ distance) setup? What is the minimum distance for driver integration?

 

[Uncola]

they were great in my desk setup, just give some distance from wall to avoid boominess

 

[Purité Audio]

Re A6B: How suitable are these speakers for a nearfield (~3’ distance) setup? What is the minimum distance for driver integration?

I have experimented with placement on my pairs from three metres to a metre and I don’t detect any issues with a more near field set up.
They are simply superb speakers.
Keith

 

[andrew]

I have experimented with placement on my pairs from three metres to a metre and I don’t detect any issues with a more near field set up.
They are simply superb speakers.
Keith

Thanks, Keith. So now I need to calmly wait until the next production run.

 

[Yoyomeister]

Is there a recommend height for a speaker stand for the C6B?

 

[Purité Audio]

The acoustic centre I believe is between woofer and tweeter, so a stand whose height brings the speaker up to that position, usually around 60cm.
Keith

 

[WeekendWarrior]

The acoustic centre I believe is between woofer and tweeter, so a stand whose height brings the speaker up to that position, usually around 60cm.
Keith

You'd need tall stands to get your ears between woofer and tweeter.

I've got your C6Bs on home loan and they're on 61cm stands, which with spikes/ spike cups are 65cm tall. The point between woofer and tweeter is 23cm from speaker base, so that's 88cm on my stands. I sit on a low chair, and I'm average height, and my ear level is still 100cm (tweeter level). I'd need either 70cm stands, or to sit on the floor to be at acoustic centre!

However, looking at the polar plots I don't think it's too critical.

 

[Yoyomeister]

Thanks guys! Then I'll look for something in the 70-80 cm range.

 

[Purité Audio]

When I measured here, ear height, minus the distance between the base of the speaker and its acoustic centre, the distance and thus height of the stands was 60cm.
I use these ‘Custom Design’ stands, they are robust and stable and not too expensive.

Keith

 

[Toshiba191]

According to Erin's review, the C6B have a minimum output impedance of 2,6 ohms.

The WiiM Amp Pro and the Wiim Amp Ultra both have a minimum output impedance of 2,67 ohms, if the specs I found are correct.

Can this become a problem because they are not as low as the C6B? I don't understand all the technical terms and their correlations yet.

Are these amps equally suited for the C6B?

I only listen from low to medium volume and prefer to chose the Amp Pro (because of its minimalistic design and lower price) if it is good enough.

 

[Curvature]

According to Erin's review, the C6B have a minimum output impedance of 2,6 ohms.

Speaker impedance.

The WiiM Amp Pro and the Wiim Amp Ultra both have a minimum output impedance of 2,67 ohms, if the specs I found are correct.

Minimal acceptable speaker impedance, not output impedance.

Measured output impedance is 0.064-1.74ohm. I assume the latter is at 20kHz. Normal result. You'll be ok.

WiiM Amp Lab Report

To an extent, the ‘Amp’ is a WiiM Pro Plus network-attached streamer/preamp [HFN Aug ’24] with a TI TPA3255 Class D power module attached. However, while both employ a TI PCM1861 ADC for the line input, the Pro Plus uses an AKM AK4493SEQ DAC and the WiiM Amp an ES9018K2M DAC by way of...

www.hifinews.com

 

[Toshiba191]

Measured output impedance is 0.064-1.74ohm. I assume the latter is at 20kHz. Normal result. You'll be ok.

So it's no problem that the speaker impedance of the C6B is lower than the minimum speaker impedance of the amps?

Can someone explain the correlation between these specs for a beginner?

 

[tifune]

When I measured here, ear height, minus the distance between the base of the speaker and its acoustic centre, the distance and thus height of the stands was 60cm.
I use these ‘Custom Design’ stands, they are robust and stable and not too expensive.

Keith

Are any of the AsciLabs units threaded on the bottom for secure attachment to stands?

 

[Curvature]

So it's no problem that the speaker impedance of the C6B is lower than the minimum speaker impedance of the amps?

Can someone explain the correlation between these specs for a beginner?

The output impedance of the amp should be lower than the speaker's impedance. Which is the case here. The ratio is called damping factor.

 

[Purité Audio]

Are any of the AsciLabs units threaded on the bottom for secure attachment to stands?

None of the speakers released so far, they all have flat bases with a rubber/silcon pad.
Keith

 

[Uncola]

LOL I found myself browsing new amplifiers but I remembered my endgame plan was to get the active C6C. so new amps would be pointless. any news you can release about the C6C, @ascilabs?

 

[Marin]

Welcome to ASR!
Between the Super Linton and the C6B I would choose the latter for its better linearity, dispersion and looks (this is personal).

AsciLab C6B Review

AsciLab C6B Review

www.erinsaudiocorner.com

Wharfedale Super Linton Speaker Review

Wharfedale Super Linton

www.erinsaudiocorner.com

Wharfdale Linton because they are more sensitive, 3-way design, much better in handling distortion and bigger speaker that comes with stand for me is a winner.

 

[AsciLab]

Wharfdale Linton because they are more sensitive, 3-way design, much better in handling distortion and bigger speaker that comes with stand for me is a winner.

Then you may like our upcoming standing floor design

 

[stigger]

@AsciLab, while you are here, could you please give a quick update on when can we expect the next batch of C6Bs to be done?