AsciLab F6B Bookshelf Speaker Review

[Luvchampagne]

No, I just feel a 7m listening distance with a need for 90db is a niche case. Definitely not something you would use 85db sensitivity speakers or any bookshelf speaker for.

Afraid of reading?

This was the post
So why do audiophiles still want some McIntosh at 200w to supply 90db speakers ? According to them, it gives more dynamics
I gave a use case. What's the issue?

 

[Brycycle]

Anyone care to offer an opinion if these would be a sonic improvement over the Neumann KH120 II?

 

[levimax]

Anyone care to offer an opinion if these would be a sonic improvement over the Neumann KH120 II?

An opinion based on nothing more than reading the two reviews. I very much doubt a sonic improvement and trying to "upgrade" from KH120II would at best be a "sideways move".

On that other hand if you don't already own the KH 120's these are an interesting and competitive alternative and depending on what electronics you own would be cheaper to much cheaper.

 

[TurtlePaul]

Anyone care to offer an opinion if these would be a sonic improvement over the Neumann KH120 II?

I think that the KH120 II would be a little bit better than this one. The Neumanns are a little flatter on-axis and they both have about the same amount of in-room response wiggles. The F6B seems to be having woofer issues at 300-500 hz, but you can't really get the overbuilt audiophile woofers at this price (and these look to be designed for a price point). The Neumann will have more bass extension, likely because of DSP.

But Ascilab makes the C6B (with the SB ceramic/aluminum woofers) which would be slightly better than the KH120 II, but probably not better enough so that I would upgrade to them if I already had KH120 II. Erin's Audio Corner did a good review of the C6B recently. If I didn't own either, I would get a pair of C6B and a <$200 class-D amp rather than a pair of Neumann KH120 II.

Ascilab is also preparing the A6B with Purifi woofers. Those would be a solid upgrade from KH120 II but are priced like KH150s (which they would complete closely with). The main upgrade would be much fuller bass in the 30-50 hz range and ability to play at louder volume levels.

 

[ROOSKIE]

True

So why do audiophiles still want some McIntosh at 200w to supply 90db speakers ? According to them, it gives more dynamics

Would be good that amir writes down an article on this

I gave that example of 8watts in the context listening at at low to modestly loud levels in a 'average sized' listening space.

If you plan to listen very loudly in a larger sized space the power demand goes up quickly as for every 3db of gain you must double the amplifier power output and then if sit 10-15feet away you will again need more juice.

If in my example a single 84db sensitive speaker hit 93db with 8 watts, it would need 16 for 96, 32 for 99, 64 for 102 & for 105db peaks it would need 128watts. But this was at 1meter.
At a typical distance of 3 meters you need 1150watts for a single 84db sensitive speakers to hit 105db anechoic peaks. Obviously less in a real room (about 30-50% of that) and less with a pair of speakers vs a single speaker. Not many 84db sensitive speakers can hit 105db anechoic cleanly nor handle 1150 watts (powered subwoofers often can and do)

Still, at VERY high SPL it would better to have that 90db speaker AND a big amp.

I use 400watt/channel amps. I tend to crank it up often and while 200watts would usually be enough it is the same price for 400-500. 50-100 is not enough for me in my main listening space. In my secondary systems in smaller spaces where high SPL is not used much= bedroom, garage, or my step sons room, 10 watts is plenty.

I also look for amps that can handle low impedances and still output lots of voltages. Ideally they would double power when going from 8ohms to 4ohms and again from 4ohms to 2ohms. If they do not double power you will lose some bass dynamics as the amp will not be providing enough voltage to speakers.

This actually could be a reason some high sensitivity speaker sound more dynamic, it isn't actually the speaker itself being more dynamic but rather the chosen amp not providing enough voltage at low impedances. If your speakers are low sensitivity and have low impedance zones get a real beefy amp.

 

[MZKM]

Reserved.

 

[YSC]

I am really interested in the C6B, all white looks quite good and tempting.

 

[daniboun]

Personally, I would not use the C6B without a subwoofer in a living room or dining room. I mean a room with a fairly large volume)

 

[Purité Audio]

Personally, I would not use the C6B without a subwoofer in a living room or dining room. I mean a room with a fairly large volume)

Which would be true for every two way compact design ever created.
Keith

 

[Joachim Herbert]

Wait a second…no equalization?..

Why am i paying for Roon

You will make use of it in room.

 

[DanTheMan]

Does anyone know how close the orange waveguide is to matching Fosi Audio's orange knob?

 

[Mike_Trueman]

Does anyone know how close the orange waveguide is to matching Fosi Audio's orange knob?

I think Fosi is really close with the orange. Why not buy it in full orange?

 

[EJ3]

I think Fosi is really close with the orange. Why not buy it in full orange?

View attachment 457427

I very much like "burnt orange" as a car color.
In my living room I like more subdued colors, such as walnut.
And no blacks or whites. A mix of black & white, like grey, silver (even the metallic), or cream works for me.

 

[AsciLab]

Does anyone know how close the orange waveguide is to matching Fosi Audio's orange knob?

Will this be help to you?

 

[Gremlins]

View attachment 457479
Will this be help to you?

Hi

Would you know why the cabinets seen on audiophonics for F6B are different?

ASCILAB F6B Enceintes Bibliothèque Noir (La paire)

Les AsciLab F6B sont des enceintes passives de type bibliothèque, offrant une restitution sonore précise et puissante dans un format compact.

www.audiophonics.fr

 

[Gremlins]

C6b are different than the ones seen on this site too

ASCILAB C6B Enceintes Bibliothèque Blanc (La paire)

Les AsciLab C6B sont des enceintes passives de type bibliothèque, offrant une restitution sonore précise et puissante dans un format compact.

www.audiophonics.fr

 

[donahana]

Oooh this one seems pretty good, currently using a pair of Dali Oberon 1 for a small ~10m² room 2.1 PC/TV setup and been wanting to try some different speakers, decided to check their website and apparently worldwide shipping is included? That makes it a pretty interesting choice even with high import tax here (Brazil), had my eyes on the DBR62 initially but considering giving this a try instead, might wait a few months to see if there's any sale on those

 

[Purité Audio]

C6b are different than the ones seen on this site too

ASCILAB C6B Enceintes Bibliothèque Blanc (La paire)

Les AsciLab C6B sont des enceintes passives de type bibliothèque, offrant une restitution sonore précise et puissante dans un format compact.

www.audiophonics.fr

I can’t see any differences apart from the black waveguide, which is a standard option
Keith

 

[Gremlins]

Sorry

I see some cabinets with 90 degrees angle and some with circular angles if you see what i try to describe in english

See above on this page picture with many cabinets, see picture from amir on page 1, and picture on page 1 in the comments

 

[amirm]

Are you asking if the corners are rounded?