Ascilab C8C V1.1 Measurement Update

[markstein]

Hmm, is the bottom covered with some foam? Is it easily removable? I'm wondering about using museum putty or blue tac to secure this to a stand better.

There is a thin foam on the bottom. When placing it on a stand, it will be slightly compressed. This material is a little bit sticky. I would leave it.

 

[TheKoC]

They are actually hard to move around on a stand, because it is so grippy (they also weight 27.5 KG a piece). Does not need additional fixing on an appropiately sized stand, that the base of the stand is wide enough is much more important.

 

[badtimeticket]

Good to know. I'm thinking to get the Monoprice 4 post stand, and get a custom top plate fabricated for this that's maybe 8.5x11 just to hide it a bit (although maybe it will look sloppier than a perfectly sized plate).

 

[AsciLab]

For anyone following the assembly/alignment discussion here: we've posted a summary of the cause and the correct fastening procedure in the Ascilab Owners thread — [https://www.audiosciencereview.com/...k-questions-share-feedback.62397/post-2633363]. If you run into any difficulty joining the C8C and BX8C, please contact [email protected] and we'll help one-on-one.

 

[maltesercross]

Nicely engineered

 

[eric00886]

I finally got to audition these speakers at TAA 2026! Had a nice chat with the rep—turns out almost everyone came by after seeing them on ASR, just like me. Over here, the brand isn't quite as well-known as those legacy audio giants that have been around for decades, but they definitely earned their reputation!

 

[Defi]

I am sad... (hoped it would be my end game speakers).
Estimated in room response : I don't like the bump <100hz, with its peek @50hz.
Too much for my taste (would have to lower it with ed ~-11to-14 db @40~50hz => not good...)

There is no reason to take anything away from an estimated in room response below 100Hz. The only thing that matters there is output, the frequency response is going to depend on your room. If you're looking at a speaker like this without room correction that would be a strange detour, in my opinion.

 

[Scrutable]

I doubt there will be any improvement without room correction for any speaker. You have two objectively top performing speakers failing and the C8C in particular is ruler flat from 40-18K with IR peaks of only 1db with a gentle optimal slope. There is little reason to expect anything different from other great products unless you get something that falls off quickly at 100hz. Which would make it not a top performer and not a very good speaker IMO.

If you don’t want to use EQ, you can treat the room with bass traps and padding behind the speakers per AsciLab’s recommendations.

The impression of actual owners of the C8C is that they are great. The test data suggests the same. Between subjective and objective raves it is clear this model is excellent and a worthy basis for room correction.

 

[markstein]

I am sad... (hoped it would be my end game speakers).
Estimated in room response : I don't like the bump <100hz, with its peek @50hz.
Too much for my taste (would have to lower it with eq ~-11to-14 db @40~50hz => not good...)

???

 

[AudioJester]

Too much bass is much easier to deal with than too little.
If you really want to dial in bass response to your own preference - dsp/eq is the only solution. You can even have multiple curves/profiles to switch between.
The C8C hypex fusion plate amps have PEQ function which is probably enough to get what you want.

Sounds like a room mode at 41Hz?
No out of the box speaker without EQ will address that, but some speakers with rolled off bass extension will excite the mode less and might sound better.

 

[AudioJester]

Room correction : provided with SVS 3000 Micro R Evolution, or with MA1 for KH150+KH 750 DSP or KH 310 II / KH 350.

Better to start your own thread asking these questions, nothing to do with C8C V1.1

 

[markstein]

Room correction : provided with SVS 3000 Micro R Evolution, or with MA1 for KH150+KH 750 DSP or KH 310 II / KH 350.

Notice that the Hypex FA253 amp module used for the C8C also has PEQ capability. You have to measure manually using, e.g., REW, then choose your PEQ settings and enter them manually into the amp module using Hypex HFD software:

https://www.hypex.nl/media/e6/d5/3a/1686127214/hfdhelp.pdf?ts=1769181205

Edit: added link to HFD manual