AsciLab speakers are about to launch

[AsciLab]

On a scale of 1:10, how much should I avoid messing around with floorstanding speakers in a 21m² room (living room with kitchenette) - speaker arrangement in an equilateral triangle with a user with an triangle side length of 2.5-2.7m. Should I just stop it, get help, and buy standmounts?

Actually a bookshelf speaker with a speaker stand doesn’t use less footprint than a usual floorstanding speaker. You can use them inside your room. 2.5~2.7m listening distance is enough.

 

[Negatywny]

Precisely because floorstanding and bookshelf speakers take up the same amount of space, I'd prefer floorstanding speakers. For this reason, I tried the Polk R700s, and unfortunately, they were absolutely overwhelming, despite the supposedly linear bass...

 

[Mike_Trueman]

Testing the new C8T tower version is see.

 

[Halbknapp]

By the numbers, I feel the C6B and F6B are pretty typical sensitivity, but the A6B are a decent notch lower sensitivity. But they can take a lotta power! With a strong source/pre-amp, and at typical normal levels, I imagine it's probably fine - but imagine they probably really do want a strong amp.

Did you find a pretty obvious and substantial difference in output level?

(AsciLab's A6B Spin Data link for convenience...)

Post in thread 'AsciLab speakers are about to launch'

Jul 12, 2024

AsciLab A6B Passive

Specification

- 2-way Bookshelf Speaker
- Dual Purifi Passive Radiator
- 1" Alumina Ceramic Dome Tweeter with Custom Waveguide and Phase Plug
- 6" Aluminum Purifi Woofer
- LW 4th Order Crossover
- 1kHz Crossover Point
- Bass Extension : F3 35Hz / F6 31Hz / F10 28Hz
- Size : WxHxD / 220x405x300mm(except binding post)

Measurements...

• AsciLab

• 

The thing to understand is that playing fullrange with some deep bass the C6B or F6B will leave their woofers xmax with a few watts of power and sound strained. The A6B may need double the power to get to the same volume (but with more bass) and can go even louder after that with less strain given the amplifier power is available.

So with a 50W class D you can get substantial volume out of a C6B but not a A6B. But with a 200W Amp the C6B will not gain that much while the A6B will.

 

[AudioJester]

I thought the last letter, that is "B" -meant bookshelf. Calling it C6B tower seems confusing?

 

[Matt_Holland]

C6B tower

Nice!

@AsciLab interested to know the crossover frequency and slopes between mid and bass drivers, and the reason(s) for the height of the bass drivers?

This is the type of product that will grow your business in my opinion. The cardioid designs and bass extension modules, whilst fantastic in terms of engineering and acoustic design, will be too niche. Having one unicorn product to show off the companies design prowess makes sense I think. Even active designs will be niche compared to passives once the business grows.

 

[AsciLab]

I thought the last letter, that is "B" -meant bookshelf. Calling it C6B tower seems confusing?

Its name is not C6B tower. Internally we call it as C8T now.

 

[AsciLab]

@AsciLab interested to know the crossover frequency and slopes between mid and bass drivers, and the reason(s) for the height of the bass drivers?

The reason of woofer position is because of directivity and to avoid strong standing wave.
The position can be varied after testing. It is the very first prototype.

Mid to bass driver crossover will be around 200Hz. I’m still testing though.

 

[Grotti]

Its name is not C6B tower. Internally we call it as C8T now.

Makes sense. It will be interesting to compare the specs to A6B. And the prices of course ;o)

 

[Sokel]

.

Mid to bass driver crossover will be around 200Hz. I’m still testing though.

If the driver's distance allows it I would suggest 250-300Hz, that's a good sweet spot in terms of energy.

 

[Grotti]

The reason of woofer position is because of directivity and to avoid strong standing wave.
The position can be varied after testing. It is the very first prototype.

Mid to bass driver crossover will be around 200Hz. I’m still testing though.

Regarding standing wave in larger enclosures: have you considered an internal Helmholtz absorber to eliminate it?

 

[AsciLab]

If the driver's distance allows it I would suggest 250-300Hz, that's a good sweet spot in terms of energy.

What energy?

 

[Matt_Holland]

The reason of woofer position is because of directivity and to avoid strong standing wave.
The position can be varied after testing. It is the very first prototype.

Mid to bass driver crossover will be around 200Hz. I’m still testing though.

Thanks. Looking forward to more progress reports.

 

[Sokel]

What energy?

Between ways, voltage-wise.

 

[AsciLab]

Regarding standing wave in larger enclosures: have you considered an internal Helmholtz absorber to eliminate it?

It would work but a complex design can increase the cost.

 

[Matt_Holland]

Between ways, voltage-wise.

Based on what distribution? Typical music, Pink?

 

[Sokel]

Based on what distribution? Typical music, Pink?

Average most, yes.
Also kind of uninterrupted range for female/male voices.
It's kind of a recipe for "big" sound.

It's also handy as it goes high enough even for smaller rooms to EQ one way while leaving mid-highs alone.
Make more sense for active designs though, admittedly.

 

[Grotti]

It would work but a complex design can increase the cost.

It's not really a complex design. A small enclosure within the tower enclosure with a reflex port tuned to the frequency of the standing wave (about 170 Hz for a typical 100 cm tall rower speaker) and stuffed with absorbing material. The internal absorber could be a compartment of the enclosure (at bottom or top) which can be realised using only one additional board.

 

[Sokel]

Based on what distribution? Typical music, Pink?

Example (PN) :


Low


mid-high

Sometimes we forget that spectrum energy is additive.

 

[DearSX]

cool