How do I set the slat angles on the Flexifuser?
The best way to do this is to sit in the listening position and listen to various pieces of music while you have a friend slowly rotate the slats. Simply set them to the position where the sound becomes more airy with less lower mid range peaks. This will usually be by deflecting sound away from where you are seated. Once you have chosen the desired angles, mark the position of the slats with a wax pencil or small scratch so that you have a record of where they were set.
Is there a particular angle that works best?
No, not really. Although putting them perpendicular may ultimately be the worst position as sound will simply reflect back off the hard surface. Keep in mind that sound becomes increasingly directional as the frequency rise. Using imaginary vectors or a mirror can often help guide you in determining the ideal slat positioning for your room.
Will the Flexifuser be as good as a Razorblade Quadratic Diffuser?
Yes and no. Keep in mind that no room is acoustically perfect and the human brain and ears are amazingly efficient at compensating for room anomalies. Once you have found a comfortable set up, with practice, you will become comfortable with your room and know what it will produce. The Razorblades are a step above as far as diffusion but still require getting use to.
Can I hang a Flexifuser as a cloud for my studio?
Sure, why not? We did not design it for this, but it will diffuse and absorb energy which, by all accounts, is pretty much what a cloud will do. Be careful! It is heavy, so if you choose to use it this way, you want to make sure it is well secured.
Can I use a Flexifuser instead of side absorption panels?
Yes, of course. If you have a particularly dark sounding room (lots of absorption) and want to add side treatment, the Flexifuser would be a good choice as it will keep your room ‘live’ while controlling sound from 250Hz and up.
I notice that you rarely discuss high frequency problems. Why is that?
High frequencies are easy to control versus low frequencies. This is why we usually concern ourselves with how low the device will work. Beyond diffusion, controlling highs is simply a matter of adding acoustic panels.
Can I use the Flexifuser instead of bass traps?
This depends on what you mean by bass. The Flexifuser will effectively absorb bass down to around 250Hz, but will not be as effective below 100Hz. For this, you really need to look at deep cavity devices or specialty bass traps like the MaxTrap or FullTrap.
Can I spread Flexifusers across a wall with spacing in between?
Yes. There are no laws when it comes to acoustics – only preferences. Generally speaking, the closer you are to the wall surface, the closer the Flexifusers should be ganged together. As you move further away from the wall surface, the diffusers can be spread out to cover a larger area. The effect is known as lensing.
Can you explain lensing?
Focus on the sharp line of an object. Now you squint your eyes. You will notice that the edge is blurred. The same applies to sound. Acoustic devices tend to also work beyond their physical structure and the effect is called lensing. Spreading panels or diffusers apart let you take advantage of this effect.
Where should one position Flexifusers in a home theatre?
Probably the best place would be in ‘hot spots’ or on walls where powerful direct reflections will be most noticeable. So if you have a speaker facing a particular wall and the wall is causing a reflection, this would be where the Flexifusers would be used.
What is a natural diffuser?
Natural diffusers can be as diverse as book shelves or odd room shapes. In essence, hard surfaces that can break up sound energy.
Is placing absorbers in between diffusers a good idea?
Sure… why not! Remember, there are no hard rules when it comes to acoustic treatment. It really comes down to creating a relatively neutral working environment that will allow your recordings to transfer well into other rooms. Some folks enjoy recording in a relatively live room while others prefer the intimacy of a darker or more heavily treated room. It usually takes several months of tweaking to adjust your room and get use to how it will work. This is normal for any room and is why most engineers prefer to work in the same room all the time.
Can I purchase Flexifusers direct from Primacoustic?
No. We are not set up to work with individuals and have a solid dealer and distribution network that spans the globe to service customers.