How can one room kit work in all room sizes?
The London room kit will not address all problems in all room sizes. That would be impossible. It is designed to work in rooms that range between 100sq-ft and 200sq-ft while presenting those with larger rooms a great starting point from which to add extra panels as needed. Smaller rooms have more problems with primary reflections as the reflective surfaces are nearer to the listening position. Thus the London 12 will result in greater panel density in smaller rooms.

So how many more panels do I need to treat a larger room?
This decision is usually a function of how you like to record. Some engineers prefer a relatively live room while some prefer a less ambient environment. The cool thing is that in larger rooms, the wall boundaries are further away and therefore tend to be more forgiving as far as primary reflections are concerned. This is what is so cool about the London 12… it is such a great place to start!

How will the London Kit solve this problem?
The Broadway Broadband panels are designed to effectively absorb frequencies down into the 100Hz region which is usually sufficient for most small rooms. For larger rooms where bass frequencies can extend down into the 50Hz region, you would be well served to beef up your bass control with some MaxTraps or FullTraps. These employ a more sophisticated diaphragmatic resonator to remove bass which of course costs more.

How come the London 12 does not include a ceiling cloud?
This is purely a matter of balancing function and finance. We could add a couple of ceiling clouds into the kit, but then this would increase the price. Then the question would be how many ceiling clouds should go in each kit? We generally recommend that ceiling clouds should span the ceiling above the work area and this can be anywhere from 4 sq-ft for a small post production setup to 16 sq-ft for a recording studio. Then of course there are those that simply cannot put up a cloud for whatever reason. With this in mind, we felt it best to leave the clouds as an option that can be added as needed.

What happened to the old Primacoustic foam room kits?
Some of these are still available, but considering that Broadway glass wool panels are so much better than urethane foam panels and cost about the same, we prefer to suggest a better product.

Why are Broadway panels better? Folks have been using foam for years?
The science of acoustics and sound absorption is only now beginning to be fully understood. Back in the early days of recording, we did not have the test equipment or understanding of how acoustic panels worked. It was a magical science that could only be undertaken by acoustic gurus! With the advent of testing, we now know that the density of the material, not just the thickness plays a major role in how evenly the panel will absorb sound across the frequency spectrum. Tests prove that Broadway panels work better and offer a much smoother and more linear response, particularly in the low end.

Why do you only offer three colors?
Adding colors would cost more to produce and inventory. This would increase our cost and then force the price up. We chose grey, beige and black as they are neutral and will adapt to most room color schemes. You can always recover Broadway panels with any breathable fabric.

My friend bought some Owens-Corning 703 glass wool and made his own acoustic panels. After some time they started to dust. Will this occur with Primacoustic Broadway panels?
No. The problem that your friend experienced is common on self-made panels. Folks will buy glass wool panels without properly encapsulating the panels or treating the edges. After a while, the bass frequencies will cause the glass to vibrate and wiggle out causing dust. To prevent this from occurring, Broadway panels are encapsulated with micromesh and then the edges are chemically treated with a bonding resin to seal them. We have been selling Broadway panels for over 5 years and do not know of a single occurrence regarding dusting.

Are Broadway panels safe to be used anywhere?
Yes. Broadway panels have been tested multiple times to meet class-A requirements in both the United States and in Canada to ensure they are safe for use everywhere. This includes separate tests for the USA called ASTM-E84 and Can/UL C102 for Canada.

What is the California C117 specification all about?
This is a specification used to test foam and fabric for chairs, couches and bedding in the State of California. Although passing this test proves that there is a fire inhibitor embedded in the foam or fabric, it has nothing to do with building codes and approvals by local governing bodies. Mounting foam panels on a wall surfaces is unacceptable for use in any public place and should be avoided. Contact your insurance company or local building authority before using urethane foam on your walls as this may contravene your insurance should you ever have a fire.

Do studios ever use the LEDE concept in the ‘live’ room?
Yes they often do. By having one end of the room more ambient and the other darker, you can enjoy different sounds and apply them to instruments to create different effects. For instance a drum kit in a big live room can be made to sound huge! An acoustic guitar with lots of ambiance is particularly cool with classical music. For jazz, you may want to tighten up the drum kit by placing it in a more heavily treated area… it really depends on the production you are trying to achieve.

Does soft diffusion replace true diffusion?
From a practical perspective, this is a matter of taste and is truly subjective. From a technical perspective, there are many different types of diffusers: some like the Primacoustic Razorblade are true quadratic residue diffusers that offer optimum diffusion but are expensive. Then, there are products that offer relatively good diffusion like the FlexiFuser and the Radiator that are relatively affordable. The Scatter Blocks present a very affordable solution that works very well considering the price.

Can I increase the bass performance of the corner traps by putting more material behind them?
Yes. If you are handy, building a frame behind the Broadband panels and stuffing the inside with cotton or fiberglass will increase the density and further improve low frequency absorption. Stacking the bass traps will further lower the effective frequency.

How far apart should I space the acoustic panels?
It is more a question of reflective angles and aesthetics. Most folks space the panels by about 2″ or 3″ apart at the ‘source-end’ of the room while more space is typical at the ‘receive-end’ to allow more air due to reflections.