Tech Talk 8: Cabinet Resonance HOW TO TREAT IT!

[@denisfraser2203]

As a DIY solution, how would an automotive audio damping material (e.g. Dynamat Xtreme) compare to industrial floor tiles bonded with contact cement?

[@maxstratmann9985]

Also curious about using mass loaded vinyl glued into the cabinet as a similar option.

[@joppesmits5802]

Hi Danny, would adding damping material be considered when calculating the volume of the box?

[@markphilpot4981]

Have you ever tried a ceramic based paint that is applied to the inside of the cabinet as a resonance inhibitor! I used this product back in the late 80s for this purpose. It was made by a company in Florida and I don’t remember the name of the company or the product. It was a water based product. Thanks Danny!

[@dannyrichie9743]

Yes, but they are barely a drop in the bucket to controlling a resonance.

[@mrtim6479]

What would you suggest for very small deskop monitorss? Does that no res product come in thinner versions?

[@dannyrichie9743]

The 2.0 version of this model might be available again early next year: www.gr-research.com/store/p16/LGK_1.0_Kit.html

[@audio_acoustic_engineering]

So the .070” (70 mil) damping layer controls the amplification factor of the enclosure modes. What does foam do? I see people use foam on walls with no audible effect. Thanks Danny, I love the mullet, bring it back🙏🏽🤜🏼

[@0robbi0]

Despite what he say's some speaker cabinets are resonant in order to work as intended. BBC monitors, etc.. Be careful.

[@stargate6951]

Waaay back in the day, 'oil canning' use to be a 'buzz word' for speakers ... Is this along the same 'lines', or something totally different ??

[@antoniojoseandreomartinez9710]

🙋👍❤️👌

[@faverodefavero]

Is there such a thing as a controled desired cabinet ressonance, as in using the cabinet itself as a low frequency reflex port and/or "horn", etc.? I find the idea of incorporating the speaker housing effects as a part of the final sound itself as well as building exocting acoustic housings and horns of specific woods with good acoustic proprieties and other natural materials very, very, fascinating and romantic. That said, I don't know if it's an easy thing to do while actually improving the " plain" speaker sound... probably not.

[@billybastar4022]

So Allen Shaw, and his 55 years of speaker building experience, is all wrong? One of the most legendary speakers used in broadcasting, music producing, and general listening are BBC guidelines built speakers. The strict certification guidelines required an unimpeachable accuracy rating. Guess what they use....cabinets, even more astonishing...cabinets with thin walls, and little to no bracing. The speakers are voiced and intended to resonate, I happen to own a pair of the p3 Harbeth 40th anniversary, awesome. I would love to hear your designs, maybe I will build one to check it out

[@Canadian_Eh_I]

Yeah open baffles are great, if you have an acoustically perfect room which only 0.0001% of people have. Otherwise what you hear in resonances from a cabinet far beats the reflections from an OB speaker IMO. Ive been using an open baffle woofer up until a month ago and I just had to put it in a box for my apartment and it sounds so much cleaner

[@dannyrichie9743]

Yes, those designs are designed to resonant, and some people like that added distortion of that resonance. However, that is not part of the input signal and is not supposed to be there. It is turning the speaker from the roll of reproducing the input signal to becoming a musical instrument.

[@vikassm]

The original BBC LS3/5 "location minimonitor" was conceived to fulfill a very specific set of design goals. Most of its cost went into the electronic crossover. The designers ultimately HAD to use tuned-resonant panels to boost output at around 100hz. Even then, the thing could only produce subjectively adequate bass down to about 60Hz. Did it sound sweet? Hell, Yes. Was it the absolute pinnacle of speaker design & technology in 1975? Not even close. In 2021? Most certainly not. Tech improves. But there's no such thing as "The world's best speaker that works everywhere and costs nothing". Always a set of tradeoffs.