In that case, you must not be aware of any. Their cabinets are extremely solid and well built. Minimizing cabinet resonance is one of their design goals and, just like their other design goals, they achieved it.
Have you ever measured the resonance of a DefTech speaker or compared to a reference, non-resonant source? I have done the latter and a large amount of resonance was audible to me.
This statement makes it clear to me you have little understanding of what is required to properly combat resonance, in its fullest, and most likely what cabinet resonance actually sounds like.
I've read a bunch of DefTech reviews from Home Theater Mag, Sound & Vision/Stereo Review, Ultimate AV Mag, Audio-Video Revolution, and one from The Audio Critic. Pretty much all of them say that DefTech speakers have great build quality. I assume that to have great build quality, there must not be much cabinet resonance issues?
In fact, Home Theater Mag gave the BP7000SCs the same build quality as the Paradigm Reference Signature S8.
BP7000SC: 96
Paradigm: 96
B&W 803D: 98
If cabinet resonance is a major issue, wouldn't build quality also be an issue?
This is a very measurement was taken in a very subjective way. It seems that build quality will change drastically depending on ones definition of the word. I associate build quality with only aesthetics. Design quality is where I personally would catagorize features that effect resonance.
The simple fact is that Def Tech makes excellent speakers (whether judged in absolute terms or relative to price.) People who put them down don't make any sense. Is it just snobbery? Is it that they have a different brand that they are afraid Def Tech will make look bad? Certainly nobody who has ever actually heard them can say they are bad. (Not to therir taste, perhaps, but that is a different matter. For example, Klipsch are not to my taste, but I still acknowledge that they are good speakers.)
This is a very subjective statement whose whole validity is based on a specific person's definition of good. I would not classify Klipsch or DefTech as good, but my standards are well above the typical. For example, one of the best commercial monopolar speakers in production, the B&W 802D, would be considered vastly superior by most, but to me, due mainly to the radiation pattern, these speakers are only suited to near-field listening as they physically cannot replicate a live performance accurately enough to suite my tastes. Now lets take a speaker such as the
MBL 111B these omnipolar speakers would fulfill most of my criteria for complete accuracy of reproduction, but are hard to find and cost 17k a pair.
Please bear in mind these are examples for perfection in fidelity if one has a budget, as in reality I make suggestions for best in a price class to fill these criteria. At no point will DefTech or Klipsch be found due to their poor objective ratings as they relate to human perception.
