audiokinesis
Responses from audiokinesis
| Frequency response + or - 1 dB ?? @ptss wrote: "responses to this thread have virtually all been to say why frequency response is unimportant. "Imo frequency response is the most important thing, but imo "frequency response" MUST include the off-axis behavior of the speaker becau... | |
| Low Sensitivity Speakers Compression Issue. "Still, this is not the only thing to look for in a speaker..."Totally agree.Duke | |
| Terrible Booms I agree with freediver: Try Auralex SubDudes underneath your Proacs. They will eliminate mechanical transmission of vibrations from speaker to floor. You may still have acoustic (air-borne) vibration issues, which would have to be addressed sep... | |
| How come Horn + woofer designs are not more popular? Thank you very much pbrain for that in-depth reply."I think the in-your-face character of the M2 is mostly due to its higher directivity index across the audio band. That’s not atypical of horns in general."I agree. My study of acoustics and psych... | |
| Low Sensitivity Speakers Compression Issue. Erik wrote: "By the way, I’ve never seen anything about a single peak causing thermal compression, or that only the peaks are then compressed, or that everything is fine BUT the peaks due to thermals."If, as Earl Geddes says, the heating is instan... | |
| How come Horn + woofer designs are not more popular? Pbrain wrote: "A couple years back, I had the fortunate opportunity to take part in a double-blind mono test between a Revel Salon2 (very high-end, 6-way, traditional dome-tweeter design) and JBL M2 ("master reference" horn-based 2-way design) spe... | |
| Low Sensitivity Speakers Compression Issue. IF thermal modulation (compression of peaks due to the instantaneous voice coil heating and resulting resistance at the onset of a transient) is a real thing, THEN there is an interesting implication about amplification choice:What if we used an a... | |
| Low Sensitivity Speakers Compression Issue. "If memory serves, the late, great, Siegfried Linkwitz, had some very interesting oscilloscipe traces, using tone bursts, and it was in fact quite remarkable how fast thermal compression set in."That makes sense."Another thing, there’s other types... | |
| Low Sensitivity Speakers Compression Issue. @kenjit wrote: "the stereophile article says... [thermal compression] is negligible."Here is the problem with that article: It looked at temperature changes averaged out over time, rather that looking at the instantaneous spike in temperature (and... | |
| Low Sensitivity Speakers Compression Issue. Trytone wrote: "Perhaps it is not that big a problem, Google "thermal compression" loudspeakers and there is a Stereophile article from 2006, complete with measurements."I remember that article and it dismissed thermal effects as being inconsequen... | |
| Low Sensitivity Speakers Compression Issue. Very interesting, bdp24! Sounds like a wonderful place. That would have been so much fun to attend the Saturday nerd sessions! Great that Brooks was open to that even if his own preferences were in a completely different direction. And I didn't... | |
| Speakers I have Two in mine?? "I have a pair of Zu Souls MK11, I like them, but wish, I have more bass slam, and a slight reduction in the treble, only just!!"This thought occurs to me:You can think of the tonal balance of a speaker like a see-saw: If the top end is too much, ... | |
| Low Sensitivity Speakers Compression Issue. @bdp24, thanks for the story! My understanding is that Bruce Edgar really is a rocket scientist... I think he worked at NASA, or maybe it was an aerospace company. He's as enthusiastic as a kid, and hasn't let his MS throttle back his enthusiasm... | |
| Frequency response + or - 1 dB ?? "It was probably not measured properly and not really flat. Why else would it sound dreadful?"Actually, you are right! I was only measuring the on-axis response, and ignoring the off-axis response, because back then I didn’t know any better!But he... | |
| Frequency response + or - 1 dB ?? A powerful DSP unit can probably get you pretty close at the microphone location, but to do it right, you'd need to exclude reflections.When I first had access to good test equipment, as an enthusiastic amateur, I built a speaker that was about +/... |