The "home theater Acoustimass speakers" use a little 5.25" car door speaker as its sub-woofer and produces a strong resonance at about 120Hz. Then ordinary people who know nothing about sound systems hear the 120Hz and think it is bass and believe their ad that says impossible things about it.By your user ID, I'm guessing you'd have pretty good knowledge about audio. Tell us, was the bass one-note, as crutschow says?
They never sold the demo speakers, instead they were showing how well they can hide a huge sub-woofer.Do you think Bose speakers are still flat sounding? It must have been a long time, as they are no longer doing that show of hiding small speakers in a large box and revealing them at the end of the demo.
Technical details are VERY important. Some poor quality manufacturers say the frequency response is 20Hz to 20kHz and ordinary people think it is good. But the ordinary people do not know about the deviation which might be plus or minus 30dB which is terrible or might be plus or minus 3dB which is pretty good.How important are the technical details in speakers? Bose doesn't publish them but people seem to think they sound great, but audiophiles say they are ignorant consumers.
The "home theater Acoustimass speakers" use a little 5.25" car door speaker as its sub-woofer and produces a strong resonance at about 120Hz. Then ordinary people who know nothing about sound systems hear the 120Hz and think it is bass and believe their ad that says impossible things about it.
Ordinary people also think an expensive system is better than a lesser costing system without knowing how much profit Bose makes.
They never sold the demo speakers, instead they were showing how well they can hide a huge sub-woofer.
Technical details are VERY important. Some poor quality manufacturers say the frequency response is 20Hz to 20kHz and ordinary people think it is good. But the ordinary people do not know about the deviation which might be plus or minus 30dB which is terrible or might be plus or minus 3dB which is pretty good.
I'm sure they must have sold different units of the model which they demoed.
JBL doesn't show the flatness rating of their consumer speakers, but they show frequency response, does that make JBL a bad speaker company? Their consumer speakers are some of the best one can buy in the market.
Almost all headphone and earphone manufacturers also don't show flatness rating but show frequency response, does that meant that their headphones and earphones sound bad?
Sennheiser doesn't show it.
Beyerdynamic doesn't show it.
Bowers & Wilkins doesn't show it. (for their earphones and headphones)
Humans don't have a reference output of a track to compare it against a speakers reproduction of it with their ears, so how exactly does flatness rating help? Is it more to assure oneself than the actual deviation from a flat reproduction?
How can one show frequency response without showing the "flatness" of the frequency response?
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What do they do? Above, you claim they somehow show frequency response in such a way that I cannot elucidate the flatness of the frequency response. The whole point of a frequency response curve is to show whether it is flat or has resonances or valleys that are not flat.I don't know, JBL does that, and many other speaker manufacturers do that also.
What do they do? Above, you claim they somehow show frequency response in such a way that I cannot elucidate the flatness of the frequency response. The whole point of a frequency response curve is to show whether it is flat or has resonances or valleys that are not flat.
JBL only says their speakers have a frequency response, they do not show any data. A graph is needed or a description of the graph is needed. Simple descriptions can be deceptive.
Read this.
https://www.ecoustics.com/articles/understanding-speaker-frequency-response/
Most users don't listen to speakers they buy in anechoic chamber, so how much does that matter? In a users room, certain sounds might be quieter, certain other sounds might be louder, a user will not correct the defects in their room, that would mean removing objects and moving things around. Unless one has a dedicated room and they can measure the speakers they buy, these specifications don't really help that much. (Unless you trust the speaker manufacturing company)
Correct, so go back to my first post on this thread and do/believe what you want. Sound is a personal perception - so is odor, color, taste...
Sorry, I didn't mean to come off hostile.
I'm just trying to understand why audiophiles place so much importance on those specifications.
Although I would like to know which speaker companies you know publish those graphs. I think almost all the highly reputed speaker companies, but not a single one of them seem to be publish them.
A frequency response statement without a deviation from flatness is meaningless.
A cheap speaker "responds" at DC and at radio frequencies by making heat, not sound, but IT IS responding.
Sound levels are measured with decibels, not with words. The deviation from flatness shows if it sounds like a bongo drum or like an AM radio.
When a speaker has a flat frequency response then the user can use equalization (or simple tone controls) to correct errors caused by his room.
Parts Express (.com) sell raw speakers and kits of speakers. Most of them have a frequency response curve and the kits are showed and said to have a flat well balanced frequency response.
I bought crossover coils from a local high end speaker manufacturer. Their speakers looked beautiful and were very expensive. But their coils performed poorly so I measured the inductance, it was WRONG. I took a frequency response analyser to their plant and showed them the poor frequency response caused by the coil error and they were shocked.
uneducatedthe average consumer is stupid about technical details
I think consumer speaker companies do not publish detailed spec's because the average consumer is stupid about technical details. Many "pro" speakers are made to be very loud then they have a horrible frequency response that is made half-decent with equalization. Hobbyists buy raw speakers from Parts Express and others because they want the detailed spec's.
Can Bose really be criticized for going overboard with not publishing essential details of the speakers, which the other companies are also not providing fully?
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