Yes I know Bose speakers are frowned upon by audiophile community.
But these other audiophile speaker companies like Bowers & Wilkins, they also pair their satellites with sub-woofers, and qualitatively they don't sound any different than Bose speakers. So how much does speaker ratings matter? Humans when they hear, their ears don't measure off-axis and on-axis, if the track is +/- 3dB louder or quieter than the original recording, because as they are hearing, they can't measure the speaker's reproduction of a track against how the real track would sound.
Besides there are many audiophile companies which have the same speaker ratings, but different users prefer different speakers, one cannot ignore the subjective aspect of speakers.
That makes the speaker easier to drive at a high power level with a given supply voltage, but it doesn't increase the maximum output the speaker can deliver.At least in the past, a way Bose made more powerful speakers was by their voice coil being in the neighborhood of 1 ohm impedance instead of the typical 8.
The "right Sound" is whatever you get used to. My favorite versions of some classic songs are the ones I remember hearing in my '74 pinto with Jensen speakers and the stock am/fm cassette. Listening to the same songs on a friend's expensive Fisher home audio system seemed a bit "off". If you are happy with a particular receiver/speaker/room/price combination, don't let anyone else tell you to be unhappy.
At least in the past, a way Bose made more powerful speakers was by their voice coil being in the neighborhood of 1 ohm impedance instead of the typical 8.
Generally the Bose system has a frequency dip between the low end of the small speakers, and the high end of the subwoofer.
It may not be noticeable when using it for TV and home theater sound, but it is usually noticeable with music.
If you think "other audiophile speaker companies like Bowers & Wilkins, they also pair their satellites with sub-woofers, and qualitatively they don't sound any different than Bose speakers" then you have never compared them side by side.
One way to somewhat compensate for the small speaker is to to use an active filter or DSP to increase the gain at the small speaker's low frequency end to compensate for it's drop-off.
But that's limited by the small speakers ability to move more air for equal volume before it distorts, which is required as the frequency drops.
So what you would need is speaker that is defined as a full range that can generate a large cone excursion such as shown:
View attachment 117913 (Note the rolled speaker surround, that allows a long excursion.)
Along with that you need an amp with a good amount of undistorted power available.
But there still a limit to the maximum that a 2" speaker can do at lower frequencies.
There's no other magic or "tuning" that can help
That's why other speaker manufacturers use larger speakers.
That makes the speaker easier to drive at a high power level with a given supply voltage, but it doesn't increase the maximum output the speaker can deliver.
But these other audiophile speaker companies like Bowers & Wilkins, they also pair their satellites with sub-woofers, and qualitatively they don't sound any different than Bose speakers.
What would be best cross-over for satellites and this type of sub-woofer? How would I build the cylinder inside the sub-woofer?
I presume you mean a 'port'?, this is common on many speakers - and is tuned to the particular cabinet and driver used - and not just in sub-woofers. It increases the bass response, but means it drops off faster below that point, and also decreases the power handling of the speaker. It doesn't have to be a tube, a hole is common, as are folded ports - speaker cabinet design is a very complicated subject.
No, not the port. There seems to be a separate chamber inside their sub-woofer, the bass seems to be first interact inside this chamber before the room.
Yes, Bose is good at putting catchy names on a more-or-less standard design. Bose has managed to market their systems so people think they are high-end, when they are not.The Bose calls their sub-woofers, acoustimass modules, they seem to incorporate a kind of cylinder inside their structure,
The cross-over is determined by the low-end frequency response of the satellite speakers. Ideally the low-pass roll-off of the satellite coincides with the high-pass rolloff of the subwoofer so that the total output has no dips or peaks in the summed response at the crossover.What would be best cross-over for satellites and this type of sub-woofer? How would I build the cylinder inside the sub-woofer?
The ability of a speaker to move air is a function of its volume. The area of a circle is (A = π r²). The third dimension is the "through" or travel of the speaker. (in/out) I had some 20" speakers with little travel. A 10 inch speaker needs to have 4x more travel to move the same air. A little 5 inch speaker will need to have 16x the travel. For a little speaker to act like a big speaker the magnet must be designed to move the cone a long distance. That is why many small speakers have very long (big) magnets.Note the rolled speaker surround, that allows a long excursion
I forgot to say that I saw a very little portable Bose speaker at a Costco demo. It produced fairly deep and powerful bass. It costs a fortune.
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.
Important enough that a manufacturer will show them EVERY TIME when they are good. So, statistically, the correlation of Published data to speaker quality is pretty good. Conversely, the lack of data means the marketing department is hiding the data and spinning the quality by simply using words like "exceptional", "room-filling", "realistic", ...How important are the technical details in speakers?
No highs, no lows, must be Bose!
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