RE: Speakers with Subwoofers in the Ultra High-End?

Posted by tomservo (M) on June 25, 2024 at 07:04:00

In Reply to: Speakers with Subwoofers in the Ultra High-End? posted by Doug Schneider on June 24, 2024 at 13:21:32:

It is kind of weird but in home hifi it appears that the reason they were separate is that they made the otherwise full range speaker too large for what marketing wanted (where the sugar cube size was the goal).

This was partly driven by science too as the efficiency even with the "perfect drive" goes down at about -9dB/oct when one lowers the corner F an octave but leaving the cabinet the same volume. Low bass, especially clean is hard.

One problem with a separate sub is that the low pass filter itself is a significant time delay and phase shift so it's hard to make a seamless transition especially so if the sub and upper are not together acoustically. Another is because of our hearing curve, we are very sensitive to bass distortion, for example at 20Hz, the threshold of hearing is around 70dB BUT a 7% 3rd harmonic of 20Hz at 60Hz is just as loud (to our ears) as the 20Hz signal.

Tom Danley

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Follow Ups Full Thread

Topic - Speakers with Subwoofers in the Ultra High-End? - Doug Schneider 13:21:32 06/24/24 (19)

Seems like an advert for sonus Faber and described as novel to drive traffic to your site? - 13th Duke of Wymbourne 14:31:55 06/25/24 (1)

RE: Seems like an advert for sonus Faber and described as novel to drive traffic to your site? - Doug Schneider 17:27:57 06/25/24 (0)

Yes- but you really need 4 subs - Ralph 11:26:46 06/25/24 (4)

And... - E-Stat 14:29:06 06/25/24 (1)

Yup! nt - Ralph 10:37:55 06/26/24 (0)

RE: Yes- but you really need 4 subs - Doug Schneider 13:44:18 06/25/24 (1)

I use only 3 subs but.............................. - Kal Rubinson 13:59:43 06/25/24 (0)

RE: Speakers with Subwoofers in the Ultra High-End? - tomservo 07:04:00 06/25/24 (0)

Some attempts haven't been successful IMHO - E-Stat 06:10:21 06/25/24 (9)

RE: Some attempts haven't been successful IMHO - Doug Schneider 13:45:21 06/25/24 (8)

RE: Some attempts haven't been successful IMHO - hahax@verizon.net 14:28:05 06/25/24 (0)

One would certainly hope - E-Stat 14:10:48 06/25/24 (6)

RE: One would certainly hope - regmac 07:10:31 06/29/24 (5)

Mine are - E-Stat 14:12:11 06/29/24 (4)

RE: Mine are - regmac 04:52:55 06/30/24 (3)

I have no idea - E-Stat 00:15:53 07/02/24 (2)

RE: I have no idea - regmac 07:00:13 07/02/24 (1)

Thanks - E-Stat 07:22:28 07/02/24 (0)

RE: Speakers with Subwoofers in the Ultra High-End? - hahax@verizon.net 20:49:16 06/24/24 (0)

Follow Ups

RE: Speakers with Subwoofers in the Ultra High-End? - tomservo 07:04:00 06/25/24 (0)

RE: Speakers with Subwoofers in the Ultra High-End?

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