In Reply to: RE: Are you conflating terms here? posted by John Elison on April 21, 2015 at 23:04:46:
With all respects, "what a speaker acts like," i.e. a person's subjective conclusions from their observations, is not determinative of the type of speaker it is.
Your Thiels are bass reflex speakers, albeit ones that use a passive radiator instead of a slug of air in a port for their reflex tuning.
Any woofer will have a characteristic roll off in its low frequency extension. In general terms, whether used in a sealed box enclosure or in a reflex box, a woofer can be made that will provide the same amount of energy. That is, there will be the same amount of "area under the curve." You cannot make bass energy out of nothing. A well made bass reflex speaker takes some of the area under the curve that is extreme bass and moves it higher in frequency. This has the effect of moving the bass roll off lower in frequency, giving more apparent bass, but rolling off the bass much more steeply thereafter. A sealed box will have deeper bass, but the bass will not seem as prominent.
Below is a link to a Stereophile Review (bless JA, all the work he puts in, and his generosity in publishing these reviews!) that shows your Thiels to have a classic bass reflex roll-off. I'm sure the bass you experience in your room is deep, tight and tuneful.
JE
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Follow Ups
- RE: Are you conflating terms here? - Jaundiced Ear 23:44:56 04/21/15 (10)
- RE: Are you conflating terms here? - John Elison 00:10:32 04/22/15 (9)
- RE: Are you conflating terms here? - Jaundiced Ear 00:56:40 04/22/15 (8)
- RE: Are you conflating terms here? - John Elison 01:19:30 04/22/15 (7)
- RE: Are you conflating terms here? - Inmate51 07:31:35 04/22/15 (6)
- RE: Are you conflating terms here? - John Elison 13:13:08 04/22/15 (5)
- I've seen passive radiator speakers pump quite a bit on vinyl, tho -nt - Bry 14:39:04 04/22/15 (4)
- RE: I've seen passive radiator speakers pump quite a bit on vinyl, tho -nt - John Elison 15:03:18 04/22/15 (2)
- RE: I've seen passive radiator speakers pump quite a bit on vinyl, tho -nt - Dave_K 06:41:33 04/23/15 (0)
- You've got a nice pair of speakers there. - Jaundiced Ear 15:15:23 04/22/15 (0)
- RE: I've seen acoustic suspension speakers pump on vinyl! NT - Jaundiced Ear 14:41:27 04/22/15 (0)