RE: Measure T-S parameters

Speaker Asylum

General speaker questions for audio and home theater.

In Reply to: How can we tell posted by genungo on June 4, 2015 at 06:57:45:

What is interesting from a measurement perspective - is that at the suspension (Spider, Surround) get more compliant - FS drops VAS rises so for a sealed box the tuning (F3) doesn't change much. The compliance is high to begin with for a "true" Acoustic Suspension design (you can build a sealed box that is not "really" Acoustic Suspension)

For a ported or reflex box and a band pass box - the port and Driver interaction can be more seriously affected by break in parameters.

Some have reported that the cone break-up modes change with use - sounding better as a fiber or composite cone material "loosens up" - though I have not seen measurements to reflect this.

I'll run a set of drivers in a double sided enclosed box I've made for 72 Hours break-in. (sound is contained in the box so it isn't that loud) At 48 Hours the the TS have pretty much reached their limits. I use a log swept sine that runs from 2/3rds FS to 3X FS.

"The hardest thing of all is to find a black cat in a dark room, especially if there is no cat" - Confucius

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Follow Ups Full Thread

Topic - Question for KEF owners - Mr Peabody 20:01:31 06/02/15 (11)

RE: Question for KEF owners - Paul Wilson 11:22:41 06/03/15 (8)

How can we tell - genungo 06:57:45 06/04/15 (7)

RE: Measure T-S parameters - BigguyinATL 08:10:30 06/10/15 (0)

RE: How can we tell - RGA 21:46:09 06/04/15 (5)

RE: How can we tell - DrChaos 13:51:07 06/05/15 (0)

RE: How can we tell - genungo 05:23:52 06/05/15 (3)

RE: How can we tell - merid 09:18:47 06/07/15 (0)

RE: How can we tell - Mr Peabody 09:22:27 06/06/15 (0)

RE: How can we tell - RGA 08:30:24 06/05/15 (0)

RE: Question for KEF owners - Tidycat1 20:45:26 06/02/15 (1)

RE: Question for KEF owners - Mr Peabody 05:09:25 06/03/15 (0)

Follow Ups

RE: Measure T-S parameters - BigguyinATL 08:10:30 06/10/15 (0)

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