Lowest distortion drivers

[tvrgeek]

Looking for midrange roughly 1000 to 3000 or 4000. Use with 7 or 5 inch mid woofers. Small room HT, not a big PA. Some have very good performance, but low efficiency so unless bi-amping, very hard to use. An example is the RS100. Quite hard to use wit the RS150.

[Billet]

The Visaton B100 possibly? A 4" full range with good efficiency and overall specs. Very flat impedance curve! PE sells them, but the spec sheet is on Visaton's site.

[tvrgeek]

That one might just squeak by if using one of the less efficient mid-bass. CSS maybe. Just not efficient enough for the woofers I have in mind. I guess an excuse for bi amping, but not for this project.
Their CSD plot is kind of misleading as it stops at -30. Should go to -40 at a minimum.

Making progress in using ARTA to get CSD plots. Settings not right yet. I do have some graphs showing tweeters producing sub-harmonics though. So not a rumor to me now. Playing with just a 27TDFC and an HDS. so a pretty poor driver and a half decent one except for the 4 dB dip @ 7K! My test panel is not sufficient for 1M testing. May go to 1/2. As bad as I think the TDCF is, it was vastly better than the Vifas I had in the box first. $25 somethings. Tossed years ago.

Pretty sure I will skip the 3-way and use the SS 6 inchers for the mains and the 5's for the center. I can cross that to either a couple of Seas choices or still have my eye on the Peerless ceramic. I have time to change my mind as most of the decent SB drivers are out of stock. The 5 1/2 Wavetek looks like it work work too. Any are going to push the LF distortion knee down over my 4 1/2 ( RS150 Daytons) LF response I don't need, it is all about distortion. I f I redo th eliving room, I was thinking about the CSS driver, so the B100 may be viable.

[tvrgeek]

Well, ordered a 27TBCD and will test it first. If it's distortion knee is low enough, that wil be a help with any of the woofers I picked as they all have bumps in distortion and breakup to deal with.

[hex168]

The RS52 has been measured to have some QC problems. Until that is cleared up, I'd avoid that driver:
http://www.htguide.com/forum/showthr...s52#post636858

[tvrgeek]

Those are indeed nasty plots. I had some QC problems with a pair of RS150-4 drivers I bought, but I was able to work around them.

[portlandjosh]

Wavecor wf120bd04