Official JTR speaker thread - Page 1209 - AVS Forum | Home Theater Discussions And Reviews

Forum Jump: 
Thread Tools
post #36241 of 36242 Old Today, 07:49 AM
AVS Special Member
rcohen's Avatar
Join Date: Feb 2005
Posts: 2,766
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 1124 Post(s)
Liked: 473
Originally Posted by coolgeek View Post
Makes sense...

But there is something else I am missing here...

If all of these were 100% true, then 2 speakers, each designed with different sized drivers and have a flat measurement for a certain frequency range should sound exactly the same (with the exact same feeling of mid bass impact), correct?

I have tested, AB comparison wise with LCR Slanted 8s and my 212s... Now, everyone here thinks the old 212s (especially the sealed version which I use) has a dip in the mid bass region.. so, according to this logic, my s8s should have MORE mid bass bang correct if i drive them to a 'certain' volume that both speakers can handle?

I can tell you, as great as the s8s sound, the mid bass even at low volume just can't compare to the 212s... (I am coupling it with the OS, both crossed at 80hz).. basically at every volume, the S8s would lose to the 212s... even at whisper low volumes... you feel that 'bang' that the 212s give out that the S8s don't...

So, again, unless I am missing something here,...

Yes, exactly... thus, why i hate fan noise... even the slightest noise can be heard very loudly in my room...
Dispersion, distortion, and phase (group delay) can be major factors.

S8s and 212s have very different dispersion characteristics, although I doubt that's the issue at 80hz.

It could be phase issue, if the S8 is out of phase with your sub(s) at that frequency.

You might be running out of output at that frequency, and maybe the s8s are starting to compress.

It's also possible that the 212s have some sort of distortion at that frequency that is producing a fuller sound. For example, ringing or port noise.

There was a big thread about how everyone loved ported mid-bass-monitors. It's hard to guess, but that could be output capability, ringing, or port noise, or some combination thereof.

Another possibility is that differing room placement or phase gave different results.

Whatever the underlying reason, I got the best results in my room by crossing my older 212s at 100hz and fine tuning the response curve in Dirac. This didn't cause any localization issues with my sealed subs, although crossing above 80hz did have did have distracting localization issues with some ported subs I tried (probably port noise).

I also found that simply tuning sub gain and crossover frequency was completely inadequate for dialing in a good bass response curve. That stuff varies so much from room to room, it's a lottery what speakers will happen to have the right natural response. I don't think there's much motivation to obsess over natural response, though, now that we have such good EQ options available.
rcohen is online now  
Sponsored Links
post #36242 of 36242 Old Today, 10:14 AM
AVS Special Member
RMK!'s Avatar
Join Date: Oct 2005
Location: 95608
Posts: 7,809
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 1542 Post(s)
Liked: 1371
Yes, there are some good EQ options now but only Audyssey XT32 is available in my SSP to do an 11.2 setup without using very complicated and or expensive add-on solutions. Most if not all reports say DIRAC is the best new EQ technology and I will probably go in that direction once a single source, reasonably priced 11 channel plus solution is available. In the meantime, using Audyssey, the manual EQ in my INUKE amps and JRiver has allowed me to fine tune the sound to taste.

I watched what I think is the best film I've seen in 2016 last night. Hell or High Water with Jeff Bridges, Chris Pine and Ben Foster is a both disturbing and entertaining look at Middle America from a British director that provides an interesting outsiders perspective on our current socioeconomic political climate. The writing and performances by virtually the entire cast make this little film worth seeing. That said, if you thought Independence Day: Resurgence was a good use of you time you can skip it. But if you like sitting in dark rooms, looking at moving pictures with a good story, great cinematography, acting and soundtrack, it doesn't get much better than this.

Opinions are not facts.
RMK! is online now  
Sponsored Links
Reply Speakers

215RT , 228ht , captivator , Jtr , Jtr Noesis 212ht 212ht Lp , noesis

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off