Welcome! Need support, you got it. Or share your ideas and experiences.
Return to Planar Speaker Asylum
71.67.188.239
In Reply to: RE: Another wall thread!! posted by timm on May 03, 2016 at 10:57:11
I have been in a smaller similar room with another make of panel and carpeting. Too dry. I was also in a friend's room with double drywall with green goo in between rug and ceiling tile that was just about perfect. Still needed spot absorption at key spots.
With that large a space you are going to need subs anyway with any planar so I would not fret about the loss of bass with an overdamped room.
Yes, the idea is to have the back wall remain live. behind the listener.
Follow Ups:
Yes I could consider a sub. I have a Martin Logan descent which is fast and musical.
I am a bit confused though. Everything I have read about the 20 series is 'they need room to breathe'. I would think a room of that size would allow them to excel. Yet you imply that it will have negatives without subs. ( and I don't mean that in a negative way - just trying to learn). In what size room do you feel they would not need subs? And would there be a downside to decreasing the room size? The speakers need to be 11' off the front wall because of a post.
The 20.x do perform better with more distance to the walls and good depth to the room. It mostly depends on how much bass content is in your music and how loud you listen. For a "reasonable" listener (not me) that does play loud organ music on occasion, a sub will be desirable. .For someone like me, I manage without because my TIV/Neo8 are in a medium room 17X20 and I finagled as much bass as I can get by placement and wall loading to capture the room's deepest bass modes.
My room would suit a 20.x perfectly and would not need a sub. At 20X30 you are good to near reasonable, but the speaker will not fill the room with loud deep bass - some will respond by raising volume and start burning tweeters and even a mid. Then a sub is not just desirable but necessary.
To get an idea of what you need use an spl meter to measure peak output (peak hold setting) in your room when you are playing at satisfying levels as high as you would like. If your peaks are in the 100 db or less range then you will do fine without a sub, If there is bass content going to 110 db at your seat then you will want not one sub but two. 1. because the speaker will bottom out, 2. your amp won't keep up. 3. you will start burning drivers or amps or both.
yes... I am not a loud listener.... I'll just build it and roll with it.... I think making the back wall drywall is a good idea though.... and that would be easier and more cost effective..... I have flexibility in that - I have a huge rug..... I do have bass traps if needed..... diffusors or ficus trees in the 11' space behind the speakers would be real easy to do.... because the room is so deep - My listening position is completely flexible..... So.... saying all of that.... the 11' requirement is really what pushes me to make the room 30' deep.... as it allows me 10' away at listening position minimum - and keeps me 9' away from the back wall.... I can always go near field ...or push farther back if I want as well.... And as you said - having the descent also adds flexibility.... I just love panel bass which I really think is part of what draws me into the 20.7.....and this is why I am a little adverse to using the descent.... but never say never.... Every time I have heard the 20.7 I sit down and expect bass to be weak or look for a weakness there..... and I can't find it.....
I love panel (dipole) bass as well. However, what I decided after some experimentation in a room about the size of yours is that as long as you keep the crossover to the sub at a low enough frequency (I use 40 Hz LR4), you can make things easy for the bass panels without losing the nice dipole character of the rest of the bass range.
Your mileage may differ, of course! Best of luck.
yes ....My sub also has a volume knob @ 25hz and also a 40 hz xover option.... Some guys turn down the overall sub volume - but boost the volume on 25hz so ultra low frequencies come thru without muddying the waters....
Btw - thanks to everyone.... You guys are saints and your input is really valued and appreciated....
Thanks Tim.
I think you have articulated a solution if you do actually encounter a problem.
Good luck constructing your room.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: