active room nuetralizer???


I am curious about this new product,and am a big fan of acoustical treatment .When i added room treatment my system really opened up and my low end also became much tighter.I am just wondering if the experts have any input,my first thought is for applications not allowing panels.Yes i know there are a million tweeks ,good ,bad and placebo.I have no affilaition so lets hear your opinions.

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What is the product? Are we supposed to guess?
Alan
Bybee Active Room Neutralizer
I did not want to post it in the first part of the thread .I have zero affiliation and didn’t want it percieved that way ..
cheers

It is listed here as a new product....powered...

Bag End has a unit that has been reviewed and works as expected, plus Bag End has a very good rep:

http://bagend.com/products/series/active-bass-trap/

Other cool alternatives are to get some Klipsch corner horn speaker cabinets and fill them with fiberglass, stick them in a corner. They work wonders, and can hold plants and lights on top. :D ;D :D

The Bag End units DO work but they are kind of limited in only taking on a couple of room modes. The most comprehensive solution is corner bass traps plus careful EQ.

Best,


Erik

Hey Erik
Hope your well,
I saw this and was curious.
I am exploring options on my ht room .GIK has done very well for me in my 2:2 room,but my ht room is pretty big with high ceilings bringing alot of slap echo. I will more then likey run some of the big 7" thick traps high (17’ ) along my timberframe main beam,along with traps and other panels on the walls . I guess I was as usual curious about a product like this in an audio applicaton limited to little or no panels.I am aware of the many room treating options,but my knowledge is limited on this type
Hi OleSchool!  I'm doing OK. :)

The thing about items like this is they are kind of limited in application, and require their own care/feeding and power. Given that you live off-grid I wouldn't want to be adding to your power draw any more than you already have. :) OTOH If you were in a small recording studio this type of device would work really well as you probably have 2 primary modes that you absolutely must kill.

What I mean by "limited" is they are tuned to a couple of room modes. They don't just eat all resonances equally. A "neater" (as in less messy) fix is bass traps plus EQ, multiple subs, or bass traps that are built into the walls themselves.

Best,


Erik
I hear ya Erik,
I wasn't really leaning towards an app for me.we hear so many times about people not having the ability to use room treatment.And was just curious about there real world effects. as for my ht room slap echo is my foe...
cheers

after the holdiays i will come visit ...
Well, for slap-echo, the Bag End and other similar devices effectiveness is zero. :-)

Slap echoes are too coherent. Bass traps, etc. rely on the energy in the bass collecting in the corners. By sucking the energy out of the corners you eliminate the ringing. But this works because the rooms ring like a bell. If you put your finger anywhere on the rim of the bell it kills the ringing.

The slap echo energy is all in the middle of the wall surfaces and the wavelengths are too short to attempt to do this. Diffusion and absorbers work fabulously though. :) In fact, with the right lighting they may even make your HT seem less cavernous.

Best,


Erik
Erik_Squires wrote,
"Well, for slap-echo, the Bag End and other similar devices effectiveness is zero. :-)

Slap echoes are too coherent. Bass traps, etc. rely on the energy in the bass collecting in the corners. By sucking the energy out of the corners you eliminate the ringing. But this works because the rooms ring like a bell. If you put your finger anywhere on the rim of the bell it kills the ringing."

Give the Room Tunes Echo Tunes a try sometime. You’ll be singing a different tune. As it were. No one ever said Bass Traps did anything room echo.

I use the Bybee Room Neutralizers (non-powered) in my room- a set of 8 does the job nicely.  The DO make the room boundaries disappear sonically, but are not going to fix nulls, peaks, and other issues.  These need to be addressed first and then when the sound quality in the room is relatively even, the Room Neutralizers will take it the rest of the way.  Good Luck!

There’s a bunch of active and passive room "neutralizers" including but not limited to SteinMusic Harmonizer, tiny little bowl resonators of various manufacture, Lessloss Blackbody, 1 GHz Ultra Tweeters, Sugar Cubes from the tiny little bowl guy, Marigo VTS Dots for walls and windows, tiny crystals for room walls from Acoustic Revive, Schumann Frequency Generators of various manufacture primarily Acoustic Revive and Mpingo disc.
...and just to add to the mix of things one can do, I ran into this tidbit.  Since I like to 'run the room' eq'd for flat response as much as practical, this seemed a tempting approach...

http://jamesromeyn.com/old-pages/home-audio-gear/dsa-1-0-distributed-subwoofer-array-5-pieces-4k-usd...

Enlist the room in fixing itself.  A simplification, sure, but interesting.  Might minimize the amount of 'stuff' needed to tame the space.

Just a suggestion...

...appealed to me as it would seem to be an easyish thing to DIY....I have a lot of other things I'd drop 3K$ on these days...
erik ,
I mispoke earlier,my post about my slap echo and using traps on the ceiling .I meant absorbing panels on the rafters ,I do not have a problem with panels and my wife is very cool .I was asking about people who are not able to run panels. Interesting info....
@erik_squires - sorry to hijack the OP, but I have a question on the Bag End. Have you actually used the Bag End E-Traps? I have a pretty good room and do not have any major bass ringing. However, I do have a huge hole around 80hz where bass just falls out (this is a room node where I’m sitting). The Double-Bass Array (DBA) configuration that is popular in Germany would probably solve my problem, but it is just not practical for me to do in my room. I have looked at general broadband absorption, Helmholtz resonators, membrane panels from GIK, etc. I tried a pair of GIK full Soffit bass traps, but I didn’t like them -- they seemed to suck all the life/excitement out of the room. I am curious about the flex-range limiter panel on their monster bass traps and the tuned membrane. I haven’t yet looked into spending money on this problem (maybe next year). My initial thoughts were to try the flex-range-limiter option. However, this Bag End E-Trap looks really effective. There is one review where the user was able to restore a big dip in the bass area. Other feedback indicates the Bag End cannot restore big dips - it can only reduce bass peaks/ringing. Do you have any experience with this?
@auxinput I'm taking this to another thread so we don't stomp on the OP's questions. :)

Erik