GIK acoustic panels


Just installed some GIK bass traps in the room corners today and instantly solved the "sonic boom" that was happening around 35hz.A 2'x4' 244 panel in all four corners did the trick.Easy peasy:)I've got three 242 panels(for reflections) a 7" thick " monster trap ",and 4 2'x2' spot panels to fool around with now.The monster trap is VERY effective.I amused myself moving it around and could easily hear the changes.The front wall behind the speakers is the recommended position but it made the room sound dead, surprisingly.Another surprise was when I propped some panels in front of the two large windows in the room - no change at all.
So next up is getting them at the wall/ceiling junction and possibly on the ceiling without having a zillion nail holes to fill later.The panels all come with eyehooks and picture wire to hang them up.Good thing the room is not too big.16x17 cube unfortunately,so it needs a little help.I'll post the final results in a few days for those of you who are curious like I have been but hesitant.
jtcf

Showing 8 responses by jtcf

Thanks @millercarbon.I did consider making my own but GIK is able to make their traps with 'range limiters' so they will absorb a bit more bass and leave the high frequencies alone which intrigued me.It's a lot more expensive unfortunately than diy,sigh....but worth it so far to get the professional help and support from GIK and to fine tune the room.They have such a variety of diffusers,scatter plates,etc. that's beyond my expertise.Plus they are returnable so I took the plungešŸ™‚
@erik_squiresĀ  my speakers are (shhhh) Tekton Impact Monitors.Today I moved everything out of the living room and played around with positioning the panels and speakers.Right now it's sounding pretty darn good.The four corners have the 244s with range limiters plus the 2x2 spot panels(range limited) resting on top so it's almost floor to ceiling.Tomorrow I will hang the 244s by themselves so they are touching the ceiling and experiment with placement of the spot panels.The monster trap is behind the console on the front wall along with all three of the 242s.One is on top of the monster (think letter T).The 242s had no effect on each side to capture reflections there.I propped one behind my listening chair and didn't care for that much absorption.Diffusion would be better or perhaps even a wall hanging,or leave well enough alonešŸ™‚

So anywho,I'm really happy with the smoothed out bass.The windows are not the problem I thought they were at all!In my squarish room the front wall and corners seem to be most important.Next up is treating the wall/ceiling junction.I'll move the spot panels around singlely and in groups and see what happens.
Thanks slaw!I'll check with you first if I end up needing more.Still moving the panels around and experimenting....
Today I foundĀ  permanent spots for the panels on the front wall.1. Monster trap centered behind the stereo 2.The 244s straddling both corners on top of matching bookshelves so they touch the ceiling withĀ  a 2x2 spot trap also on top of the shelves in front of of the larger traps.(each of those traps have range limiters,less highs absorbed).I tried two largeĀ  panels together on the shelves but it sounded overdamped.

So now there's seven more panels to mess with:)
I'm interested to see how the sound changes when they are next to the ceiling/wall junction as opposed to just centered on the wall.Also I'm curious about panels on the ceiling....
No worries.The new speakers have more bass energy and just needed to tame a 'thump' in my (unfortunately) square room.The thump is banished.Just experimenting with fine tuning now.
Michael your spot treatments are very attractive aesthetically and I understand how treating the reflection points precisely could be effective.The hard surface of the wood seems counterintuitive though.Shouldn't the wood be a diffusion panel?
Michael I do remember seeing your products way back when:)You actually inspired me to experiment with 'tuning'the speakers I owned at the time to dampen and tighten up the bass.I also made some pillows and thumb tacked them in the alcove behind the speakers in our former house to good effect.
You have some interesting products and theories and thank you for posting more about them.

Another thing that I find fascinating is how way back in time how jugs filled with different levels of sand and stones were used as acoustic treatments in amphitheaters.Then there are the old churches,theaters,etc. that sound amazing and perfect.Acoustic perfection to me is my aural memory of concerts at the old Fox Theater in Detroit.
Thank you Michael!I did some more reading last night and came across more info on panels that use wood on the front combined with rockwool and air gaps.I more fully understand how that works and it's effectiveness.I welcome any and all opinions that inspire me to investigate and learn something new:)

Anywho,I managed to find the final positions for the GIKs just today.So yay!After moving them every which way, they have ended up layered together in each corner touching the ceiling.There's a huge positive difference getting them off of the floor and in that critical junction where the ceiling and walls meet and HEAVILY trapping the corners.There were two corners with nulls and the other two had quite a bit of bass build up.Now those areas have been smoothed out and everything is sounding great.This is in a pretty close to square room,so if it can be "tuned" satisfactorily without being overdamped there is hope for those of us with small rooms:)

This all came about after replacing my little Sunfire bookshelves with a more dynamic speaker(Tektons).Before when the subwoofer handled most of the bass it was juuust right.Now it's just right once again and I'm really liking the more authoritive "live" presentation.The only other thing I may add is a diffusion panel behind the listening position.So done for now,and I'll get some pics on my page in the next week or so along with the precise recipe for getting better sound in a less than ideal room for any who are curious.