Erm, yes they are skylines. They`re what the BBC came up with.
I cant imagine they still use them though as they look clunky. The BBC will have spent our licence fees on something more hitech and fashionable by now which probably does the same job but blends in better. http://www.pmerecords.com/Diffusor.cfm

I cant be sure but I think you`re talking about something like this dispersion method which looks easier to build.



from the page http://www.reddit.com/r/audioengineering/comments/j0zky/diffusers/

Those are fractals syd.  Luke what raven and I bought.  Google qrd7 and you'll see what I am talking about.

Rob, I am thinking about where to hang them

Skyline diffusers are good enough for Skywalker Ranch - I figure they are still good enough for the BBC.  Each device is a tool for adjusting the sound in your room. There is some science, but in the end, even the installers say that after all the math and measurements, the final tweaks are by ear. So if you have room treatment, put them wherever sounds good for you.

Quote:


Dave1210 - I'm really curious to hear your opinion!  I find though that with the 244 w/ scatter plate at the 1st reflection point, if your system has any tendency toward sibilance or accentuated high frequency energy it can be a bit much at the listening position.  I think it scatters from 2.5 to 10k.  I struggled with it today.  I'm not going to move them though, I have other workarounds in mind on the cabling and tube front.

Raven, I've tried plain ol' absorption with the 244 traps I currently have mounted in the back right corner.  To me, it kills the some of the music.  I like having the additional energy in the room, even if finding the right balance is a challenge.  As you know, my speakers are slightly "laid back", so I believe over absorbing at 1st reflection is a no no.

I'm available most of the day today if you want to pick up the diffusers.

GIK 244  w/Scatter Plate at  First Reflection, should be easy to see the scatter plate in the 244 panel
GIK 242

Thanks Rob.  I will post a few more pictures.  I think the room is part of the problem…or all of it ; )

Diffusion first, reflection….

I really like how bright it is.  Because my room is in the basement, most of my friends comment that it's like Vegas down there: where time goes to die.

I'm with you. I had a dedicated room, smaller than my last living room / dining room space that I moved into fromt he dedicated room. I loved the big room much more and enjoyed the big room and also the comfort of sharing it with others. Looking forward to that again in a few months!

Great sound comes in many ways!

I had friends over today - turned into an impromptu listening session.

I think I have a diffuser problem.  :)



It's kind of haphazard - but I broke out just about everything I had and we moved stuff around while listening. By the end, friend (not audiophiles) kept asking what amp was driving the center channel. They couldn't believe this was "just stereo".

Still, not the best sound I could have if I had a dedicated room to work with. I'm still driving for clearning out the basement and setting up something down there. But I have a feeling this is going to be a long and difficult journey.

Oh, and we finally decided tonight that the Zu Audio are just too brash/harsh for critical listening. Went back to my default MG944 today and everyone listening (including non-audiophiles)  pretty much breathed a sigh of relief. The 944 while not having the depth and room filling sound of my Omen bII, just are smoother and more dynamic/faster. Which is kind of funny because the 944 sound slightly etched compared to the El Camino.

I have been playing with making the room more lively.  

I took 4 - 2' absorber panels and stacked 2 each against the 4" bass traps on each side.  Gives me 8" of bass trap per side (not counting the corner bass traps up high).

I like the more lively room and the extra thickness in the bass traps seems to help with my problem bass frequency.

I keep trying to convince myself the front of my L shaped room is symmetrical, but indeed it is not.  The wall on the left doesn't go up to the ceiling.  I probably don't have the bass issues most do because those very long waves have somewhere to escape, but I wonder what the impact is on the rest of the soundstage.

The only thing that works for me in my dreaded L shaped living room are the ERRx speakers. They sound awesome. I tried four other types of speakers, Janszen zA2.1, Goldenear Tritons, Monitor Audio GX300 Gold. And none worked well. I still have all except the Goldenear. Actually the room is worse than just L shaped. It opens into a foyer in the back then into the kitchen, dining and has all glass on one side.

I have both HR-1s and ERRs (the model before this current one).

In a sense the ERRs are special. The HR-1s DO do quite a bit of what the ERRs do, and to an extent I think that helps them to be more flexible in a room. The HR-1s also offer a more specific instrumental shape and image than the ERRs. I love them both. ERRs are excellent with classical and jazz and folk music and have a toe up on the HR-1s in these genres in some rooms. HR-1s have a bit more of an edge on rock and electric-based music, more concentrated punch and delivery. Both are exceptional speakers.

Eventful few days here at ProggRob's joint.  I was running some frequency sweeps I downloaded long ago from Realtraps, and around the 50hz mark are heard a really loud metallic rattle coming from behind the speakers.  WHAT WAS THAT??  I wondered.  Well I walked around back of the OBs and found a washer on the mounting screws which attach the driver mounting plates to the baffle that was completely loose.  So I checked the others, all very, very loose (all 24 of them).  So I tighten everything up feeling half embarrassed and half excited that my sonic potential was heretofore completely unrealized with loose drivers in the rig.  I sit back down the listen, and the presentation tightens up all around, bass improves and micro detail takes a large step forward.  Feeling emboldened, I decide to play with my plate amps for the 10^9th time to see if this newfound bass integration will yield a way to increase the frequency output of the Augies up towards 100hz.  I changed the roll-off from 24db/octave to 12/db, bump the crossover point to 55hz and dial in the volume.  Nice.  Been listening for a couple days like this.  Really nice.  So finally having sold some gear I hit up Music Direct to see what I can blow money on and find Roomtunes Cornertunes, 4 for $160 to treat the remaining untreated corners in my room.  Anyone have experience with Michael Green's products?  Anyhow, I had other plans for equipment sale money but with this bass I'm experiencing I decided to invest in it a bit more.  The treatments arrive tomorrow, just in time for a road trip to Michigan on Saturday 😢

Dave1210, I am driving the ERRx with a Torii MK3 and now with ZDSD from computer server. This is wonderful combo. I don't see a reason to upgrade the Torii3 at the moment but the 6C33 monos will be intriguing. Can't stop the itch.

Well I don't care what she says I think it looks terrific