Axiom Home Page Forums General Discussion Home Theater AT screen how to for existing/impossible walls

I hear nuances with the 600s that I don't with 500s. Canes, if you don't believe me, get a 500 and try it out against a 600.

The 500s double as seats though or as supports for benches so they've got that going for them.

I had the 500 to start and it just couldn't fill my room by itself. The 600 was a huge improvement and it gets loud. I'll eventually have dual 600s down there if the wife doesn't kill me first.

Hi @TrevorM

Thanks for sharing the pictures. The home theater looks awesome. I am looking to build something similar. I have 158inch acoustic transparent screen (144 inch width and 69 inches height) in 16 feet by 21 feet room (with 9 foot ceiling). I would like to know the speaker placements for the ONM5HP speakers. What should be the tweeter height and how far should it be from the left and right walls. I have a single row of seats so is 32inch tweeter height optimal height for the tweeter ? The screen has 4 inch frame and I was thinking of having all three LCR behind the screen. How much gap should exist between the speaker and the screen ? Is 1/2 inch to 1inch sufficient or do we need more space between the speaker and screen. Also how far should I place the left and right speaker from the wall. Since the screen is 12 feet wide and the screen has 4 inch frame. You mentioned about some room mode avoidance ratios identified by Grimani. So can you share the #s that would work for my room in private message or here. I was thinking some thing along the lines of (half the speaker width)11.5/2+24 (distance from the screen from side walls) + 5 (width of the frame + one inch clearance ) = 34.75. I already have polk monitor 70 series II and polk monitor 40 speakers so I am planning on using them for the surround duties. Any recommendations on speaker placements is also helpful. Would you recommend the same ONM5HP for surround speakers or is it best to use smaller ONM3 speakers ? Thanks in advance.

Hi Chiru.

If you want send me a pm with your email, real first name, and exact room dimensions including your door location. I will give you a floorplan with measurements when I can get to it. Maybe this weekend. With this help we would have an understanding that you would be purchasing Axiom products to complete your build if required, and share results in your own thread here. Deal?

After I give you the initial floorplan you can share it, post for feedback or do as you want. I just dont have time to design via forum back and forth these days.

I’m pretty sure I couldn’t.

What source material are you using?
How do you know which is more accurate v.s. a preference?

I’m surprised it made that big of a difference… I thought it went lower but not much louder (at least spec wise …).

My first reaction for a big room would be to add more subs and spread out the sources…

I was a little astonished too but the 500 no matter where I moved it or how loud I turned it up it just didn't match what the 600 ended up putting out. Possibly having multiple 500s would be sufficient but with just a single sub it was lacking.

I am less of an old fart than you.

It's the difference between 12Hz vs. 20Hz on the low end. The 600 and 800 put out growls, articulation and LFE that the 500 cannot. Is that accurate or not? I don't know. I know only of emotion. Similar to tubes, vinyl and M3s I suppose. Those are not accurate but they sure sound nice too.

For a dual sub setup does the $1200 dollars saved buying dual EP500s instead of 600s and upgrading all other channels make more sense? I vote yes. I steer builds this way. Placing subs properly and time aligning can increase output SUBstantially..

Sub 20hz material is fun! No doubt! But I’d rather grin all the time than grin and chuckle 5% of the time. I love power of upperbass. Shudder of sub 20hz can be terrifying though. Hmmmm….

So if you can afford em. Hell yeah!

Fwiw, I have 4x EP500s in a sealed 2400 cu.ft. room at home. EP500s are my go to for installs. Perfect blend of smallish footprint and freakish output.