Axiom Home Page Forums General Discussion Home Theater My EP500 saga

How near does this person live to you? Would it be possible to invite them over for help setting up your system?

Axiom would not have made such a huge to a sub to make it sound worse. The removal of the trim setting, and changing the range of the volume knob will not make it sound any different.

Barring defects with one of your components, it is almost surely a configuration problem. I understand that it is difficult for you move things about and rewire a lot, but have you been trying anything people have suggested here? Nearly every suggestion, or even replies to your questions seem to be ignored while you go and try something else. It's hard to help you trouble shoot when you don't tell us the outcome of a test.

Someone brought a EP500 to your place and you tried it at the exact same position? If you tried it in his place and he does not have bass-cancellation room issues like you seem to have, then it does not help you at all.

Having your speakers set to large doesn't help either, which could also cause some cancellation issues. As I said in the other thread set all your speakers to small, 80 crossover and use the sub normal mode instead of the sub plus mode.

Its hard for me to judge these test because this is really my first system so I dont know what is normal but On sub normal mode on the R772 the sub doesnt work at all(thats why I think amp is defective) and as I said in the other thread my AV DOES NOT HAVE SMALL OR LARGE SETTINGS on the speakers just crossover which I have at 80hz, Distance (which I have correct)and channel level(which right now is at 0). The oppo player had the small and large settings but I didnt use those anyways so it didnt really matter that I had it at large (its at small now but didnt make a diff)And as a result of the trouble shooting here I think I have an amp problem and not a sub problem. My room is just a small bedroom so it is not eating any sound. But I think the older version has a different sound but they both still sound good. I just need to try a diff amp and see. Sorry if I didnt keep everyone updated to all my trial and error but thanks for everyones input it helped alot.

FYI, the smaller the room, the squarer the room, the worse bass you will have (bug peaks and nulls).
When the sub is playing, move around the room to see if you hear big variations. That will give you more hints than anything else.
And again, please try the sub at various locations in your room. The more room-related changes you make, the more you may know if a sub change will help you or not.
If you have bass-cancellations, you can have 4000Ws, it will get cancelled just the same.

IMHO all your bass problems are directly related to the size of your room. This type of porblem became aparent to me many years ago when i bought my first regular cab pickup. No matter how much power and eq i threw into that little area i just could not make bass. The bass wave length exceeds the area it is being played in.The bass is by all rights self canceling in that small room.

http://www.realtraps.com/art_small_rooms.htm

some good reading

Are you saying even if I am right in front of the bass if the room is small I might not hear it? Because I make my judgements when I am looking right at the front of the subwoofer. And I had the EP175 in the same spot. But I will give that link a look I didnt think a small room could eat bass but I guess it can so I stand corrected.

Yes. The frequency distribution is different at every point in the room and you can have nulls right next to the sub (I have one if I stand 1' to the right of my sub).
You need to find a place for the sub that provides the best response for the place where you will be doing your listening.
Axiom has an excellent video on how to do that.

If i sound harsh i really dont mean too. im just trying to help out as best i can. I know from other posts you are limited in you abilities. Maybe someone can come give you a hand ? On that site there is a video about mini base traps, make an effort to look at it,it will really open yours eyes,it did mine. i am now doing more reasearch on diy base traps. I am a decent mechanic but i dont know near as much as i thought i did when it comes to audio, but with the web and the help of others im learning alot.

Richard, for the sake of technical accuracy it should be pointed out that the wavelength of a bass note being longer than the room dimensions doesn't make it harder to get strong bass; the contrary is true. When the wavelength is longer than the longest room dimension it pressurizes the room and causes "room gain". The smaller the room the higher the frequency the room gain begins at. For example, consider the boomy bass possible inside a car.