Axiom Home Page Forums General Discussion Home Theater EP125 Problem ?

Sorry John,
In my last post i said i have M60's up front. Must have been wishful thinking, the mains are M50's.
Yes you are right, i bought the EP125 before the others thinking i was getting bookshelves. Maybe the answer is just get a bigger sub.
But i will try your suggestions and see what happens. Thanks for the reply,
Neil

>>Must have been wishful thinking, the mains are M50's.

No problem. I understand the M50s are pretty good in the bass department as well. Good luck with the experimentation.

The answer is definitely to get a bigger sub but with luck you can postpone it until you are ready to get that big honkin' sub you really want

Just to add to my earlier post. The sub is right in a corner and the mains set to "large"

What was your crossover on the sub set to ? I'm guessing you had it set high so the receiver could do the filtering.

Yes, that is correct. I set it as per Axioms recommended "Receiver and Subwoofer Crossover Setup" from their web site

Good. Take a deep breath, ignore the recommendations, and crank the sub crossover down to 40-45 hz. Then play your movies again and see what happens

I assume center and surrounds are still set to "small". Some receivers will route the low notes from those channels to mains (if set to large) AND sub, other receivers seem to just route low notes to the sub. I think my HK just routes to the sub, not sure.

Depending on how your receiver works, you *might* notice some missing bass from the center and surround channels but I *think* you should be OK.

It's also possible this won't make enough difference if all the LF content is under 40 hz anyways, only one way to find out.

Yes all the speakers are set to small except the mains.
The receiver is Yamaha RX-V550 and is set to 80 hz.
Do i do the change on the receiver or sub ?
Thanks again.

Do the change on the sub. Leave the receiver crossover at 80 hz. Also check the "Bass Out" setting on the receiver and make sure it is set to "BOTH" (you have three choices -- SWFR, FRONT, BOTH). This will make sure that the low frequencies from surround and center go to the M50s AND the EP125 so they can share the load.

[EDIT] I downloaded a manual for the 550, can you tell ?

Finally found time to try it. Seemed to make the situation a little worse. I had to turn the receiver volume down to -34db before it would stop rattleing. At that level i could hardly hear the movie. Finally arrived at setting the sub at -10DB on the recever (its lowest level) and setting it at 10 to 12 on the sub. Still small amount of vibration at the peaks.
But this greatly reduced the lows.
Will start saving for another sub, as that seems to be the only answer. This could be thread of what sub to buy ?
Thanks for your trouble and time bridgeman.
Much appreciated.

Hmmm. That's not what we want. Was the "Bass Out" already set to "Both" ?