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#267754 - 07/31/09 10:15 PM Re: Changes to EP500? [Re: SirQuack]
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6720
Loc: The Peoples Republic of Il.
 Quote:
Most of us have our EP500's and EP600's set very low, around 6-7 o'clock on the knob.


This is true with most sub manufactures not just Axiom.
_________________________
Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


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#267755 - 07/31/09 10:15 PM Re: Changes to EP500? [Re: Wid]
th3at3rguy Offline
veteran

Registered: 06/10/09
Posts: 142
Loc: Michigan
Its my bedroom so this is a small room and I have The entertainment system in a corner with my QS8s on each side of my Bed and the sub parked halfway in the open closet but it isnt really blocked by anything. But like I said I was only getting this in some recordings these really low rumblings it wasnt recorded that low so what gives? The subsonic filter is on so either the filter is faulty or my setup. I wont know til I get a pro then if he says its the speaker they can send me another amp and I will put it in myself. Its a new design so who knows maybe the filter wasnt put in by mistake.


Edited by th3at3rguy (07/31/09 10:17 PM)

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#267756 - 07/31/09 10:18 PM Re: Changes to EP500? [Re: Wid]
grunt Offline
connoisseur

Registered: 12/04/06
Posts: 3569
Loc: Nirvana
The reason for the EP500 over the EP175 is to have something that plays lower with more authority. For most music it’s output is total overkill as is any other really good subwoofer which is why having it turned up will give you way to much deep bass.

Are you having this problem when listening to music in 5.1/7.1 or are you just using 2.1. If it sounds fine in 5/7.1 but not 2.1 then there is probably an menu option in the receiver to set up 2ch stereo + sub. You may need to change the setting here to match what you’ve set for 5/7.1.

If the sub sounds to weak after using your SPL meter and calibration disk then you may just be someone who likes a lot of bass. The calibration gives you a good starting point but many people tweak the final setting to taste from there. However, before automatically tweaking everything It’s often beneficial to use the base settings for a while as you may actually like them realizing you actually had to much bass before.

I mentioned placement before and should reiterate that sub and seating placement are the first places to start when calibrating your system. You may not have much placement flexibility but if you do the first try finding the best location for the subwoofer.

If you haven’t already read them here are several articles here that can help you setup your subwoofer and integrate it to the rest of your system.

Articles

This one for placement:

How to Find the Best Place for Your Subwoofer
_________________________
3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1

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#267757 - 07/31/09 10:19 PM Re: Changes to EP500? [Re: Wid]
th3at3rguy Offline
veteran

Registered: 06/10/09
Posts: 142
Loc: Michigan
6 or 7 o clock is barely on why have such a powerful sub if your not going to use it? Or when does one ever turn it up? I really dont know anything about this stuff guys so feel free to explain. I just dont get it. Its all in 5.1 what I listen too even my 2 channel is in 5.1. All my Live music sounds fine its just some recordings all my SACDs for one. Movies sound fine also. But someone here said that there is subsonic noise from the studio that is left because normally it cant be heard but now with these subs it can and thats what the subsonic filter is suppose to do. I hope I just have it set wrong but more and more I am thinking the sub sonic filter is not working is there any way to check???


Edited by th3at3rguy (07/31/09 10:30 PM)

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#267758 - 07/31/09 10:28 PM Re: Changes to EP500? [Re: th3at3rguy]
fredk Offline
axiomite

Registered: 12/06/07
Posts: 7047
Loc: Canada
 Quote:
Jeez why did they even recommend the EP500 with my stuff if it is so much of an overkill?

Hmmm, its always hard to tell what someone is looking for. Any of the EP350/400/500 are quite a step up from the 175 and will produce a lot of volume in a small room. They represent the current state of subs. The EP175 is quite dated.

The other thing that you get is much better performance below 40Hz. You will notice it on classical music and any thing with a lot of synth. I'm waiting for you to play your first movie.

Unfortunately you cannot separate the higher volume from the better performance below 40Hz in most subs You get both or neither. You don't need to use all that extra volume you have, and you will begin to appreciate the better performance below 40Hz with movies and any music below that range.

As for the EP175 being a better match for the M22s, thats no more true than saying its a better match with the 60/80. Maybe if you are playing only music with content above 40Hz in a small room, but in any other situation I would disagree.

Get your sub dialed in to your taste, listen for a while, and then let us know what you think.
_________________________
Fred

-------
Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!

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#267759 - 07/31/09 10:29 PM Re: Changes to EP500? [Re: th3at3rguy]
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6720
Loc: The Peoples Republic of Il.
You are focusing on the "volume knob". It IS NOT a "volume knob", it is for gain. You will be using the power of the 500 when you match levels like was mentioned several times.

Just like any other pre amp the sub out from the receiver has a lot to do with how much the "gain knob" is turned up. It sends a low level signal to the sub amp were it is amplified, which varies per receiver used. That's why the sub, any sub, has variable gain control.
_________________________
Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


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#267760 - 07/31/09 10:31 PM Re: Changes to EP500? [Re: Wid]
th3at3rguy Offline
veteran

Registered: 06/10/09
Posts: 142
Loc: Michigan
Well it says volume right next to it so I called it a volume knob. Tell axiom its labeled wrong. Just kidding I get what your saying.


Edited by th3at3rguy (07/31/09 10:35 PM)

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#267761 - 07/31/09 10:32 PM Re: Changes to EP500? [Re: th3at3rguy]
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6720
Loc: The Peoples Republic of Il.

It very well might but in reality it is a gain control.
_________________________
Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


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#267762 - 07/31/09 10:42 PM Re: Changes to EP500? [Re: th3at3rguy]
grunt Offline
connoisseur

Registered: 12/04/06
Posts: 3569
Loc: Nirvana
 Originally Posted By: Guy

6 or 7 o clock is barely on why have such a powerful sub if your not going to use it? Or when does one ever turn it up?

Like EFalardeau said the reason for the gain knob on the subwoofer is to balance it with the rest of your system. Different receivers and preamps can have different output strength going to the subwoofer. The gain knob allows you to adjust the signal going to the subwoofer so that the subwoofers output is roughly in balance with the speakers. If you had a very weak receiver you would turn it up more but since you have a good receiver you don’t need to.

From there you fine tune all the speakers and subwoofer with test tones and an SPL meter to balance them all. And then if you’re like me you write that down to use as a baseline (so you don’t have to recalibrate again) and then start turning up the subwoofer and surround/back speakers higher where you really like them.

The filter will cut out whatever is below the level it’s set for 20Hz 15Hz not sure. I guaranty you that sound in the 20-25-30-35-40 Hz range will shake the crap out of your room and no sane subwoofer manufacture is going to filter those frequencies out.
_________________________
3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1

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#267763 - 07/31/09 10:52 PM Re: Changes to EP500? [Re: Wid]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10395
Rick, just for the sake of technical accuracy, those controls aren't actually gain controls, even if some manufacturers use that term. Amplifiers, including those in subs, have a fixed gain, typically around 30dB, which increases the incoming voltage on the order of 25-30 times. That doesn't vary. What is varied by that loudness control(which is a variable resistor)is the proportion of the incoming voltage that is sent into the amplifier to be subjected to the fixed gain. At the highest setting essentially all of the incoming voltage is let through to be amplified, while at the lowest setting nearly all of the incoming voltage is blocked.
_________________________
-----------------------------------

Enjoy the music, not the equipment.



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