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#340448 - 02/28/11 11:24 PM Re: On wall crossover settings? [Re: JohnK]
TonyN Offline
frequent flier

Registered: 01/26/11
Posts: 19
Loc: Virginia Beach, VA
Thanks for the replies.

Note: Keep in mind I am trying to "take the next step into calibrating". LOL

I have always calibrated levels, distances, crossovers and etc without any issues (basic stuff). What I am looking to do is use my SPL meter (connected to my laptop) to record some Hz sweeps. I'd like to see some graphing of my SPL so that I tune my Sub (PEQ) and crossover settings a little better.

Like right now if I run a sweep from the Disney WOW disc, the SPL meter jumps up or down 6db's in the lows and a little around the crossover point. Otherwise it isn't to bad. But I have no clue where exactly these dips/rises are occurring (at which frequency)to even begin tweaking. My PC13 Ultra has the PEQ adjustments so I can add or take away some db at certain frequencies.

Long story short, I'd like to have a "flatter" line throughout the frequency response. How do I go about this? I had planned on using REW or something similar.

Sorry for not making that clear. Thanks for any help.

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#340450 - 02/28/11 11:39 PM Re: On wall crossover settings? [Re: TonyN]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13675
Loc: Iowa
Tony, you can test and tweak and drive your self crazy. I've spent countless hours using the real traps sweeps in 1hz increments, REW, SMS-1, filled the room with bass traps and acoustic panels (gave me the most improvement), etc.. All of these things help to a point. But, unless your using multiple subs placed correctly on opposite walls, your not going to accomplish a lot in flattening the frequency for all seating locations. Sure, you might make a difference in your primary seat, but as soon as you move a foot in either direction, or move your sub a bit, it will sound totally different. If you only have 1 sub, I would say place it close to a corner that is furthest from the largest opening of your room into the rest of the house and enjoy your Axioms.
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#340467 - 03/01/11 08:04 AM Re: On wall crossover settings? [Re: SirQuack]
TonyN Offline
frequent flier

Registered: 01/26/11
Posts: 19
Loc: Virginia Beach, VA
Thank you for the honest input. So basically it is just best if I keep things simple as I'd be wasting a lot of time.

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#340475 - 03/01/11 09:47 AM Re: On wall crossover settings? [Re: TonyN]
billy p Offline
veteran

Registered: 08/25/09
Posts: 179
Loc: Markham, Ont
Whew...I was considering upgrading my SQ and running some REW sweeps. In the back of my mind I always wonder what if? Your post below kinda put my mind to rest on the embarking task I was about to undertake. cool

Thanks, Bill.... smile

Originally Posted By: sirquack
Tony, you can test and tweak and drive your self crazy. I've spent countless hours using the real traps sweeps in 1hz increments, REW, SMS-1, filled the room with bass traps and acoustic panels (gave me the most improvement), etc.. All of these things help to a point. But, unless your using multiple subs placed correctly on opposite walls, your not going to accomplish a lot in flattening the frequency for all seating locations. Sure, you might make a difference in your primary seat, but as soon as you move a foot in either direction, or move your sub a bit, it will sound totally different. If you only have 1 sub, I would say place it close to a corner that is furthest from the largest opening of your room into the rest of the house and enjoy your Axioms.



Edited by billy p (03/01/11 10:22 AM)

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#340488 - 03/01/11 12:21 PM Re: On wall crossover settings? [Re: TonyN]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13675
Loc: Iowa
You want to do a basic setup with an SPL meter and receiver tones and/or the built in Audyssey or other setup routines. It is important to have distances, crossovers, etc. setup correctly. Also, you can experiment with sub location, often the famous Alan sub crawl is what most of us use to find a good sub location.
_________________________
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB SonyUBPX800



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