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Re: I Graphed...Now What?
Ken.C #255361 04/03/09 09:32 PM
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are your mains angled inward or straight out? I found by adjusting my 80's further away from the side and front wall, and playing with toe-in, it helped that dip, as did the bass traps.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: I Graphed...Now What?
SirQuack #255363 04/03/09 09:36 PM
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Zimm Offline OP
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I'm heavily toed in right now to nail the image dead center. My room is small, 1700 cubes I think, in case that matters.


Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire
Re: I Graphed...Now What?
Ken.C #255371 04/03/09 09:52 PM
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It's nothing a set of M80s can't fix \:\)


Rick


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

Re: I Graphed...Now What?
Wid #255380 04/03/09 10:03 PM
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With the downloaded calibration settings, the RS meter is good to about 3000hz.


Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70
Re: I Graphed...Now What?
jakewash #255381 04/03/09 10:05 PM
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Mojo was heavily toed in as well and found he liked his M80s even more with just a little toe-in.


Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70
Re: I Graphed...Now What?
Ken.C #255386 04/03/09 10:09 PM
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Zimm Offline OP
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 Originally Posted By: kcarlile
300Hz is awful low for the thing not to be effective. You might not want to sleep that well at night...
I'm just filling time until someone who can say something useful comes on. \:\)

Thanks, that's just what i was hoping for.
[runs off telling the wife to fire up the car, "got to get a new microphone!"]


Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire
Re: I Graphed...Now What?
jakewash #255387 04/03/09 10:09 PM
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I had read that the RS meter was good to around 2000Hz so that agrees with what Jay wrote.

That dip at 70Hz is common in our rooms and often relates to a room height mode. Corner bass traps may help and you can also try traps above the listening position (didn't make any difference for me though).

Both corner traps and thinner (2") traps at first reflection points should help with the dip at 300Hz. Changing speaker position can also help here.


Fred

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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
Re: I Graphed...Now What?
Zimm #255388 04/03/09 10:11 PM
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3000hz?????????? Oh, I have a mess on my hands. I have not even run it that high. I doubt it will get better.


Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire
Re: I Graphed...Now What?
Zimm #255437 04/04/09 01:53 AM
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Charles, reflections from room surfaces cause partial cancellations at roughly a quarter wavelength from those surfaces. The dip around 70Hz may be a wall bounce at about a four foot distance(1130 ft. per sec/70 Hz= 16 ft.). Are your speaker drivers about four feet from one or both walls? The dip around 280Hz appears to be a floor bounce similarly calculated arising from about a one foot distance. You need to move your walls and floor.


-----------------------------------

Enjoy the music, not the equipment.


Re: I Graphed...Now What?
JohnK #255450 04/04/09 05:47 AM
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I agree Jay, Zimm I would experiment on the toe-in angle. Having them aimed right at you narrows the soundstage overall width. Like Mojo, I used to do the same as you. I have found pointing them at a point about 2-3 ft behind me gives me a much better sound stage overall where instruments take of the whole width, and the voices are dead center, appearing to come out of the center channel, as they should. Probably will help your graph dips. Also, you don't want the drivers the same distance form the side and front wall.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


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