 Re: 3dB frequency point of my M3's?
|
Joined: Oct 2009
Posts: 110
veteran
|
OP
veteran
Joined: Oct 2009
Posts: 110 |
I have to confess not seeing anything on the graph that corresponds with what has been posted.... but then I don't really know what I'm looking at, exactly.
The thing is the frequency knob on my sub only controls the sub.
Aunty Em
Tampa, FL
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: Jun 2003
Posts: 6,833
axiomite
|
|
axiomite
Joined: Jun 2003
Posts: 6,833 |
The specs for the M3 is -3db at 60HZ. I would set the sub at 80HZ, that should be a pretty good spot for the setting.
Last edited by wid; 02/15/11 07:43 PM.
Rick
"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: Feb 2009
Posts: 3,466
connoisseur
|
|
connoisseur
Joined: Feb 2009
Posts: 3,466 |
Using the control on a subwoofer makes it a lot harder to have a smooth transition from the mains to the sub, than it is when using a receiver's crossover setting.
Most of the time the sub's control is a low-pass filter, and not an actual crossover (a crossover being a low-pass paired with a high-pass).
I find it much easier to set up the subwoofer, by totally disregarding the numbers, and doing it by ear (or SPL meter). You'll need to find a low frequency sweep sound. Play that on a loop. Start with the subwoofer's filter setting rather low. There should be a dropout in sound pressure level between the filter point and where the main speakers take over. Gradually raise the setting on the sub until you get a smooth frequency response through the whole transition range. That's where it should be set regardless of what the number says.
Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: Oct 2009
Posts: 110
veteran
|
|
OP
veteran
Joined: Oct 2009
Posts: 110 |
Using the control on a subwoofer makes it a lot harder to have a smooth transition from the mains to the sub, than it is when using a receiver's crossover setting.
Most of the time the sub's control is a low-pass filter, and not an actual crossover (a crossover being a low-pass paired with a high-pass).
I find it much easier to set up the subwoofer, by totally disregarding the numbers, and doing it by ear (or SPL meter). You'll need to find a low frequency sweep sound. Play that on a loop. Start with the subwoofer's filter setting rather low. There should be a dropout in sound pressure level between the filter point and where the main speakers take over. Gradually raise the setting on the sub until you get a smooth frequency response through the whole transition range. That's where it should be set regardless of what the number says. When you say "the receiver's crossover setting".... you mean the tone control? i.e. "bass" knob? (I'm using a very vintage receiver btw..) thx
Aunty Em
Tampa, FL
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: May 2003
Posts: 18,044
shareholder in the making
|
|
shareholder in the making
Joined: May 2003
Posts: 18,044 |
Yeah, if you're using a vintage receiver, you won't have a crossover in it.
I am the Doctor, and THIS... is my SPOON!
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: Sep 2004
Posts: 11,458
shareholder in the making
|
|
shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
Em, newer receivers split out the bass frequencies and send it out to a "Subwoofer Out" jack on the back...
You have control at which frequency this split happens in a receiver.
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: Feb 2009
Posts: 3,466
connoisseur
|
|
connoisseur
Joined: Feb 2009
Posts: 3,466 |
You were doing it the only way you can. The knob on the subwoofer that is probably labeled Crossover (even if it isn't technically that).
Oh, the volume of the subwoofer should also be set when the filter point is low, so the output of the sub, and the output of the main speakers is equal. So when you start to raise the filter frequency the two will meet at equal levels.
Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: Feb 2009
Posts: 3,466
connoisseur
|
|
connoisseur
Joined: Feb 2009
Posts: 3,466 |
What subwoofer model do you have, by the way?
Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: Oct 2009
Posts: 110
veteran
|
|
OP
veteran
Joined: Oct 2009
Posts: 110 |
it is an Infinity SSW 10. $$ extremely limited at the moment...someday I'll buy one from Axiom. Actually, I glad I got the M3's when I did. But this sub isn't bad by any means...its just I have not much control over the whole deal. I got to wondering about the whole thing while trying to decide whether to even use the sub for turntable listening or not. We'll see! lots to think about and the music is sounding good!  again, thanks to all who piped up with info.
Aunty Em
Tampa, FL
|
|
|
Re: 3dB frequency point of my M3's?
|
Joined: Sep 2004
Posts: 11,458
shareholder in the making
|
|
shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
Does your receiver have an infrasonic or rumble switch? No gang references, Bob!
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
|
|
|
|
Forums16
Topics24,943
Posts442,465
Members15,617
| |
Most Online2,082
Jan 22nd, 2020
|
|
|
0 members (),
667
guests, and
4
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
