Setting crossover help needed.

psbfan9

psbfan9

Audioholic Samurai
I really don't get the crossover thing. I have a pair PSB Alpha B1's for mains, a PSB Alpha C1 center, and two PSB mites for surrounds. My sub woofer is an Audio Pro Sub Evidence MK11.
Right now I have the mains set to 70hz, the center set at 60hz and surrounds set to 50hz.
On my Onkyo 608 I can set crossover. The manual says that 80hz is THX setting recommendation, if, your speakers are THX certified. I don't know if my speakers are THX certified, but I doubt it. Then in the 608 manual it says to look at the speaker manual and set the crossover accordingly. ???.
Yeah, okay.

All settings are done through the receiver.

LFE level(?)what ever that is: is set at 90hz

B1's: LF cutoff-10db-----55hz

C1: LF cutoff-10db-----52hz

Sub woofer: Amplifier(RMS): 150w. Woofer:8inch

Subwoofer: Frequency range:27-100hz Low pass? can be set with dial on sub from 50hz to 100hz, 24db/octave
Highpass filter? 100hz, 6db/octave

Please be gentle in your response, I have no idea what I'm doing.
 
Last edited:
AVRat

AVRat

Audioholic Ninja
80 Hz for LCR, 100 Hz for mites, crank the sub's x-over all the way up. Run Audyssey with the sub's x-over all the way up.
 
psbfan9

psbfan9

Audioholic Samurai
80 Hz for LCR, 100 Hz for mites, crank the sub's x-over all the way up. Run Audyssey with the sub's x-over all the way up.
Thanks!

I'll run audyssey after the Bears vs. Packers game. Changed other settings per suggestions.

Okay, is the subs x-over the 'level dial' or the 'low pass frequency dial' on the back of the sub?

What about the LFE setting? Does that matter? It's set to 90 now.

Man, where do you guys get this knowledge?
 
Z

zumbo

Audioholic Spartan
Thanks!

I'll run audyssey after the Bears vs. Packers game. Changed other settings per suggestions.

Okay, is the subs x-over the 'level dial' or the 'low pass frequency dial' on the back of the sub?

What about the LFE setting? Does that matter? It's set to 90 now.

Man, where do you guys get this knowledge?
low pass frequency dial on sub. all the way up.

level dial on sub. 12 o-clock.

LFE in receiver. 80.

run audyssey after settings.;)

Audioholics.com
 
caper26

caper26

Full Audioholic
Here is some info to help you understand what is going on:
The Crossover (aka: XO) in the receiver is simply a frequency filter. What does it do? It determines the "frequency boundary". This is where frequencies are 're-routed' to the sub, instead of being played by your mains (and other speakers). If you have 2 XOs (one in the receiver, and one in the subwoofer), what you wanna do is set your XO on the sub to MAX or, if there is a switch, turn it off, and use the one in your receiver. What your calibration software of the receiver does is set the filter high enough (for the sub) so that is "mates" with your other speakers in terms of frequency. For example: My Energy Take FPS are rated to 60 Hz. This is a very generous figure, and they do not play frequencies near this number very well. I set my XO (your "LFE Setting") at 100 Hz. First reason is I like a lot of extra bass. Second, the frequency response of the speaker below 100 isn't that great (according to my room, and my ears). Also set the phase to 0 if you have one. I hope this helps a bit.
 
psbfan9

psbfan9

Audioholic Samurai
Here is some info to help you understand what is going on:
The Crossover (aka: XO) in the receiver is simply a frequency filter. What does it do? It determines the "frequency boundary". This is where frequencies are 're-routed' to the sub, instead of being played by your mains (and other speakers). If you have 2 XOs (one in the receiver, and one in the subwoofer), what you wanna do is set your XO on the sub to MAX or, if there is a switch, turn it off, and use the one in your receiver. What your calibration software of the receiver does is set the filter high enough (for the sub) so that is "mates" with your other speakers in terms of frequency. For example: My Energy Take FPS are rated to 60 Hz. This is a very generous figure, and they do not play frequencies near this number very well. I set my XO (your "LFE Setting") at 100 Hz. First reason is I like a lot of extra bass. Second, the frequency response of the speaker below 100 isn't that great (according to my room, and my ears). Also set the phase to 0 if you have one. I hope this helps a bit.
Yes, this helps. Thank you.
 
psbfan9

psbfan9

Audioholic Samurai
LFE and LFE level?

Hm, maybe I don't get it. Going through my receivers menu to make sure I had things set correctly, I noticed there is a LFE (in speaker setup) and a LFE level (in audio adjust). The LFE is set in HZ and the LFE level is in dB. I have the LFE set to 80hz as suggested and the LFE level set at -10dB.


Does this sound correct?

Thanks
 
AVRat

AVRat

Audioholic Ninja
No, this lowers the LFE signal volume level alone if necessary. To get the full unattenuated signal it should be set at 0dB.
 
caper26

caper26

Full Audioholic
The one in Hertz is the XO. The "level" is the trim. This means you can lower or raise the setting manually. As already stated, you should leave it where it is. Your setup program tries to set this to a certain standard. If you have the gain too high on the sub itself when you run the set up, then this trim value will be lower than zero, to try and offset the gain setting on the sub. If you set the gain too low, then the trim will be higher to offset. This is why the gain should be set to about the 11 o'clock position during calibration set up. Make sense?
 
AVRat

AVRat

Audioholic Ninja
You're talking about the sub channel level, pg 42, the LFE level adjustment is a different setting, pg 45.
 
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