Advice on crossover frequency on my pioneer speakers - AVS Forum
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post #1 of 15 Old 01-08-2012, 10:33 PM - Thread Starter
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Hello
I need help with what crossover frequency I should set my receiver on so my speakers and subwoofer blend in perfectly. I'm a beginner on audio speakers but from what I've read on reviews i decided to get the 2 sets (4 tower speakers in total) of Pioneer SP-FS51-LR , for my center channel speaker I use the Pioneer S-31C-K and my subwoofer is a BIC America F12 12-Inch. My receiver is a Pioneer VSX-1020-K. My set up is for a 5.1 home theater system. Since the frequency on the towers and the center speaker are 45 Hz on the lowest end i was thinking to setting the crossover frequency on 75 Hz or 80 Hz but as i said i don't know much about audio so i'll take what ever advice you say and use that X-over frequency. I know probably there are a bunch of speaker out there that are better than these ones, but i received one set of the tower speaker as a gift and i bought the other 2. So please can you help me on this.

Pioneer SP-FS51-LR
Enclosure : Bass-reflex Floorstanding Type
Configuration : 3-way
Frequency Range : 45 Hz - 20 kHz
Nominal Impedance : 6 Ohms
Sensitivity (2.83 V) : 87 dB
Maximum Input Power: 130 W
Crossover Frequency : 2.5 kHz
Dimensions (W x H x D) 7-7/8" x 31-1/2" x 8-11/16"
Weight (each) 22 lbs 4 oz
Woofer: Triple 5 1/4"
Tweeter: 1"

Pioneer S-31C-K

Technical Specifications

Center Channel Speaker
Woofer: 4" Glass Fiber x2
Tweeter: 1" Soft Dome
Enclosure: Rear Vented Bass-reflex Center Type
Impedance: 6 ohms
Frequency Range: 45Hz - 40 kHz
Sensitivity (2.83V): 84 dB
Maximum Power: 120W
Finish: Black
Dimensions (W x H x D): 14.3" x 5.7" x 6.9"
Weight: 7.9 lbs

BIC America F12 12-Inch

Design: Front-firing 12-inch, 475-watt peak powered subwoofer
Frequency Response: 25Hz - 200Hz
Sensitivity: 90dB
Drivers: 12-inch injection molded woofer with heavy duty surround
Magnetic Shielding: Yes
Gold-Plated Terminals:Yes
Recommended Power: Built-in Amplifier Power: 475 watts Dynamic Peak, 150 watts RMS continuous
Impedance: 8 ohms
Dimensions: 21 x 19 x 22 inches (HxWxD)
Weight: 42.70 pounds each
Warranty: 5 years parts and labor
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post #2 of 15 Old 01-09-2012, 06:24 AM
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^^^

cross them at 80...

- chris

 

my build thread - updated 8-20-12 - new seating installed and projector isolation solution

 

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post #3 of 15 Old 01-09-2012, 03:43 PM - Thread Starter
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Originally Posted by ccotenj View Post

^^^

cross them at 80...

Ok thanks I'll do that.thanks for taking your time in helping a beginner
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post #4 of 15 Old 01-09-2012, 04:05 PM
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Do you have a setting for crossover frequency on your subwoofer AND your receiver?

If you have both, the subwoofer should be set to its highest setting; 200 Hz or whatever so that its filter does not interact with the receiver filter rolloff setting; one or the other should be used; never both.

If the receiver does NOT have an adjustable subwoofer filter (rolloff) setting, then the subwoofer control can be set to between 60 and 80 hz. Adjust and see what sounds best.

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Ok thanks I'll do that.thanks for taking your time in helping a beginner

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post #5 of 15 Old 01-09-2012, 04:12 PM - Thread Starter
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Quote:
Originally Posted by commsysman View Post

Do you have a setting for crossover frequency on your subwoofer AND your receiver?

If you have both, the subwoofer should be set to its highest setting; 200 Hz or whatever so that its filter does not interact with the receiver's filter; one or the other should be used; never both.

If the receiver does not have a subwoofer filter (rolloff) setting, then the subwoofer control can be set to between 60 and 80 hz. Adjust and see what sounds best.

Ok I did read that yesterday, but thanks for the advice if you have more tips ill sure read then since I'm learning each day bit by bit.
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post #6 of 15 Old 01-10-2012, 01:15 AM - Thread Starter
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I posted the same question in another forum and someone told me "Why not use the S-C21 for the center? The center you are using is not from the same product line, and might not be timbre matched to your towers up front". Lucky I've bought the SP-C21 before the S-31C-K. Now my question is which center speaker should I use for (Timber match) best sound match and sound quality with the set up that I got?
PS: I live in the Dominican Republic so I can't return any of the speaker since it will cost me more to send then. So I'll just keep them and use it for a future set up or give it to someone else.

SP-C21 Specs

Enclosure
Bass-reflex Center Type
Configuration
2-way
Frequency Range
55 Hz - 20 kHz
Nominal Impedance
6 Ohms
Sensitivity (2.83 V)
87 dB
Maximum Input Power
130 W
Crossover Frequency
2.5 kHz
Dimensions (W x H x D)
19-7/8" x 7-7/8" x 8-11/16"
Weight
16 lbs 3 oz
Woofer
Dual 5 1/4"
Tweeter
1"

SP-31C-K
Center Channel Speaker
Woofer: 4" Glass Fiber x2
Tweeter: 1" Soft Dome
Enclosure: Rear Vented Bass-reflex Center Type
Impedance: 6 ohms
Frequency Range: 45Hz - 40 kHz
Sensitivity (2.83V): 84 dB
Maximum Power: 120W
Finish: Black
Dimensions (W x H x D): 14.3" x 5.7" x 6.9"
Weight: 7.9 lbs
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post #7 of 15 Old 01-10-2012, 04:28 AM
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Has anyone given you the most obvious advice of running the receiver's built-in auto setup (MCACC)? That will set ALL of your crossovers EXCEPT on the subwoofer itself (Set that to the highest setting before running MCACC).

Bill C
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post #8 of 15 Old 01-10-2012, 05:07 AM
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^^^

problem is, mcacc is almost certain to set them to large (unless he has some type of huge suckout in his room in the 40-80hz octave)....

but yes, he should be doing that first....

- chris

 

my build thread - updated 8-20-12 - new seating installed and projector isolation solution

 

http://www.avsforum.com/t/1332917/ccotenj-finally-gets-a-projector

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post #9 of 15 Old 01-10-2012, 05:08 AM - Thread Starter
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Ok thanks ,I'm in the USA right now and I send my speakers to my country so haven't got the chance to run it yet. But I was asking first so when I get there at list I would have some clue on what to do. Thanks for the advice though.
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post #10 of 15 Old 01-10-2012, 07:36 AM
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Quote:
Originally Posted by elvinps2626 View Post

Ok thanks ,I'm in the USA right now and I send my speakers to my country so haven't got the chance to run it yet. But I was asking first so when I get there at list I would have some clue on what to do. Thanks for the advice though.

Use the 21 center. It's got bigger drivers
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post #11 of 15 Old 01-10-2012, 07:55 AM
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Quote:
Originally Posted by elvinps2626 View Post

Lucky I've bought the SP-C21 before the S-31C-K. Now my question is which center speaker should I use for (Timber match) best sound match and sound quality with the set up that I got?

The S-31C was voiced for a different Pioneer series. The SP-C21 will
timbre match your tower speakers. Crossover 80 hz

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Speakers > MB Quart VS05, Boston VS260, Snell K7
Subwoofer > Mordaunt Short Aviano 7
Receiver > Tascam PA-R200, Pioneer VSX-30
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post #12 of 15 Old 01-11-2012, 12:11 AM - Thread Starter
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Quote:
Originally Posted by zieglj01 View Post


The S-31C was voiced for a different Pioneer series. The SP-C21 will
timbre match your tower speakers. Crossover 80 hz

Ok ill use the SP-C21 thanks
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post #13 of 15 Old 01-12-2012, 02:17 PM
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I feel I have to put in my 2 cents worth. Almost everywhere (including owner's manuals for receiver, etc.) you will read: Set all speakers to small and crossover to 80 Hz.

So I did........

I was listening to about 50/50 music/movies. Then my sub blew up. So I reconfigured everything so that all freqs went to my speakers. I was really happy with the sound. (I'm not the kind who really enjoys thunderous bass shaking the walls during movies, and I don't think its EVER necessary when listening to music).

Anyway, long story short. I fixed the sub and set up as before (Small and 80 Hz). I found that I was disappointed with the blending of the mains with the subs. (And surprisingly, my mains are Yamaha and they have a reputation for lacking a bit in the bass department - according to specs they are 45 Hz - 50 kHz).

I did the setup again, this time with L + R set to large, and crossover at 50 Hz and I liked it much better. The sub blended in seamlessly with the towers. I dunno, I probably have an acoustcally weird room, but it really made a big difference for me.

I guess my point is: Try various settings until you find the one you like the best (even if it goes against usual guidelines). It only takes a few minutes and you're not going to damage your equipment.
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post #14 of 15 Old 01-12-2012, 06:46 PM - Thread Starter
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Quote:
Originally Posted by bbrio View Post

I feel I have to put in my 2 cents worth. Almost everywhere (including owner's manuals for receiver, etc.) you will read: Set all speakers to small and crossover to 80 Hz.

So I did........

I was listening to about 50/50 music/movies. Then my sub blew up. So I reconfigured everything so that all freqs went to my speakers. I was really happy with the sound. (I'm not the kind who really enjoys thunderous bass shaking the walls during movies, and I don't think its EVER necessary when listening to music).

Anyway, long story short. I fixed the sub and set up as before (Small and 80 Hz). I found that I was disappointed with the blending of the mains with the subs. (And surprisingly, my mains are Yamaha and they have a reputation for lacking a bit in the bass department - according to specs they are 45 Hz - 50 kHz).

I did the setup again, this time with L + R set to large, and crossover at 50 Hz and I liked it much better. The sub blended in seamlessly with the towers. I dunno, I probably have an acoustcally weird room, but it really made a big difference for me.

I guess my point is: Try various settings until you find the one you like the best (even if it goes against usual guidelines). It only takes a few minutes and you're not going to damage your equipment.

Ok I'll try different X-over to see what I like better
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post #15 of 15 Old 01-13-2012, 04:23 AM
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Yep, definitely worth a try. In my case it was an obvious choice. With mains set to small and crossover set at 80 Hz, I could definitely hear the sub thumping away in the corner. At "Large - 50 Hz" the deep sub frequencies appeared to be coming from the mains, you couldn't even tell the sub was there. I think that's what we're striving for.
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