JBL ES250p Configuration - AVS Forum
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post #1 of 3 Old 08-13-2012, 05:25 AM - Thread Starter
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Hi Guys,

I need help in bass managment for JBL ES250p subwoofer. I have the following speakers connected to Onkyo 609 receiver.

Center Speaker - JBL ES 25C - Frequency Response: 80Hz – 40kHz (–6dB) and Crossover Frequencies 3000Hz – 24dB/octave; 12000Hz – 18dB/octave
Fronts JBL ES 20 - Frequency Response: 60Hz – 40kHz (-3dB) and Crossover Frequencies: 3300Hz – 24dB/octave; 12000Hz – 18dB/octave
SurroundS - JBL ES 10 - Frequency Response: 65Hz – 40kHz (-3dB) and Crossover Frequencies: 3000Hz – 24dB/octave;9000Hz – 18dB/octave

On running "Audyssey eq" on onkyo receiver, the Fronts are set to 50Hz, Center to 40Hz and Surrounds to 50Hz. LFE is set to 120Hz.

I have set subwoofer level nob to 10 'O' Clock position and Phase switch is turned to 0. CrossOver nob is set to Maximum on Subwoofer at 150Hz. Please refer the attached image.

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My room size is 20X10.

Is there any problem in my above configuration ? If not, What changes should I make in above configuration?

Thanks,
Sagar
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post #2 of 3 Old 08-13-2012, 08:13 PM
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Quote:
Originally Posted by sagarmc0040 View Post

Center Speaker - JBL ES 25C - Frequency Response: 80Hz – 40kHz (–6dB) this is actually -3dB
Fronts JBL ES 20 - Frequency Response: 60Hz – 40kHz (-3dB)
SurroundS - JBL ES 10 - Frequency Response: 65Hz – 40kHz (-3dB)

On running "Audyssey eq" on onkyo receiver, the Fronts are set to 50Hz, Center to 40Hz and Surrounds to 50Hz. LFE is set to 120Hz. I have set subwoofer level nob to 10 'O' Clock position and Phase switch is turned to 0. CrossOver nob is set to Maximum on Subwoofer at 150Hz.

My room size is 20X10. Is there any problem in my above configuration ? If not, What changes should I make in above configuration?

That's what Audyssey set everything for? Seems out of whack to me.

All of your speakers are set to crossover at a frequency lower than they're designed to handle. Along with that oddity, the subwoofer is crossed over higher then it need be. I'd try setting the speakers to crossover at 10Hz above their respective lower -3dB point, and then set the sub to 100Hz and see if that sounds better. Depending upon how much bass you like perhaps upping the subwoofers gain to the 12 o'clock position is worth considering as well.
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post #3 of 3 Old 08-13-2012, 10:43 PM - Thread Starter
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Thank you for the reply Jim. Yeah, this is what audyssey returned!! I will try your suggestions and check again.
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