Subwoofer setup help - Blu-ray Forum

CrazyEightyNine · 11-23-2023, 06:08 AM

I just purchased the Klipsch SPL-120 subwoofer (24-125 Hz) and I can't figure out what to set the lowpass to. My tower speakers are Klipsch R-820F (35Hz-21kHz). My receiver is a Yamaha RX-A1070. Any help? Thanks!

mywxrld · 11-26-2023, 06:30 PM

This is copied from the Sticky "A Guide To Bass Management" above

"Avoid an Audio Hole
A low-pass crossover frequency will block high frequency sound above the cutoff level. A high-pass crossover frequency will block frequencies below the cutoff level.

Typically, on many new receivers, the LPF ONLY affects the LFE channel (the ".1" channel), not the bass redirected from the other 5 or 7 channels. That is why you normally set it to 120Hz to make sure you receive all the information that the producers intended to put in the LFE channel. However, if the implemented LPF in the receiver affects the redirected bass from the other SMALL speakers, do not adjust the low-pass frequency too far below the high-pass frequency. The previous statement also applies to adjusting the crossover dial on the back of the subwoofer. You could end up with an audio hole in between the low-pass and high-pass frequencies.

However, remember that crossover networks cut frequencies progressively. As a result, if, for example, the high-pass frequency for the small speakers is set at 100Hz, and you set the low pass frequency around 80Hz or 90Hz, you will most likely be ok. If, however, you set the low-pass frequency around 60Hz to 70Hz, then you would most likely end up with an audio hole. Can you really hear the difference? I will leave the decision up to you."

I hope this helps.

MD-Blu · 07-17-2024, 04:07 PM

I have a Sony soundbar with a subwoofer, I’ve got sound coming out of the soundbar but not the subwoofer. The light is green, but I put my ear near the subwoofer, but no sound. Can anyone help me out getting sound from the subwoofer, I appreciate it in advance.

Fors* · 07-17-2024, 04:20 PM

Quote:

Originally Posted by MD-Blu

I have a Sony soundbar with a subwoofer, I’ve got sound coming out of the soundbar but not the subwoofer. The light is green, but I put my ear near the subwoofer, but no sound. Can anyone help me out getting sound from the subwoofer, I appreciate it in advance.

I don't have a soundbar, but I will be happy to try and help. What model of soundbar and subwoofer do you have?

11-23-2023, 06:08 AM	#1
CrazyEightyNine Active Member Member since:May 2008 Location:Mesa, AZ 4K collection:650 Blu-ray collection:986	Subwoofer setup help I just purchased the Klipsch SPL-120 subwoofer (24-125 Hz) and I can't figure out what to set the lowpass to. My tower speakers are Klipsch R-820F (35Hz-21kHz). My receiver is a Yamaha RX-A1070. Any help? Thanks!

11-26-2023, 06:30 PM	#2
mywxrld Active Member Member since:Aug 2008 Location:Just North Of Denver Colorado 4K collection:312 Blu-ray collection:1374	This is copied from the Sticky "A Guide To Bass Management" above "Avoid an Audio Hole A low-pass crossover frequency will block high frequency sound above the cutoff level. A high-pass crossover frequency will block frequencies below the cutoff level. Typically, on many new receivers, the LPF ONLY affects the LFE channel (the ".1" channel), not the bass redirected from the other 5 or 7 channels. That is why you normally set it to 120Hz to make sure you receive all the information that the producers intended to put in the LFE channel. However, if the implemented LPF in the receiver affects the redirected bass from the other SMALL speakers, do not adjust the low-pass frequency too far below the high-pass frequency. The previous statement also applies to adjusting the crossover dial on the back of the subwoofer. You could end up with an audio hole in between the low-pass and high-pass frequencies. However, remember that crossover networks cut frequencies progressively. As a result, if, for example, the high-pass frequency for the small speakers is set at 100Hz, and you set the low pass frequency around 80Hz or 90Hz, you will most likely be ok. If, however, you set the low-pass frequency around 60Hz to 70Hz, then you would most likely end up with an audio hole. Can you really hear the difference? I will leave the decision up to you." I hope this helps.

07-17-2024, 04:07 PM	#3
MD-Blu Blu-ray Ninja Member since:Oct 2008 Location:KY 4K collection:138 Blu-ray collection:194 DVD collection:15 Trading Score:57	I have a Sony soundbar with a subwoofer, I’ve got sound coming out of the soundbar but not the subwoofer. The light is green, but I put my ear near the subwoofer, but no sound. Can anyone help me out getting sound from the subwoofer, I appreciate it in advance.

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