I have a Yamaha ATS-1080 sound bar connected to my home-built subwoofer, and I am considering upgrading it. I already attempted doing so with a Denon C210 soundbar from Costco, and I was so discouraged that it scared me off of buying another without doing some research first; the subwoofer line out seems to block nearly all frequencies below 30hz... like, when I played a 16hz test tone, I heard little beyond high frequency distortion. Having said that, does anyone know of a sound bar, preferably under $300, with subwoofer line out that they can personally attest to passing infrasound through, unblocked??? ...as I did not go to great pains to design and build a subwoofer capable of infrasound just to have my sound bar filter all of those frequencies out!
Hi, the subwoofer line out that you refer to is a powered output and the HP used (embedded) for maximizing driver's efficiency in bass-reflex.
That's my guess
That's my guess
The idea that you are using a soundbar to listen to your TV and complain because it doesn't pass audio below 30Hz is very strange to me.
It's like putting ketchup on Caviar.
What source do you have that actually contains audio below 30Hz?
It's like putting ketchup on Caviar.
What source do you have that actually contains audio below 30Hz?
sigh Yes, I do realize that my situation isn't ideal, but it's what I have to work with at the moment. My sources are the HDMI eARC for movies and such (through which I do hear infrasound occasionally because the Yamaha does allow some to get through, albeit rolled off a bit...), music from my phone via Bluetooth (I listen to a lot of pipe organ music and classical, as well as some of the classic Telarc, Erich Kunzel stuff... before you ask, the organ pedals do come through from the Bluetooth audio), and a CD player connected to the toslink input. At some point, I hope to upgrade to an AV receiver which should thoroughly solve my problem, but now is not the time.
Thank you for at least attempting to help me instead of critiquing the question itself. I do, however suspect that you're mistaken regarding the output being powered, although it is simply labeled "Subwoofer Out" as opposed to "Subwoofer Pre Out" (though my Yamaha is labeled the same, and I know it to be a preamp output.) Nonetheless, you could still be right about the reason for the high-pass filter.
Thank you for at least attempting to help me instead of critiquing the question itself. I do, however suspect that you're mistaken regarding the output being powered, although it is simply labeled "Subwoofer Out" as opposed to "Subwoofer Pre Out" (though my Yamaha is labeled the same, and I know it to be a preamp output.) Nonetheless, you could still be right about the reason for the high-pass filter.
I am suprised if anything below 30hz is transmitted. I assumed (perhaps incorrectly) that the recording chains have a HP filter set at about that.
I also listen to much organ music - mostly professional Youtube videos which are the standard broadcast audio of 48K 24bit and I use a Dayton Audio DSP-LF and the iWoofer phone app to control it my subs.
I have been able to emulate the Linkwitz Transform compensation which overcomes (depending on driver excursion and power amp output) the roll off below resonance of my subs. (58Hz)
The results are impressive but the only subsonics I have encountered are turntable rumble.
Sorry I am still sceptical about your beliefs that your audio sources are transmitting anything below 30Hz so what you are hearing are subharmonics and beat frequencies (and these will be physical sensations since you cannot hear sounds below 20Hz)
I also listen to much organ music - mostly professional Youtube videos which are the standard broadcast audio of 48K 24bit and I use a Dayton Audio DSP-LF and the iWoofer phone app to control it my subs.
I have been able to emulate the Linkwitz Transform compensation which overcomes (depending on driver excursion and power amp output) the roll off below resonance of my subs. (58Hz)
The results are impressive but the only subsonics I have encountered are turntable rumble.
Sorry I am still sceptical about your beliefs that your audio sources are transmitting anything below 30Hz so what you are hearing are subharmonics and beat frequencies (and these will be physical sensations since you cannot hear sounds below 20Hz)
I have a YAS-107 which is the same thing and it has a LP filter on the sub pre out. I run it to a stereo amp to some other speakers when I need some additional bottom end for TV movies and seems to go low enough for that purpose. It may have a HP filter for the in built powered 3" woofers but the sub out comes from a different output from the DAC. I've attached a schematic of the sub pre amp for the YAS-107 which would be the same.
