Crossover setting on subwoofer

P

PENG

Audioholic Slumlord
If BOTH, is selected in the avr , whether the mains are selected large or small , The mains are full range. Otherwise The AVR could not send out LFE to the main channel.
As you suggested, I read the Yamaha FAQ. While it wasn't written exactly in English, I didn't think they were wrong because it makes sense that for the main to be full range it should be set large. However, as I said before, your findings (quoted in bold italic above) did contradict what is said (also quoted in bold italic, below). If you read the manual though, then there wasn't contradiction. It just wasn't clear because it didn't mention anything about whether the fronts (=mains) needed to be set to large or small.

From Yamaha FAQ:

"When setting the LFE/Bass Out to Both or Main, what is the effect ?
Last Update: 04/08/2011


When you are using a powered sub woofer and the LFE/Bass out is set to Both; frequencies from 90Hz ? 20Hz are sent to the sub woofer,
as well as the speakers who are set to Large. If you set the LFE/Bass Output to Main, then frequencies from 90Hz - 20Hz are sent only to the Main speakers, only if the Main speakers are set to large. If the Main speakers are set to Small, then only frequencies from 20Khz ? 90Hz are sent to the Main speakers. If all speakers are set to Large, then the LFE/Bass Output is mute."

So based on your own experiments, I would say the FAQ was either incorrect or it did not apply to the RX-Z9. The RX-Z9 manual was not wrong, but was not clear. Your last sentence in the quote "Otherwise The AVR could not send out LFE to the main channel" is also unclear. According to the manual, LFE should be directed to the main, i.e. front L,R channels if Bass Out is set to "Front". That setting is useful if you don't have a subwoofer.

I think we have covered everything, finally..
 
JOHN FICKEL

JOHN FICKEL

Senior Audioholic
Ok. So if mine are set SMALL, and bass out BOTH, according to that, my mains are sent only frequencies down to 90 HZ, So what happens to the 80hz crossover? The mains definitely got more much more bass. I wonder if it's because, it's doubling the information to the main channel now
 
JOHN FICKEL

JOHN FICKEL

Senior Audioholic
Ok. I have what I Believe is correct. When mains are set small and bass out set to both, mains now play the the frequencies under the chosen sub cutoff frequency. large or small, mains play frequencys under the sub crossover frequency regardless of large or small. According to a Yamaha tech, mains never see the LFE channel information at all. That would explain why listening to regular music I get a lot more BASS.
 
JOHN FICKEL

JOHN FICKEL

Senior Audioholic
According to Yamaha, Large does not have to be selected, for the bass out feature to work. ( Both ) automatically makes mains Full range. Meaning the main channels now will play and, Will always Output the low-frequency signals. Not LFE. As long as a sub is connected, LFE will never be directed to any channel, other than the sub. For LFE to be directed to the main channel, no subwoofer can be present. And bass out set to front.
 

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