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The sub volume and crossover knobs are at max. The Only EQ options this receiver has are for one speaker at a time (and not the sub). So it doesn’t really help boost the sub what-so-ever. I don’t think it has any room correction feature either. It does have a menu where you I put the distance from each speaker, which I have done. The is a “extra bass” option, but that doesn’t fix everything. We still don’t seem to have bass in a lot of places we’d like to hear it. Then it seems kind of one note. Like I’m Always getting a hum when I need a boom or a rumble. Rock music sounds like you’re watching MTV on standard TV speakers.
sometimes it sounds better to turn the sub off, and let my Klipsch floorstanders do all the bass, but even that, not nearly as good as it should.
Ps by EQ options I assume you mean the sliders for various frequency ranges. I do have things like “DTS: Music” but I usually keep it on “STRAIGHT”
At the subwoofer, turn your subwoofer volume to zero. Set the crossover at 80hz. Make sure your phase is at 0 degrees. Same at the Yamaha setup which you should see in the setup/speakers section. Make sure you have the speaker 'ohm set correctly.
Start some music or something you are familiar with and gradually increase the subwoofer volume at the subwoofer until you like it. If it sounds "not in accord with the speakers", turn the phase on the subwoofer to 180 degrees. Repeat the listening exercise.
Sorry I haven’t replied in a few days. I’ve been trying hat process periodically for a couple years. I don’t see any option to adjust ohms in the setup. How do I ultimately rule out this being a poor receiver? It seems improbable that it would take this much tinkering to make this >$2000 set of speakers sound better than my $50 headphones, or the stock speakers in my car.
but on the other hand, I’d hate to waste money on a new receiver and still have lack-luster results.
Yamaha receivers can usually be configured for 8 ohm or 6 ohm speakers (6 ohm setting usually works for 4 ohm speakers as well). The Klipsch are spec as 8 ohm, but you never know how low the impedance can drop.
I would suggest downloading and reading the manual for your receiver.
The speaker impedance can be changed using the Advanced Setup menu. Read page 64 on the manual. There is a special way to access the Advanced Setup menu.