Axiom Home Page Forums General Discussion Advice from Axiom Owners Epic 80 500 with Denon 3808 bass issue(lack of)

Hello sailnunavut and welcome. It's not often that I see someone on the forums that has colder winters than Winnipeg. Now that mountain bike season is coming to a close and I'm prepping for winter, I'm back on the forum and spending more time indoors (by the way is there a mountain bike forum on these boards? ).

I have the same system that you now have. I also felt as you did for quite some time regarding bass before finding what I now consider my optimal settings (at least for the time being) so I thought I'd share my settings as well as as an observation.

First my settings:

M80s as large with crossover at 80Hz
VP150 as small with crossover at 90Hz
QS8s as small with crossover at 100Hz
LFE is at 100Hz
Subwoofer is set to LFE

I manually set all distances to the actual distance that I measured, I set all channels with an SPL meter and I have Audyssey turned off because I didn't like the sound with it turned on (although I haven't downloaded the new feature set yet).

Now for the observation...If you have your original settings for fronts set to small and sub at LFE or fronts set to large with sub set to LFE + mains and you set your fronts to large, it disables the front crossover while maintaining the existing crossover setting at the time you changed the original setting. Boy does that sound confusing. Let me try to explain.

For example, if the front crossover is set to 40Hz and you set the fronts to large then the 3808 maintains a 40Hz crossover even though it appears disabled. Previously I thought that if the front crossover was disabled in the GUI that the fronts were running full range but I don't think that is the case.

I prefer my fronts set to large and once I realized my observation about the front crossover, I had better luck adjusting my system to my liking.

I hope my 2 cents helps. If I'm wrong then I hope someone corrects me, or at the very least, makes fun of me.

There was a thread in the water cooler awhile ago.

Mountain? bike, shouldn't that be hill bike season out in Winnipeg? but I am not one to talk, it has been a few years since I have done any serious mountain bike riding in the Rockies. My neighbor did the Trans Rockies race this summer, now that is mountain bike riding.



The fronts are full range when set to large, the crossover is never off, the sounds below the crossover point are then sent to the sub as well as the mains.

hmmmm.. you mean the frequencies below your surround and center speakers crossover are sent to the mains AND the sub if your mains are set to large?

David, yes. That's why that arrangement is sometimes referred to as "double bass."

Regards,

For some reason I always thought the only bass that was getting doubled was the bass that was sent to the main channels to begin with.

Nice to know that the frequencies that get doubled are the frequencies that are sent to all channels (if below the crossover point of course).

I learn something new every day around here! Thanks for the info Alan.

I am not so sure if the surrounds and center would be directed to the mains, the sub for sure, as any speakers set to small have anything below the XO sent to the sub, as we all know, whether or not the surrounds and center are mixed into the mains channel as well......must experiment.

Yeah... I didn't think that was the case, but then again I never really thought about it.

Neither have I!

This bass management thing seems to have gotten a bit tangled-up, maybe over terminology. If the mains are set large they play full-range(no crossover frequency applies directly to them)and none of their bass goes to the sub unless a bass setting termed variously "LFE+ Mains", "Double Bass", etc. is selected. When that's done the low bass for the mains channel is sent to the sub as well as the mains. Redirected low bass from the center and surround channels below the crossover frequency or frequencies isn't affected by the "+" or "Double" setting and so is played by the sub alone and isn't doubled into the mains. The mains would be responsible for the low bass from center and surrounds only in the absence of the sub(and of course are automatically "Large" when no sub is set).

Thanks for clearing that up.