What is "large" and "small" on an Onkyo receiver?

eyeguy

Sorry to sound ignorant. I got the new SurroundBar. My receiver is an Onkyo 805. The instructions with the Polk SB say to set the speaker channels to "large". I find no such setting on the Onkyo.
The system sounds fine, but maybe it could sound finer?
The only customizable receiver settings that I find are individual db levels, distances and crossover settings. These are set to 0db, 14feet and 120mhz respectively.
Thanks in advance for your help.

Refefer

"Large" and "Small" is basically a setting which tells your onkyo where to set the low pass filter for your speakers. The idea being is if you have smaller speakers, they won't be adequately able to reproduce lower bass sound, so the receiver cuts out the lower signals to those speakers. It should be accessible via the OSD.

margate21

on the onkyo there is full band or crossover settings.

Refefer

If that's the case, just run it without a crossover set.

kuntasensei

Normally, I'd say run Audyssey on the 805 and let it detect everything... but not sure how that would work with the SurroundBar.

millerman 3732

eyeguy wrote: »

Sorry to sound ignorant. I got the new SurroundBar. My receiver is an Onkyo 805. The instructions with the Polk SB say to set the speaker channels to "large". I find no such setting on the Onkyo.
The system sounds fine, but maybe it could sound finer?
The only customizable receiver settings that I find are individual db levels, distances and crossover settings. These are set to 0db, 14feet and 120mhz respectively.
Thanks in advance for your help.

You can change the crossover setting on your 805 by turning on the OSD, then go it to speaker setup, then in to speaker config. there you can set each speaker output to the X-over setting that you want.

rainman31

Full band is large

wizzy

I believe on an Onkyo it works like this:

Large sends all frequencies to fronts (or whatever you set to large) regardless of what frequencies you tell it to send to subwoofer, but still send subwoofer what you tell it to.

Small sends all frequencies above what you set subwoofer crossover to.

So, say your crossover is set to 80Hz.

Large Fronts: Fronts get 20-20Khz, Sub gets 20-80Hz
Small Fronts: Fronts get 80-20Khz, Sub gets 20-80Hz

kuntasensei

Nope, Wizzy. The new Onkyos have more than just LARGE and SMALL. They have FULL RANGE, then crossover points at 10Hz intervals from 40 to over 150Hz.

So if you set all channels to full range, you get each channel producing 20Hz-20kHz and subwoofer producing only the LFE channel (though how much of the LFE channel is limited by the LPF of LFE setting).

And each channel has its own independant crossover. So lets take my system for example: My RTi70s are crossed at 60Hz, my CSi40 at 70Hz and my RTi28s at 80Hz. LPF of LFE set to 120Hz so it reproduces the full bandwidth of the LFE channel. Therefore, the subwoofer receives the LFE channel, plus 60Hz and down from the mains, plus 70Hz and down from the center, plus 80Hz and down from the surrounds.

Of course, I'm simplifying here. A crossover isn't a hard point; it's a transition. The crossover point is essentially the point where the speaker and subwoofer are reproducing that frequency in equal amounts... which is why it is good to set crossovers about 10-20Hz higher than the speaker's lowest spec'd frequency - to give enough room for a transition to the subwoofer.

Of course, the SurroundBar is an all-in-one type deal... so that complicates things.