Speaker setup & crossover issues on marantz sr5300

[rimpocino]

Hi all! I have a marantz sr5300 ampli with 2 b&w dm602 front speakers, 1 central mosscade 517, a jbl sub 175 subwoofer (crossover frequency 40-130), an infinity central rear + 2 jbl lateral rear speakers (decent ones, but 6 ohm imp.)

I was not satisfied, particularly because in some settings (example DTS) the subwoofer did not play at all, in others (stereo with the cd player onkyo dx7333) too much! After reading here the guide 'Bass Management Basics – Settings Made Simple' I changed the settings:

before all speakers were set to 'Large', (there's no crossover setting in sr5300, is fixed at 100), subwoofer volume was middle way and subwoofer crossover was set to 110

now all speakers are set to 'small', subwoofer volume always middle way, and crossover is about 75-80.

Sound is better, and subwoofer is playing even in DTS mode, and all modes seems more 'balanced', without the dramatic (and sometimes bad) changes between one and the other.

Im satisfied about the sound I got, still Im asking what happens if the ampli crossover is fixed to 100 and setting my speakers 'small' I put subwoofer crossover at 75-80 (higher is too much: bumps and detectable). Where does the missing 20 go? Lost? Any advice?

 

[rimpocino]

B& W

Just found on the net that my B&W have a Frequency Response: 52Hz - 20kHz ± 3dB on reference axis, this should mean all below 52 hz goes lost...

 

[bandphan]

Just found on the net that my B&W have a Frequency Response: 52Hz - 20kHz ± 3dB on reference axis, this should mean all below 52 hz goes lost...

the speakers will play below 52hz, but the problem is the sub. A new one with extension into 20-25hz range is what you need. Your sub extends just below your mains, so not much benifit there.

 

[rimpocino]

thanks...

thanks a lot... well, my budget is too limited now, for the momenti being Id try to use what I have. I kept the speakers settings on 'small' (all of them) and tried some changing on the subwoofer: setting it with lower volume and crossoverr at about 100 made it too much 'visible' in the room. At about 85 it melts well enough with the other speakers. Its anyway better than having the speakers set on 'large' and a 'melted' sound not nice at all. Ill check the sub prices anyway... Txs !