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How big should center spkr be to set to "large"?

in the processor, that is?

My center speaker is pretty big as center speakers go, a Paradigm cc570. But it pales in LF response compared to my front L/R. Also, I am not currently using a sub.

I have tried it with the center set to small and large. When center is set to large, the movies seem to lose a lot of overall bass. I have plenty of amp power to the center, 200w.

I would like to set the center to large to get a bigger sound right there in the middle, but perhaps you have to have an even bigger center speaker. But that is going to get really expensive.
mtrot
chadnliz
3,736 posts
 
It is always best to set your speakers lower if they can handle it... 80hz was invented by Lucas films...they made the law but that doesnt mean you need to follow them.
cdwallace
216 posts
 
" It is always best to set your speakers lower if they can handle it..."

I agree...only if it integrates with the rest of the system for overall optimal performance.

"80hz was invented by Lucas films...they made the law but that doesn't mean you need to follow them."

Some people do have an issue with THX, Lucus and so on. But, you have to admit, like it or not 80hz is a good starting point. Agreed?
drcruz
29 posts
 
There's suppose to be a good reason for the 80Hz crossover point. I've heard the reason but have forgotten. CD, do you know the reason for the THX 80Hz crossover standard?

Is 80hz the point where sound is no longer omnidirectional?

I've have an older Pioneer VSX-711, unfortuneately it's lowest crossover point is 100Hz. I also have 6.5" woofer speakers w/ 1" tweeters (5 equal channels), and my system sounds its best set to LARGE. At 100Hz the sound was harsh/edgy and the bass was too boomy.
chadnliz
3,736 posts
 
Yes it is a good starting point but lets look at just why that is?
I feel it was simply for the benefit of speaker manufactures, can you imagine small speakers that had good WAF if Lucas choose 60hz, 50hz? It is simply my opinion but I think that on one hand it is good to have a standard but they should be honest and claim that those numbers are more geared to the minimum acceptable performance and if you have speakers that can handle more.....by all means take advantage of the better performance.
cdwallace
216 posts
 
"CD, do you know the reason for the THX 80Hz crossover standard?"

Drcruz - I've never considered why THX selected 80hz, seeing my system wasn't built around THX standards. I would suggest if its important, check out the website for THX or Tomlinson Holmans site to see if he explains his conclusion. IMO, considering I choose this as a STARTing point, vs. 250Hz or 45hz, it doesn't matter.

I'm glad to see the large setting works best for you system. Enjoy!
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