Official Power Sound Audio Thread.

[Magicmonger]

Originally Posted by tom v.

yup, i'm not even sure what they are referring to here..."hum"? When is there going to be "hum" specific to the lfe channel and only in the 80-120hz range? Honestly, this sounds like someone looking at this feature (being able to apply a lfe channel specific filter)....and thinking...."what the heck would anyone want this for......well, i better make something up for the manual..."

tom v.
Power sound audio

haha!

[Goat1]

Originally Posted by mreilly611

You push audyssey about how great it is. Then you change speakers to 80hz. So any speaker set above 80hz by audyssey and by you coming down to 80hz you are turning off room correction for that speaker. So you are not using room correction on those speakers. So how is Audyssey so great again?

WHAT YOU SHOULD DO AND WHAT YOU SHOULD NOT DO

1. It is ok to increase the crossover frequencies of the speakers as set by Audyssey. It is generally not recommended to lower the crossover frequencies below the numbers set by Audyssey. If you do that, Audyssey will not apply correction filters to the frequencies below the numbers that are set by the auto calibration program.

Many people are hung up on the 80Hz crossover frequency that is suggested by most experts. Although 80Hz crossover frequency works for many speakers, it is not a number that is etched in stone. That number was originally recommended by THX and applies to THX certified speakers that have certain frequency characteristics.

Audyssey does not measure the frequency response of a speaker as it was reported by the manufacturer and supposedly measured in an anechoic chamber. Audyssey measures the performance of the speakers in the room and based on that, it recommends some crossover numbers. Depending on their location, proximity to room boundaries, furniture, wall coverings, position of the microphone, etc., even identical speakers may have different performances in the room.

My fronts were set at full band
center 70
sides 70
rears 120
sub 100

I thought the sub at 100 was odd. I don't think the rears need to be at 120 either.

[mreilly611]

Originally Posted by Goat1

My fronts were set at full band
center 70
sides 70
rears 120
sub 100

I thought the sub at 100 was odd. I don't think the rears need to be at 120 either.

It just goes to show how rooms are different. My same sides Omdr's as your Mirage OMDR's get set at 90hz by Audyssey Xt and Audyssey XT 32. Yours at 70hz.

Your rears dont have good bass response and are rated at 100 hz so Audyssey set at a proper 120hz why would you want to force 80hz on them when they dont go that low. Its like trying to put 10 pounds of crap in a 5 pound bucket.

[Goat1]

The def tech 8040's don't do 80hz? So why was my sub set at 100?

[mreilly611]

Originally Posted by Goat1

The def tech 8040's don't do 80hz? So why was my sub set at 100?

Because 100hz or a 120hz is what it should be. Why doesn't audyssey set sub to 80hz. I have been using Audyssey for 7 years and not once has it set sub to 80hz or lower.

[Goat1]

Your missing the point. Why would it set my rears at 120 and the sub at 100. Isn't the sub supposed to match the rears?

[mreilly611]

Originally Posted by Goat1

Your missing the point. Why would it set my rears at 120 and the sub at 100. Isn't the sub supposed to match the rears?

Where did yo get that from. The rears and the sub are 2 completely different speakers with completely different characteristics.

[Bluvette]

Originally Posted by mreilly611

Where did yo get that from. The rears and the sub are 2 completely different speakers with completely different characteristics.

Not from knowledge or listening to anyone. I think it is those genius voices in his head. Goat you ask a question then when people try to help you give them a hard time. I have grown to except your ignorance, but man why don't you listen. You have a hard F@&*ing head. Chill and listen if you do not like the results go back to where you had it. Rome was not built in a day, it will all come together.

[Goat1]

WTF are you talking about? I didn't give anyone a hard time,I was being serious.. The question still hasn't been answered.. How can the rears be set at 120 and the sub at 100. Shouldn't the sub be at 120 also?

[rpneuss]

Originally Posted by Goat1

WTF are you talking about? I didn't give anyone a hard time,I was being serious.. The question still hasn't been answered.. How can the rears be set at 120 and the sub at 100. Shouldn't the sub be at 120 also?

Goat my rears are set at 100, center 120, and fronts 80. My sub is set to 80. For my room and my taste it sounds great! Now all the frequencies below 80 are sent to the subs.

*edit I just checked and my rears are set to 80 hz and center is 110. Of course my rears have 8" woofers so they handle it easily.

[mreilly611]

Originally Posted by Goat1

WTF are you talking about? I didn't give anyone a hard time,I was being serious.. The question still hasn't been answered.. How can the rears be set at 120 and the sub at 100. Shouldn't the sub be at 120 also?

Goat the question has been answered in my post #187

[Bluvette]

Originally Posted by mreilly611

Goat the question has been answered in my post #187

Dat's what I am talking about, it is all about reading comprehension. OMG

[Goat1]

I know but if the rears and sides are say,80 shouldn't your sub be 80 or higher..100,120?

[rpneuss]

Originally Posted by Goat1

I know but if the rears and sides are say,80 shouldn't your sub be 80 or higher..100,120?

Most people go off of their fronts capability. You are correct if the fronts are crossed over at 80 then most people would put their subs at 80 or higher. Mine are at 80 so all frequencies are covered in the lower spectrum.

[Goat1]

That's what I was trying to understand,what happens when your your fronts are at 80 the rears are at 120.. Is it still ok to have your sub at 80?

[rpneuss]

Originally Posted by Goat1

That's what I was trying to understand,what happens when your your fronts are at 80 the rears are at 120.. Is it still ok to have your sub at 80?

Absolutely! No problems there at all.

[mreilly611]

Originally Posted by rpneuss

Most people go off of their fronts capability. You are correct if the fronts are crossed over at 80 then most people would put their subs at 80 or higher. Mine are at 80 so all frequencies are covered in the lower spectrum.

That works perfect for music because it is recorded in 2.0 it has no LFE track. But for movies it is suspect. You have a LFE discrete channel called your .1 in your 5.1, 7.1or 9.1 system. This LFE is recorded at 3 Hz to 120Hz in movies. Now you told your sub to play up to 80hz. Where does the rest of the LFE signal go? The 80hz to 120hz?

[Goat1]

What if its at 120 and you can localize it?

[rpneuss]

Originally Posted by mreilly611

That works perfect for music because it is recorded in 2.0 it has no LFE track. But for movies it is suspect. You have a LFE discrete channel called your .1 in your 5.1, 7.1or 9.1 system. This LFE is recorded at 3 Hz to 120Hz in movies. Now you told your sub to play up to 80hz. Where does the rest of the LFE signal go? The 80hz to 120hz?

Sorry man most audiophiles I've talked to set it up pretty close to how I've set it up. I have two monitors as my fronts that are perfectly capable of handling 80 hz and up. Movies sound pretty damn good in my setup and I've tinkered with it for quite some time.

[rpneuss]

Originally Posted by Goat1

What if its at 120 and you can localize it?

Didn't Tom v who is very knowledgeable recommend 80 as a starting point? I would listen to him. Tinker with it until it sounds the best to you.