IS THERE A DEFINATIVE ANSWER OUT THERE?!?

[admin_exported]

I'll start off by saying exactly what all FNG's say- "Hi- I new to this so bear with me!!"

My system consists of the following: Denon 1909 a/v receiver, Kef 2005.3 speakers and sony kdl 40w4500 in medium sized room. I sit square on to the tv and the speakers are placed as per square room type guidelines. My question is this, Is there a definative answer to what I should set the crossover frequency at on the receiver or is it a 'how longs a peice of string' type question? Im getting really frustrated as I cant seem to get it right /find the right answers on any A/V forums!! ARGGHHH. The receiver is able to set the levels but then on the rear of the sub it has its own dials, knobs and switches for other things as well as its own cross over frequencies will this then over ride what I have set on the reciever?!!

All I want is for someone to tell me what I should set the levels at!! Is there anybody out there that can please help me.....??!!

 

[kjelly]

Hi ...

Yes, you set the sub crossover frequency to handover just before the front speakers own capabilities drop-off.

Kev

 

[Anonymous]

cheers mate, what does that mean in lay mans terms?

sorry for my ignorance!

 

[kjelly]

Hi ...

Your two main front speakers shoudl have a table on their back, or in the manual, which says what their overal frequency range is: i.e from their highest treble to their lowest bass output. You shoudl set the sub to take-over at the low frequency point where the two font speakers cant go anymore. But, leave a little overlap so you dont end up with a hole in the sound-field.

The AV reciever should then pass those low end sounds to the sub, which will be able to do something with them.

I cant help you on the dials etc on your sub ... you should check out the manual

Make sense?

 

[Trefor Patten]

You mean definitive. crossover, piece, can't and receiver. Take more care and you might find things work better for you....

 

[Andrew Everard]

Steve,

Set the volume/gain control on the subwoofer to near its maximum setting.

Set the crossover control, marked in Hz, to its maximum setting. 140Hz, I think.

Set the phase switch to 0.

Run the automatic set-up on the receiver.

Job done.

 

[John Duncan]

Trefor Patten:You mean definitive. crossover, piece, can't and receiver. Take more care and you might find things work better for you....

Cheers for that Trevor.

 

[Andrew Everard]

And surely it's

?

 

[Big Aura]

JohnDuncan:Trefor Patten:You mean definitive. crossover, piece, can't and receiver. Take more care and you might find things work better for you.... Cheers for that Trevor. Grammar & syntax prudes make me [sic.]

 

[Andrew Everard]

Big Aura:Grammar & syntax prudes make me [sic.]

Thus you were made by grammar and syntax prudes?

 

[John Duncan]

Andrew Everard:
Big Aura:Grammar & syntax prudes make me [sic.]

Thus you were made by grammar and syntax prudes?

My grammar was a prude, certainly, but then she was from a different generation.....

 

[Big Aura]

Andrew Everard:Thus you were made by grammar and syntax prudes?

heh. You have no idea how close to the truth you are.

 

[Andrew Everard]

JohnDuncan:

My grammar was a prude, certainly, but then she was from a different generation.....

Ah yes, but in those days people couldn't afford to pay the syntax.

 

[kjelly]

True, sometimes my typing goes too quickly for accuracy.

But I prefer to have a brain that works faster than my fingers than vice-versa.
Point is...I was trying to help someone, and you were just wasting time.

 

[RodhasGibson]

What were the seven deadlies worth back then.

 

[LEET1973]

Hi

I've also got the Kef 2005.3 speakers but i've paired mine with the Onkyo 606.

They both utilise Audyssey auto-set up so what i've learnt over the last month will apply to you.

If you want to go down the auto-set up routine consider the following:

- Set the LFE crossover on the back of Kube subwoofer to the maximum (this will let the amp control the LFE crossover)

- Set the level control on the back of the Kube subwoofer to around 50%

- Set the cross-over for the LFE channel in the amp set-up to 120hz

- Run the Audyssey auto-set up routine with the microphone at ear height

- Check the trim levels for the sub-woofer reported by Audyssey. Make sure it is not towards the extreme ends of your amps range and ideally within plus or minus 3db. If you are toward either end of the range, adjust the level control on the back of your sub accordingly and repeat the auto calibration. This is worth doing, as if your amp is setting the trim level of your sub to one extreme, say -15db then it can go no further, so turn down the level on actual sub and repeat.

- Once the sub is sorted, check out the speaker distances reported by Audyssey. If they appear reasonable, i would expect the trim levels of your satelite speakers to also be OK. Be careful with the distance measurment of the sub, as Audyssey will counter any delays originating from any LPF by altering the subs distance.

- Next check the crossover frequencies reported by Audyssey for your satelites. My set-up put the front LCR speakers at 150hz and the rears at 80hz. The kefs are rated down to 80hz but i think the low value for my rear speakers is due to their corner wall mounted position, which will emphasize the low frequencies. General advice is that raising the crossover values is OK but lowering them is not.

Thats the long answer and it worked a treat for me.

Lee.

 

[Anonymous]

Cheers for the answers- you were all very helpful... well maybe not the guy who is very particulllar with his spelllling!! Blimey- my first ever post on here and Ive caused an argument already!!

Il give it a go tomorrow

Stevie

 

[Anonymous]

Oh, one last thing then I'll leave you all alone!! Re the crossover settings for the satellite speakers - My question is this, what should they be ideally set at? I know Lee has said 150 for the fronts (does that include the centre Lee?) and 80 for the rears. The receiver has the rears set to 200hz- is that ok or will it damage them? currently sit 3.6m from front and around 2m from rears if that makes any difference to the auto setup...

Stevie

 

[LEET1973]

Hi

Yeah!!! My auto set up put all the fronts (inc. centre) at 150hz and both rears at 80hz. Please bear in mind that my crossover values set by Audyssey will reflect the acoustics in my room.

200hz for your rear speakers seems a tad high - this could cause localisation of your bass.

Are your rears free standing by any chance and away from any walls?

When you did your auto set up, did you have the microphone at ear level?. Or do you have high back chairs that could possibly interferere with the sound path to the microphone - if so raise the height of the microphone slightly. Ideally the microphone should be on some sort of camera tripod, pointing toward the ceilling and at seated ear level (except if you have high backed chairs).

Dont worry about damaging your speakers, this high crossover value just means that more of the low frequency range is sent to the sub and not your rear speakers. As i said above, this could lead to some localisation of the bass but would in no way damage your speakers. Audyssey auto-setp is very much room dependant and if it sounds good with no localisation of bass, then stick with it.

Good Luck

Lee.

 

[Anonymous]

Cool! Thanks for the help and advice mate.

Stevie