Question Wharfedale DX-2 - what crossover frequency works best?

DeadEarsMate

Novice Member
Hi,

First post here, looking to hear from other DX-2 users on selecting best crossover frequency, mainly for movies, but music too.

I just bought and installed the speakers with a Sony STR-DN1080, very pleased with the initial results, now looking to fine-tune it a bit. I read some reviews that suggested to use a 100Hz crossover instead of the default 120Hz and I tried both but although I noticed a difference, couldn't say one was preferable to the other. But I also note that the centre speaker has a lower extension than the satellites (80 instead of 120 IIRC).

On the Sony I can set separate crossovers for front, centre and surround, so I am thinking of 110 on front and surround and 80 on the centre. Any thoughts from those who have experience with this speaker package?

The room is about 3.3m x 5.4m, with the TV on one of the longer walls, but offset due to a doorway. The surrounds are in the corners and pretty much in line with the back of the sofa at the main listening position, and one of them is further away than the other due to the offset TV. But, the Sony DCAC seems to have coped very well with this less-than-ideal speaker positioning. My sub is directly below one of the front speakers so no apparent problem with directionality of higher bass frequencies.

I realise these speakers in my room might seem a bit under-powered, but we don't listen at very high volumes and it goes more than loud enough for our purposes. Also, bearing in mind my last proper surround sound system was 10+ years ago with an old (but good) Yamaha amp and a random selection of speakers, this new system seems pretty good to me, especially coming from a Yamaha soundbar that we were using in the intermediate years.

NB I am aware that the nominal 4 ohm speaker impedance might cause an issue with the Sony, so as I am the cautious type, the Sony has 2 AC Infinity fans sitting on top sucking cool air up through vents in the bottom of the cabinet and exhausting warm air out the back. It runs pretty cool like this at the volumes we listen at.

Thanks!
 
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b1g1an

Well-known Member
As a rule, you want to be looking at 10-20 Hz above the quoted bottom end for the speaker so for what you have that'd be 130 for the satellites and 90 for the centre.

If you set the satellites to 110 you'd be missing a lump of sound.
 

DeadEarsMate

Novice Member
Thanks, what foxes me is the Sony consistently decides the DX-2's are 'Large' speakers after running DCAC, and after each calibration I manually set them to Small and that defaults the crossovers to 120Hz.

Anyway, another member PM'd me and suggested moving the sub into the corner, which I did and the results are much better after calibration and with the crossovers all at 120 it sounds well integrated with no obvious dips or booming. After watching Dunkirk I am very satisfied with the results!

With the sub in the corner, the amp dropped the sub channel back about 4dB, I guess as a result of the increased boundary effect, even though I also took the opportunity before calibrating to wind the sub volume knob back to about 10 o'clock. This was because the auto sensing was a bit unreliable with it set at 12 o'clock, so I hoped drawing more signal out of the amp would make it more reliable, which it has.
 

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