Ls50 / newmann 805 cut off / Roon eq / devialet 120

[meracus]

Hi guys
Questions for the techies out there
My devialet 120 allows for hpf and delay .
Devialet recommends 4th order ( available from the configurator )
I just picked up a nice s/h Neumann 805

Whats the correct way to integrate the combo ?
How can I extract maximum SPL from the ls50 and result in minimal distortion using the neumann for bass duties
Do I connect the left and right output from the devialet to the Neumann or use just one lfe input ?
Finally .. is there a general consensus on what parametric eq is needed on Roon to obtain the best possible results from the ls50
Thanks chaps

 

[Purité Audio]

LS50 measurements here,

KEF LS50 Bookshelf Speaker Review

This is a review and detailed measurements of the famous KEF LS50 speaker. It was kindly loaned to me by a local member. The LS50 costs US $1,500 but seems to be on sale for US $1,300 on Amazon and elsewhere. The LS50 nails the look of the speaker with the bright color and shape of the...

www.audiosciencereview.com

Ideally you should measure then in your own room, Roon can add both the high and low pass filters, if the sub is near the mains you won’t need to worry about delay, but that too is available in Roon once you enable ‘procedural’ Eq.
Best,
Keith

 

[meracus]

Remind me to put you on my will next time I see you …

 

[meracus]

LS50 measurements here,

KEF LS50 Bookshelf Speaker Review

This is a review and detailed measurements of the famous KEF LS50 speaker. It was kindly loaned to me by a local member. The LS50 costs US $1,500 but seems to be on sale for US $1,300 on Amazon and elsewhere. The LS50 nails the look of the speaker with the bright color and shape of the...

www.audiosciencereview.com

Ideally you should measure then in your own room, Roon can add both the high and low pass filters, if the sub is near the mains you won’t need to worry about delay, but that too is available in Roon once you enable ‘procedural’ Eq.
Best,
Keith

Also … how can Roon do that ? As in how can Roon split the signal to go to the mains / sub … not sure I understand

 

[Purité Audio]

Remind me to put you on my will next time I see you …

Please don’t leave me your Zu’s.
Keith

 

[meracus]

I have a mobility scooter if you want

 

[Purité Audio]

Also … how can Roon do that ? As in how can Roon split the signal to go to the mains / sub … not sure I understand

If you go into Roon bottom right there is a little graphic of the end point next to that a little loudspeaker click that, chose the wiggly symbol click that and you go to the ‘muse’ page which is Roon’s EQ.
On the left hand panel there is a whole ist of things Roon can do, if they aren’t displaying click the ‘add filter’ button.
Procedural eq is what you want, use that for the left channel ( there is a switch for left/right ) then add another procedural eq for the right channel.
Then just literally add filters low pass , frequency slope , high pass etc etc.
When I come around I will show you but it is straightforward you just have to proceed step by step, making sure you are adding the filter to the correct channel that it has been enabled, the parameters are correct etc.
Keith

 

[CapMan]

LS50 measurements here,

KEF LS50 Bookshelf Speaker Review

This is a review and detailed measurements of the famous KEF LS50 speaker. It was kindly loaned to me by a local member. The LS50 costs US $1,500 but seems to be on sale for US $1,300 on Amazon and elsewhere. The LS50 nails the look of the speaker with the bright color and shape of the...

www.audiosciencereview.com

Ideally you should measure then in your own room, Roon can add both the high and low pass filters, if the sub is near the mains you won’t need to worry about delay, but that too is available in Roon once you enable ‘procedural’ Eq.
Best,
Keith

Not sure you can achieve this with the OPs set up. The Devialet is the Roon endpoint (I had one) So the HP/LP need to be applied in the Devialet as Roon just sees one device to apply EQ to in 2 stereo channels . I assume the OP has configured one of the Devialet outputs as a sub channel .

To answer the question - you need a UMIK1 and REW

I measured with 80,90,100,110,120 hz XO for both mains L+R with HP(ok as only interested in bass) and sub with LP.

Use REW to see which sums to the best (flattest response) - use the time alignment function in REW to align sub and mains for flattest response . I would not assume that near placement means this is not necessary .

Note the Devialet HP and LP filters are not standard Linkwitz or Butterworth. The are a variant of Bessel .

PREOUT and SPEAKERS filters : type ? [solved: BESSEL filters]

Hi all, In the mid term, I plan to add 2 subwoofers to my setup, using the D200 PREOUTs. The subs will have their own amp and filtering, incl. Linkwitz transform and low pass at approx.100 Hz, so I wi

devialetchat.com

I spent a lot of time integrating subs and P3ESR with my 220 - if you need help feel free to PM

 

[CapMan]

Also … how can Roon do that ? As in how can Roon split the signal to go to the mains / sub … not sure I understand

It can’t

 

[Purité Audio]

I am not familiar with the Devialet but Roon most certainly can.
Keith

 

[CapMan]

I am not familiar with the Devialet but Roon most certainly can.
Keith

Roon applies its processing to the end point. The devialet is the end point.

The Devialet has its own DSP (Sharc chip) and it is possible to configure one output to be a sub and apply DSP to this - LP filters/full range.

It is also possible to apply HP and delays the mains .

Devialet made 9 bands of PEQ available but it is not possible to use this when HP/LP filtered are used in the Devialet.

 

[CapMan]

I describe my process here

Thread 'MSO parameters in SVS Sub DSP'
https://audiosciencereview.com/forum/index.php?threads/mso-parameters-in-svs-sub-dsp.46741/

 

[meracus]

I describe my process here

Thread 'MSO parameters in SVS Sub DSP'
https://audiosciencereview.com/forum/index.php?threads/mso-parameters-in-svs-sub-dsp.46741/

Thanks capman …
Yes it’s what I thought .. Roon send full signal to the devialet
It was a “ shallow “ enquiry .. getting the sub to work with the hpf
Thought I delve deeper in the festive season
Hence if I could faff around with generic right direction paramètre
I’m thinking 80 and up to mains 4th order
And do below to the 805
For the moment I’m applying a sam profile to the 50 , nice punchy bass at low volume ( I listen at low volume mainly late night )
And was thinking how can I get a quick good sound from this combo ( 50 / 805 ) reasoning behind is that the 50 not ideal in the bass ( the driver on Sam seem to be within a micron of his life )
As you know … changing the card process is a bit annoying cos can’t be done on the fly
Hence why I’m asking
Roon can fix a bit some anomalies so thought I get a few pointers
Is it worth leaving the Sam profile on so you think , I heard Sam works on bass mainly and since cutting the mains at 80-100 , wondering if not overdoing it or totally useless
I’m all for the science , but you know … without reading the manual

 

[CapMan]

Thanks capman …
Yes it’s what I thought .. Roon send full signal to the devialet
It was a “ shallow “ enquiry .. getting the sub to work with the hpf
Thought I delve deeper in the festive season
Hence if I could faff around with generic right direction paramètre
I’m thinking 80 and up to mains 4th order
And do below to the 805
For the moment I’m applying a sam profile to the 50 , nice punchy bass at low volume ( I listen at low volume mainly late night )
And was thinking how can I get a quick good sound from this combo ( 50 / 805 ) reasoning behind is that the 50 not ideal in the bass ( the driver on Sam seem to be within a micron of his life )
As you know … changing the card process is a bit annoying cos can’t be done on the fly
Hence why I’m asking
Roon can fix a bit some anomalies so thought I get a few pointers

Feel free to ask and I’d be happy to tell you what I learned . Main thing is to invest in a measurement mic and REW

 

[meracus]

Feel free to ask and I’d be happy to tell you what I learned . Main thing is to invest in a measurement mic and REW

Thanks .. I already have a umik1 … I encountered An issue with loading rew on my MacBook Pro would gladly pm you
You are a gentleman