Well - 300dB/Octave is just silly.
The two driver units would most likely have very different dispersion patterns at the XO frequency - and that steep XO will create a huge step in the energy respons of the speaker - and the "in-room respons". However - I am quite certain it will sound better than a equally steep passive filter...

As for eveything else - you have to "work with" the technology - not against it.
This is not my area of expertice - but steep filters creates ringing as far as I can tell....surely for 300dB/Oct. So - I will not set up my system with anything close to those values - maximum 60db/Octave....for the bass - certainly less.

I have deliverately built my system to "work with" the technology - and if this ongoing upgrade - from Cd drive/DEQX to PC/Audiolense/DAD does what it should do on the paper - I can certainly say I would never look back. And even though I have heard quite a few systems - none of them are even close to the perceived SQ in my system in current state!  (with my preferences that is...)

BR
OMF

Well - I can do it in the player (XXHE), but I would propably try to keep the S/N as high as possible when doing the correction filter - so I would use the Lynx Mixer (SW) and adjust volume on the output (Digitally of course - 24 bit)....In that way the volume control will be the final element before the digital stream heads out to the DAC. I also have the option to adjust gain - both on my power amps (3 steps) and the DAC output - so that I can make sure that 0dB output from equals my maximum wanted SPL - making the digital attunuation as small as possible.


BR
OMF

Hi again!

The XVR1 shure look like a fantastic product to start experimenting with active XO. However - from a teoretical point of view (which for me is the most important) I see no advantage!

I had some help from the developer of Audiolense yesterday - and we installed Console. And I am pretty shure that my "new" system will be up an running this weekend.

I must say (this will probably cause a riot in here... ) that in my opinion the advantages of doing EQ, XO and group delay correction lossless and very accurate in the digital domain - is far far more important than any extra strain put on the computer. And with the output from the Lynx AES  16e SRC synced with the Masterclock in the DAD (less than 10ppm jitter) - I am shure I will be fine!

(A short questions here.....How is the connection between XXHE and my Lynx card working....where can i set the buffer size...?)

Best regards
OMF

Hello all!

Thanks for your feedback!

Mani – Well the financial meltdown was though on Derek – so Overkill is put on ice. I do however see that he is very active on some DIY webpages – and we do speak regularly on matters of hifi and enviroment! I hope he will be able to get back into hifi – he brought a loot of good ideas to the table!

I have been using digital filters for some while (DEQX) and would not consider going back to analog. I am confident that this new PC set up with Audiolense will bring things one big step further……

I see you have quite a few discussions regarding DA converters….

This is my choice:
 http://www.digitalaudio.dk/







If I should choose differently in the future – I would assume it would be a design based on some of the new DAC chips with extremely good specs…(Sabre..?).

Peter – thanks for you feedback and for watching my privacy – but I do not mind to be called by my first name!

Hmm…I think I will call Pedal later today about the plug-in…It will not be the first time that I receive some mentoring from his side – however – Pedal is lagging behind ( )…no digital XO…..any plans to implement that soon Pedal…?

And – we share the same enthusiasm for some very special Norwegians amps…


Best regards
Ole Martin “OMF”

Hello!

As I am about to step into the world of PC playback - I am opening this thread for feedback/advice.

I do have a plan....but all advices are welcome! And I still have some issues that need to be sorted out.

This thread on a Norwegian hifiweb is about my system and shows the path I have followed up to today!
 http://www.hifisentralen.no/forum/index.php?topic=11130.0

(I also see that there are a few other fellow Norwegian audiophiles here!)

So....my system will be - and I start backwards:

The Overkill Audio Finale speakers
(Three way, no passive crossover, Manger headunit +500Hz, Open baffle mid bass 150-500Hz, Sealed box 12Inch Beyma subwoofer)

3 x Dynamic Precision DP A1S
Balanced poweramp, 2 x 250W, extremely good specs (and sound)

Digital Audio Denmark AX24 converter
6 channel balanced DA converter.

Lynx AES 16SRC PCIE interface.

XX High End
Audiolense room correction software!

This is where I am currently - and I am trying to set this up.

I would like to have two different ways of playing music:
Primary source - XX High End, playing my ripped music on the dedicated audiop PC:
Secondary source - Output from a Behringer DEQ2496 - connected by AES/EBU to my Lynx PCI card (this is for radio, TV and a Cd drive for CDs)

There are however a few challenges - I will adress them with numbers:


1 - The Audiolense software generates a filter file - which in my case also includes the active crossover. So - i need to somehow "play" this filter in a digital loop in the Lynx mixer? Someone has tipped me about Bidule..? What is consider to be the best SW for this kind of "loop"?

2 - I need a remote for the system! What is the best SW to operate the Music PC from a remote laptop?

I believe that is my two main questions to start out with......

Best regards
OMF