[JoshK]

Just realized those Audiom W 13" woofers go for about $1k each, so the price on these is really good.  Maybe too good    Don't want to burn myself if I touch them.

Later in the week I'm going to drive down to their manufacturer http://www.celestialav.com to audition a similar pair.  If I like them I just may buy this pair.  At the least they would make nice rear channels  

I've asked more specifics about the "police action".  Obviously I need to make sure they aren't stolen

 

If they aren't stolen, grab em then for that.  You can always pull out the woofers and place an ad on diyaudio.com and recoup most all your cost and still have the rest of the drivers and the cabinets to play with, but likely you'd just keep em.

[Bingenito]

'cept for their tweeters which are bloody awful!

The TC90 and 120 are but that tweeter is awesome

[doug s.]

yup, those focal drivers are fantastic

'cept for their tweeters which are bloody awful!

here, reasonable persons can disagree - i think they're amongst the best.

regards,

doug s.

[ekovalsky]

if they're being adwertized on the 'net like they are, on a prominent site, w/reference to police action, they're likely not stolen, but seized property, due to drugs, unpaid taxes, etc.

doug s.

The seller told me about the local storefront which is definitely a legit business.  However, I'm still not sure who exactly is selling this pair and why he didn't want me to mention it to the makers.

I've requested more details about the "police action" and the speakers in general.  I'll update this thread if I get any interesting info, or end up bringin them home.

[Bingenito]

Personally with those drivers I would drop $2800 cash in his hand and run with it.

*** As long as you have a contact for support in the event you want crossover tweaks, need a new driver, etc. Focal is not selling drivers to the public anymore.

Based on what I have read once the stock drivers are gone they are gone for good.

Again the Audium tweeter is killer.

[Al Garay]

Any chance that the JVC RX-F10 digital receiver 6x100watts can provide the power to a DEQX? It does not have a pre-amp input.

The JVC unit is drawing as much or more fanfare than the Panasonic XR45.

http://www.buy.com/retail/product.asp?sku=90141458&SearchEngine=DealTime&SearchTerm=90141458&Type=PE&Category=Elec&dcaid=15891

[Bingenito]

The system I heard with DEQX used 2-xr45's and an XR25 for triamping

[Al Garay]

How were they connected?

[Bingenito]

I do not have a clue. It was 1am and I had a 3 hr drive ahead of me or I would have checked everything out.

Roger if you are watching this thread can you address Al's question please?

Thank you

[John Ashman]

Al, not to be all salesmany on you, but if you like digital amps and DEQX, wouldn't it make sense to get something like NHT's Xd?  

Another option if digital isn't critical is NAD's T753 or T763 receivers which have pre-out/main-ins so it can be your preamp and 6-channel amp system - I was running my Thielensteins off of this system and it was awesome.

[Bingenito]

Al, not to be all salesman on you, but if you like digital amps and DEQX, wouldn't it make sense to get something like NHT's Xd?

You do not miss a chance to get a plug in do you?

It is great that you love XD but as another member here mentioned it gets a little old after a while if recommending DEQX and XD is all you say.  (yes I know this is a DEQX thread)

In this case you recommend NAD which you also sell.

This is really self promotion and not open discussion.

I am not knocking you but just pointing out that this is becoming a trend.

[ekovalsky]

Al, not to be all salesmany on you, but if you like digital amps and DEQX, wouldn't it make sense to get something like NHT's Xd?  

Another option if digital isn't critical is NAD's T753 or T763 receivers which have pre-out/main-ins so it can be your preamp and 6-channel amp system - I was running my Thielensteins off of this system and it was awesome.

I'd be a lot more interested in the Xd if NHT took full potential of the DEQX.  To me, since my only source is digital, that means digital outputs of the DEQX feeding PWM amplifiers (like the TacT) which eliminates extra and unnecessary ADC then DAC conversion steps.  

Hopefully NHT will continue developing the Xd concept and even more ambitious projects will be forthcoming.

[John Ashman]

Benginito, I'm sorry, but I think that commentary is unwarranted.  I haven't been leaping from thread to thread promoting Xd or DEQX, I've only, in my recollection, talked about them here where it's entirely in context.  Furthermore, I've never really even mentioned NAD or Meridian or other things I sell.  The NAD was mentioned because it *can* run a full DEQX system - I've done this and they're the only receivers I know about that have pre-out/main-ins for every channel, making it *ideal* for this use.  I also regularly recommend things such as the Salk HT3 speaker which I have nothing to do with.   I don't try in any way to sell anything here except that I advertised some open box DEQX units in the appropriate forum.  When I'm here, I'm here for the *exact* same reasons you are.  I'm an enthusiast.  I'm not here to sell *anything*.  That's what sucks.  I sell audio because I love it.  Yet, when I try to fit in on a forum, some treat me like the enemy.  Most people are enthused enough about audio to buy it.  I'm enthused enough to make it my living even though I could make more money doing almost anything else.  If you can't treat me as an enthusiast, I invite you to not read my posts.  If Josh hadn't asked me to do it, I wouldn't post my affiliations because I don't *want* to be a salesguy.  And Josh will vouch for that, I specifically asked to not do so because I just want to be "one of the guys".  Also, notice that, even though I've had my Xds for 6 days now, I haven't gone on a binge talking about it.  Even though it's been nothing but a blast playing with them.  

Eric, I agree with you.  I'd love to see an Xd with digital ins, volume control and, hopefully, full analog preamp section.  I'd settle for a couple of digital inputs and digital volume.  I think it will happen somehow, eventually.  It sounds like priorities prevented it

[John Ashman]

FWIW, here's my original e-mail to Josh when he asked me to, not only post my affiliation, but to hang around and answer questions on the forum:

From:
John Ashman

To:
JoshK

Posted:
Wed Jan 19, 2005 7:01 pm

Subject:
Re: Question


Hi Josh,
Thanks, yes, I'm a DEQX dealer, though I'm not really trying to promote it. Well, maybe a little, but not my connection with it. I just happen to understand it very well. But if you'd like me to put my dealer status on there, I'd be glad to, I only thought that this would make my comments or answers seem self-serving. Just let me know how to handle that though. My forum is just like yours, just more modest.

John

_________________
John Ashman
Audio Designs
NAD/NHT/DEQX/Fosgate/Meridian Cheerleader

[John Ashman]

Also, apologies to Al, since I forgot we talked all this through privately a month or so ago, but I forgot about it.  And, yes, he already has DEQX, so getting an Xd would be somewhat redundant!

[Al Garay]

My plans are to build the Hypex UcD amps following Mac's advice with 4 UcD180 modules for highs and mids and 2 UcD400 modules for the low-end ... three channels per side in nice black anodized aluminum cases and using quality components. This will take awhile. So, the JVC RX-F10 is an attractive inexpensive short term solution that could also function as a HT receiver.

Honestly, I think the NHT XD system is perfect for people who want the quick solution with the complete package and consultation that you offer. I prefer the experience of putting the system together and flexibility to use the DEQX PDC with different speaker configurations from mac's sealed 2-way with dipole subs to his most current MTM dipole monitor with dipole subs to a line array of Aurum Cantus ribbons with Accuton mids and  PR subs to the one I most like .... right now ... BESL Series 5 MTM with the XLS subs.  There are lots of possibilities.

By the way, I'm not bothered by your salesmanship. I have my active filters turned on. And you do add value to the conversations.

Al

[Rick Craig]

Question for John :

Can you do the measurements, apply driver response correction, and add the crossover without inserting any of the time domain / phase correction?


Rick

[John Ashman]

Hi Rick,
    I'm not sure, but I don't think so.  I've never tried that, but I can't think of how you could separate those.  The PDC corrects for FR and time/phase with one algorithm and you can set the range over which it corrects, but, let me think on that.  I'd need to open up my software to look at that.  Of course, I don't see any downside to correcting for time/phase.  Besides, it really needs to do this in order to do the driver EQ really well.

[DSK]

I'm no crossover expert, but I do realise that certain drivers require special treatment. For example, rigid drivers like the SEAS Excel magnesiumn drivers require notch filters around 4.6khz, others require complex crossovers that may start at 6db/octave then become steeper as they go, etc etc.

Does the DEQX allow for all of these 'specialist' requirements ...is there anything that can be done in a complex passive crossover that can't be achieved with the DEQX?

Also, does the DEQX do things like notch filters 'automatically' (ie. measure and self adjust) or is there some crossover knowledge and a manual process required?

[ekovalsky]

I'm no crossover expert, but I do realise that certain drivers require special treatment. For example, rigid drivers like the SEAS Excel magnesiumn drivers require notch filters around 4.6khz, others require complex crossovers that may start at 6db/octave then become steeper as they go, etc etc.

Does the DEQX allow for all of these 'specialist' requirements ...is there anything that can be done in a complex passive crossover that can't be achieved with the DEQX?

Also, does the DEQX do things like not ...

The notch filter usually used with the Excel drivers is necessary with analog crossovers of low slope to prevent ringing, since even low level signal at the problem frequency is problematic.  Since the DEQX can implement an effective "brick wall" filter below the problem frequency, there is no output at the problem frequency and no notch filter is needed.  

For drivers that have uncontrolled response within their usable range (for instance some of the B&G planars) the DEQX will reduce output at the appropriate frequencies resulting in a flat response.  So the extra passive parts aren't needed.

Complex passive crossovers are usually designed to address phase issues and decrease signal out of the desired pass band.  DSP provides a much more elegant and effective solution.