Crown XLS- for the rest of us!

OzarkTom · « **Reply #780 on:** 18 Dec 2014, 10:57 am »

Quote from: a.wayne on 18 Dec 2014, 10:09 am

The XTI have (dsp) the features you seek and still uses drivecore ......

I keep looking for the mention of Drivecore, but Crowns website never even mentions it.

http://www.crownaudio.com/usa/amplifiers/xti-2-series.html

a.wayne · « **Reply #781 on:** 18 Dec 2014, 02:28 pm »

You are right i compared power draw and dissipated and its different ...

I Guess we have to wait for the comparision between XLS/XTI to know which way to go, the dsp and xover flexibility in the xti is the winner to me if using to power subs .....

JohanH · « **Reply #782 on:** 18 Dec 2014, 04:12 pm »

Quote from: OzarkTom on 18 Dec 2014, 10:57 am

I keep looking for the mention of Drivecore, but Crowns website never even mentions it.

http://www.crownaudio.com/usa/amplifiers/xti-2-series.html

Looking at the power dissipation figures I'm doubting they are even Class-D..

Odal3 · « **Reply #783 on:** 18 Dec 2014, 04:45 pm »

From the Crown forum:

"Hmmm... not advertised I guess. Here's a brief rundown:
XLS Drivecore: Class D
XLS-D: Class AB
XTi/CDi/DSi 1/2/4002: Class AB+B
XTi/CDi/DSi 6k: Class I
CTs600/1200: Class AB+B
CTs2k/3k: Class I
MAi: Class I
iTHD: Class I"

JohanH · « **Reply #784 on:** 18 Dec 2014, 06:53 pm »

Thanks,

intrigued by Class I but cannot find anything on Crown website or elsewhere (crown technical paper returns 404 error)

steve f · « **Reply #785 on:** 18 Dec 2014, 08:51 pm »

Class I ?? Perhaps it's just a marketing name at this point. Did anyone try a patent search?

a.wayne · « **Reply #786 on:** 18 Dec 2014, 09:20 pm »

Rasta amp .............

jk@home · « **Reply #787 on:** 18 Dec 2014, 11:02 pm »

http://www.crownaudio.com/media/pdf/amps/137234.pdf

mjosef · « **Reply #788 on:** 19 Dec 2014, 01:36 am »

Crown XTi are class A/B with a smps. Like so...

The DSP in the XLS is a stripped down version of the one used on the Xtiseries, which offer slopes from 6-48dB, and infinitely variable crossover points to 3 decimal places between 20-20KHz, 6 parametric EQ on the input and 8 parametric EQ on the output...etc.

Folsom · « **Reply #789 on:** 19 Dec 2014, 01:47 am »

They feature an input filter too, interesting. Crown's got game these days.

Alan · « **Reply #790 on:** 19 Dec 2014, 03:06 am »

OK I'm getting confuzled. We got the XLS with basic crossover ability. It seems the DSI and XTI add more dsp functionality. Now I'm seeing an XLi which looks to be bare bones, least expensive. The only one billed as 'drivecore' is the xls.

Seems that xti would make a heck of a woof amp. Might give it a try.

a.wayne · « **Reply #791 on:** 19 Dec 2014, 03:22 am »

Must be an echo in here .....

JohanH · « **Reply #792 on:** 19 Dec 2014, 03:39 am »

Quote from: jk@home on 18 Dec 2014, 11:02 pm

http://www.crownaudio.com/media/pdf/amps/137234.pdf

Thanks for finding this.

But frankly I lost interest after their marketing bs describing class a and b.

OzarkTom · « **Reply #793 on:** 19 Dec 2014, 11:25 am »

Amazon has taken off the 15% off deal.

dlaloum · « **Reply #794 on:** 19 Dec 2014, 01:19 pm »

Seems to me the Class-I amps are another variation on PWM based amps. In other words, Class-D.

The twist here is designed for power efficiency, not clear what it does to sound though - if anyone tries it, would be nice to get some feedback compared to well known audiophile contenders...

OzarkTom · « **Reply #795 on:** 20 Dec 2014, 05:18 am »

My buddy Rex bought these binding posts off of EBay and they just arrived. He says these are a work of art. If he gets time this weekend, he will see if they will fit on the Crown with no mods.

http://www.ebay.com/itm/4P-Copper-Hi-End-Amplifier-Speaker-Terminal-Binding-Post-GF-/291331442836?pt=LH_DefaultDomain_0&hash=item43d4b50894

mjosef · « **Reply #796 on:** 20 Dec 2014, 05:44 am »

He will have to enlarge the holes in the plastic plate, I have the red copper version of those, the post is about 1/4" thick.

wushuliu · « **Reply #797 on:** 20 Dec 2014, 05:47 am »

Quote from: OzarkTom on 20 Dec 2014, 05:18 am

My buddy Rex bought these binding posts off of EBay and they just arrived. He says these are a work of art. If he gets time this weekend, he will see if they will fit on the Crown with no mods.

http://www.ebay.com/itm/4P-Copper-Hi-End-Amplifier-Speaker-Terminal-Binding-Post-GF-/291331442836?pt=LH_DefaultDomain_0&hash=item43d4b50894

Hm, I dunno. You can get the Cardas copper posts for the same price. Unless they offer proof I've found the chinese ebay connectors to sometimes be not what they claim. They do look pretty though.

mjosef · « **Reply #798 on:** 20 Dec 2014, 06:01 am »

My Xti is over 3 years old now, warranty is over...time to mess with shit...

Starting with a clean slate...

I had an extra set of CMC out of Taiwan, had to drill out the holes to fit them,

Its back in on my subs...full range evaluations will have to wait until the tour-XLS gets here.

JohanH · « **Reply #799 on:** 20 Dec 2014, 06:44 am »

I'd rather place my trust in industrial strength connectors.
Hirschmann PKNI 20 B rated 63A; should be enough