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Author Topic: Yorkville LS......  (Read 16562 times)

Mac Kerr

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Re: Yorkville LS......
« Reply #30 on: April 26, 2006, 09:38:42 pm »

Evan Kirkendall wrote on Wed, 26 April 2006 21:36

I wouldnt want to put more then 1200w into them... Everyone does go over the program ratings, but they stay within the 70% of the max power of the speaker. The LS608/808's use the same woofers and are 400/800/1600. 70% of 1600 is 1200, so thats right on the money. I'd be worried about putting anymore power into them...
Why?

Mac
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Evan Kirkendall

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Re: Yorkville LS......
« Reply #31 on: April 26, 2006, 09:45:57 pm »

Mac Kerr wrote on Wed, 26 April 2006 21:38

Evan Kirkendall wrote on Wed, 26 April 2006 21:36

I wouldnt want to put more then 1200w into them... Everyone does go over the program ratings, but they stay within the 70% of the max power of the speaker. The LS608/808's use the same woofers and are 400/800/1600. 70% of 1600 is 1200, so thats right on the money. I'd be worried about putting anymore power into them...
Why?

Mac




I can already push them to their limites with 1200w(bottomed em out too). Smile

I can get 126db cont. out of them without clipping the amp... Good enough. Wink
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Mac Kerr

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Re: Yorkville LS......
« Reply #32 on: April 26, 2006, 10:10:26 pm »

Evan Kirkendall wrote on Wed, 26 April 2006 21:45

Mac Kerr wrote on Wed, 26 April 2006 21:38

Why?

Mac

I can already push them to their limites with 1200w(bottomed em out too). Smile

I can get 126db cont. out of them without clipping the amp... Good enough. Wink
Either they can handle their rated peak power, or they can't, which is it? If you can bottom out the drivers with less than the maximum peak power, it is an unrealistic rating. The peak rating of 1600W is only 3dB above the 800W rating, to allow for peaks. A 3dB peak is pretty small, so with 1600W peaks the heat generating power should be at or below 800W. I see no reason to avoid using amps with the capability to deliver 3dB peaks.

Mac
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Mike McNany

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Re: Yorkville LS......
« Reply #33 on: April 27, 2006, 10:17:49 am »

Evan Kirkendall wrote on Wed, 26 April 2006 21:36


I wouldnt want to put more then 1200w into them... Everyone does go over the program ratings, but they stay within the 70% of the max power of the speaker. The LS608/808's use the same woofers and are 400/800/1600. 70% of 1600 is 1200, so thats right on the money. I'd be worried about putting anymore power into them...


Evan



75% actually or 1.5X program rating Very Happy

Yes, that was was my initial concern & logic for powering them the way I did, plus that amp allowed me to use it in stereo for a set of early SP2s I had at the time for small SOS gigs. I like flexibility in my power amps since I only plan on keeping just 3 (4 if I bi-amp tops). Since upgrading monitors, the PLX2402 would be a better match on monitors and the current monitor PLX1602 would work for the bi-amp tops. So I am debating getting a 2nd PLX2402 or larger. Tops are now full range in stereo off a PLX3002. (& if I get the PLX3402 I'd have a 4 amp straight flush  Cool

Mike McNany
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Lee Jacobson

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Re: Yorkville LS......
« Reply #34 on: April 27, 2006, 06:46:30 pm »

Rory,

 That may be true, but yorkville is known for being pretty conservative with their power specs as well. AFAIK, the cones in the LS1208 are the 18TBX1000, which B&C lists as 2000W program. Yorkville puts them in the 1208 and calls it 1200w program. Thermal issues, excursion issues?? I dunno. Another case in point, the 15" cone in the TX4. EOM B&C, 4" VC. Yorkie sez 700W program. All of the  "off the shelf" 4"VC 15" cones in the B&C line are at least 1400 program. Again, thermal, excursion, or are these drivers actually different?? I dunno. I do know Yorkie is "famous" for doing things like putting two 4ohm 18s in a 2x18 box, and calling the box "4 ohms". Is that because of their "other than typical thiele tuning" stuff, or are they looking at the HUGE impedance bump at the resonant freq of the system to bring the system as a whole up, or some other voodoo? I know guys who regularly run the 15" cones in TX4s off AP6040s, and bridge AP6020s into LS1208s, with zero ill effects. Just another opinion from down on the farm....


Lee
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Lee Jacobson
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Evan Kirkendall

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Re: Yorkville LS......
« Reply #35 on: April 27, 2006, 08:47:38 pm »

Rory Buszka wrote on Thu, 27 April 2006 20:37

A more reasonable explanation is this: B&C does custom OEM work with manufacturers (like the italian firm FBT, who was among B&C Speakers' earliest customers). I don't think the Yorkville products are based around standard B&C products, but rather OEM versions built to Yorkville spec based on what kind of performance they want from their product.

I suppose I could email Yorkville and ask.



No need to email. Ive already been there. B&C does build custom drivers for all their boxes...



Evan
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Lee Jacobson

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Re: Yorkville LS......
« Reply #36 on: April 27, 2006, 09:05:29 pm »

Rory,

 Some of the drivers are off the shelf models, some are OEM. Oddly, some are custom off the shelf, like the HF driver in the TX series. It is the DE-750Y, with a 1.4" throat. According to B&C, the DE-750 is a 2" throat, but is also availible with a 1/4" throat as the 72, or 75, or some other model. I know the 15" cones in the TX4 are OEM, as are the 15s in the TX8 (different from the TX4). The TX9 used to be RCF L18P300, now they are B&C. OEM, off the shelf, dunno. I mentioned "to someone" that YS uses OEM B&C in their boxes, while this manufacturer I was talking to uses off the shelf models. They (the manufacturer) were very critical of YS for using OEM drivers, as if they are somehow inferior to off the shelf models. I think not. I feel like they are purpose designed/built to do exactly what YS wants hem to. I know in the case of the TX4, I have had more than one "going from a 15 to a 2 is no good" person SWEAR the cone is the TX4 had to be a 12.....

Good stuff, Yorkie.
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Lee Jacobson
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Brevard Sound Systems
Deltona, FL
386 717 4600

Steve Shafer

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Lee-Yorkville using BMS & 18 sound as well
« Reply #37 on: May 01, 2006, 08:20:14 pm »

Lee:

Thanks for the inside info on Yorkville.  I for one consider Yorkville's mid and upper line speakers (power amps too)  to be some of the better bang for the buck products on the Market.

From my correspondence with Yorkville, I am aware that they are using several BMS compression drivers.  In addition, i have heard that they were looking to use some 18 Sound product as well.

my .02

Steve Shafer
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