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PL380 vs PL6 vs Crest Pro vs 9200

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pfly View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pfly Quote  Post ReplyReply Direct Link To This Post Posted: 24 January 2009 at 3:26pm
Just remembered something Rog wrote:

Quote

Ian,

I used to run loads of the PPX 450, 900, 1200 and 1600. The only problems I had were the power switches would fail, fans could stop working and if you don't clean them out often then can over heat and thremal out.

But yes, built like a tank. Its the PPX's, the V800 and the Rauch amps that were the inspiration for the new infinite v2's. If they could do it then we can do it now.

I'm just so pissed off with the whole do it cheaper routine. Oh, how much does that component cost. Ah, well can we get away with using one for half the price. That stinks. My philosphy is, how many amp does that transistor need to switch. 40 amps. Well lets use a 120 amp transistor then. For the power rail switching transistors I used 8 transistors and each one can handle nearly 150 amps. Its total over kill, but I can't take any chances this time.


I think that some manufacturers like Matrix and Void spec the minimum power their amps are putting out, regardless of situation, while most manufacturers quote the maximum output their amps are capable of in the most optimistic situation, or it may not be even the measured output but simulated or calculated.

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Xmax extreme View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Xmax extreme Quote  Post ReplyReply Direct Link To This Post Posted: 24 January 2009 at 3:44pm
Originally posted by levyte357 levyte357 wrote:

Originally posted by Xmax extreme Xmax extreme wrote:

exciting stuff guysThumbs Up...keep the discussion going...
Downloaded the techinical data of the lab, the FP14000 has more ouput current capability which is 83A peak compare to the  FP1300 which has 53A, with 195V remains constant on both models..


Have spoken to a few friends who own a few Labg amps, and it seems their strong point is not large current drawing for sub, but stability of amp, under sagging/hostile supply.


Seems they live up to their reputation lev.... its one of the lab strong points as stated in their technical specs.


---------------------------------------------------------------------------------------------
Regulated Switch Mode Power Supply (R.SMPS™) – Output
power remains constant even with significant drops in the mains
voltage.

Lab gruppen sound quality – is optimized for
sustained performance into extreme low-frequency loads, yet it
also maintains Lab.gruppen’s reputation for exceptionally smooth
and transparent mid- and high-frequency response.

Patented Class TD® amplifier topology – Road-proven output
stage delivers Class B audio quality with Class D efficiency. 
-----------------------------------------------------------------------------------------------

There was a thread I have read before about the labs intelligent circuit and speaker protection.
I can't recall that website.
That as the THD noise increases to 10%,  the lab will cut down its output so as not to damage the speakers due to distorted signals. 

Here is another discussion from PSW.. about FP13000.... interesting to read also..Smile

http://srforums.prosoundweb.com/index.php/mv/msg/18480/0/0/0/ 

Another review on Lab FP6400
http://www.proaudioreview.com/article/418



Edited by Xmax extreme - 24 January 2009 at 3:52pm
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Don't criticize your own competition, it looks like a publicity of your own commercial products.
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Xmax extreme View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Xmax extreme Quote  Post ReplyReply Direct Link To This Post Posted: 24 January 2009 at 4:16pm
oh here it is.... its the QSC PL6 and Lab fp6400

http://www.live-audio.com/messages/98358.html
Maximum Excursion

Don't criticize your own competition, it looks like a publicity of your own commercial products.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tekasis Quote  Post ReplyReply Direct Link To This Post Posted: 28 January 2009 at 4:00pm
Originally posted by levyte357 levyte357 wrote:

9001 used to be my dream amp to have, buth after having 35Kg Proline 2700, 30kg MPX1200, 39kg Nathon HI-1400, 35kg CA18, I have no intention of buying 1x 50kg lump of amp.Dead

I would be more likely to buy another CA18, or get 2x VZ5s, or get PL6.
 
Borrowed your quote from the Crest CC Range thread Lev, but need to say, what do you expect lifting them so high ?
 
What they doing up there ? Weren't you worried they toppled over ? LOL
 
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 28 January 2009 at 4:38pm
Originally posted by Tekasis Tekasis wrote:

Originally posted by levyte357 levyte357 wrote:

9001 used to be my dream amp to have, buth after having 35Kg Proline 2700, 30kg MPX1200, 39kg Nathon HI-1400, 35kg CA18, I have no intention of buying 1x 50kg lump of amp.Dead

I would be more likely to buy another CA18, or get 2x VZ5s, or get PL6.
 
Borrowed your quote from the Crest CC Range thread Lev, but need to say, what do you expect lifting them so high ?
 
What they doing up there ? Weren't you worried they toppled over ? LOL
 
 


I Have the Ultradrive, MDX4600XL Compressor/Limiter, and CA18 in 1x 6u Gator, so was simple enough to plonk it on top of the existing amp rack.

Also allowed nice short power lead from 16A supply to CA18.Embarrassed
"Who am I? I'm the guy who does his job.. You must be the other guy".
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RiddimKid Quote  Post ReplyReply Direct Link To This Post Posted: 28 January 2009 at 5:06pm

The bottom rack looks Huge!

 
Whats the Chevin for??
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 28 January 2009 at 5:18pm
Originally posted by RiddimKid RiddimKid wrote:

The bottom rack looks Huge!

 
Whats the Chevin for??


Chevin Q900/STR 3000H relegated to running monitors, by venue FOH guy. LOL
"Who am I? I'm the guy who does his job.. You must be the other guy".
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Post Options Post Options   Thanks (0) Thanks(0)   Quote audionik Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2009 at 3:58pm
Originally posted by levyte357 levyte357 wrote:

Originally posted by king david king david wrote:

EDIT: Just found these amp shootut results (again),

http://www.binkster.net/AmpShootout_20-20k_results.xls

hi!
the crest pro 8200 come out strong from the test, isnt it?


The Crest 8200 isn't on the list, the below is an extract of the more interesting amps.

Bink Amp Shootout March 27-28, 2004 Manufacturer rating in Watts/ch, 4 Ohm stereo mode Shootout results: Both channels working, channel A highest clean level or level just prior to 1% THD+N, 117vac supply Shootout results: Both channels working, channel A highest clean level or level just prior to 1% THD+N, 96vac 'sagging' supply Inputs terminated with 600 Ohms
Mfr Model 1k 20-20k 20Hz 1kHz 20kHz 20Hz 1kHz 20kHz Noise at idle, in dBr A
Crest 8001 1225 1200 800 1141 1728       -70.645
Crest 8002 1400 1350 1311 1480 1822 1313 1481 1828 -80.061
Crest 9200 2200 1950 1282 1664 1504       -79.548
Crown MA-3600VZ   1565 310* *         -70.187
EV CP 3000S 1100 900 905 1069 1304 573 675 856 -80.099
EV P3000 RL 1300 1200 1043 1174 1778       -69.233
QSC MX 3000a 1250 1200 1059 1242 1905       -72.477
QSC PL 6.0 II 2200 2050 1719 1893 3241 1289 1723 2853 -76.926
QSC PL 6.0PFC 2650 2500 2289 2549 2890       -77.624
QSC PL 9.0PFC 3400 3200 3152 3293 4804 * 3021 4766 -76.806

Compare how close in "real performance" the QSC MX3000a is to the Crest 9200.

Even more suprising is the comparison between MX3000a and EV P3000.
 
Wich one between 8002 and 9200 is better on 2x18 sub?
 
By.
 
Fabio.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote audionik Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2009 at 3:59pm
Wich one between 8002 and 9200 is better on 2x18 sub?
 
By.
 
Fabio.
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noiseboy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote noiseboy Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2009 at 9:31pm
Hey guys all this talk of big amps,big power supplies? you need the professional advice from a DJ with 30 years experience. 400 watt Peavey Monitor,never need more than 200 watts, Marvin says so and that must be right!

Sorry couldn't resist, made me chuckle all dayLOL

 Chris
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www.cornucopiafestival.co.uk
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 13 April 2009 at 12:02am
Originally posted by noiseboy noiseboy wrote:

you need the professional advice from a DJ with 30 years experience. 400 watt Peavey Monitor,never need more than 200 watts, Marvin says so and that must be right!

Sorry couldn't resist, made me chuckle all dayLOL

 Chris


Let him bring that to a Jamaican wedding reception with 300 people in a big hall.

LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote noiseboy Quote  Post ReplyReply Direct Link To This Post Posted: 13 April 2009 at 12:31am
What?.... with a 400watt Peavey Monitor, no proplem for Marv.....spreading happiness wherever he goes.........Big smile.............Ouch
www.ctaudiovisual.co.uk
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