Clarion DPX11500 test/write-up....
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Gold Member Username: SouthernrebelMonroe, Louisiana 2 DD3515s, 2... Post Number: 5494 Registered: Mar-04 | Well...I'll start w/ this first off: OUR SOUND BOARDS CHARGING SYSTEM IS LACKING!!! -46A power supply -Optima d34 batt -Horrible Voltage Drops!!! (~10.5v!!!) We are making a HUGE upgrade when when move everything into the sound room. Prolly 2 Kinetik 2000's or 2400's...and an 85A power supply. Ok...Here is what I come up with Clarion DPX11500: Rated 1500w @ 1 and 2ohm @ 14.4V (Remember this, it will be very important later!!!) Tested at 1ohm DCR w/ 2 Clarion PXW12's 50hz: 46.6V x 23.2A = 1081.21w @ 2.01ohm reactive Current draw: 152.1Adc Voltage Dropped to 10.23Vdc!!! Power Draw: 1556W >>>>> 69.5% Efficient 60hz: 43.9V x 25.0A = 1097.5w @ 1.756ohm reactive Current draw: 146.2Adc Voltage Dropped to 10.68Vdc!!! Power draw: 1561.4W >>>>> 70.3% Efficient DO NOT DRAW CONCLUSION RIGHT NOW...KEEP READING!!! Now...Look at like this: This amp was seeing 10.46Vdc (on average) on burp. So...If they maintain 69.9% efficiency at 14.4V and continue to draw 149.15A (on average) they will produce ~1501.28W @ ~1.75-2ohm reactive. I'm going to go out on a limb here not and say this: I feel that this amp will be more efficient than ~70% w/ a better charging system (batts). The amp was only powered by 1 yellow-top and a 46A power supply...and the wire from the batt to the amp was Audio Pipe 4ga (prolly ~5-6ga really). I'm willing to bet that our screwy voltage drop really hurt efficiency. If given say 2 batts and 1/0ga power/grd...I would say this amp could easily be 75-80% efficient. Those #'s are more than reasonable for todays Class-D amps. Saying this...Look at these calculations: 13.8Vdc x 149A = 2056.2w drawn At 78% efficiency that's 1603.84W!!! (Hell at 75% its 1524.15W) Now, lets put that into context. Here is what a DD M1A did on our sound wall w/ the same charging and same subs. DD M1A: 60hz 34V x 18.2A = 618.8w @ 1.87ohm reactive Current draw: 72.1Adc Voltage Dropped to 11.3Vdc Power Draw: 814.73w >>>>> 75.95% efficient Using the same 13.8V forula as before: 72Adc x 13.8V = 993.6 drawn At 75% efficiency that's 745.2w...which is more that reasonable for the M1A. So, I'm and going to stand by my original words and say this: The Clarion DPX11500 will produce rated power. But like w/ any 12V audio system, you have to be able to supply it w/ the current it needs! ***These tests were done listening for clipping by ear...I will most likely retry when I get my O-scope. /review |
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Silver Member Username: Mj23dynastyHarrisburg star city, Pistolvania USA Post Number: 202 Registered: Oct-07 | sooo in lahmans terms??? i think im just going to go with the saz 1500d anyway and keep that clarion in mind |
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Gold Member Username: SouthernrebelMonroe, Louisiana 2 DD3515s, 2... Post Number: 5495 Registered: Mar-04 | Read the last 4-5 lines. |
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Silver Member Username: SomedonniedudeIllinois United States Post Number: 378 Registered: May-07 | Nice review man. Whats the price on these amps? |
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Gold Member Username: InsearchofbassPost Number: 7154 Registered: Jun-04 | http://search.ebay.com/search/search.dll?ht=1&from=R4&satitle=Clarion+DPX11500+& sacat=293%26catref%3DC6 |
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Gold Member Username: FrkkevinResonant Engineering..., Fort Worth... Email Post Number: 4078 Registered: Nov-05 | boo on the new DD M1as ... nice on the clarion tho.. how distorted does the signal get as the voltage output increases? |
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Gold Member Username: SouthernrebelMonroe, Louisiana 2 DD3515s, 2... Post Number: 5498 Registered: Mar-04 | Just alil something to say on the M1A...its was producing a CLEAN signal during the tests  The Clarion was clean too. |
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Gold Member Username: FrkkevinResonant Engineering..., Fort Worth... Email Post Number: 4079 Registered: Nov-05 | you should have seen the sweep i ran with the oldschool DD M1 on the XXX.. the wave was soo perfect and pretty lol.. seems a cleaner signal than most put it at ill have to whip out the DMM and see what it does for power |
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Gold Member Username: 420alldaylongPost Number: 2915 Registered: Sep-06 | Canaan How much do you sell the Clarion DPX11500 for at your store? |
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