Everything posted by sundownz
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No More other brand re-cones.
We will no longer re-cone other brand woofers. Please do not ask. I suggest the following people / companies for re-cones : David Moore -- [email protected] Nick @ Incriminator - [email protected] FI Car Audio Thanks,
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Nightshade-X (NS-X) First Photos
Still working on perfecting them... will be doing more testing soon.
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Sundown Z15 Special ?
No, these are our 1000-watt drivers.
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From: Used, B-Stock, Refurbished Amps, and MISC
[email protected] When sending me a payment make detailed notes of what it is for.
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Sundown Z15 Special ?
Now that everyone knows what they can do... I am thinking about opening a special on them to get more reviews on these bad boys. The special would be equal to the pre-sale @ $300 each. Who wants some ?
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Sax 125.2 and the Sundown 3000D?
That is fine for both amps.
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Sax 125.2 and the Sundown 3000D?
How much over 15v ? The 3000D works on 18v out of the box - you only have to watch the 125.2 if you go to higher voltages. It will run up to 16.0 (sixteen point zero) volts.
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From: Used, B-Stock, Refurbished Amps, and MISC
Yes, they are all D versions.
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Saz 3000 at .5 ohms
One thing you are over-looking. Real music does not = one sine wave at a time. http://www.audiograph.se/subpages/technica...odamplifier.htm "The upper graph illustrates the conventional way of measuring the loudspeaker impedance. The lower graph illustrates the dynamical approach. We took a commercial ’off-the shelf’ loudspeaker and did a standard impedance plot for it. We swept the frequency from 20 Hz to 20 kHz, measured the input voltage and current, and calculated the impedance. However, instead of using a sine wave input signal, we used a square wave. The reason for this is that square waves consist of a large amount of sine waves, as does music. The square wave is of course not an equivalent of music, but for this test it was an easy way of showing that a complex signal (not just a simple sine wave signal) may make the load, from the amplifier point of view, very low. If you study the graph resulting from the test, you will probably agree that not only is it necessary to check the amplifier’s behavior for resistive, capacitive and inductive loads – the amplifier should also be checked for loads with lower impedance than the nominal impedance of the loudspeaker. This proves to be very important, since a loudspeaker with a nominal impedance of 4 ohms will sometimes have an actual impedance of 1 ohm or less. The PowerCube helps you perform testing of an amplifier, taking all these load attributes into consideration. " ---- Fortunately for people that run our amps at 1/2 ohm they are robust enough to handle it under most conditions anyway.
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Amp Rating Method
People worry too much about "impedance rise" due to SPL competitions, IMO. Our amps will exceed ratings on a resistive load and can still hold up to their ratings a good bit above that on a reactive load.
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Deadener Coming to the Jeep
My roof was EXTREMELY weak so I'm not all that surprised. It was awful *laughs*
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Deadener Coming to the Jeep
My peak did change already : 48 Hz - 150.7 dB 52 Hz - 151.9 dB 53 Hz - 152.0 dB 54 Hz - 151.9 dB 55 hz - 151.6 dB Frequency is up 3 hz to 53 hz now. Counting the gan from frequency change I am now up 0.9 dB total.
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Deadener Coming to the Jeep
Nice :)
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My SPL deadener Log
I ordered 216 ft^2 of Damplifier Pro to (hopefully) finish the job
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Trade-In Program
I have probably acquired and sold 50+ amps already from trade-in. So it's going well.
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Deadener Coming to the Jeep
It's right here : Jeep always peaks @ 50 Hz 3.5 cube ported box
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Deadener Coming to the Jeep
Not with this exact woofer and amp setup. Based on similar setups, though, it is not much different with the interior in.
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Deadener Coming to the Jeep
I had two more small rectangles of deadener left from my pack: * Before * After, see on either side of the piece that was sticking out farther GAIN - 151.5 dB 0.4 dB gain so far with a single bulk pack So... I need to concentrate on the back I think. This is where my woofer fires, right at the ceiling in the back.
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My SPL deadener Log
0.3 dB total gain now with ONE layer on the entire roof
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Deadener Coming to the Jeep
Finishing the roof -- one layer on entire roof. GAIN -- 151.4 dB Oh yah!
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My SPL deadener Log
Oh yah - I'll keep deadening as long as it keeps gaining I have finished off my bulk pack on the roof, though (still need to meter the last little bit... will do after lunch). I need to order more before I keep going.
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My SPL deadener Log
You can follow it on several forums : http://www.caraudio.com/forum/showthread.php?t=397628 http://www.soundsolutionsaudio.com/forum/i...showtopic=27043 http://www.stevemeadedesigns.com/board/ind...showtopic=42380 http://www.caraudioclassifieds.org/forum/s...524&page=12 (Starts on page 12 here on CACO) So far I am up 0.2 dB without finishing the roof
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Deadener Coming to the Jeep
Half way into the front panel: NO CHANGE - 151.3 dB ---------- I am hoping for 0.1 more finishing the front panel. I am just about done with a bulk pack though *laughs* So I need to order more before doing much more.
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Deadener Coming to the Jeep
First bit of deadening: GAIN : 151.2 dB ---------- A little more: NO CHANGE ---------- Covered Center Panel: GAIN : 151.3 dB
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Deadener Coming to the Jeep
Just for reference... Started at 151.1 dB and I am at 151.3 dB now with the Single NS 15" D1 and the Single SAZ-3000D @ 1/2 ohm.