sundownz

They should out-perform either the LVL-4 or DD 2500... actually we did a swap in for a DD 2500 and gained over 1 dB in SPL and the Z sounded nicer

I've only sold a few of them -- so you may not get much feedback. They perform alot like the original except MUCH better sealed.

I don't really promote 18v "daily" setups as it is a bit silly but it has been done anywhere from 17.9v (what I ran) to 19.5v (DJ ran his 3000s here).

Cross brace finished for the baffle... just need to build the baffle itself now : Looks pretty strong to me

Framed the back wall into place on the front (also framed into place on the back as pictured before) -- starting to frame in to place the woofer baffle in : Back chamber is 5 ft^3 before the displacement of the 2x4" lumber + any other bracing I decide to add. Figure I'll end up with around 1 cube per driver as I plan to reverse mount the subs (no sub displacement).

TOP of the box is OFF... back wall slid back to where I want it. I have around 38 cubes to work with in this position. I can use the back wall... it is 6 layers of MDF with 2x4" lumber bracing, very sturdy.

The last side is cleaned off... starting on the inside of the box: Part of the floor had a bit of a hump from moisture -- side closest to camera -- had to grind that down so I can slide the baffle in.

There are like 10 boxes to the left Which one? They are just various boxes we have built up over time.

Top is 100% cleaned off... broke off a grinder disc on some of the concrete residue which shot off, hit my finger and leg (ouch), and then broke a fluorescent light *laughs* But... I got it done!

Have the one side and about 2/3 of the top sanded down smooth with a grinder after foam removal... got most of the foam off of the other side so I can grind it down soon too:

Concrete is OFF... working on the foam. I think I can re-use the shell and just layer it up with actual wood We are also working on a 4th order wall for 12 x 12s today... so we are busy!

Taking out the concrete is going to be difficult... has a metal mesh in it.

* Everything out of the back * Baffle Out !

Not 100% sure what I'm doing yet Once I get it out I am going to take a good look at it and consider my options. I have thought about some sort of band-pass but I may end up going back regular ported wall.

Got this truck through some horse trading... current setup was tested to do 154.3 dB @ 61 Hz with two Z15s and a clamped power of 5000 watts total. I want a more efficient setup so I am tearing it all down! Some pics of the current setup with the cap off and starting to tear down : Old wall has a great baffle - 7 layers thick - but the outside is too thin. It is one layer of MDF with super dense foam sandwiched between that and a thin layer of wood (I had that peeled off before the pics). It does have concrete above the front chamber, though, so that is not too bad. All in all I think it could be better so I am going to rip it out!

Correct -- both amps are actually exceeding their 2 ohm rated outputs substantially.

The power difference measured correlates very well with the parts count difference in the output section. I have all of the subs out of my Jeep or I'd try them both at 1/2 ohm.

Power Test Completed. I know someone will ask these questions SO READ THIS FIRST : 1) AQ-3500D Tested First - Battery Bank had a charge for several hours from our bench power supplies 2) SAZ-3500D Tested Second - Only a few minutes behind the AQ-3500D Test 3) THIS IS WHY the 3500D had much more voltage drop, I had the entire surface charge gone from the batteries 4) Both amps set wide open to be apples to apples. ----- AQ-3500D POWER TEST: http://www.sundownaudio.com/misc/_AMP_POWER/AQ3500D_SAZ-3500D/CIMG2679.MOV AQ-3500D VOLTAGE TEST: http://www.sundownaudio.com/misc/_AMP_POWER/AQ3500D_SAZ-3500D/CIMG2681.MOV POWER : 2400 Watts AMP VOLTAGE (measured) : 71 V AMP CURRENT (calculated) : 33.8 A ACTUAL IMPEDANCE (calculated) : 2.1 ohms SUPPLY VOLTAGE : 14.22 V ----- SAZ-3500D POWER TEST: http://www.sundownaudio.com/misc/_AMP_POWER/AQ3500D_SAZ-3500D/CIMG2682.MOV SAZ-3500D VOLTAGE TEST: http://www.sundownaudio.com/misc/_AMP_POWER/AQ3500D_SAZ-3500D/CIMG2684.MOV POWER : 3020 Watts AMP VOLTAGE (measured) : 77.2 V AMP CURRENT (calculated) : 39.11 A ACTUAL IMPEDANCE (calculated) : 1.97 ohms SUPPLY VOLTAGE : 11.99 V

Please e-mail me for shipping quotes... it is clogging the thread.

Before anyone starts a fight... I am just offering a comparison of parts counts, sizes, etc. I am not saying anything bad about the AQ product.

Have had a few people ask for a comparison and I happened to get one in for trade -- so here it is. Not sure if this is factory or from the repair but the AQ also uses Fairchild output parts vs. IRF parts: * SAZ-3500D is a bit longer and wider * SAZ-3500D has 20 caps in PS section vs. 16 in the AQ * Another view of the power supplies in comparison * Output sections : Output inductors are equal, SAZ-3500D uses 16 outputs vs. 12 in the AQ * SAZ-3500D Transformers compared to a dollar bill * AQ-3500D Transformers compared to a dollar bill

Please e-mail me : [email protected]

13.00 each

I don't have the prototype yet and it takes 2-3 months once I approve the prototype and start production. So yes, a few months out.

17.50 each