Wylie_Tunes

Curious to see the before and after CO readings

I did not make it to IBEX lat oct or CES this jan, so I have not gotten a demo. But if the KMTC11 had been available, pretty good bet I would have used them in this upgrade. 

Kicker now has a 9" and 11" HLCD. The KMTC9 and KMTC11 https://www.kicker.com/kmtc-horn-loaded-tower-systems

Swivel clamps, RGB LEDs, white or black pods.

Others that make an 8" HLCD; Bazooka (way before exile got into marine audio), Rockford Fosgate, Powerbass, Memphis Audio, Roswell Wake Air, Skylon Vector, MB Quart, Could almost include the Bullet Hollowpoint 7.7. 

22 minutes ago, Motoboarder42 said:

those Rev 10's aren't cheap, and I'm sure my Arc Audio KS 300.2 probably won't push them.

Whats interesting is, the Rev-10 is only about $175 more then the 8" Rev-8. Not a huge difference once you are up in that price range. 

The 300.2 is a solid amo and although it will not push them to their full potential, you will still gain the benefits of the size upgrade. Go with the speakers first, then upgrade amp next phase. 

One thing I really like about those KS300.2 amps and the retired Syn-2, is they will run Summed-mono. I really like this for a surf setup. Both speakers play 100% of the music, unlike stereo. close in and off-axis surfing, you miss a little bit when running stereo

The 300.2 is awesome power for the revo-6. Tuned about 100HZ and summed mono should be darn good for a 6.5" coaxial. 

Brand names aside, size matters with speakers. Just like with engines, theres no replacement for displacement, there is no more efficient way to get more output, then with more speaker surface area. This can be from more speaker or larger speakers. However, no number of speakers will ever play deeper then a single larger speakers. So going from an 8" to a 10", we gained more then 40% more surface area as well as much deeper mid-bass depth. 

In the case of a 6.5" compared to a 10", the 10" is more then 2X the surface area. A single pair of 10" is more surface are then four 6.5" speakers. 

The next layer to this, is the difference between a traditional dome tweeter we find in most all coaxial and the larger, more powerful compression driver in the a 10" HLCD. The larger and higher power handling compression driver delivers way more output then a dome tweeter. In smaller HLCDs, especially 6.5" HLCDs, this usually equates to comments like "harsh" or "bright" But with the 10" driver, we get so much more mid-bass output, it offsets or balances with the strong compression driver.

Hope this helps. 

Having the part and wrap warm really helps. Set in the sun or in a warm room. Large pieces like that are easier with 2 people. One to hold and peel while the other smooths out. A plastic bondo spreader work great for laying down and pushing out any bobbles. . 

4 hours ago, cowwboy said:

I like the idea. Keeps the airflow no matter what the wives/girlfriends stuff in there. 

If i took the wife and girlfriend out, id be me getting stuffed in the locker 

6 hours ago, cowwboy said:

Also remember this is not even a 1" threaded fitting but a 1 1/8 ID. 

Actually, the ID at the quick connect opening of the flow rite is .92. Thats not even the narrowest portion of that fitting. Inside of the flange, the fittings narrows down to .835". 

The 1" threaded fitting that the wake maker, ronix  and straightline sacs use, has an ID of .965". 

Maybe this off season, i need to do some more pump testing. Put an amp clamp on the pump leads and measure current while filling into the bottom of a sac and see if it changes as the sac gets full. Also compare a short and long hose. I can also time the fill rate into the top of a sac, then time again into the bottom and see what kind of difference head makes in the real world.   

14 minutes ago, Rugger said:

1 1/8" vs 3/4" is substantial in hydraulics

While thats true, those are the nominal ODs of the fittings, not the true IDs. Back when I did my testing, the threaded sac size was the 3/4 thread opening by fly high. We did not yet have a 1" threaded opening we see on the strightline and WM sacs. The ID difference between the fly high 3/4 (.525 ID and 1" (.735 ID) was noticeable, but not huge. No real difference between 3/4 and 1" hose though. The difference came from the fitting upgrade, not the note. Yes, I made 3/4 hose fit over the 1-1/8 fitting for the test. 

I would presume that the 1" threaded fitting or the flow-rite thru-hull would show a little increase over the .735" ID fly high fitting, but not enough for me to cut a hole in the sac. 

Again this is all based on aerator pumps. Positive displacement impeller pumps dont really benefit from this. They are not effected by head pressure near to the degree as aerators. Once the flow hits the narrow sac fitting, the speed of the water increases and the GPH in to the sac stays about the same. 

I also like to use a PVC/Rubber cement when bonding in these added fittings. Use some on both the flange and the jam nut on the outside. I also like to use the straight thru-hull with a 90* quick-con on the hose. This allows the hose to move without pushing on the glued in fitting. 

3 hours ago, Rugger said:

Should be a big improvement with less friction loss / restriction on the new port!  

Its a little gain in flow rate between the 3/4 fitting an 1" in a standard 3/4 threaded fitting, but not huge. Maybe like 12 seconds difference on a 400 lbs sac. Just note, this is with an aerator pump. Impeller pump will not be any different. Smaller fitting just increases the velocity, but flow rate remains the same. I would not add a fitting just in an attempt to gain a little flow rate. Rather for the need for an additional fitting or one in a different spot.  

The DX2.3 is not just a souped up DX2, but a completely different amp, Its the chassis of the DX6, so about a 1/3 larger and heavier then the DX2. The Syn-DX2.3HP deliver 600W rms x 2 @ 2 ohm. IMO, its a perfect amp for a bridged XXX12 woofer. 

Its a Johnson Pump/SPX wash down deck fitting