Danger Den CPX-PRO Pump previewed..

[Martinm210]

I love this testing stuff, especially when I get a chance to check out something that hasn't even completely hit the shelves yet.

Special thanks to Jeremy from Danger Den for providing me with a sample to test, I gave it the full meal deal of testing including the regular Total Head vs Flow rate curve, Power Consumption (Which is something it really shines in), Efficiency, and Sound Level (Also a very strong point)

What is it you might ask?

It's the DD CPX-1's BIGGER...and STRONGER Brother!..

Here is my full review:
http://www.martinsliquidlab.com/Dang...mp-Review.html

And a couple of samples:
Laing DDC 3.2 on the left, and the DD CPX-PRO on the right


Interior reveals a spiral shaped volute...woohoo! And a Ceramic Shaft..nice!


And a side by side power comparison with the stock DDC 3.2:


And here is my youtube video sound check:
http://www.youtube.com/watch?v=cNDcHojyr0w

Cheers!
Martin

[nikhsub1]

As much as I want to like that pump, the impeller looks cheaper than a $2 ho.

[Martinm210]

As much as I want to like that pump, the impeller looks cheaper than a $2 ho.

That's probably why it has more of a linear performance curve. But the more important part is the wearing surfaces. The actual shaft is ceramic like the RD-30 is, so while it doesn't look very fancy, I think durability should be there.

The RD-30 by contrast has a nice pressure oriented impeller, then they use a lesser efficient circular volute. I was happy to see the volute shape, and it shows in how it's doing so well in the low power consumption department.

The pump won't outperform a DDC 3.2 with a good top on it, but it's also about half the price that setup would run you.

[003]

I don't know how to interpret your graphs because I have no frame of reference as to what is good and what is bad... Very nice review though. Would you say this pump is better than the MCP655?

[Martinm210]

I don't know how to interpret your graphs because I have no frame of reference as to what is good and what is bad... Very nice review though. Would you say this pump is better than the MCP655?

Sorry, I should have included this one too:


Keep in mind this is a "STOCK" DDC 3.2, adding a top will give the DDC the edge.

Overall it will be similar in performance but the D5 and DDC with tops with have a slight edge in power, but the big bonus here is the lower heat dump and sound.

After I get my D5 retested, I'll be able to nail that down better..

It's a good third option I think. While the CPX-1 was really suited to really low restriciton loops or single block loops, this pump has over 3X that amount of power and pretty close to a stock DDC 3.2. It'll probably appeal to those looking for a silent pump with good overall power and lower cost.

[smee]

As always, Nice review Martin!!

Question, in the last graph (right above this post), does the MC-TDX had a nozzel in it? or is it just a stock MC-TDX?

How well do you think this pump would do with an MCR320, Fuzion w/Quad Nozzel and an MCW30 NB block?

My system spec's in sig.

[Petra]

Danny is certainly not going to be happy that Danger Den beat him to the punch... he has been telling me about this thing for quite a while now.

Anyway, the performance curve looks promising... If the noise level during operation is anywhere near the dB-1/CPX-1, then I'd think that we have a real winner here

[Tw1st3d]

That pump is awesome!

Very nice review!

When get your D5 tested..

Could you make a graph where you compere flow estimation between a setup like this. DDC w/o top, D5 and CPX-RPO and then maybe a performance vs price compare something

Hope you get it

[WhiteFireDragon]

so this thing is pretty much equivalent to a ddc with a top except more quiet?

[Martinm210]

As always, Nice review Martin!!

Question, in the last graph (right above this post), does the MC-TDX had a nozzel in it? or is it just a stock MC-TDX?

How well do you think this pump would do with an MCR320, Fuzion w/Quad Nozzel and an MCW30 NB block?

My system spec's in sig.

That's the MC-TDX, it does not have a nozzle, although I keep hoping they may come out with a kit for them. It's a low restriction block, pretty similar, just a touch lower pressure drop than a Fuzion without washer/without nozzle.

simple things works best, no balancing impellers like DDC rotors

as always Martin you did it again love the gate valve on work bench

Thanks to you for the sound level meter..

Danny is certainly not going to be happy that Danger Den beat him to the punch... he has been telling me about this thing for quite a while now.

Anyway, the performance curve looks promising... If the noise level during operation is anywhere near the dB-1/CPX-1, then I'd think that we have a real winner here

Not sure when these will make it retail, but they are coming. The sound level is pretty good I think. I've never tested the CPX-1, missed my chance when Naekuh let me borrow his and I ran out of time. I only measure 3-4 db over my 47db ambient and that was only about 6" away, so pretty quiet overall.

That pump is awesome!

Very nice review!

When get your D5 tested..

Could you make a graph where you compere flow estimation between a setup like this. DDC w/o top, D5 and CPX-RPO and then maybe a performance vs price compare something

Hope you get it

Sure, but I need to finish my DDC 3.1 testing first.

so this thing is pretty much equivalent to a ddc with a top except more quiet?

Not quite, it similar to a DDC 3.2 without top. Once you put a top on a DDC 3.2, the DDC 3.2 with top is going to be more powerful. But the D5 and DDC 3.2 with top are really more powerfull than you need on alot of systems, I've heard a few occasions where folks get better performance with a D5 on lower settings. This isn't normal, but it happens when the higher pump heat dump at higher settings causes more harm than the added flow rate thermal improvements. Heat dump is the tricky factor and plays a huge role in pump selection. This one's similar to a stock DDC 3.2, which would be more powerful than a DDC 3.1 and it has high efficiency.

[septim]

looks like an aquarium pump modified for using barbs... there are similar DIY Aquarium to Liquid Cooling pumps in use here in the Philippines...

[Xilikon]

Looking good for a simple loop setup that most "normal" people run For those who cater to the extremes like us, it may be useful for a 2nd or 3rd loop and I would like to get one for my 2nd loop. Space is a negative point in that case since I have very little clearance that only a DDC 3.2 with stock top is able to squeeze.

[Lurid]

What about two of them? Since its cheaper I honestly think you should also test 2 of them vs a DDC, DDC Topped, and a D5. I mean two of the CPX's is like $5 more than a Vario D5, and slightly cheaper than a single topped DDC, so its a viable comparison imho.

[begrip]

when is it coming out?

[situman]

I wonder how reliable these things are.

[Martinm210]

How well do you think this pump would do with an MCR320, Fuzion w/Quad Nozzel and an MCW30 NB block?

My system spec's in sig.

I'm sure it would do fine, that extreme system above under 1 GPM is about as restrictive as any system could be. The Fuzion with the 3.6mm nozzle is the most restrictive CPU block I've tested, and the Fuzion GFX is the most restrictive GPU block...doesn't get much more restrictive than that and it still manages ok flow rates. Most normal systems would see plenty of flow rate.

What about two of them? Since its cheaper I honestly think you should also test 2 of them vs a DDC, DDC Topped, and a D5. I mean two of the CPX's is like $5 more than a Vario D5, and slightly cheaper than a single topped DDC, so its a viable comparison imho.

You could, but I wouldn't do it unless you really needed the pumping power. I'll have this pump in the next flow rate estimator so you can experiment with up to three in series to see what it does.

when is it coming out?

I don't know, they are still doing some testing, so I have no idea. This is more of a prototype, so there could be some revisions before they are rolling production.

I wonder how reliable these things are.

It'll be one of those, only time will tell, but the CPX-1 seems to have good reliability. This one does have a heafty motor weight and a ceramic shaft. No long term experience, but the construction materials used in the wearing parts is similar to other pumps that do well for long term use.

[nikhsub1]

Man those propeller style impellers just make me cringe though... it one cracks, or if it gets off balance... I much prefer the iwaki/ddc style impeller for some reason.

[NaeKuh]

Man those propeller style impellers just make me cringe though... it one cracks, or if it gets off balance... I much prefer the iwaki/ddc style impeller for some reason.

+1

ive had my share with those impellers in the fish hobby world.

There not the most reliable of things, however on some of the pumps ive had, they lasted a good many years under 24/7. :T

But scott, im willing to bet the impeller on this thing would outlast per say, the average DDC-2.

[Martinm210]

What I've been reading on pump design is the type of impeller is specifically chosen for the type of fluid. More open and simple impeller like this perform better and more reliably in conditions where you might have solids from a pond or algae in an aquarium where a very dense type of impeller would have trouble plugging.

Just like radiators, we're getting the technology from a hand me down industry that wasn't water cooling computers.. I don't think any of our pumps we use today were only designed for water cooling PC's.

[NaeKuh]

What I've been reading on pump design is the type of impeller is specifically chosen for the type of fluid. More open and simple impeller like this perform better and more reliably in conditions where you might have solids from a pond or algae in an aquarium where a very dense type of impeller would have trouble plugging.

Just like radiators, we're getting the technology from a hand me down industry that wasn't water cooling computers.. I don't think any of our pumps we use today were only designed for water cooling PC's.

no but even fish hobby pumps were offsprings of big industrial pumps who are from the makers of liang and iwaki.

uhh.. hope that makes sense martin.

[Martinm210]

no but even fish hobby pumps were offsprings of big industrial pumps who are from the makers of liang and iwaki.

uhh.. hope that makes sense martin.

Yeah, the Iwaki probably has the most pressure oriented impeller design I've seen.

[iandh]

I am liking this pump, although the size is a bit off-putting compared to the DDC w/top. Of course considering most DDC's with tops cost $100+, I may be interested in this for future builds. I am all about savin' money. The silence part as well.

[systemviper]

I tried to find a comparison but only saw the D-Tek mentioned once.
BUT

It looks so much like the D-Tek dB-1,
I have had those pumps and loved them,
they were very quiet and great for single loop setup's.
And seemed to have good head pressure.

So how do they compare,to the Danger Den CPX-PRO
then look the same, cost the same....
hows the performance,


My favorite is the
Laing DDC-3.2 with the XSPC - Acrylic Reservoir ,
it's just a great all around set-up.

[Xilikon]

NaeKuh, respect the DDC maker and spell Laing right

[NaeKuh]

NaeKuh, respect the DDC maker and spell Laing right

LAING

happy?