coral box qp-16
- Thread starter salty joe
- Start date
SumptyDumpty
Member
-electric whine sound, yes.
Here is my take.
I have the CoralBox QP-5 series, one Tunze Turbelle Nanostream 6040, and one Aqua Medic EcoDrift 4.1 Controllable Pump/Powerhead.
The fish room is almost silent, so I can hear all the noises and where they come from.
Kessil A80 (small, no fan model) keeps the noise down too as for lighting.
1.
The Coral box QP-5 is pretty neat as for price and options, but the high pitch electric ballast-like whine is present as stated from the previous reply.
It may be drowned out in a room that has more noises from equipment.
2.
The Aqua Medic 4.1 was the one that is the most quiet in my case of the silent tank room.
I can't hear a thing on the current alternating high/low pattern.
Only an ear near to or against the tank will allow me to hear it.
I'm not sure on the track record of the service of the parts for cleaning yet.
3.
Tunze 6040 is pretty nice, has a nice really track record, but has a low bass hum.
I use it one the High/low flow alternating method.
It sounds like silence, then comes the faint low hummm, silence low humm.
If you use it in the noisiest of the tanks in the room, the low bass humm may blend in.
Remember, this is all from a dead silent room.
If I had only one to choose, it would be the Aqua Medic 4.1 for the sound of nothing but my own presence...., but the reliable Tunze 6040 may be the smart choice for supposed longevity and just suck it up with the low bass hum.
The Coral box QP may get quiet over time mechanically, but the electric whine seems to be an electrical thing in my opinion.
I could get used to it, but as I hit the feed mode, the sound goes away immediately, so I know it does have sound if ears are well enough to still hear high pitch noises.
Older folks lose that high pitch aspect, so it may not be an issue to some individuals here.
SumptyDumpty
Member
Type this phrase listed in bold on youtube's search bar.
You will hear the high pitch described by me and the other member in the previous posts.
Some older folks like my father can't really hear that tone anymore, but i sure can.
Youtube search bar.
Coralbox QP-5 pump ( mechanical and electric pitches).
You will hear the high pitch described by me and the other member in the previous posts.
Some older folks like my father can't really hear that tone anymore, but i sure can.
Youtube search bar.
Coralbox QP-5 pump ( mechanical and electric pitches).
Zacktosterone
Active member
listen when i say this.... I've tried like every single pump out there.... i even had a sicce pump for my return and they're supposed to be quiet (not to me).... these pumps are SOOOO quiet it's ridiculous. and all of my equipment is quiet (besides my reef octopus skimmer haha) i have to look to see if they're on. and when people say (i have to check to see if they're on) they usually have really loud equipment.... my fluval sp4 pumps are also really quiet. ther's no wuuuring sound with these pumps...i have 4 qp-16 pumps
as for reliability, i have no idea, i haven't had them long
Reef_Breeders
Sponsor
Hey, just to give our perspective: this is the first time we have heard of the issue out of hundreds of units sold- and this particular customer bought 2 pumps. They did not test the second one upon request, nor were they willing to troubleshoot the first pump with the issue. While I understand it is frustrating to receive a defective unit, we always try our best to work out any issues and that requires some cooperation with our valued customers. When this one comes back to us we will do some testing. It is most likely a fluke but if it is a more widespread issue with the 5s we will sort it out asap. Thank you for bringing this to our attention!
Also- in the video the camera is right up against the glass! Of course you will hear something when you put your ear to the tank- it's a spinning impeller after all. Back up a few feet and the noise should be gone. The whining I have not heard of before- again that will be investigated once we get the chance to test their unit out. I just plugged one in here at our warehouse and did not have any such noise.
Last edited:
Reef_Breeders
Sponsor
My CoralBox QP-16, as stated before in this thread, has a whine that is audible. My tank is in my home office where I work 95% of the time:
I purchased it from ReefBreeders and didn't email them because I figured it was normal noise. I'll try to get a video of the noise from where I sit. When concentrating on work I don't hear it because I tune it out but it is there. For a normal tank in a room I doubt most people would notice it.
I've owned a lot of powerheads (Vortech QuietDrive, Maxspect Gyre, Jebao Gyre) and all were nosier than the CoralBox. The only 100% silent pump I've owned was the Jebao RW-15 and 8 but they haven't last long. My RW-15 was replaced by the CoralBox. I still have one RW-8 running and it is dead silent. My other RW-8 failed. They last just over a year for me. My Coralbox was purchased in April of this year and it is still going strong.
Please do! If I can isolate it then we can work with the manufacturer to make these quieter. It may be a bearing or something as simple as that.
And I wish my office was like that! Maybe next year when we move to a bigger warehouse.
SumptyDumpty
Member
Hello,
This is not intended to bash Reefbreeders, I only wanted to display the noise coming from the new pump.
This weekend, I did unbox the 2nd QP-5 pump on camera, as well as compare it to the 1st QP-5.
Your customer service is great. I am very satisfied with the controller, but the noise displayed on both pumps was present.
Sorry for not opening both pumps in the beginning.
I did not want to make a project out of it. I guessed both were going to have the same result.
Both pumps were purchased at a great sale price for the Black Friday week. I appreciate the discount.
The camera will only pick up what it can as for pitch or high frequency signatures. The human ear in a quiet reading room will hear the pithces quite well in person.
The noise sounds similar to an electronic ballast noise.
I hope the videos I made for you can help Reefbreeders in the future to isolate the high frequency signature that was displayed.
I have created a short version of the QP-5 series test with both pumps.
I also can upload the longer original version of the unboxing of the 2nd QP-5 pump, as well as the test of the two in full length.
The long version is quite boring, but does portray a great amount of information for the ears.
Video search on youtube:
short version - CoralBox QP-5 test of two (2) pumps. Results start 00:38 sec. in.
https://www.youtube.com/watch?v=ECepoITaWW0&feature=youtu.be
JZinCO
New member
Hi. Let me say, what I'm about to say is not a bash on Reefbreeders or CoralBox.
--
I just bought a QP-16 and set it up. In some regard, I like that it is a strong pump. In my 125 gallon, I initially turned it on the lowest flow setting. It kicked up so much sand and random detritus that I was able to visually see the gyre it was creating.
That said it was too much! For reference, the product description states the gph ranges from 400- 4000 gph.
The lowest setting was waayy too much. Everything was sideways in my tank. I think the programming in the unit I got was defective. The flow rate was adjustable, it's just that the floor is too high for myself. Just for comparison, I currently run ~2500gph in my 125 gallon so I have a good measure to compare too. Side note: I barely notice my RW-4 push water at 100%.
--
I just bought a QP-16 and set it up. In some regard, I like that it is a strong pump. In my 125 gallon, I initially turned it on the lowest flow setting. It kicked up so much sand and random detritus that I was able to visually see the gyre it was creating.
That said it was too much! For reference, the product description states the gph ranges from 400- 4000 gph.
The lowest setting was waayy too much. Everything was sideways in my tank. I think the programming in the unit I got was defective. The flow rate was adjustable, it's just that the floor is too high for myself. Just for comparison, I currently run ~2500gph in my 125 gallon so I have a good measure to compare too. Side note: I barely notice my RW-4 push water at 100%.
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