Told you they'd be quiet.Ok I tested the jebao dc3000 and hygger 1060 pumps (i suspect they have the same oem). These were my findings of the four pumps I tested:
syncra silent 3.0 rated 48 watts measured 48 watts; rated 714 gph
syncra silent 4.0 rated 85 watts (measured 71 watts) 951 gph
dcp-3000 rated 25 watt (measured 30 watt) 845 gph
hygger-1060 rated 33 watt (measured 42 watt) 1060 gph
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I though the syncra silent 4.0 was 'silent' and it was relative to the 3.0; but the two dc pumps were like no noise at all - they made the silent 4.0 sound like a freight train relatively speaking.
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I had no way to measure actual flow so that is a flaw in my testing.
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The dcp-3000 was sold by amazon (not a reseller) but required a erupean to usa adapter (very annoying). I.e, it comes with a two prong plug not suitable for american sockets - but the power supply will accept ac current - it just needs an adapter not a converter.
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I was blown away at just how quiet the dc pumps were - i was expecting the a power savings.
Anyway if the a100 or a200 are massively discounted over black friday I think i'll get 6 a200 to meet my setups but i mean like massively discounted - like 80% off
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one big negative with the hygger/dcp is that neither have an off switch. When I push the 'stop' button it goes into feed mode which means it will auto start in 10 minutes. I couldn't find a way to actually turn it off short of unplugging.
Weird on the European adapter thing - all of mine have standard American plugs. I have had a ton of issues with Amazon lately though - wrong products, misdescribed stuff (measurements on tools being wrong) - just a pain.
If you don't feel like fighting with Amazon about it - 24vDC 2-3A power supplies/wall warts are cheap.