Does the GE Opal ice maker have a decibel rating?
No. GE prints no figure for the Opal 2.0 on the product pages, the support spec page or the owner's manual, and this is the machine most readers will arrive asking about.
What GE offers instead is a support page of normal sounds, listed by name: WHIR, BUZZ, RATTLE, GURGLE, HUM, CHUGGING, CLICK, SQUEAK. They typically cease within 10 to 45 minutes of the ice making cycle, the page adds.
As disclosure goes this is strangely candid, an admission that an ice maker is a small orchestra. It still gives a buyer nothing to put beside another machine. We rank published figures, so the Opal sits outside the table.
Our coffee grinder guide runs into the same wall, where the grinders most people shop first publish nothing we could rank.
Nugget machines run an auger, and makers rate them louder
Two mechanisms dominate this category, and they do not sound alike.
A bullet machine freezes water on cold metal fingers, then reverses the cycle so the bullets drop into a basket. Compressor and fan run. Then a pause, then a clatter.
A nugget machine freezes a film of ice inside a cylinder and drives an auger through it without stopping, scraping and pressing the ice out through a die. That keeps a motor and a gear train working the entire time, on top of the compressor. Every maker in this guide that prints figures for both types rates the nugget machine higher. Silonn claims 35 dB for a bullet and 47 for a nugget, while NewAir's support article gives under 50 for non nugget and 55 to 57 for nugget. Physics and published numbers point the same way.
The budget claims fail the smell test for exactly this reason. Costway publishes "Sound Level <=35dB" and AGLUCKY "only 36dB" for auger machines, below what most brands claim for machines with no auger at all, and neither says how the number was taken. Both are parked under also considered, each with a note on why.
How loud is a NewAir nugget ice maker?
46 dB on the product page. 55 to 57 dB, with peaks up to 65, in NewAir's support article.
The spec table for the 44 lb nugget machine prints "Decibel Rating: 46 dB". The support article on noise reads: "Nugget style icemaker noise range is 55db - 57db and can have a peak of up to 65db", and "Non Nugget icemaker <50db".
Same company, two numbers, and no attempt to reconcile them. We quote both on the pick and still made it the nugget choice, because nowhere else in the category does a maker concede that noise has a range and a peak rather than one flattering value.
A company that tells you the truth in the footnotes is ahead of one that never tells you at all.
Silonn gets somewhere similar by accident. Its SLIM32T page has "Noise 47 db" in the spec table and "about 50-55 dB from a distance of 1 meter" in the text. That metre is the only measuring distance published by any maker here, and 50 to 55 at a metre lands almost exactly on NewAir's support-article range.
Ice maker ratings skip distance, standard and phase
No maker in this category names a test standard. One names a distance. None says which phase of the cycle its figure describes, even though the cycle is the whole character of an ice maker's noise: compressor hum, auger grind, ice clatter, pause.
Our blender guide meets the same gap from the other side, where most commercial figures are taken with an empty jar.
Most figures here are ceilings or bare numbers inside marketing copy rather than spec rows. Lining up ice maker claims from different brands runs into the usual problems, so read them in order of trust. Mechanism first. Then the shape of the claim. The exact digits come last.