what is the db rating?
85406
if you use it with a speed controller as we do it can be very quiet if you run it full on it can be a bit noisy..... http://www.amazon.com/gp/product/B009KAEP7A/ref=oh_details_o08_s00_i00?ie=UTF8&psc=1
551034
Bought this unit because I needed a quiet portable AC unit as well and the specs said it was 55 db. I used a phone app to measure the db and it wasn't 55 db, it was closer to 70 db. I'm in a 15x15 room that I use as my home office and the unit was about 4 feet away and it was loud. After about 30 minutes I had a headache. I could maybe use the phone and like a previous poster said, I had to turn up the volume on my TV about 2-3 notches. Anyway, I wouldn't consider this unit "whisper" quiet, its not as loud as other air conditioning units but try having something thats putting out 70db constantly and it can get quite irritating after a while. Bought this unit because I needed a quiet portable AC unit as well and the specs said it was 55 db. I used a phone app to measure the db and it wasn't 55 db, it was closer to 70 db. I'm in a 15x15 room that I use as my home office and the unit was about 4 feet away and it was loud. After about 30 minutes I had a headache. I could maybe use the phone and like a previous poster said, I had to turn up the volume on my TV about 2-3 notches. Anyway, I wouldn't consider this unit "whisper" quiet, its not as loud as other air conditioning units but try having something thats putting out... » Read More Bought this unit because I needed a quiet portable AC unit as well and the specs said it was 55 db. I used a phone app to measure the db and it wasn't 55 db, it was closer to 70 db. I'm in a 15x15 room that I use as my home office and the unit was about 4 feet away and it was loud. After about 30 minutes I had a headache. I could maybe use the phone and like a previous poster said, I had to turn up the volume on my TV about 2-3 notches. Anyway, I wouldn't consider this unit "whisper" quiet, its not as loud as other air conditioning units but try having something thats putting out 70db constantly and it can get quite irritating after a while. « Show Less
1988894
I could not find that type rating on the info data. We bought it based on some our friends recommendations. We have found it to be satisfactory if one follows the instructions provided.
1424641
I don't know in dbs as I have no way of measuring. I have this on my car and it is loud when car is not running. When tuning I can't hear it. Hope that helps
1988893
I could not find that type rating on the info data. We bought it based on some our friends recommendations.We have found it to be satisfactory if one follows the instructions provided.
1587685
I don't know the maximum volume, I don't have a dB meter, but it gets plenty loud enough to listen to music at my desk, I plug it into my Android phone and listen to internet radio just fine. You're not going to be able to use it for a party or anything though.
210025
I don't know the official rating but according to my SmartTools app on my Samsung S3, the dB I read is 47 dB. The test was taken by placing my phone up against the tower in order to get the highest dB. Furthermore, no high performance programs were running at the time the test was taken.
2225485
79 dB on spec sheet. Quiet than most but don't expect a refrigerator like hum. It just is quieter for an air compressor.
1507977
I do not have any information on DB rating of the heater or any way to measure it. However, I can say that the level of sound from the heater is dependent upon the mode it is operating in. When operating at full output, the fan is operating at high speed and thus generates a level of sound consistent with any fan operated room heater which I would classify as moderately noisy. When operating at "idle" speed it is very quiet all of which is dependent upon the thermostat setting relative to room temperature. If you desire a very quiet heater, then I would suggest a radiant type heater that does not have a fan. I do not have any information on DB rating of the heater or any way to measure it. However, I can say that the level of sound from the heater is dependent upon the mode it is operating in. When operating at full output, the fan is operating at high speed and thus generates a level of sound consistent with any fan operated room heater which I would classify as moderately noisy. When operating at "idle" speed it is very quiet all of which is dependent upon the thermostat setting relative to room temperature. If you desire a very quiet heater, then I would suggest a radiant type... » Read More I do not have any information on DB rating of the heater or any way to measure it. However, I can say that the level of sound from the heater is dependent upon the mode it is operating in. When operating at full output, the fan is operating at high speed and thus generates a level of sound consistent with any fan operated room heater which I would classify as moderately noisy. When operating at "idle" speed it is very quiet all of which is dependent upon the thermostat setting relative to room temperature. If you desire a very quiet heater, then I would suggest a radiant type heater that does not have a fan. « Show Less
1045169
First of all dB is a measure of relative sound - for example you could say that one fan is 70dB louder than the other. It is not a measurement of actual sound level. And 19 sones is about the sound a chainsaw makes. On the other hand dBA is a measurement of sound as perceived by the human ear and thus is a measurement of sound above the threshold of the ear sensitivity. And 70dBA is equal to 8 Sones - relatively noisy. The Broan bathroom fan is 6 Sones and the Panasonic is 1.5 Sones.
217967
This is a measure of digital sound levels that charts are available for, different dba numbers will indicate what dba sounds levels are acceptable in different areas.The living room. the bedroom etc.
402049
User Guide states: -Nominal output level 0dBFS = 16dBu, balanced. That means for 'best' AD performance, recording levels should be around -12dBFS (that is +4dBu / 0VU). Here is more specific information about levels: http://www.independentrecording.net/irn/resources/metergain/index.htm
139997
Im not sure what its rated but at 185 it was good for about a month and then the base split like crazy and the shaft went completely through it. DO NOT BUY IT!!!!
1074044
Dont have a dBa rating, but it is loud, similar to a running fan like 24 " in dia.
1478704
This inverter generator has a decibel(dB) rating of 56 at no load and 65 at full load. For comparison, a 70 decibel noise level equates to 70 normal street noise or an average radio and 60 decibels equates to a normal conversation close up. This generator's decibel level at full load would fall in between those two noise ratings.by ProductExpert11May 30, 2012it has a switch for economy. LOW IDLE for smaller loads.the idle atoumaticly increases when more power is called for. running on low idle. IT IS VERY QUITE-- BUT when running at full RPM you can hear it. its not silent-But the sound it produces is a much lower tone then that of a contractors generator This inverter generator has a decibel(dB) rating of 56 at no load and 65 at full load. For comparison, a 70 decibel noise level equates to 70 normal street noise or an average radio and 60 decibels equates to a normal conversation close up. This generator's decibel level at full load would fall in between those two noise ratings.by ProductExpert11May 30, 2012it has a switch for economy. LOW IDLE for smaller loads.the idle atoumaticly increases when more power is called for. running on low idle. IT IS VERY QUITE-- BUT when running at full RPM you can hear it. its not... » Read More This inverter generator has a decibel(dB) rating of 56 at no load and 65 at full load. For comparison, a 70 decibel noise level equates to 70 normal street noise or an average radio and 60 decibels equates to a normal conversation close up. This generator's decibel level at full load would fall in between those two noise ratings.by ProductExpert11May 30, 2012it has a switch for economy. LOW IDLE for smaller loads.the idle atoumaticly increases when more power is called for. running on low idle. IT IS VERY QUITE-- BUT when running at full RPM you can hear it. its not silent-But the sound it produces is a much lower tone then that of a contractors generator « Show Less
443658
I really have no idea of the DB level...I got it for medium venue gigs and as a monitor for my upright in noisy areas. It serves me well in that respect. If I need more power or think I will, I bring a 15" several hundred watt amp.
1970023
Abby,These ear plugs are listed as NRR 33 which is the dB number you're looking for (the listing should read NRR 33 dB). NRR is the Noise Reduction Rating - the decibel (dB) reduction provided by a particular device.Keep in mind that the surrounding dB noise is not reduced by the dB rating of the device. I don't know why it's done this way, but there is a formula to calculate the noise reduction provided by the device: (NRR - 7) / 2. So for these particular earplugs, (33-7) / 2 = 13. This means the surrounding dB noise is reduced by 13 decibels.Hope this helps! I find these ear plugs to be very comfortable. Abby,These ear plugs are listed as NRR 33 which is the dB number you're looking for (the listing should read NRR 33 dB). NRR is the Noise Reduction Rating - the decibel (dB) reduction provided by a particular device.Keep in mind that the surrounding dB noise is not reduced by the dB rating of the device. I don't know why it's done this way, but there is a formula to calculate the noise reduction provided by the device: (NRR - 7) / 2. So for these particular earplugs, (33-7) / 2 = 13. This means the surrounding dB noise is reduced by 13 decibels.Hope this... » Read More Abby,These ear plugs are listed as NRR 33 which is the dB number you're looking for (the listing should read NRR 33 dB). NRR is the Noise Reduction Rating - the decibel (dB) reduction provided by a particular device.Keep in mind that the surrounding dB noise is not reduced by the dB rating of the device. I don't know why it's done this way, but there is a formula to calculate the noise reduction provided by the device: (NRR - 7) / 2. So for these particular earplugs, (33-7) / 2 = 13. This means the surrounding dB noise is reduced by 13 decibels.Hope this helps! I find these ear plugs to be very comfortable. « Show Less