what is the dB level of the different filters?
1078376
Hz 125 250 500 1000 2000 4000 8000Gold Filter (High Protection) dB 18.8 15.6 16.0 18.5 27.7 23.9 22.0Silver Filter (Medium Protection) dB 14.8 15.0 15.7 18.7 26.6 24.4 18.9
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www.alpinehearingprotection.com/earplugs/musicsafe-classicThis page has al the specs. Hope this helps. :)
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Dear flutegirl,I had a bad experience with the Alpines, The metal piece came off in my right ear, and I had to go to an ear-nose-throat specialist to have it removed. Look at the customer comments. Me and another person had this happen to them.After that experience I bought an Etymotic Research ER20 pair, which was recommended by a musician acquaintance. I didn't think amazon would have it, but just to make sure, I typed that name into amazon's search engine, and they carry it!
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I can give you the attenuation scores for the Etymotic Research ER20 ear plugs.Frequency Mean attenuation in dB standard deviation in dB125 13.2 2.5250 15.3 2.3500 16.7 2.21000 18.3 3.12000 20.8 2.84000 18.3 2.08000 21.6 2.9The overall attenuation is 12 dB I can give you the attenuation scores for the Etymotic Research ER20 ear plugs.Frequency Mean attenuation in dB standard deviation in dB125 13.2 2.5250 15.3 2.3500 16.7 2.21000 18.3 3.12000 20.8 2.84000 18.3 2.08000 21.6 2.9The overall attenuation is 12 dB
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Silver- 14.8 to 18.9 depending on decibelsGold- 18.8 to 22.0 '''''''''''''''''''''''''''''''''''''''''''
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Silver- 14.8 to 18.9 depending on decibels Gold- 18.8 to 22.0 '''''''''''''''''''''''''''''''''''''''''''
531176
I think you need pl-5509. You can check to make sure here. http://www.knfilters.com/?gclid=COqvrIL107sCFaTm7Aod4R0AAw
1353183
You would have to ask the manufacturer of the filters for that info.....I'm just a consumer :)
1531697
Annie, have no idea about which is correct. Just know that these filters do fit. Wish I could be of more help, but am not a techie person !
470422
Adding to Klee's answer: there are 5 correction Filters:1/2 CTB (3200K to 4300K) [1/2 f/stop loss]Full CTO (6500K to 3200K) [1 f/stop loss]1/2 CTO (6500K to 3800K) [1/2 f/stop loss]1/4 CTO (6500K to 4600K) [1/2 f/stop loss]Plus Green (cc30 Green) [1/2 f/stop loss]Heavy Frost Diffusion [2 f/stop loss]
756625
I believe they are both 2.0; not sure; I returned the unit as it did not play flac or some of my movie files. The sellers were very helpful, and even sent me a second set, but same problems. My mp3 files played, but the first few seconds it was a static noise. A shame, because the unit looks great.
2143478
Sorry, I can't help. It was given as a gift and never checked the number of filters.
683999
As far as how loud it is in DB levels, I'm sorry I can't help you. Maybe Barnett can give you the info.
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.
2225484
Don't know the db level but I can say you can have a normal conversation when it's running. Really quiet for a compressor. I'm very happy with it
752657
Who knows? There are better filters out there. The one I got did not come with any paper work that details its campliblities. A monolithic filter or the ones that go in a Berky are good filters. They list exactly what they filter out.
1137034
don't have a dB level meter, but they are louder than the speaker on my Motorola Droid X cell phone. and quite clear. well worth $20-$30
16136
I believe the difference is the level of filtration. I use the ez4 b/c It filters out more and smaller contaminant particles
27921
Sorry, I wouldn't know, because my filters were defective and Amazon wouldn't send me replacement ones so I just threw them out and didn't get to use the system.
12009
I have 3 sets of ND filters and each set consists of a ND.8, .4 & .2..... therefore by combining filters you would achieve (.8+.2) 1.0 or (.8+.4) 1.2 or (.8+.4+.2) 1.4
764966
Average of 32 db across the band. Some freq. have higher or lower db reduction.
762318
I don't really know. What I can say is that the DBX eq is excellent. Setting the eq to +6db across the spectrum and then equalizing the volumes produced no audible difference in the sound between the the eq in and out of the circuit. The noise level is also inaudible. I highly recommend it and would buy it all over again knowing what i know now. Good luick on your purchase. HEHJr