What is the accuracy? +- how many DB at a reference level of about 100 DB?
1445033
We did not compare it to an other sound meter. We measured the noise from a dehumidifier rated at 55 db, as we thought it was much louder than that, and indeed found it to be 81db.Repeat measurements were always at the same level, which allowed exchange to a more silent machine.Did not test at louder levels.
1027514
The bandwidth is 300Hz to 8Hz and the Measurement Range is 40 to 130db. Hope that answers your question.
526610
At a distance of four feet.Low. 54DBMedium. 58DBHigh. 61DBTaken with my $100.00 Radio Shack meter which I believe is accurate but is not calibrated.
112027
You want to look at dB SPL output...I saw a spec sheet saying that these produce 108 dB SPL compared to the next model up which produces 115 which would be dangerous as 112 dB SPL is the level at which permanent hearing damage occurs. 108 dB SPL (sound pressure level, or how we hear volume) should be enough as it is 5 times the SPL of ambient room noise. (every increase of 6 dB doubles the intensity) Electronic specs really have to do with matching the amplifier to the speaker (in this case the small ones in the headphones) hope this helps some. btw I am not Kevin I'm using his login now.
1158950
frequency response 46Hz-20kHz +/-3dB power handling 75W continuous / 300W peak recommended amplifier power 130W sensitivity 92dB @ 2.83V / 1m
1874078
Pretty sure it's 190.Trick is to understand at what load.Whatever, this thing has oomph to spare. I'm driving inefficient speakers and they seem to do just fine. I've never really opened the thing up much more than 1/4 of the way.The other, really good thing, is the Class D power. Runs a hell of a lot cooler than any previous system I've used.Sam
806045
I cannot verify accuracy but the capacitance ranges include nF scale with a minimal value increment of 10pF.
1023777
do you mean db?if so you may want to use the 0 db setting because the 3+db setting may be too over tinty(but if you use a good sub you may want the 3+db setting for a little more highs) remember this every 3db doubles your power(it could be too much highs for your system).but test and see what your thoughts are(try both).
610103
Quite the range of values. Is there anyone with an actual measurement rather than from printed specs?
2097969
Tested in my garage using dB meter set on "C" scale (32-10,000Hz) - 87dB at 1 foot away and 78dB at 4 feet away - this is very quiet.
746086
The meter has two range settings: Low which measures 30 to 100 dB and High which measures from 60 to 130 dB
475791
I believe there 85-90. I use them in an industrial factory where its already load so, I find it nice to block out there sounds, and control my sound level of music to beable to hear and work efficiently and safe like at the same time:)
620790
It depends on the source level. Some movies I watch at -15dB while others i watch at 0db. I have even watched one at +5db since the original source was so low.
1763587
I don't know the actual db. rating but I would say "not bad, wear hearing protection indoors" I have found the sound less and lower pitched on softwoods, higher pitched with hardwoods. About the same level sound as a router while cutting.
764966
Average of 32 db across the band. Some freq. have higher or lower db reduction.
195377
I checked the box and I was unable to find RMS. I assume Pyle would rather not disclose this. It's 100 per channel peak but I'd put it at 20-40 for rms
1892917
You raise a good question since Bose does not publish frequency response charts (probably because the results are not as smooth or wide ranging as they would like). I expected some independent tests to be published but could not locate one for the 301s. I did find a French test on the Companion 2s, which are about the cheapest and smallest stereo speakers that Bose makes. That range was 40-20,000 +-6db. I would expect the 301s to be about the same range w/ slightly lower base +- about 3db but have no way to confirm or verify any numbers. As you probably know, the DB variance is a key factor in determining valid frequency response and any number without that variance can be misleading. You raise a good question since Bose does not publish frequency response charts (probably because the results are not as smooth or wide ranging as they would like). I expected some independent tests to be published but could not locate one for the 301s. I did find a French test on the Companion 2s, which are about the cheapest and smallest stereo speakers that Bose makes. That range was 40-20,000 +-6db. I would expect the 301s to be about the same range w/ slightly lower base +- about 3db but have no way to confirm or verify any numbers. As you probably know, the DB variance is a key factor... » Read More You raise a good question since Bose does not publish frequency response charts (probably because the results are not as smooth or wide ranging as they would like). I expected some independent tests to be published but could not locate one for the 301s. I did find a French test on the Companion 2s, which are about the cheapest and smallest stereo speakers that Bose makes. That range was 40-20,000 +-6db. I would expect the 301s to be about the same range w/ slightly lower base +- about 3db but have no way to confirm or verify any numbers. As you probably know, the DB variance is a key factor in determining valid frequency response and any number without that variance can be misleading. « Show Less