2004年12月19日 · Every 3 db is double the volume, so the difference between 80 and 90 is the difference between a fairly quiet room and a rock concert. Perhaps if your room is aboard a subway train 0db is barely audible. 130db is treshold of pain.

2007年10月3日 · 90 dB is loud, but it's not that loud. It's well below the threshold of pain, although long term exposure (i.e., more than a few hours) will cause lasting hearing damage, I doubt being exposed to 90 dB noise levels is going to cause most people headaches or ringing ears. If it happens to you, then I'd hazard a guess that you're more sensitive ...

2014年9月29日 · Assuming a sensitivity of about 90 dB/W, it translates to a few dB of A-weighted noise SPL, and that can be masked by typical ambient noise levels. Click to expand... If that is the case with the quoted numbers on the amp in Absolute Sound, and the specs are based on voltage swings, then the SNR or max power output spec is flawed to begin with ...

2011年1月16日 · Active noise canceling phones are not as good as them in terms db reducing. They provides comparable results on airplane, but not as good in other circumstances. Sources/amp: Sony XA5400ES, Oppo BDP-93, Grace Design m903 m902, Calyx Coffee, Grado RA-1

2013年4月17日 · RMAA also consistently reports the crosstalk to be better than it really is by 6 dB, so -57 dB crosstalk in RMAA is in fact -51 dB. Grounding is a common problem as well, due to the lack of differential inputs on sound cards, so the loopback tests often create ground loops. But it is also possible that a common ground wire had too high ...

2025年2月10日 · SPL – 108 db @ 1kHz; Total Harmonic Distortion – <0.2% @ 1 kHz, 90 dB; Weight – 237g (without cable) Cable – 1.8m (~6ft) detachable with 3.5mm (⅛-inch) stereo plug; includes 6.3mm (¼-inch) adapter; single-sided entry--- --- ---A note about naming: Like many audio brands, we use an alphanumeric system for many of our products.

2025年2月16日 · Today auditioned the L Amp at a dealer, its very disappointed. Given its price tag which is substantial lower than my SP3000T and the Cayin C9ii, I expected a lower level of SQ and product quality.

2011年4月27日 · However, a large volume output can really damage your hearing, even further, anything over ~75-85 dB can cause your ears to tune out low and high frequencies. This in turn can actually decrease the quality of your music (Inner Fidelity). Anything over 90 dB can damage your hearing if exposed too long. Ideal listening levels should be around 60 ...

2021年5月2日 · So, if you boost frequencies below 50 Hz by +15 dB and then listen to the music at 15 dB lower volume setting, it is actually cutting frequencies above 50 Hz. If you listen to 10 dB lower level, your bass boost is actually +5 dB (√10 ≈ 3.16 times the power, because +5 dB is increasing the level by +3 dB about 1.66 times and 2^1.66 ≈ 3.16 ).

2014年2月10日 · It looks like power of your amp is only published as "80mW @ 16 ohms". Mad Dogs are rated about 50 ohms and 90 dB/mW, so they need roughly 316mW based on the above calculations. So, more power could be useful.