and Test Tones
Mack’s Roll-Ups Wallet earplugs are stored flat in package that is smaller than a credit card. Each package includes a pair of silky smooth strips of foam that roll up in seconds. They are designed to fit any size of ear canal: simply roll tighter for smaller ears. Once inserted, the plug will conform to the ear and provide decent comfort and hearing protection.
Average price : $5 a 4-pair box.
NRR stands for Noise Reduction Rating. It is a standardized measure expressed in decibels (dB), and represents the overall attenuation offered by the earplug. The higher the NRR, the stronger the attenuation. Differences in the NRR of less than 3 dB between earplugs have no importance in practice.
ΔF represents an important factor for musical applications, as it measures the standard deviation from a spectrally flat attenuation between 60Hz and 16kHz. The smaller the ΔF, the higher the fidelity. ±3dB is virtually inaudible and can be considered as the very best one can get.
In any case, Mack's Roll-Up Wallet earplugs are not meant to provide you with the best and flattest attenuation for music purposes. Nor do they offer you the easiest insertion and highest comfort. But, they excel in the purpose for which they are intended: to provide a solution that will save your hearing in unexpectedly loud environments!
|At Home||•||Not what they are meant for.|
|On the go||•••||The concept is simply brilliant.|
|Industry||•||Unreliable attenuation. Not easily inserted.|
|Music||•||Not neutral, but will save your hearing.|