Previous SNR loss (also called speech loss) studies showed that (1) SNR loss cannot be predicted from audiometric measures, (2) 40% of hearing aids wearers have 5 dB SNR loss or greater, and (3) SNR loss influences speech intelligibility significantly. These showed SNR loss to be important in speech recognition, but they do little, or no to illuminate the nature of consonant confusion, resulting from SNR loss. Thus, the goal of the current study was to investigate the effect of SNR loss on 16 consonants recognition in hearing impairment as a function of SNR. Confusion matrix data were collect and analyzed, and Fletcher’s AI was calculated from the SNR. These two measures were utilized (1) to determine how SNR loss was related to the event loss, (2) to test whether clustering of syllables in terms of consonant confusions was complied with SNR loss, and (3) to compare PI functions obtained from subjects and AI model. The results show that the degree of consonant confusion varies, but members of consonants confused with target sound above chance level are similar, as a function of SNR loss and SNR. It suggests that SNR loss limits recognition for specific consonants, even in noise.