Ah, those Paul Wilber Klipsch Speakers -- Paul you did it again at over 122db, WOW...
Denon AVR-4311CI and Denon AVR-3311CI Pre/Pro Emotiva XPA-5 LG BD-590 w/Wifi/250GB HDD DirecTV Sat IRD Technics TT - Legacy Klipsch RF-82II x 2 - Fronts Klipsch RC-62II - Center Klipsch RS-52II x 2 - Surrounds Klipsch RW-12d (12"-350W) Sub Left PA-150 (15"-250W) Sub Right Vizio 55" HD 1080p Monitor Sennheiser RS-180 W/L Headphone MonoPrice and AR Cables and something else is Missing like More $$$.
With my pistols I could shoot several shots with no pain or ringing. Its a must to wear ear plugs with the AR and AK unless I want to be deaf after 2 or 3 shots. Not so with any pistol. Im sure its different for others though.
While it may be true that pistols are significantly less powerful than rifles, they are certainly loud enough to cause hearing damage. This is true for "weak" cartridges like the 9mm, and even the lowly .22.
You absolutely need to be wearing hearing protection for any pistol or rifle.
Even with a suppressor (which dramatically muffles but does not "silence"), you can be above the threshold for damage. .22s are generally safe to shoot suppressed, subsonic .45s can be, but unless you know you have subsonic loads, nearly all 9mm rounds will still have a loud crack, and 3000 fps rifle rounds certainly will.