BDJ

I don't dare to mess with these speakers myself. I will take them to an expert for checkup. Just wanted to know if this is something other people encountered and fixed.

I bought recently a pair of AR-4x speakers. The grills were never removed. Pots seem to be not functional (maybe they were replaced by L-pads), but the sound is good, although I cannot compare this sound to the original best sound these speaker produced, because this is the first time I have them. Now, there is a little annoying issue: certain jazz acoustic bass sound (like the one of Charlie Haden) results in rattling coming somewhere from speakers, or surroundings, at some low frequencies. Other acoustic bass sounds - like the one from Gary Peacock, do not produce rattling, because they are somewhat flatter. I keep the bass control knob on my amp at neutral, 0. I tested them at 45% volume. I discovered that when I reduce the amp bass control from 0 to -10, I don't hear rattling on those certain frequencies. I drive these speakers with Sony Audio Control Center, 2 x 100 W amp. I wonder if AR-4x speakers are known for producing rattling when too much bass is sent from the amp?? Or, it is probably more likely that they need some repair. I will take them to one vintage stereo repair shop soon, but I wanted to know if anybody else experience this issue. Thanks, BDJ