@wolf_garcia , actually the (2001?) update flattens the low level curves somewhat. At least above 100Hz. Below that, room effects dominate anyway. So listening 10 or 20 dB below your normal listening level should reduce room distortion in the bass, but won't otherwise affect the balance enough to compensate for the tone control distortion. IMO.
But that bass boost can be fun sometimes, can't it?
But that bass boost can be fun sometimes, can't it?