Very good description ...thanks..
The organ playing timbre as said kijanki is more definite because the playing timbre is defined by this attack and decay time, then the bass is not only there by amount or speed as said kijanki as much as musically there by the power of the attack with a clear sustained decay time...Timbre perception is the heart of music and acoustic perception....
Bass tone are not mere number in decibel and frequencies, their are for a musician a timbre with his attack and decay time . The way an headphone or speakers are able to convey the timbre tactile experience to the ears and especially to the body is what matter...It is not only about decibels and frequencies even if it is important for sure..
The difference was in the sound of the bass - attack and decay, became more natural, more melodic. IMHO it is not between amount or speed, but the overall sound of the bass.