Bass response question:
Does the damping factor (control?) of an amp have any effect on that of a dedicated subwoofer amp connected via variable line out?
Or am I hearing something different?
My office system has a Hegel H 190 and a pair of Magnepan LRSs. The variable line out on the Hegel is connected to a dedicated subwoofer amp which powers 4 subwoofers.
I got back a Michael Yee Audio PA-1 SS 100wpc amp from Michael Yee sent in for repairs and some mods to the high end frequency response.
Over the holidays, I swapped out the Hegel and hooked up the PA-1 using a Bryston BP26 preamp. Variable line outs to the subwoofer amp. Same source (basic streaming from laptop)
After listening for just a few minutes, the first thing I heard was a noticeable difference in the bass response.
At anything above low level listening, it seemed fuller and more enveloping. But not as tight (fast?).
At anything above moderate levels, I had to get up and slightly reduce gain on the subwoofer amp.
Swapped the Hegel back in, listened for a few days then switched back to the Bryston/PA-1.
Is this because the Hegel and PA-1 have very different damping factors that affect the subwoofer amp?
I tend to enjoy the difference depending on what's playing.
Can't tell if there is an overall preference yet.
Just curious about what is behind this difference.