amplifier's "slam-factor"

What about the slew rate of an amplifier?

Does this play a part in the perception of "slam" factor?

Just throwing out thoughts,
benny

i suggest you look at the control that each amp has on the drivers "damping factor"

Aleph 5 50
SF Power2 100
ML 33H 830
Krell ??? ???

Like Atzen811 slewrate factor I suggest that the ability of the amp to control the drives is very important and likely to affect the sense of slam

aleph very tube like
sf very tube to kinda ss
ml very ss with an incredible sense of control and quiet
krell ?????????

not solving anything here but interested to hear comments and ideas

Onhwy61 I think you need to get out more as live music is fast without "sounding" fast.....This is a real trick to reproduce in solid state gear, some can, but most can't.....The odd order higher harmonics normally make the slam come across as hard sounding if the musical peak takes the SS amp out of it's Class A region....The solution is to allow more Class A, enough for the musical peaks.....BEAR runs the Symphony No. 1 to about 40w Class A and we run the JC-1s to almost 30w Class A....Using 89 dB efficient speakers neither amp gets out of Class A on peaks and is one reason that the line between tube and solid state has become blurred in the past decade.....

As a general rule, I have found that MOSFET amps tend to provide "one note" bass that sounds like a wet pillow being struck by a canoe paddle. The sort of bass heard on early Telarc recordings. Bi-polar designs seem to be much better in this respect. Over the years, I have found that the biggest challenge in hi-end audio is getting good, tight, deep, natural sounding bass. Attaining air, depth, detail, extended highs and natural timbre are all easier by comparison.

The trouble with buzzwords like "slam factor" is that they invariably tend to mean somewhat different things to different people. Oh the joy of subjective audio where you have large watts and small watts and where the more murky the explanation the better. One man's slam is another man's unnatural exaggerated bass. Go figure! They all sound the same. They all sound different. Take your pick. It's a free country. Has anyone ever heard the sound of an amp without speakers? Maybe everyone should consider the two as inseparable. Maybe then one would say: "amp a when driving my speakers at exactly matched level, in the same room, playing the same source material sounds, to my ear at least, as producing more natural or more accurate bass than amp b". Good day.