In article , Trevor Wilson
wrote:
[snip]

Now I understand!

Slam is an amplifier/speaker combination working as designed, without
being overdriven.

**Nope. At no time should the amplifiers be allowed to exceed their
maximum Voltage/current limits. I thought that was a given, in any
proper test. I specified the above equipment, because it should expose
the effect readily. With other brands/models, the effect may be
noticable, but (possibly) less obvious.

In that case I am afraid that I am personally unclear what you mean, since
when in the past I have compared BJT and MOSFET amps then - provided they
have the same frequency response and output impedance and are not clipping
or being overdriven - then I have no recollection of hearing any difference
which I might think could be called 'slam'.

i *have* heard mosfet (and other amps) in the past that changed the sound
when driving difficult loads as a result of limiting or high output
impedance. But if I understanding you correctly, you are excluding this
mechanism from what you say.

Slainte,

Jim

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