Slam
 

Slam is something you do with a door if you are really shagged off with how
the day has gone

I love these geeky technical posts - mostly above my head, but I try to learn
as much as I can and take detailed technical notes to go over when I have an
idle moment.

=== Andy Evans ===
Visit our Website:- http://www.artsandmedia.com
Audio, music and health pages and interesting links.

Slam
 

On the other hand, if you take a Cyrus and launch it from a trebuchet it can
produce more slam than the Krell dropped from head height.



You've been staying up late watching those Open University science programmes -
don't think you're the only one awake at 4.45am watching reconstructions of
trebuchets hurling silicone loads........

=== Andy Evans ===
Visit our Website:- http://www.artsandmedia.com
Audio, music and health pages and interesting links.

Slam
 

On the other hand, if you take a Cyrus and launch it from a trebuchet it can
produce more slam than the Krell dropped from head height.



You've been staying up late watching those Open University science programmes -
don't think you're the only one awake at 4.45am watching reconstructions of
trebuchets hurling silicone loads........

=== Andy Evans ===
Visit our Website:- http://www.artsandmedia.com
Audio, music and health pages and interesting links.

Slam
 

"Tim S Kemp" wrote in message
. ..

"The Old Fogey" wrote in message
om...
Can anyone define 'Slam' in the context of audio power amps?

The ability to deal with sudden short lived transient sounds - preferably
without affecting the rest of the output of the amp. Normally acheived
with
good PSU design and big power reserves and capable of transient output
well
beyond the units continuous ratings.

**Nope.


--
Trevor Wilson
www.rageaudio.com.au

Slam
 

"Tim S Kemp" wrote in message
. ..

"The Old Fogey" wrote in message
om...
Can anyone define 'Slam' in the context of audio power amps?

The ability to deal with sudden short lived transient sounds - preferably
without affecting the rest of the output of the amp. Normally acheived
with
good PSU design and big power reserves and capable of transient output
well
beyond the units continuous ratings.

**Nope.


--
Trevor Wilson
www.rageaudio.com.au

Slam
 

On Thu, 02 Oct 2003 20:05:30 +0100, Don Pearce
wrote:

So in a decent amplifier, for these and a heap of other reasons, the
transient headroom should be an integral part of the full power
rating.

We're just arguing over what power output should be labelled Full
Power :-)

Any amplifier will work continuously at a given power. Over that
level, what do you want it to do? Shut down, or do the best it can,
albeit not continuously?

Slam
 

On Thu, 02 Oct 2003 20:05:30 +0100, Don Pearce
wrote:

So in a decent amplifier, for these and a heap of other reasons, the
transient headroom should be an integral part of the full power
rating.

We're just arguing over what power output should be labelled Full
Power :-)

Any amplifier will work continuously at a given power. Over that
level, what do you want it to do? Shut down, or do the best it can,
albeit not continuously?

Slam
 

On Thu, 2 Oct 2003 19:16:30 +0100, "Tim S Kemp"
wrote:


"The Old Fogey" wrote in message
. com...
Can anyone define 'Slam' in the context of audio power amps?

The ability to deal with sudden short lived transient sounds - preferably
without affecting the rest of the output of the amp. Normally acheived with
good PSU design and big power reserves and capable of transient output well
beyond the units continuous ratings.

Absolute hooey! If you do have good PSU design and big current
reserves, then the very *last* thing you get is transient output well
beyond the unit's continuous ratings. What you are describing is the
typical reponse of a cheap multichannel receiver, not a Krell.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

Slam
 

On Thu, 2 Oct 2003 19:16:30 +0100, "Tim S Kemp"
wrote:


"The Old Fogey" wrote in message
. com...
Can anyone define 'Slam' in the context of audio power amps?

The ability to deal with sudden short lived transient sounds - preferably
without affecting the rest of the output of the amp. Normally acheived with
good PSU design and big power reserves and capable of transient output well
beyond the units continuous ratings.

Absolute hooey! If you do have good PSU design and big current
reserves, then the very *last* thing you get is transient output well
beyond the unit's continuous ratings. What you are describing is the
typical reponse of a cheap multichannel receiver, not a Krell.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

Slam
 

On Thu, 02 Oct 2003 19:56:27 +0100, Laurence Payne
wrote:


Any really good amplifier will be able to handle full power
more-or-less continuously - certainly for several minutes - without a
problem.

And wouldn't object to being asked to deliver considerably more if
momentarily demanded? You seem to be arguing against transient
headroom :-)

Anyone who knows anything about amps *does* argue against 'transient
headroom', which is just another word for a cheap power supply. Take a
£15,000 Krell amp, for instance. This will deliver close to a kilowatt
into an 8 ohm load forever, with virtually *no* 'transient headroom'.
You think this makes it lacking in 'slam'?
--

Stewart Pinkerton | Music is Art - Audio is Engineering