Rolf is right bigger is better for L300's
Quote:
Originally Posted by Rolf
Hi all. Today I read the following article that I think will give some answers regarding this thread, and this is the physicals laws. Sorry for any spelling errors. And I Quote:
There's is no point in using a pint sized amp and bookshelf speakers in a hall and expecting a great sound.
There's a correct loudspeaker and amplifier for every room.
Large amplifiers and loudspeakers combinations have the potential of delivering a higher quality of sound than their smaller counterparts. So what is the advantages of powerful amplifiers?
Imagine the dynamics of a loudspeaker driver. The moving portion of the driver (the cone) has mass and in order to create sound pressure must displace the air around it (do work) at a frequency dependent upon the source. Supplying and controlling the kinetic energy of the driver cone represents a significant challenge for an amplifier. An idal cone be infinitely light, stiff and have no friction. In reality the cone has both mass and friction.
The amplifier effectively pushes and pulls the driver cone in and out of the speaker cabinet (like an automobile piston) at musical reproduction frequencies. In an ideal system, the driver cone will exactly match these frequencies, but in reality most amplifires struggle to do this effectively as they haven't got the current drive to exert sufficint grip over the cone. To decelerate and stop the cone, then accelerate it to velocity in the oposite direction at musical frequencies is a task that only powerful high current dessign amplifires can perform efficiently.
An inferion amplifier can't exert sufficient contol over the driver cone and as a result the sound can appear smeared.
You'll require a larger amplifirer if you want to fully appreciate the dynamics of music at lower listening levels, alternately if you require your system to produce higher volume levels.
Musical transients can be many times louder than normal and past a certain point a smaller amplifier is unable of reproducing these and will simply "clip" the transients off.
The same scenario applies after a point when increased volume is called for.
The main reason why speaker drivers become damaged, in turn damaging the amplifier is that the amplifier is undersized. The user turns up the volume and past a point the amplifier will begin to clip. Under these circumstances the speaker driver is fed DC, overheats and is permanetly damaged. The amplifier is presented with lower impedance and delivers greater current usually blowing its internal fuse in the process.
The solution to both is to use a powerful amplifier in your audio system.
Rolf
I think Rolf is right. For the L300's the larger the amp the better the dynamics
In my home theater which uses L300's on the bottom and 4333A's on top
I power them with a Krell MDA 500. It's power output into 4 ohms over a
1000 watts. I am new to this forum and will try to post pictures. The L300's
seem to lose the Lpads or the load resistors or a cap if to much dirty power
is allowed. I have never blown one up in 25 years with clean power. With the
Krell's in class A output I have heard thinks I did not with Thresholds, H.K.'s
Audio Research and others. Maybe try a Pass 350 or 600 or Krell KSA 250 or
larger. These amps really lock in control and imaging.
http://dmbshare.org/pictures/amp003-small.jpg
If you like loud rock music
I have a guaranteed winner setup:
Jbl L300's with 2235 woofers
ADA Cinema Rhapsody (original, Mach 1, Mach 2, Mach3 or Mach 4) a must.
Nakamichi PA 7 or 7 A or Hafler 9500 or 9505.
If you like loud, hard hitting rock music, YOU WILL NOT BE DISAPPOINTED!
You must have the ADA.(Audio Design Associates) BEST BASS.
This set up stands above all I have tried. The Anthem AV-20 preamp does not even come close to the ADA.
This compares very close to a maximum clean output into Carver Platinum Mark IV's.
Scott:applaud: