DESCRIPTION

High power, space efficiency, and proven reliability

The fP 3400 is a lightweight and space-saving power amplifier, ideal
for use in high quality touring sound systems as well as in demanding
permanent installations.

Heat and cooling are fundamental problems in many extreme high power
amplifiers similar to the fP 3400. Addressing this issue with
innovative thinking, Lab.gruppen patented a high efficiency amplifier
topology that represents a major evolutionary step beyond the typical
Class D design. Designated Class TD® (for Tracking Class D), this
breakthrough technology achieves the same high efficiency as Class D,
while avoiding the inherent drawbacks. In particular, Class TD avoids
the steep recovery filter in the audio path that is required with
ordinary PWM Class D designs. Although overall efficiency
is comparable to Class D designs, Lab.gruppen’s Class TD maintains the
same pristine sonic quality as a traditional Class AB amplifier.