Dynacord LX1600, LX3000, LX2200 User Manual
SWITCHMODE PRECISION SERIES
ultra light weight power amplifiers
ENGLISH
LX1600 • LX2200 • LX3000
PHILOSOPHY
For decades, DYNACORD has been one of the leading manufacturers in the pro audio sector and has established a commanding position in the amplifier market thanks to the excellent
audio performance, absolute reliability and high stability of the
Linear Precision series.
SWITCHMODE TECHNOLOGY
The combination of an analogue class-H design with a
state-of-the-art switching power supply has made possible
the creation of a professional power amplifier delivering up
to 2 x 1500 watts into 4 ohms with excellent audio specifi-
cations but weighing only 8.7 kg. Even complex loads as low
as 2 ohms can be driven with absolute reliability. Amp racks
containing several LX power amplifiers for active multi-way
use are therefore easy to manipulate.
CLASS - H TECHNOLOGY
With this technology, two different power supply rails are permanently available
internally to the power amplifier blocks. For most of the program material, the lower
operating voltage is able to reproduce the audio signal flawlessly; however, as soon
as there are dynamic peaks, the amplifier switches internally and at high speed to
the higher supply voltage. Since for long periods the power amplifier blocks are operating with the lower supply voltage, there is considerably less power dissipation
than with conventional class AB power amplifiers, which also means considerably
less waste heat.
Class H
konventionell
Output Power
Power Consumption Power Dissipation
DYNAMIC LIMITERS
Dynamic limiters are general components in all DYNACORD power amplifiers. Highspeed audio processors are continuously comparing the input signal to the output signal,
and in the event of any non-linearity, the processors send control signals to the limiters,
which operate dynamically upon the input level. As a result, the THD all the way up to
21 dBU is limited to an inaudible 1% max at the output.
LPN + LO-CUT
The retrofittable NRS 90268 kit, which is available as an option for all LX power amplifiers, combines the patented LPN (low-pass notch) filter with a low-cut filter. These eliminate transient non-linearities in the low frequency range in small to medium-sized fullrange speakers and thereby considerably extend the reproducible range at the bottom
end. The acoustic result is bass reproduction with more punch and greater substance.
21 dBu
THD = 1%
• Comprehensive set of protective circuits • High-efficiency class-H design • Switching power supply
• Extremely light and compact • Dynamic audio limiter • Highest reliability at 2 ohms
• 30% dynamic headroom • Constant gain with 32dB • Precise raster pots on the front panel
SWITCHMODE PRECISION SERIES
ultra light weight power amplifiers
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