Dynacord CL 200 manual Philosophy, Class H Technology, Dynamic Limiters, Lpn + Lo-Cut

Power Amplifiers

PHILOSOPHY

For decades, DYNACORD has been one of the leading manufacturers in the pro audio sector and has established a com- manding position in the amplifier market thanks to the excellent audio performance, absolute reliability and high stability of the Linear Precision series.

TECHNOLOGY

Through the use of optimized power supplies with toroidal transformers (on account of their low stray fields) and the intelligent application of class H technology (CL 800: class AB), headroom way above the declared nominal power has been achieved as well as a notable reduction in weight and waste heat. CL power amplifiers satisfy the extreme demands of life on the road and deliver between a nominal 2x 400 watts and 2x 1000 watts into 4 ohms. Even complex loads as low as 2 ohms can be driven with absolute reliability. Ranging in weight from only 13 kg to 18 kg, two or more CL power amplifiers can be combined in racks that remain easy to transport.

CLASS - H TECHNOLOGY	Class H
	konventionell
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.	Output Power Power Consumption Power Dissipation
DYNAMIC LIMITERS

Dynamic limiters are general components in all DYNACORD power amplifiers. High-speed 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% at the output.

THD = 1%

21 dBu

LPN + LO-CUT

The retrofittable NRS 90268 kit, which is available as an option for all CL 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 full-range speakers and thereby considerably extend the reprodu- cible range at the bottom end. The acoustic result is bass reproduction with more punch and greater substance.