Dynacord CL 800 User manual

ENGLISH
CL800 •CL1200 •CL1600 •CL2000

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.
PHILOSOPHY
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 TECHNOLOGY
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.
DYNAMIC LIMITERS
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.
LPN + LO-CUT
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.
TECHNOLOGY
Class H
konventionell
Output Power Power Consumption Power Dissipation
21 dBu
THD = 1%
Power Am
p
lifiers

FRONT
The dB-calibrated level controls are implemented as ultra-precise detent potentiometers that are recessed in the front panel to protect
them from accidental contact. Power, Protect, Signal and Limit LEDs provide a quick overview of the operating status.
SAFETY PACKAGE
The complete CL series is equipped with protections against overheating, overloading, short-circuits, DC and HF as well as a
Back-EMF protection. With the Soft Start system, the power outputs are switched on via a relay when a safe operational state
has been reached and a power-up delay prevents the mains fuses being activated.
The electronically balanced XLR IN / OUT sockets are provided
for direct operation with professional mixing consoles and signal
processors. All the models in the CL series are designed for a
Constant Gain of 32 dB. The power outputs for Channels
A and B are on Speakon connectors. A Ground Lift switch is
also provided to separate the chassis ground from the signal
ground in order to eliminate ground loop hum.
REAR
CL800 Rated at 2 x 600 watts into 2 ohms and 2 x 400 watts
into 4 ohms, the smallest power amplifier in the CL series, which
uses class AB technology, weighs in at a mere 13 kg and is the-
refore the ideal amp for fairly small full-range cabinets.
CL1200 Delivering a reliable 2 x 900 watts into 2 ohms and
2 x 600 watts into 4 ohms, this is the ideal amplifier for a wide
variety of full-range cabinets and MF/HF components in multi-
way systems.
CL1600 Rated at 2 z 1100 watts into 2 ohms and 2 x 800 watts
into 4 ohms, this amplifier is ideal for use with professional full-
range cabinets and also passive TOP/SUB combinations.
CL2000 The flagship of the CL series delivers a hefty 2 x 1400
watts into 2 ohms and 2 x 1000 watts into 4 ohms, whilst
weighing a mere 18 kg. Ideal for driving large subwoofer arrays
as well as full-range and MID-HIGH components with high
power handling.
CL SERIES
Power Amplifiers

CL800 CL1200 CL1600 CL2000
Load Impedance 2 ohms 4 ohms 8 ohms 2 ohms 4 ohms 8 ohms 2 ohms 4 ohms 8 ohms 2 ohms 4 ohms 8 ohms
Max. Midband Output Power
THD = 1%, 1kHz 600 W 400 W 240 W 900 W 600 W 350 W 1100 W 800 W 500 W 1400 W 1000 W 600 W
Rated Output Power
THD < 0.1%, 20Hz … 20kHz ---- 300 W 150 W ---- 500 W 250 W ---- 700 W 350 W ---- 900 W 450 W
Max. Single Channel Output Power
Dynamic Headroom, IHF-A 1100 W 580 W 300 W 1450 W 850 W 450 W 2200 W 1200 W 625 W 2700 W 1450 W 750 W
Max. Single Channel Output Power
Continuous, 1kHz 800 W 480 W 270 W 1200 W 720 W 410 W 1500 W 950 W 550 W 1900 W 1150 W 650 W
Max. Bridged Output Power
THD = 1%, 1kHz ---- 1200 W 800 W ---- 1800 W 1200 W ---- 2200 W 1600 W ---- 2800 W 2000 W
Maximum RMS Voltage Swing
THD = 1%, 1kHz 50 V 62 V 72 V 80 V
Power Bandwith, ref. 1kHz
THD =1%, half power @ 4 ohms 10Hz … 60kHz
Voltage Gain, ref. 1kHz 32.0 dB
Input Sensitivity
rated power @ 8 ohms, 1kHz +1.15 dBu (0.88 V rms) +3.2 dBu (1.12 V rms) +4.7 dBu (1.33 V rms) +5.8 dBu (1.51 V rms)
THD at rated output power
MBW = 80kHz, 1kHz < 0.05%
IMD-SMPTE, 60Hz, 7kHz < 0.02%
DIM 30, 3,15kHz, 15kHz < 0.01%
Maximum Input Level +22 dBu (9.76 V rms)
Crosstalk
ref. 1kHz, at rated output power < -80 dB
Frequency Response, ref 1kHz 15Hz … 40kHz (-1dB) 15Hz … 40kHz (-1dB) 15Hz … 40kHz (-1dB) 15Hz … 40kHz (-1dB)
Input Impedance, active balanced 20 kohms
Damping Factor, 1kHz > 300
Slew Rate 25 V/µs 30 V/µs 35 V/µs 35 V/µs
Signal to Noise Ratio, A-weighted 103,5 dB 105,5 dB 107 dB 107 dB
Output Noise, A-weighted < -70 dB
Output Stage Topology Class AB Class H
Power Requirements 100V, 120V, 220V, 230V, 240 V; 50Hz … 60Hz (factory configured)
Power Consumption
1/8 max. output power @ 4 ohms 440 W 445 W 570 W 720 W
Protection Audio Limiters, High Temperature, DC, HF, Back-EMF,
Peak current Limiters Inrush Current Limiters, Turn-On delay
Cooling Front-to rear, 3-stage fans
Ambient Temperature Limits +5° … +40° ( 40°F … 105°F )
Safety Class I
Dimensions ( W x H x D ) mm 483 x 88.1 x 386.8
Weight 13.5 kg (30.8 lbs) 15 kg (33 lbs) 16 kg (35.2 lbs) 18.2 kg (40.1 lbs)
Optional Accessory:
Rear Rackmount 15.5" D112 930 (NRS90262)
Rear Rackmount 18.0" D112 933 (NRS90264)
TECHNICAL SPECIFICATIONS
Power Amplifiers
LPN + Lo-Cut Filter D112963 (NRS 90268)
Americas
Telex Communications Inc.
12000 Portland Ave South,
Burnsville, MN 55337, USA
USA: Phone: [phone]
Fax: [phone]
Canada: Phone: [phone]
Fax: [phone]
Latin America: Phone: [phone]
Fax: [phone]
Europe, Africa & Middle-East
Germany: EVI Audio GmbH.
Hirschberger Ring 45,
D-94315 Straubing, Germany
Phone: [phone]
Fax: [phone]
France: EVI Audio France S.A.,
Parc de Courcerin,
Allée Lech Walesa,
F 77185 Lognes, France
Phone: [phone]
Fax: [phone]
UK: Shuttlesound,
4 The Willows Centre,
Willow Lane, Mitcham,
Surrey CR4 4NX, UK
Phone: [phone]
Fax: [phone]
Asia & Pacific Rim
Japan: EVI Audio Japan Ltd.
5-3-8 Funabashi, Setagaya-Ku,
Tokyo, Japan 156-0055
Phone: [phone],
Fax: [phone]
China: Telex EVI Audio (Shanghai) Ltd.
Room 2210-2215,
Tower B, Far East International Plaza
No. 317, Xianxia Road,
Shanghai, China, PC: 200051
Phone: [phone]
Fax: [phone]
Hong Kong: Telex EVI Audio (HK) Ltd.
Unit 5,1/F,Topsail Plaza
11 On Shum Street
Shek Mun,Shatin HK
Phone: [phone]
Fax: [phone]
Singapore: Telex Pte. Ltd.
3015A Ubi Road 1, 05-10
Kampong Ubi Industrial Estate,
Singapore 408705
Phone: [phone]
Fax: [phone]
Be Heard. © 2006 TELEX Communications, Inc. · Art.Nr. D160143 · Printed in Germany (BECK/DR) · 5000/01/06