Dynacord LX1600, LX3000, LX2200 User Manual

SWITCHMODE PRECISION SERIES

ultra light weight power amplifiers

LX1600 • LX2200• LX3000

ENGLISH

SWITCHMODE PRECISION SERIES ultra light weight power amplifiers

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 astate-of-the-artswitching power supply has made possible the creation of a professional power amplifier delivering up to2 x 1500 watts into 4 ohms with excellent audio specifications but weighing only8.7 kg. Even complex loads as low as 2 ohms can be driven with absolute reliability. Amp racks containing several LX power amplifiers for activemulti-wayuse are therefore easy to manipulate.

• Comprehensive set of protective circuits • High-efficiencyclass-Hdesign • 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

Class H

konventionell

Output Power

Power Consumption Power Dissipation

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.

THD = 1%

21 dBu

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-passnotch) filter with alow-cutfilter. These eliminate transientnon-linearitiesin the low frequency range in small tomedium-sizedfullrange speakers and thereby considerably extend the reproducible range at the bottom end. The acoustic result is bass reproduction with more punch and greater substance.

SWITCHMODE PRECISION SERIES ultra light weight power amplifiers

FRONT

The dB-calibratedlevel controls are implemented asultra-precisedetent 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.

REAR

The electronically balanced XLR IN / OUT sockets are provided for direct operation with professional mixing consoles and signal processors. All the models in the LX series are designed for a Constant Gain of 32 dB. The power outputs for Channels A and B are on Speakon connectors. AGround Lift switch is also provided to separate the chassis ground from the signal ground in order to eliminate ground loop hum.

LX1600

With an output rated at 2 x 1300 watts into 2 ohms and 2 x 800 watts into 4 ohms, this is the ideal power amplifier for small to medium-sizedfull-rangecabinets and MF/HF components in active multiway systems.

LX2200

With a stable output of 2 x 1600 watts into 2 ohms and 2 x 1100 watts into 4 ohms, this is the ideal amplifier for professional multi-waycomponents as well as mediumsized subwoofers in concert sound systems.

LX3000

The new flagship of the LX series delivers a mighty 2 x 2100 watts into 2 ohms and 2 x 1500 watts into 4 ohms and therefore has plenty of headroom for large subwoofer arrays.

SAFETY PACKAGE

The complete LX series is equipped with protections against overheating, overloading, short-circuits,DC and HF as well as aBack-EMFprotection. With the Soft Start system, the power out-

puts are switched on via a relay when a safe operational state has been reached and a power-updelay prevents the mains fuses being activated.

SWITCHMODE PRECISION SERIES ultra light weight power amplifiers

TECHNICAL SPECIFICATIONS

				LX1600		LX2200				LX3000
	Load Impedance		2 ohms	4 ohms	8 ohms	2 ohms	4 ohms	8 ohms	2 ohms	4 ohms	8 ohms
	Max. Midband Output Power		1300 W	800 W	500 W	1600 W	1100 W	600 W	2100 W	1500 W	900 W
	THD = 1%, 1kHz
	Rated Output Power		----	700 W	350 W	----	900 W	450 W	----	1200 W	600 W
	THD < 0.1%, 20Hz … 20kHz
	Max. Single Channel Output Power		2200 W	1200 W	625 W	2600 W	1400 W	720 W	2900 W	1800 W	1000 W
	Dynamic Headroom, IHF-A
	Max. Single Channel Output Power		1700 W	1000 W	550 W	2100 W	1300 W	660 W	2600 W	1700 W	950 W
	Continuous, 1kHz
	Max. Bridged Output Power		----	2600 W	1600 W	----	3200 W	2200 W	----	4200 W	3000 W
	THD = 1%, 1kHz
	Maximum RMS Voltage Swing			72 V			78 V			95 V
	THD = 1%, 1kHz
	Power Bandwith, ref. 1kHz					10Hz … 60kHz
	THD =1%, half power @ 4 ohms
	Voltage Gain, ref. 1kHz						32.0 dB
	Input Sensitivity		+4.7 dBu (1.33 V rms)			+5.8 dBu (1.51 V rms)			+7.0 dBu (1.74 V rms)
	rated power @ 8 ohms, 1kHz
	THD at rated output power						< 0.05%
	MBW = 80kHz, 1kHz
	IMD-SMPTE,60Hz, 7kHz						< 0.02%
	DIM 30, 3,15kHz, 15kHz						< 0.05%
	Maximum Input Level					+22 dBu (9.76 V rms)
	Crosstalk						< -80dB
	ref. 1kHz, at rated output power
	Frequency Response, ref 1kHz					15Hz … 40kHz (-1dB)
	Input Impedance, active balanced						20 kohms
	Damping Factor, 1kHz						> 300
	Slew Rate			30 V/µs			35 V/µs			38 V/µs
	Signal to Noise Ratio, A-weighted			107 dB			107 dB			108 dB
	Output Stage Topology						Class H
	Power Requirements			100V, 120V, 220V, 230V, 240 V; 50Hz … 60Hz (factory configured)
	Power Consumption			625 W			850 W			1070 W
	1/8 max. output power @ 4 ohms
	Protection				Audio Limiters, High Temperature, DC, HF, Back-EMF,
					Peak current Limiters Inrush Current Limiters, Turn-Ondelay
	Cooling					Front-torear,3-stagefans
	Ambient Temperature Limits					+5° … +40° ( 40°F … 105°F )
	Safety Class						I
	Dimensions ( W x H x D ) mm					483 x 88.1 x 384
	Weight		7.80 kg (17.2 lbs)			8.15 kg (18.0 lbs)			8.70 kg (19.2 lbs)
	Optional Accessories:
	Rear Rackmount 15.5"					D112 930 (RMS15-CL)
	Rear Rackmount 18.0"					D112 933 (RMS18-CL)
	LPN + Lo-CutFilter					D112963 (NRS 90268)
	Americas		Europe, Africa & Middle-East			Asia & Pacific Rim
						Japan:	EVI Audio Japan Ltd.
	Telex Communications Inc.		Germany:	EVI Audio GmbH.			5-3-8Funabashi,Setagaya-Ku,			Hong Kong:	Telex EVI Audio (HK) Ltd.
	12000 Portland Ave South,			Hirschberger Ring 45,			Tokyo, Japan 156-0055				Unit 5,1/F,Topsail Plaza
	Burnsville, MN 55337, USA			D-94315Straubing, Germany			Phone: [phone],				11 On Shum Street
				Phone: [phone]			Fax: [phone]				Shek Mun,Shatin HK
				Fax: [phone]		China:	Telex EVI Audio (Shanghai) Ltd.				Phone: [phone]
	USA:	Phone: [phone]									Fax: [phone]
			France:	EVI Audio France S.A.,			Room 2210-2215,
		Fax: [phone]
				Parc de Courcerin,			Tower B, Far East International			Singapore:	Telex Pte. Ltd.
	Canada:	Phone: [phone]		Allée Lech Walesa,		Plaza					3015A Ubi Road 1, 05-10
		Fax: [phone]		F 77185 Lognes, France			No. 317, Xianxia Road,				Kampong Ubi Industrial
	Latin America:	Phone: [phone]		Phone: [phone]			Shanghai, China, PC: 200051			Estate,
				Fax: [phone]			Phone: [phone]				Singapore 408705
		Fax: [phone]
							Fax: [phone]				Phone: [phone]
			UK:	Shuttlesound,
											Fax: [phone]
				4 The Willows Centre,
				Willow Lane, Mitcham,
				Surrey CR4 4NX, UK
				Phone: [phone]
				Fax: [phone]

Be Heard. © 2006 TELEX Communications, Inc. · Art.Nr. D163072 · Printed in Germany (BECK/DR) · 5000/01/06