Dynacord PowerH Series User's Manual
Contents
1. This permits the design of high power power amplifiers with peak output voltages in excess even of 200 V A logical step in the direction of lowering power dissipation while increasing the out put power at the same time was the development of a linear Grounded Bridge topology using Class H technology with a three stage switching floating power supply The use of an extremely sta ble switching power supply makes a decisive contribution to the very low weight of these power amplifiers 7 kW packed into 2 rack spaces and weighing less than 15 kg PowerH power amplifiers are ready for integration into IRIS Net based audio systems and networks Retrofittable remote control modules e g the RCM 26 make possible complete system supervi sion and remote control combined with digital controller functions including ultra precise FIR filters and optimised loudspeaker protec tion algorithms Powerl SERIES the new age of power Features e stable very high power output e very high efficiency e very light weight e 3 stage Grounded Bridge Class H topology e floating switching power supply e large LC display e integrated micro controller for internal control e retrofittable remote control module for integra tion into the IRIS Net with remote supervision remote control digital controller functions and digital audio inputs mi The power amplifiers of the PowerH series represent a milestone in the design and producti2. 0 Hz 100 V 50 Hz 60 Hz Power Consumption at 1 8 maximum output power 40 1000 VV 1450 W Protections Audio limiters High temperature DC HF Short Circuit Back EMF Peak current limiters Inrush current limiters Turn on delay Mains Circuit Breaker Protection Mains Overvoltage Protection Cooling Front to Rear 5 stage fans Ambient Temperature Limits 5 C 40 C 40 F 105 F Safety Class Dimensions WxHxD mm 483 x 88 1 x 498 Weight 14 2 kg 14 5 kg Amplifier at rated conditions both channels driven with 8 Q loads unless otherwise specified Americas Europe Africa Middle East UK Shuttlesound Headquarter Americas liniers q aa Headquarter Europe Willow Lane Mitcham Telex Communications Inc Africa amp Middle East Surrey CR4 ANX UK 12000 Portland Ave South EVI Audio GmbH Phone 44 208 646 7114 Burnsville MN 55337 USA Hirschberger Ring 45 Fax 44 208 254 5666 la D 94315 Straubing Germany ax 1 800 955 a aga a Canada Phone 1 866 505 5551 ee a Asia amp Pacific Rim Fax 1 866 336 8467 Headquarter Asia Latin America Phone 1 952 887 5532 France EVI Audio France S A Singapore Telex Pte Ltd Fax 1 952 736 4212 Parc de Courcerin 3015A Ubi Road 1 All e Lech Walesa 05 10 Kampong Ubi Industrial Estate F 77185 Lognes France Singapore 408705 Phone 33 1 6480 0090 Phone 65 6746 8760 Fax 33 1 6006 5103 Fax 65 6746 1206 Be Heard 2006 Telex Commu
3. 0 V This requirement limits the number of plausible topologies to two Class D and Dynacord s Linear Grounded Bridge Class H After extensive research the Dynacord engineering department decid ed against the use of Class D designs the besetting evils of Class D technology primarily distortion and a clear load dependence in the frequency response cannot be overcome even by modern designs and the result is an un wanted discoloration of the output signal Linear push pull designs with Class H topology are acceptable solu tions for output levels up to 1500 W 4 Q and are used in many Dynacord power amplifiers The limitation of the Class H push pull approach is the 250 V specification of typical audio power transistors and their second breakdown restrictions Even exceeding the speci fied peak voltage or the second breakdown limit for a short period leads directly to failure of the power transistors and the power ampli fier The use of exotic 350V specified transistors presents no reliable solution in view of their second breakdown behaviour their perform ance and also their availability Higher power classes require different solutions Dynacord s Linear Grounded Bridge designs e g L 2400 P3000 have proven extreme ly reliable over many years as well as outstanding in terms of audio performance One of the key advantages of Grounded Bridge solu tions is the considerable reduction in voltage stress for the power transistors
4. Power SERIES Hi End Remote Controllable Power Amplifiers DYNACORD a Power SERIES the new age of power A new chapter in the history of professional high per formance power amplifiers has begun The PowerH power amplifier series represents another milestone in the 60 year pro audio tradition of Dynacord DYNACORD has long been established world wide as a manufacturer of professional power amplifiers of the highest quality and has consolidated its position at the top end of the market through many innovations and a reputation for absolute reliability Electro Voice has played a substantial role in this as a sister company to Dynacord and as one of its largest OEM customers For years power amplifiers from Dynacord EV have been used in large and very large audio systems whether installed or touring all over the world Today there are literally thousands of ampli fiers made by Dynacord powering major productions in all four corners of the globe and demonstrating time and again their superlative quality and legendary reliability aj The requirements imposed upon modern power amplifiers are enormous they are expected to combine very high power minimal weight outstanding audio performance absolute reliability remote monitoring and control and networking In order to realize power levels of 2500 W 4 Q power amplifiers must be able to supply peak output voltages between 180 V and 20
5. d measurements as well as allowing you to control the basic settings and with the IRIS Net module integrated select presets as well In addition to extreme reliability and forward looking operating security the PowerH power amplifiers are impressive for their outstanding audio perfor mance The THD intermodulation distortion IMD SMPTE and dynamic intermodu lation DIM are all well below 0 05 and therefore far below the limit of audibility All the components of the switching power supply are so safely dimensioned that they are capable of delivering the maximum peak output current of 70 continuous ly thereby allowing the power amplifier to operate as a stable voltage source even at extremely low loads PowerH power amplifiers therefore have a significant amount of headroom at their disposal which results in superior dynamics even at low loads PowerH power amplifiers leave nothing to be desired in the A latching PowerCon connector is provided for the mains power line way of connectors For the inputs XLR IN parallel OUT which prevents the plug being yanked out accidentally The power sockets are provided along with additional Phoenix connectors The outputs are implemented as Speakon sockets with parallel binding input sensitivity is selectable between O dBu 6 dBu and 32 dB posts In terms of connectivity therefore PowerH power amplifiers Constant Gain In addition there are switches for bridged operation satisfy all the dema
6. fferent points and the front to rear ven tilators controlled accordingly Under abnormal thermal worst case conditions the CPU acti vates a voltage limiter or gain reduction depending upon the requirements of the situation so as to prevent a thermal shutdown of the power amplifiers All corrective measures are indi cated on the front panel and spelt out clearly on the liquid crystal display In addition a report is created making it possible to enquire later as to all such interventions each of which is time stamped The mains voltage is monitored and displayed continuously with the devices adapting auto matically to 230 V for example or 120 V At the same time the mains current consumption is also monitored and displayed The user can adjust via the front panel display the threshold value of the automatic circuit breakers In the event of possibly overloading the mains the amount of amplification is reduced to prevent the circuit breakers tripping Any short circuits at the output of the power amplifier are detected early on even at low levels The protecti ve circuit is activated and the error report in question appears simultaneously on the front dis play In the event of excessive high frequency overload there is an automatic level reduction to protect the power amplifier itself and also the loudspeaker components connected El The large backlit liquid crystal display delivers comprehensive status information error reports an
7. kHz THD 1 1900 W 1450 W 850 W 3500 W 2500 W 1500 WV Rated Output Power 20 Hz 20 kHz THD lt 0 1 1200 W 600 W 2100 W 1050 W Max Single Channel Output Power Dynamic Headroom IHF A 2050 W 700 W 940 W 4500 VV 3200 W 1800 W Max Single Channel Output Power Continuous kHz 1950 W 1600 W 900 W 4100 W 2700 W 1600 W Maximum Bridged Output Power kHz THD 1 3800 VV 2900 W 7000 W 5000 VV Maximum RMS Voltage Swing kHz THD 1 95V 125 V Power Bandwidth THD 1 ref I kHz half power 40 10 Hz 50 kHz Voltage Gain ref kHz 39 dB 33 dB 32 dB switchable 41dB 35 dB 32 dB switchable Input Sensitivity at rated output power 80 kHz O dBu 6 dBu 7 dBu switchable O dBu 6 dBu 9 dBu switchable THD at rated output power MBW 80kHz kHz lt 0 05 IMD SMPTE 60 Hz 7 kHz lt 0 05 DIM 30 3 15 kHz 15 kHz lt 0 02 Max Input Level 22 dBu 9 75 Vrms Crosstalk ref kHz at rated output power lt 80 dB Frequency Response ref kHz lt 10 Hz 30 kHz I dB Input Inpedance active balanced 20 kQ Damping Factor kHz gt 400 Slew Rate 30 V us 35 V us Signal to Noise Ratio Amplifier A weighted 32 dB constant gain 109 dB III dB Output Noise A weighted lt 70 dBu Output Stage Topology Class H Grounded Bridge Power Requirements 100 V 240 V 50 Hz 6
8. nce 2005 also for the NetMax N8000 networked matrix system HIGH LOW RS 232 CAN ADDRESS INTERFACE Hu Supervision and Diagnosis The RCM 26 transmits all relevant amplifier data to the IRIS Net user interface supervising the operating status of the power amplifiers the temperature in the power blocks and in the power supply voltages and currents at the outputs all protections the mains voltage and current consumption pilot tone and network status The impedance measurement with a 20 Hz to 20 kHz sine wave sweep and the comparison with the stored reference data makes it possible to diagnose with precision the con dition of the connected loudspeakers and even of their individual components and cable connections Problems are therefore detected early and the system is able to res pond in good time It is even easy to examine the state of loudspeakers that are difficult to access such as those in stadiums or large entertainment venues The System Check function allows you to measure comprehensively and conduct a full examination of a very large audio system at the push of a button Even in live performance the con nected load is monitored continuously Any undershooting short circuit or overshooting interruption of the set tolerance limits is automatically detected and reported immediately HE Remote Functions Remote control via the IRIS Net provides Power On Standby switching and the programming of power up segue
9. nces for the power amplifiers as well as level settings and the muting of individual channels or channel groups In the RCM 26 all parameters can be controlled in real time as well as stored in user memories from which they can be retrieved and reloaded subsequently e linear 24 Bit AD DA converters Sigma Delta 128 x oversampling e dynamic range gt 16 dB e 96 kHz sample rate 48 kHz optional e THD N lt 0 005 e 2 DSPs 150 MHz 300 MIPS computing power e 48 Bit double precision algorithms DSP H Speake Impedance y Protocol BAHIA Aaa STE Ars A OVER LEVEL ouium CONTROL HAHNEL Ei otra ER HE LF Li 00 6 LJ a OUT A u a UNNUR E DSP Functions X Over FIR Filters Master EQ Channel EQ Linkwitz Riley Butterworth Bessel zero latency processing linear phase x over Master Delay 2 ms 2000 ms per channel Channel Delay speaker alignment Dynamics compressor limiter per channel Protection advanced digital voice coil protection algorithms Misc u FIR Filters Althoush FIR filters require a massive amount of processing and are highly com plex they are realized in the RCM 26 in addi tion to the classical filtering and signal pro cessing functions Available are linear phase FIR filters and Zero latency FIR filters which add no further latency to the time signals require to pass through the device Users can create thei
10. nds of both mobile applications and pro audio fixed and parallel dual as well and naturally a Ground Lift switch installations n S q 2 E E E24 O O A f HANNEL B i CHANNEL A af oo BRIDGED amp ing s EN ES CHA NE j a MAINS IM CHB CH gt a Tie md ad 7 sl GACUADED ELI HR El HE si causes weme RATED Loana onus A y Li 1 1 mr E aa o The RCM 26 is a dual channel digital controller module for live sound PA and fixed installation It offers all conventional signal processing functions such as parametric equalizers crossovers delays compres sors and limiters It also makes available linear phase FIR filters zero latency FIR filters and digital loudspeaker protection algorithms to permit the dynamic range of the amplifier to be exploited to the full potential In addition to the electronically balanced analogue inputs digital inputs in AES3 AES EBU format are on board Using the CAN bus networks of up to 250 power amplifiers can be realized Additional interfaces include the RS 232 interface for media control and the Control Port with freely programmable control inputs and outputs GPIO Despite its compact dimensions the RCM 26 is unmatched in terms of its capabilities and audio per formance The IRIS Net Remote Control Module REM 26 extends the functionality of PowerH power ampli fiers by providing e remote s
11. nications Inc Art Nr D161156 Printed in Germany FS W HSE 6000 03 06 Japan EVI Audio Japan Ltd 9 3 8 Funabashi Setagaya Ku Tokyo Japan 156 0055 Phone 81 3 5316 5020 Fax 81 3 5316 5031 Hong Kong Telex EVI Audio HK Ltd Unit 5 1 F Topsail Plaza 11 On Shum Street Shek Mun Shatin HK Phone 852 2351 3628 Fax 852 2351 3329 China Telex EVI Audio Shanghai Ltd Room 2210 2215 Tower B Far East International Plaza No 317 Xianxia Road Shanghai China PC 200051 Phone 86 21 6235 1677 Fax 86 21 6235 1676
12. on of high perform ance power amplifiers Their innovative three stage Grounded Bridge Class H topology with its floating switching power supply offers very high and stable output power very high efficiency an extremely high level in terms of audio performance and extreme lightness They are therefore the ideal drivers for professional touring and high end concert sound as well as pro sound applica tions Through the use of IRIS Net compatible remote control modules they also offer extensive remote supervision and con trol functions as well as a universal two channel digital controller including ultra precise FIR filtering and digital loudspeaker protec tion algorithms 2 x 2 500 W 40 2x 1 450 W 40 2x3 500W 20 T 2 x 1 900 W 20 2 HE 14 5 kg 2 HE 14 2 kg ke Dynacord power amplifiers are known for their absolute reliability under the most arduous of conditions on the road In addition to the legendary manufacturing quality that comes with the Made in Germany label the comprehensive set of protective circuits plays an important role here an integrated micro controller co ordinates proven protections against short circuit HF or DC at the output back EMF overheating and open circuit opera tion the power up current limitation and dynamic audio limiters as well as making additional new and highly intelligent protective functions possible for example the temperature in the power amplifiers is monitored at no fewer than six di
13. r own linear phase brick wall X overs and edit them in real time Magnitude 6 filters per channel PEQ lo shelf hi shelf hi pass lo pass selectable 6 filters per channel PEQ lo shelf hi shelf hi pass lo pass all pass selectable input routing level mute polarity sine and noise generators VU meter FIR Filter Phase Load Filter Coefficients Generate Filter FREQUENCY LOADED FILE Ei Programme E vi ad MAIS gt Original frequency response of monitors on stage gt Zero latency FIR equalization gt Potential FEEDBACK frequencies Fagnltude ROM FIR ZPE Chi Unequal lead Uedae and Zero Latem in Saw Be STAN M ii For Dynacord loudspeaker cabinets measurements of the fre quency and phase response are already provided in the IRIS Net This data can be displayed and merged in IRIS Net together with the filter crossover and delay settings The superposition then shows the acoustical frequency response of gt Linear frequency response of the pre linearized monitors on stage E Ian J A b TT ba Jh UI Ld TT TT Ti a Il B the loudspeaker cabinet The IRIS Net module RCM 28 under development offers instead of the AES3 digital input a CobraNet interface making it possible to integrate PowerH power amplifiers into CobraNet networks E TECHNICAL SPECIFICATIONS H2500 H5000 Load Impedance 20 40 80 20 40 80 Maximum Midband Output Power
14. upervision and remote control e AES3 AES EBU digital inputs e digital signal processing e advanced loudspeaker protection algorithms e system integration and networking m JRIS Net is ted software platform for all remote controllable devices and systems from Telex Communications Inc It allows complete audio systems with a multitude of identical or different devices to be configured supervised and controlled centrally from a single user interface IRIS Net supports Ethernet CobraNet CAN bus and USB and is open for further implementations in the future IRIS Net makes possible the comprehensive supervision of power amplifiers and loudspeakers inclu ding their cables and interfaces System statuses are being polled permanently with errors detected and reported instantaneously and all problems and other events logged along with the date and time of their occurrence The totality of parameters and settings of all system components can be stored and reloaded at the push of a button Total Recall Depending upon the application users can design their own control panels program automatic sequences and form devi ce and function groups IRIS Net has been used for several years now in hun dreds of audio installations and systems and has de monstrated its merits in a very wide variety of applica tions Since the year 2002 IRIS Net has been the plat form for the EV Precision series power amplifiers and si
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