PWR-16 - User Manual
Contents
1. 10 ANNIN 2 INSTALLATION AND CONNECTIVITY Speaker outputs Control Audio inputs and mode switches AC Mains rBTL BTL BTL _ BTL olelelejejejejejejejejejejejeie 3 5V Thgger A ciule cale cuisle cH7 chol chile chl chish 23 5678 High CH1 CH2 CH3 CH4 CHS CH6 CH7 CH8 o SEWE JTL SEW JeTL SEWE JBT SEWE JeTL SEM JBT SEME JBTL SEWE JeTL SEM BTL CH9 ICH10 CH11 CH12 CH13 CH14 CH1SICHi6 4 4 4 4 4 4 ease on nal Externalfg CH2 CH4 CH6 CH8 CH10 CH12 CH14 CH16 eee a a a a a M ENS 123 8910 4567 Zonel Zone2 Zone3 Zone4 ZoneS Zone6 Zone Zones The PWR 16 amplifier should be mounted in an audio video rack or on a solid flat surface Be sure to keep a minimum of 2 inches of clearance on each side of the case to ensure proper air ventilation for the two fans mounted in the side panels The case also includes removable rack ears and removable feet for proper mounting 2 1 POWER The PWR 16 accepts any voltage from 85 to 264 VAC at cycle rates from 45 to 65 Hz AC power is connected via a IEC 320 C13 power connector on the rear panel Power is turned on and off with the AC mains switch on the rear panel 2 2 SIGNAL The PWR 16 has 16 amplification channels grouped into eight zones By convention each zone is spoken of as a stereo pair left and right channels but in actual usage the channels can be used in any manner suited to the appl2. 44 x 424 x 314 mm 1RU height width 482 mm with rack ears 7 7 bs 3 5 kg 1 Check the forums on miniDSP com to see if this issue has already been raised and a solution or solutions provided 2 Contact miniDSP via the support portal at minidsp desk com with a The product information b Aclear explanation of the symptoms you are seeing c Adescription of the troubleshooting steps you performed and the results obtained miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 18
3. by an authorized dealer distributor When replacement parts are required please ensure that the dealer distributor only uses replacement parts specified by the manufacturer The use of unauthorized replacement parts may result in injury and or damage through fire or electric shock or other electricity related hazards Safety Check Upon completion of any service or repairs to this product ask the dealer distributor to perform safety checks to determine that the amplifier is in proper operating condition Read the information for use user manual When shipping the product always use the original shipping carton and packing materials For maximum protection repack the unit as it was originally packed at the factory Environments Use this product only in E1 E2 E3 or E4 environments according to EN55103 2 Electromagnetic compatibility Product family standard for audio video and audio visual and entertainment lighting control apparatus for professional use Part 2 Immunity Ventilation and heat sink The heat sink and ventliation slots are provided to ensure reliable operation of the Amplifier Unit and to protect it from overheating The heat sink and ventilation slots must not be blocked or covered This product should not be installed unless proper ventilation is provided and manufacturer s instructions have been adhered to Water And Moisture Do not use this product near water for example in damp rooms or near a swim
4. 65 7th edition 2013 07 24 CAN CSA C22 2 No 60065 03 1st Edition A1 2006 A2 2012 IEC 60065 2001 Seventh Edition A1 2005 A2 2010 EN 60065 2002 A1 2006 A11 2008 A2 2010 A12 2011 EMC standards covered are EN 55013 2001 A1 2003 A2 2006 CISPR 13 2001 A1 2003 A2 2006 EN 61000 3 2 2006 A1 2009 A2 2009 IEC 61000 3 2 2005 A1 2009 A2 2009 EN 61000 3 3 2013 IEC 61000 3 3 2013 EN 55020 2007 A11 2011 CISPR 20 2006 IEC 61000 4 2 2008 IEC 61000 4 4 2012 FCC 47 CFR Part 15 Subpart B ICES 003 Issue 5 2012 ANSI C63 4 2009 A NOTE ON THIS MANUAL This User Manual is designed for reading in both print and on the computer If printing the manual please print double sided The embedded page size is 8 2 x 11 Printing on A4 paper will result in a slightly reduced size For reading on the computer we have included hyperlinked cross references throughout the manual In addition a table of contents is embedded in the PDF file Displaying this table of contents will make navigation much easier e In Adobe Reader on Windows click on the bookmarks icon at the left The table of contents will appear on the left and can be unfolded at each level by clicking on the icons e In Preview on the Mac click on the View menu and select Table of Contents The table of contents will appear on the left and can be unfolded at each level by clicking on the triangle icons miniD
5. IN DSP PWR 16 16 CHANNEL MULTIZONE AUDIO POWER AMPLIFIER User Manual miniDSP Ltd Hong Kong www minids com Features and specifications subject to change without prior notice 1 Revision history Revision Description Date Updates for control switches 7 October 2015 Corrected Phoenix connections 7 October 2015 miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice nin TABLE OF CONTENTS important Informati OTid nanaii E ER E ened sans E RAEN ENE EAA ERENER EET EAER 4 DEME VV N eaa E E E E 4 WN POEUN aa EO E OEN E O O AEO OOE EA A EAEE ES 4 POG Class BENE oaa AAAA AAAA E 4 SA EMCE e E EEE E 5 A Noteon this Manual scnasenseasenaseusansseusaeasamasanaeasanasenanenaasusassansiaaiasieanelgaineteainane ose ocur ERREEN EREEREER EEEE ETSER E KERRE EEEE EERENE E 5 SAE I O e a EE E 6 T Produc TOV VIEN eE EE EE EEEE E 9 1 1 Key Features and Benefits tera case cca tateecescentencn ace tacaecteatetatonsen AENDE O NPU PE ENCINO ene N ENEs nni Oi IriS 9 1 2 Maximum power Ca Da DINOS sceicrenceve sare ceaduanyeiwbadeudnsuibnseivinbenebensnssnyeneetalebiyabeeeaseusbiasbchaweseeiabbdseeieeiuenoet 9 1 3 FY DICall GO DIICA IONS a saccancsantaaneanccanteacwannadcbsacaiaannadacaannaanmastaanadmeasaeusaeaporiborieseneaieanseanseiaaseaseaoTeaedeeaneees 10 1 3 1 Home TAC AUP I saasciaasaanasnaaannaanaaenaannannancoesnesaneaanoasciancanbanadancsesouevesetedeessceaei ese douneeintedeosdeeessoea
6. SP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice nin SAFETY INSTRUCTIONS Read all information for installation connection and usage Keep this user manual in a safe place during the lifetime of the product The user manual forms an integral part of the product Reselling of the product is only possible if the user manual is available Any changes made to the product have to be documented in writing and passed on to the buyer in the event of resale Heed all warnings Follow all instructions Do not use this product near water for example in damp rooms or near a swimming pool Clean only with a dry cloth Do not cover the heat sink Install in accordance with the user manual Do not install near any heat sources such as radiators heat registers stoves or other apparatus that produce heat Protect the power cord from being walked on pinched or damaged in any way Pay particular attention to plugs and the point where they exit from the Amplifier Unit e The product may only be used in accordance with the information provided in the user manual Before and during the usage of the amplifier please ensure that all recommendations especially the safety recommendations as detailed in the user manual are adhered to The Amplifier Unit is designed for the amplification of pulsed audio signals and the Amplifier Unit should only be connected to speakers with average impedance that
7. connection is made from one of the amplifier input channels as shown in the diagram below To use signal sense switching e Set the 3 5V Trigger switch to Off e Set the External Signal Sense switch to On e Leave Pin 3 12V Trigger IN disconnected e Leave Pin 6 3 5V Trigger IN disconnected e Connect the sense signal to Pin 1 Signal Sense IN with Pin 2 Signal Sense Ground as ground reference 3 5V Trigger Disabl Left channel input rae eee im _ o S a 45678 Zones SE BTL Right channel input sl e ee Senge 12345678910 7one1 Y splitter miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 15 NNN 3 2 3 3 12V Trigger The PWR 16 can be turned on with an external 12V trigger signal This is applied to Pin 3 with Pin 5 used as ground reference The amplifier will be turned on when the trigger signal is at 12V and off when it is at O V Pin 4 is hard wired to Pin 3 and is intended for use as a 12V trigger output To use an external 12V trigger e Set the 3 5V Trigger switch to Off e Set the External Signal Sense switch to Off e Leave Pin 6 3 5V Trigger IN disconnected e Connect the trigger signal to Pin 3 12V Trigger IN using Pin 5 Logic Trigger ground as ground reference 3 5V Trigger noe ae M Zones External ae plead Signa ejojojojojojojojojo 12345678910 12V trigger signal to external equipment x NC 12V trigger
8. eep in mind and to not exceed the total power output of the amplifier For example in an multichannel active system some drivers tweeter and midrange will use substantially less power than the woofers miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 9 SN 1 3 TYPICAL APPLICATIONS 1 3 1 Home theater The figure below shows a typical home theater application In this system the DDRC 88A is used to perform Dirac Live room correction and the PWR 16 is used for amplification In the scenario shown each speaker can be driven by one channel 4 ohm load single ended mode or by a zone in BTL mode minimum load 6 ohms Please observe the maximum power capability across all channels A V source TV Monitor Projector HDMI video DDRC 88A Powered Analog audio 7 1 subwoofer PWR 16 Loudspeakers J 1 3 2 Multizone audio The figure below shows a multi zone audio connection as described in our app note Multi zone DRC with the DDRC 88A Dirac Live processor In the case where more than one speaker is driven from each input channel use Y splitters on the PWR 16 inputs to utilize more channels Audio source Multizone controller DDRC 88A PWR 16 4 x stereo audio zones miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice
9. esired operation Warning This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Notice Shielded interface cable must be used in order to comply with emission limits miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 4 nin Notice Changes or modification not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment SAFETY amp EMC STANDARDS Safety amp EMC standards covered UL 600
10. hould use a mounting accessory recommended by the manufacturer Connecting When you connect the Amplifier Unit to other equipment turn off the power and unplug all of the equipment from the supply source Failure to do so may cause an electric shock and serious personal injury Read the user s manual of the other equipment carefully and follow the instructions when making the connections Sound Volume Reduce the volume to minimum before you turn on the amplifier to prevent sudden high levels of noise which may cause hearing or speaker damage Output connectors WARNING Output connectors marked with the lightning flashes indicate high voltages that are potentially life threatening Wiring to these terminals requires installation by an instructed person and the use of ready made leads or cords Custom wiring should only be carried out by qualified personnel To prevent electric shock do not operate the product with any of the conductor portion of the speaker wire exposed NOTE For reasons of safety and performance use only high quality fully insulated speaker cables of stranded copper wire Use the largest wire size that is economically and physically practical and make sure the cables are no longer than necessary Precautions when connecting to MAINS IN When mounting or connecting the product always disconnect it from mains Only connect the product to an appropriate AC circuit and outlet according to the requirements indicated o
11. ication Each zone can be used as two independent channels or switched into BTL mode which delivers twice the power into a single loudspeaker The setting for each zone is independent allowing a large number of different configurations 2 2 1 Inputs Inputs are connected directly to the relevant RCA jack on the rear panel Caution Please be sure to turn the amplifier off before you make changes to the input connections 2 2 2 Outputs Speaker outputs are provided via a set of eight removable 4 way Phoenix terminal blocks Each terminal block connects one zone These terminal blocks accept bare wire terminations To make connections remove a terminal block or blocks from the rear of the amplifier Connect individual wires from the speaker cables to each set of screw terminals as shown below After all connections to the terminal block are secure firmly re insert the terminal blocks Caution Please be sure to turn the amplifier off before you make changes to the loudspeaker connections miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 11 Ni 2 2 3 Single ended mode In single ended mode both channels of the zone are independent and can drive up to 80 Watts peak power into a nominal 4 ohm minimum loudspeaker The mode switch must be set to the SE position as illustrated in the following diagram Switch sE To left speaker Left channel input s I D To right
12. indicates an overload state in the amplifier If this LED lights yellow it indicates that the amplifier has shut down because of excessive current draw on one or more outputs This can occur in the event of a short circuit on the outputs or excessive current draw from the speaker load If this LED lights red it indicates that the power supply has either exceeded its thermal limits or there has been excessive current draw from the power supply The power supply will limit its output power to safe limits but the amplifier will not shut down Thermal protection LED The PROTECT LED indicates that one or more zones has gone into thermal protection mode The temperature of each zone is continuously monitored If a zone reaches its thermal limit 105 C then that zone will shut down and go into soft start mode The thermal protection LED will turn red at this time Other zones that are within thermal limits will continue to be active When the temperature has dropped below the thermal threshold the respective zone s will resume normal operation miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 13 nnn 3 2 CONTROLI O The rear panel contains a set of control switches and I O terminals Disabl 3 5V Trigger ISabdie Off ennor Maalaala iy 12345678 High Zones External Off signal ejojojojojojojojojo Sense On 12345678910 3 2 1 Zone enable disable Each zone can be di
13. inidsp desk com DISCLAIMER WARNING miniDSP cannot be held responsible for any damage that may result from the improper use or incorrect configuration of this product Please read this manual carefully to ensure that you fully understand how to operate and use this product as incorrect use or use beyond the parameters and ways recommended in this manual have the potential to cause damage to your audio system Please also note that many of the questions we receive at the technical support department are already answered in this User Manual and in the online application notes on the miniDSP com website So please take the time to carefully read this user manual and the online technical documentation Thank you for your understanding WARRANTY TERMS miniDSP Ltd warrants this product to be free from defects in materials and workmanship for a period of one year from the invoice date Our warranty does not cover failure of the product due to incorrect connection or installation improper or undocumented use unauthorized servicing modification or alteration of the unit in any way or any usage outside of that recommended in this manual If in doubt contact miniDSP prior to use FCC CLASS B STATEMENT This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions e This device may not cause harmful interference e This device must accept any interference received including interference that may cause und
14. is an extremely flexible amplifier that can be used in many configurations A comprehensive set of control and protection features make the amplifier extremely flexible and robust Remote enable signal detection and individual disabling of zones ensure minimum power consumption 1 1 KEY FEATURES AND BENEFITS e Ultra compact 1U rack enclosure e Extremely low weight e 400 Watts of audiophile sound quality in eight separate zones for exceptional installation convenience e Amplification by ICEpower e Low power consumption and heat dissipation e Comprehensive protection keeps the music playing and your quality costs down e Removable rack ears and feet e High construction quality for professional use 1 2 MAXIMUM POWER CAPABILITIES The PWR 16 is designed for use in applications where individual amplification channels are capable of output power well in excess of the total power divided by the number of channels This includes applications such as multizone applications where not all zones are typically being used simultaneously and immersive audio applications where only a subset of speakers are playing substantial output at one time For example the PWR 16 has a total output power capability of 400 Watts Dividing this by 16 results in 25 Watts per channel However each channel of the PWR 16 is capable of 80 Watts of power output The PWR 16 can be used in applications other than those mentioned above However it is important to k
15. is not lower than the impedances specified in the User s Manual Do not place the product on an unstable cart stand tripod bracket or table The device may fall causing serious injury and serious damage to the device itself The Amplifier Unit can only be disconnected from the power supply by removing the plug which must be freely accessible at all times Unplug this Amplifier Unit during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Damage that requires service Unplug the Amplifier Unit from the mains supply and refer to your dealer distributor or other authorized repair workshop Servicing is required when miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 1 The power supply cord or plug has been damaged 2 Liquid has been spilled or objects have fallen into the amplifier 3 The amplifier has been exposed to rain or moisture 4 The amplifier has been dropped or suffered damage in any way 5 The amplifier exhibits a distinct change from its normal function or performance nnn Servicing Do not attempt to service this product yourself As opening or removing covers may expose you to dangerous voltage or other hazards the amplifier may only be opened by qualified personnel Please refer to your dealer distributor Servicing and Replacement Parts All service and repair work must be carried out
16. ming pool Cleaning Unplug the Amplifier Unit from the wall outlet before cleaning Do not use liquid or aerosol cleaners Power cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon them or against them paying particular attention to cords and plugs and the point where they exit from the Amplifier Unit Lightning For added protection of the product during lightning storms or when it is left unattended and unused for long periods of time unplug it from the wall outlet This will prevent damage to the product due to lightning and power line surges Disconnection from the mains power supply can only be achieved by removing the plug from the mains socket and by external disconnection of all poles from the mains miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 7 nin Interference of external objects and or liquids with the appliance Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the amplifier Accessories Do not place this product on an unstable cart stand tripod bracket or table The product may fall causing serious injury and serious damage to the product Any mounting of the product should follow the manufacturer s instructions and s
17. n the rating plate If a power cut occurs while the amplifier is switched on it will restart automatically once the power supply has been restored All settings prior to the loss of power will be maintained IMPORTANT Always connect the Product to mains through the MAINS IN connector on the Amplifier Unit IMPORTANT Always use ready made mains cables with original connectors when connecting the product to mains IMPORTANT When disconnecting the Product from the mains always disconnect at the mains end first before disconnecting the connector at the Product end DO NOT REMOVE MAINS CONNECTOR GROUND IT IS ILLEGAL AND DANGEROUS miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 8 nin 1 PRODUCT OVERVIEW The miniDSP PWR 16 is a 400 Watt ultra compact highly efficient audio power amplifier intended for multizone custom installations in modern homes hotels restaurants bars theatres auditoriums amusement parks shopping malls etc This amplifier is one of the lightest and most compact of its kind and excels with its impressive power to size ratio and its incredible power efficiency The PWR 16 features 16 channels of amplification by ICEpower in eight zones Each amplification channel can deliver peak power of 80W into a 4 ohm speaker The two channels in a zone can be switched to BTL bridge tied load mode to deliver peak power of 160W into an 8 ohm speaker The result
18. not the same as Pin 4 Pin 4 is the same as the input on Pin 3 whereas Pin 9 reflects the amplifier s state regardless of how it is turned on For example it can be used to set one PWR 16 as the master unit for multiple units miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 17 nin 4 ADDITIONAL INFORMATION 4 1 SPECIFICATIONS Channel count Total power output Total continuous power output Per channel peak power output SE mode Per channel peak power output BTL mode THD N Dynamic range Frequency response Input sensitivity Input impedance Certification AC mains supply Fuse rating Dimensions H x W x D Weight 4 2 OBTAINING SUPPORT 16 single ended channels or 8 BTL channels or any combination of SE and BTL 400 Watts Up to 80 seconds 80 Watts 4 ohms SE continuous long term power output across all channels without thermal shutdown Ta 25 C Up to five channels driven 80W per channel All 16 channels driven 25W per channel 4 ohms 0 1 THD N 20Hz lt f lt 20kHz up to 80 seconds Two zones driven 160W per zone All zones driven 50W per zone 8 ohms 0 1 THD N 20Hz lt f lt 20kHz up to 80 seconds 0 003 40 SE f 100Hz Po 1W 110dBA SE 115dBA BTL 0 4 dB 10Hz 20kHz all loads 0 92 VRMS for 80W output in SE mode 160W output in BTL mode 47 KQ FCC CE IEC PSE C TICK 85 264 V AC 45 65 Hz 6 3A
19. poees 10 1 3 2 Mull ZONE aud OnE 10 2 Installation and CONNECTIVITY cecceecceccecceeccecceucceeceneceucesecceeeeuceseeeecceeeueeeecceeeeeeeeceeeeueteeceeeeeueteeseeeegnes 11 2 1 OWEN e aE AOE OEO A O AAO EAA E E E E SS 11 2 2 SI EOE AEE EE EAE AAAA AEAEE EEE AE EAE NAE ATE VIR NEN DENNEN ETIN EEN R 11 2 2 1 APU e E ees 11 2 2 2 EIS EAE EAE AEEA AAE A AAEE AAEE E ETE EE P E D sce E EEE E E ETEEN 11 2 2 3 SiN SCC E sates paar vas son sa poeves un evenosusesnsyenseenunoseneserenei 12 2 2 4 Be MNO ace tte E arc eee arcs esc te sn sone nae nanos tsdea aanoaanoaateneieaaraiae 12 JAMS 12 100 ioug s 9 8 6119 e EE E E E ce EE ere eee eee eres 13 3 1 Se dlc LED E 13 3 2 CONF O EEE me eee ee ener ter een ret eer rere 14 3 2 1 Zone enable disable c cceceseccscceccesecscccsccsccecccsccceeeccesccsseeseeeceeeceesseeceeeceseeeceueceseeeeeuseeeseees 14 3 2 2 C ntrol VO ConNectO aan ers ee ese snare saan sosasomsasacosasanesadesaancaoas 14 3 2 3 Tane Ol Ce PWE O AAAA RAAR 15 3 2 4 A OU OUI S a E EEEE T E TE 17 3 2 5 Dolydd LZ OU TNS Sie e E E E E E 17 4 Additonal informal 2 eee ee eee eee en oe N 18 4 1 PEE eere E een NRE eRe 18 4 2 Die ISS UDINE N EE ETE E E TAE 18 miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 3 nnn IMPORTANT INFORMATION Please read the following information before use In case of any questions please contact miniDSP via the support portal at m
20. sabled by moving the corresponding DIP switch to the down position It is recommended that zones that are not in use are disabled to reduce power consumption and heat dissipation 3 2 2 Control I O connector The 10 pin Phoenix connector on the rear panel carries a comprehensive set of control signal inputs and outputs The pinout is shown in Table 1 Pin Type Name Input Signal Sense IN Ground Signal Sense Ground Input 12V Trigger IN Output 12V Trigger OUT Ground Logic Trigger Ground Input 3 5V Trigger IN Output Thermal Overload Output Overcurrent Monitor Output Amplifier On 10 Ground Status Ground Table 1 Control I O pins W COIN D O B W NI e miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 14 Ni 3 2 3 Turning on the PWR 16 3 2 3 1 Power on off switch The power switch on the rear panel turns power to the complete amplifier on and off For this switch to always put the amplifier into normal operation mode e Set the 3 5V Trigger switch to High e Set the External Signal Sense switch to Off e Leave Pin 3 12V Trigger IN disconnected e Leave Pin 6 3 5V Trigger IN disconnected 3 5V Trigger ne ie Zones External oe ele Signal ejojojojojojojojojo 12345678910 X X NC NC 3 2 3 2 Signal Sense The PWR 16 can be turned on by sensing an audio signal The signal sense input is connected to Pin 1 with Pin 2 used as ground reference Typically a Y
21. signal from external controller Ground miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 16 nin 3 2 3 4 3 5V Trigger The PWR 16 can be turned on with an external logic level trigger signal of 3 to 5 V This is applied to Pin 6 with Pin 5 used as ground reference The amplifier will be turned on when the trigger signal is high at 3 to 5 V and off when it is atO V To use an external logic level trigger e Set the 3 5V Trigger switch to Off e Set the External Signal Sense switch to Off e Leave Pin 3 12V Trigger IN disconnected e Connect the logic level trigger signal to Pin 6 3 5V Trigger IN using Pin 5 Logic Trigger ground as ground reference 3 5 V Trigger Disable Off entice lalallala a i 12345678 High Zones External Off signa ejojojojojojojojojo Sense Lion 12345678910 x NC _ Logic level trigger signal from external controller Ground 3 2 4 Status outputs Pins 7 and 8 provide logic level status output of thermal overload and overcurrent detected These outputs reflect the status of the front panel LEDs 3 2 5 Delayed 12V output trigger The PWR 16 amplifier has a 12 V output trigger signal which can turn be used to turn on other amplifiers or electronics Pin 9 Amplifer On goes high about a second after the amplifier is turned on and returns low when the amplifier goes into standby mode Note that this pin is
22. speaker SEINE BTL Fa E aaps Right channel input CHIT CH Input connection Speaker connection 2 2 4 BTL mode In BTL bridge tied load mode both channels in a zone are used to drive one loudspeaker Combined the two channels in a zone can deliver up to 160 Watts peak power into a nominal loudspeaker load of 6 to 8 ohms The mode switch must be set to the BTL position as illustrated in the following diagram The input signal is connected to the odd numbered input only The output signal to the loudspeaker is taken from the hot outputs of both amplification channels as illustrated Switch in BTL Channel input Zone1 position To speaker cH e aN SEC E BTL No connection CH2 eo 1 l I CH1 CH2 Input connection Speaker connection 1 The PWR 16 is stable into a 4 ohm load when in BTL mode However an impedance this low places additional thermal stress on the amplifier in other words it will heat up more quickly We therefore recommend that a minimum 6 ohm load be used for zones in BTL mode miniDSP Ltd Hong Kong www minidsp com Features and specifications subject to change without prior notice 12 nnn 3 STATUS AND CONTROL 3 1 STATUS LEDS PROTECT Power LED The POWER LED indicates that the AC mains power is connected to the amplifier and that the power switch is turned on This LED is red if the amplifier is in standby mode and green when it is powered on Over current clipping LED The CLIP LED
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