Dolby Laboratories Digital Loudspeaker User's Manual
Contents
1. G a oe All mo 2 p i CHANNELS 9 16 IN ouT AES 5 8 O a oa all ea 1A E As 1 2 AES EBU 3B ee PO TERM CHANNELS 1 8 IN OUT AES 1 4 hQ 1B 2 INPUT 3 NETWORK c ACT i D a O FLOAT HA N K O 3A LINK 30 A D ea 5 C Y Lil rf J LIFT ag Il aw E T iE 2 oum 3 ae a O Dolby Lake Processor LP4D4 The entry level analog and digital enabled Lake Processor the LP4D4 is the next generation Lake Mesa Quad EQ It has two analog converter cards to provide four analog inputs and four analog outputs for EQ purposed signal processing Ir Te p er lt 7 a 2 i T CHANNELS 9 16 IN ouT AES 5 8 O Le ae T poai HIE ojo z o F A moa TeRM CH aE TRE AES 1 4 de h Zo Qe INPUT 7 a pee mim o ae 6 O Output 6 Output NEMORE LINK ACT alz i 759 O FLoar jas KO MP 1 0 TERN ec a LINK we ACT 3 C y La Le a lar 4 i cE i i 3B E T A gt Q Me nrae hO C HL LINK ACT 2 o 3 6 o 7 BN T Dolby Lake Processor LP8D8 The top of the line for Lake Mesa EQ processing the LP8D8 provides eight channels of2. LU DOLBy Dolby Lake Processor Plat B RA TE R la F Seg e Pe ieee Le te Firs au Tig Ly ai i fF i Eon al a ae oo Wk ret Loa a TA The Dolby Lake Processor offers a visionary approach to controlling and optimizing any loudspeaker system in any venue while simultaneously improving the sound quality The Dolby Lake Processor marks the next generation in The Lake Processor includes several advanced technologies digital loudspeaker control and equalization technology With for improving sound quality These include Raised Cosine unsurpassed audio quality and the most advanced loudspeaker Equalization the foundation underlying the revolutionary Ideal processing available it will instantly improve the sound of Graphic EQ and Lake Mesa EQ interfaces plus linear phase any system Effortless control is provided through wireless crossovers LimiterMax loudspeaker protection and Iso Float tablet software or the new patent pending front panel Portal Ground Isolation eterna ANE COM CTTtS Hate Four slots provide additional configurability for adding analog The basic platform offers complete native digital signal I O and other capabilities via expansion cards We offer the Lake processing functionality with support for up to four in by Processor in five preconfigured versions Converter cards can twelve out for loudspeaker applications and eight in by be easily added at any tim
3. INPUT OUTPUT SEO On iain 5 6 OUTPUT 7 10 Output En muno solias ode MP palo fen we INS A 3A ollas C G ma 20s DO LUE E act O J nee LT lt 5 a o 5 LINK ACT ce HE L ae 5 6 Output 7 10 Output 11 Lies ke zj Dolby Lake Processor LP4D12 The flagship Lake loudspeaker processor the LP4D12 takes the next step providing an ultimate loudspeaker management system The LP4D12 is capable of running up to four th ree way crossovers Upgrade Kits We developed the Dolby Lake Processor for maximum field flexibility Currently the following upgrade kits are available Quad D A Converter Upgrade KIT982 The Quad D A Converter kit allows you to upgrade your Dolby Lake Processor to include more analog output channels or reconfigure your analog I O on an as needed basis As an example multiple Quad D A kits can convert your digital only processor into a digital input twelve analog output unit Quad A D Converter Upgrade KIT983 The Quad A D Converter kit allows you to upgrade your Dolby Lake Processor to include more analog input channels or reconfigure your analog I O on an as needed basis For example this card can make your four by eight loudspeaker processor into an eight by eight Mesa EQ Front Panel Interface Dolby Lake Processor Operating Specifications Se i iil it iuit F INT TENA w oa oy x iw Ararat
4. T 1 Displays Four daylight readable custom LCD Portal displays 3 x 10 user configurable character displays per Portal 2 x 104 circular meter segments per Portal 16 mute and soft function buttons per Portal arrow keys and ME button for Portal control and parameter adjustment Audio Performance Conversion Resolution 24 bit Internal Sample Rate 96 kHz Internal Data Path 32 bit floating point System Propagation Delay lt 2 ms from any input to any output analog or digital Maximum Available Delay 2 s from any input to any output Sample Rate Converters Operating Sample Rates 44 1 kHz 48 kHz 88 1 kHz 96 kHz Resolution 24 bit THD Noise 0 00003 typical 20 Hz to 20 kHz unweighted Dynamic Range 140 dB typical 20 Hz to 20 kHz unweighted Back Panel Interface Analog I O Connectors XLR AES EBU I O Connectors DB 25 with selectable termination on pairs 1 and 2 S PDIF I O Connectors Toslink optical Word Clock Input BNC with selectable termination Ethernet Auto 10 100 Auto Uplink 2 RJ 45 1 EtherCon Power 3 pin IEC 2 fuses T 1 5A L 5 x 20mm Ethernet Auto 10 100 Auto Uplink 1 RJ 45 Mute Enable Button Enables muting of outputs and inputs via Portal mute buttons Digital to Analog Outputs Frequency Response 0 0 1 dB 3 Hz to 20 kHz THD Noise 0 00040 typical at 1 kHz 0 00056 typical 20 Hz to 20 kHz unweighted Dynamic Range 113 dB typical 20 Hz to 20 kHz unweighted Output Impedance 50
5. 0 Maximum Output Level 21 dBu Crosstalk 100 dB 2 Hz to 40 kHz Analog to Digital Inputs Frequency Response 0 0 2 dB 2 Hz to 20 kHz THD Noise 0 00022 typical at 1 kHz 0 00033 typical 20 Hz to 20 kHz unweighted at 21 dBu headroom setting Dynamic Range 116 dB typical 20 Hz to 20 kHz unweighted at 21 dBu headroom setting Input Impedance 20 kQ balanced 10 kQ unbalanced Maximum Input Level 26 dBu Input Sensitivity Settings for Digital Full Scale 10 dBu 16 dBu 21 dBu 26 dBu Common Mode Rejection 65 dB 20 Hz to 20 kHz 75 dB typical at 1 kHz 70 dB typical at 20 kHz Crosstalk 100 dB 2 Hz to 40 kHz Combined A D and D A THD Noise 0 00050 typical at 1 kHz 0 00063 typical 20 Hz to 20 kHz unweighted Dynamic Range 113 dB typical 20 Hz to 20 kHz unweighted Meter Button Toggles through input and output meter displays Menu Button Provides a menu driven interface for full function front panel control AES EBU I O and S PDIF I O Supported Resolutions Up to 24 bit Supported Sample Rates 44 1 kHz 48 kHz 88 1 kHz 96 kHz Power Requirements 100 240 VAC 10 120 W maximum Dimensions and Weight 2 RU rackmount 8 74 x 48 26 x 35 cm 3 44 x 19 x 13 78 inches net 9 kg 20 lb Regulatory Notices North America complies with limits for a Class A digital device per Part 15 of FCC rules and Industry Canada ICES 003 specifications UL Listed for the US and Canada Europe complies wit
6. Laboratories Inc All rights reserved S08 16957 19498 Dolby Laboratories Inc 100 Potrero Avenue San Francisco CA 94103 4813 T 415 558 0200 F 415 863 1373 233 Castlereagh Street 16th Floor Sydney NSW 2000 Australia T 61 2 9101 7900 F 61 2 9101 7800 dolby com livesound
7. analog inputs and outputs This fully configured processor offers the ultimate surround sound loudspeaker management solution DOLBY LAKE PROCESSOR ao INPUT 3 z 5 MADE IN U S A BY DOLBY LABORATORIES INC 1 TM 2A 2 p T CHanneLs 9 16 IN ouT AES 5 8 lt O U Pea ZA a a e s1 HANNELS 1 8 IN ouT AES 1 4 T AES 1 4 T a AS SRDIFORT cai 3 A Jo 2 Output 5 6 OUTPUT 7 8 hi aro 0 ae MP ie fe we iN S i O O O 3A LINK A z GND 2 MODEI i H LIFT A 7 4 A 4B ce T Do ae ane Enne als C I 20 3 5 6 o0 7 8 il Dolby Lake Processor LP4D8 The LP4D8 fulfills our most frequent customer request additional inputs and outputs It brings a four by eight configuration to Lake loudspeaker processing and it is capable of running four two way crossovers for monitor applications fi T A waosesane i T T ae ae AES 1 2 ARA a MION TERM CH s 1 8 N ou HANNELS 1 8 IN OUT AES 1 4 3 A Ar Q 2 2
8. e in the shop or in the field to meet eight out for EQ applications The signal processing can also changing needs be changed to provide an EQ four by four together with a loudspeaker two by six configuration Dolby Lake Processor Configurations Rear Panel Views Shown here are the five factory configurations and two expansion cards The Lake Processor can be easily upgraded or reconfigured to meet specific requirements 4 C z DOLBY LAKE PROCESSOR C a MADE IN U S A BY DOLBY LABORATORIES INC 2A z X CHANNELS 9 16 IN ouT AES 5 8 le oo NE as AES EBU de 2 S MO TERM CH s 1 8 IN ouT AES 1 4 n 1B ver TD gA e NETWORK LINK ACT ap 750 z 10 10 p O MP Di ERM WC IN a ES gt unk O MODE C O act j erty LIFT fags ee A O LINK ACT Cor Dolby Lake Processor LPD The LPD provides the foundation of the Dolby Lake processing system offering native digital I O in AES EBU format It also has a S PDIF input and output for interfacing with consumer devices Four card slots can incorporate analog converters
9. h requirements of Low Voltage Directory 73 23 EEC and EMC Directive 89 336 EEC Carries CE marking accordingly Warranty One year limited parts and labor see disclaimer Specifications subject to change without notice Disclaimer of Warranties Equipment manufactured by Dolby Laboratories is warranted against defects in materials and workmanship for a period of one year from the date of purchase There are no other express and implied warranties and no warranty of merchantability or fitness for a particular purpose or of noninfringement of third party rights including but not limited to copyright and patent rights Limitation of Liability Itis understood and agreed that Dolby Laboratories liability whether in contract in tort under any warranty in negligence or otherwise shall not exceed the cost of repair or replacement of the defective components or accused infringing devices and under no circumstances shall Dolby Laboratories be liable for incidental special direct indirect or consequential damages including but not limited to damage to software or recorded audio or visual material cost of defense or loss of use revenue or profit even if Dolby Laboratories or its agents have been advised orally or in writing of the possibility of such damages Dolby and the double D symbol are registered trademarks of Dolby Laboratories All other trademarks remain the property of their re spective owners 2008 Dolby
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