LCAi220 Owners Manual
Contents
1. Power LED Selectable highpass for local speakers Fault LED Input level adjustment FSA Fuse TroubleShooting Guide Problem Gm Sn No Power e Local power supply is off or disconnected e Central power supply is off or disconnected No Sound e Speaker wires are disconnected e Volume is adjusted too low Source is off disconnected No Audio From Local e Source not configured correctly Zone e Connections to LCAi220 are not made correctly No Audio in Bypass Mode Central music system is not on configured correctly e Connections to LCAi220 are not made correctly Per Second Every Two Seconds Local zone e Gain on the LCAi220 is too high distortion at higher volume is up to high on the volumes local source Fault Light is On e DC detected at speaker leads Fault Light Flashes Once e Short circuit detected at speaker leads Fault Light Flashes Once Thermal the amplifier has overheated e Check connect local power supply e Check connect central power supply and rear connection to LCAi220 e Connect speaker wires e Adjust source volume e Check source connections and power status local source all connections igure central audio system connections wiring and ions wiring and connections ake Sure load to the amplifier is 4Q or igher heck all wiring and connections e Make Sure load to the amplifier is 4Q or higher e Lower gains volume levels on the LCAi220 a2. Strip 4 inch 7mm of insulation off of the end of the wires Connect the wires to the removable connector plugs using a small flathead screwdriver Figure 3 The plugs are labeled and color coded to simplify installation the red connector is for the speaker wires coming from the amplifier and the black is for the wires going out to the speakers If using the subwoofer output connect the to the tip of the RCA connect the to the shield of the RCA Install the connectors to the LCAi220 Figure 4 MH 0 u r r Figure 3 Installing Rear Connections cont 5 Install the LCAi220 into the junction box bottom first Proceed slowly making sure not to pinch any of the wires Figure 5 6 Fasten the LCAi220 to the bracket using the four inch 7mm screws Figure 6 7 Install the faceplate label to the LCAi220 Figure 7 OT Oo g 9 e OG OL Figure 5 11 Connection Instructions Front Connections 1 Connect the local source to either the Left and Right RCA Inputs Figure 1 or to the High Level In speaker level inputs Figure 2 Note Do not connect wires to both the RCA and High Level inputs 2 If used connect the local source trigger to the 12V Trigger
3. 0i for volume control of the local speakers while providing the necessary impedance protection for the central source amplifier the Room 2 output of the Boston AVR7120 receiver The output from the receiver is sent through a Boston CB8 distribution block out to all six zones Zones 1 3 In each zone the audio signal is sent from the Boston CB8 to a Boston RVC90i volume control The Boston RVC90i provides volume control for the local speakers when the LCAi220 is in bypass mode Each Boston LCAi220 is connected to a television this is the local source for each zone The local source is triggered via an RCA video output from the TV to the 12v Trigger Video In located on the front of the Boston LCAi220 Zone 3 adds a subwoofer system Boston SA1 subwoofer amplifier and a pair of Boston VRiSub82 subwoofers for more bass Zones 4 6 Each zone is powered off of the Room 2 output of the AVR7120 The Boston RVC90i volume controls provide volume control and impedance matching for each specific zone Zone 1 Zone2 Zone 3 TV local source LCAi220 external connections LCAi220 external connections TV local source TV local source LCAi220 in wal
4. Boston CAi220 Local Control Amplifier Boston Boston Acoustics LCAi220 Important Safety Instructions Sol SOR OP GO IN a This symbol found on the apparatus indicates hazards arising from dangerous voltages A This symbol found on the apparatus indicates the user should read all safety statements found in the user manual WARNING To reduce the risk of fire or electric shock do not expose this product to rain or moisture Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings lnstall in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit rom the apparatus Unplug this apparatus during lightning storms or when unus
5. CA and High Level Inputs for simple connection to almost any audio source Installs neatly into a common low voltage dual junction box Carlon B432A or equivalent 32 cu in 2 deep x 4 wide x 4 high Current sensing for simple switching between central and local audio Easy to install with minimal tools reguired for hook up Automatic DC overload overdrive protection Installation Considerations Choosing Installation Mounting locations Convenience d cor safety requirements installation ease and performance are all factors when considering location choices Choose locations that work best for the room and its use Examples of convenient locations include behind a wall mounted TV lower section of a wall and near other installed controls Installation of the audio output wiring should be in accor dance with Article 640 of the National Electrical Code NEC and with local codes and ordi nances Do not install the LCAi220 near any electrical device such as a light switch dimmer or other 110 Volt product because of the possibility of induced electrical noise Mount each device separately using the prescribed electrical box and other low voltage mounting hard ware Check local code requirements regarding the use of such devices before selecting the mounting hardware If you are not sure of the requirements for your area check with the local wiring inspector or with an electrician or custom A V integrator Electricians an
6. Ca ote ase ERORE EE es 2 Introductions eie R maa Stacie sad a a a alts oe deselect eee 3 The Technology Inside sisitan ta amu nan rie oree r ea ied 3 Installation Considerations cccccsssccessscesssseceesscecssaeesseseecesaeesseseeceseseesssaeens 4 System DiAGraMS vinx coivevvesssceevsecesinatevsnssvsesthesenatessetagsuntarvs codesivacsuscnaushavesssutes 7 Installation Instructions ccccssscessssecessscessseeceseecesssaecssessecesaecesesseceseeesenaes 10 Connection Instructions m sr cee ideo tehan 12 Set Up Instructions coououuis a a a a aeaee ERE e TER EE 13 TroubleShooting Gulders s sumusuulu kiisu ete Leeve san eat 15 Contact lnformationsssssssssan MAA ATSA TAA am n si 16 Specifications LCAi220 Power OW x 2 BQ 20W XZ 4Q Signal to Noise Ratio gt 95dB THD at Rated Power OA Trigger Voltage Input 3 30 VAC DC Trigger Voltage Output 12 VDC 200mA Power Input LCAi220 12 16 VDC 2 5A Power Input Power Supply 100 240 V 50 60Hz 1 8A Input Sensitivity OOM full output SSS Dimensions inside Junction Box 5 x 5 x 24 H x W x D not including connections 131 x 131 x 54mm Introduction LCAi220 The LCAi220 is an in wall local zone amplifier that switches between a central audio source whole house audio and a local source TV CD player etc In the standby mode the local speakers are amplified by a centrally located distribution amplifier When an input signal is detected from ei
7. HP 30Hz speakers 30Hz Larger speakers with a Flat powered subwoofer or 30Hz smaller speakers without i 100Hz a powered subwoofer 100Hz Smaller speakers with or without a powered subwoofer HP HP 100Hz Note If at higher volumes the sound Flat becomes distorted especially during heavier bass passages it may be 30Hz necessary to increase the highpass 100Hz setting to a higher value 13 Adjusting the Input Once the audio level from the central music system is configured 1 Figure 1 Disconnect turn off the power source to the LCAi220 Set the device used for the local source to variable output Input Level Turn the input level on the LCAi220 to minimum all of the way counter clockwise Figure 1 Reconnect turn on the power source of the LCAi220 Figure 2 Turn on the local source device Adjust the volume on the source device to approximately 80 of total output Slowly turn up clockwise the input level control on the LCAi220 Figure 2 The local LED will illuminate once a source is detected Continue to turn up the desired maxi mum level is achieved Input Level 2 If a subwoofer is connected to the LCAi220 adjust the subwoofer gain so it is balanced with the main speakers Front Controls Diagram E OO O O Local Control Amplifier Local source LED
8. Video In Figure 3 3 If used connect the local source trigger output to the 12V Trigger Video Pass Through Figure 4 4 If the rear power connection is not used connect the power supply input to the 15VDC input Figure 5 Note Only needed if rear power input is not used Front Connection Diagram ve a das OO 12V Thigger ggg 19 16vDC L R Fuse High Level In FSA Local Control Amplifier Left and Right RCA Inputs 15VDC Power Input 12V Trigger Video In 12V Trigger Video Pass Through Left and Right High Level Inputs 12 Figure 1 Set Up Instructions Central Music System Configuration Adjust the levels for the central music system If an in wall volume control is used follow its instructions for configuration before continuing If a volume control is not used start with the volume on the central music system low and turn it up until a comfortable volume level is achieved Adjusting the Highpass HP Filter on the LCAi220 HP LL The LCAi220 features a selectable highpass filter to remove low freguency Flat information from the local speakers when amplified by the LCAi220 This is 30Hz especially useful when using smaller 100Hz speakers or when use in conjunction with a powered subwoofer Flat No filter engaged larger HP
9. d Custom A V integrators are also good choices for installing such devices If at any time you feel unsure about wiring connecting or choosing locations consult with a professional Speaker Wiring Requirements For most applications it is recommended that you use a minimum of a 16 AWG American Wire Gauge stranded copper wire Never use a wire gauge smaller than 18 AWG The higher the gauge number the thinner the wire is Heavier wire should be used for longer cable runs Wiring should be done in accordance with Article 640 of the National Electrical Code NEC and with local codes and ordinances Class 2 cable designated CL2 CL2P or CL2R is typically appropriate for use in residential construction This is a plastic jacketed multi wire cable Class 3 cable and other suitable substitute cables may also be used Table 725 61 of the 2005 NEC specifies suitable cable substitutions The use of unjacketed single wires is not permitted For commercial or multi unit residences other wiring methods and cable types may be required If you are not sure of the requirements for your area check with the local wiring inspector or with an electrician or custom A V integrator You will require 4 conductors from the amplifier location to the LCAi220 input using one 4 conductor or two 2 conductor cables and 2 conductor cables from the LCAi220 outputs to each speaker location in the room Electricians and Custom A V integrators are good choices for installing
10. ed for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged iquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped The power plug at the wall must remain easily accessible after installation to be able to disconnect power from the apparatus 14 aintain a minimum safe distance of 2 inches 50mm around the front of the apparatus for sufficient ventilation The ventilation should not be impeded by placing around the apparatus items such as newspapers ablecloths curtains etc 15 The apparatus shall not be exposed to dripping or splashing No objects filled with iquids such as vases shall be placed on the apparatus 16 The apparatus is suitable for moderate climates Notice on EMI American Users Note 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 against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee
11. ignificant time during the final hook up of your system Make sure to leave an appropriate length in each location making installation easy and neat DO NOT RUN SPEAKER WIRE PARALLEL WITH THE HOUSE LIGHT AND POWER CABLES Locating speaker wire to close to electrical wire and devices can result in undesired noises such as buzzing humming and popping noises through the speak ers Locating speaker wire too close to electrical wire and devices can result in undesired nois es such as buzzing humming and popping noises through the speakers It is OK to cross over light and power cables if necessary but do so infrequently and only at 90 angles When at all possible keep speaker wire as much as 20 inches 50cm from light and power cables and a stud bay away from electrical devices such as switches and outlets Following these simple pre cautions will insure that there is no noise from an electrical device Retro fitting an Existing Home Wiring and installing systems in an existing home can be difficult If you are unfamiliar with the tools required to feed wire through existing ceilings and walls it is highly recommended that you consult an Electrician Low voltage provider Installer and or custom A V Integrator for your installation needs Likewise if you are unfamiliar with the construction methods of the home please consider professional assistance Warning Always turn off the amplifier when connecting volume controls speakers or any othe
12. l connections LCAi220 in wall connections LCAi220 in wall connections RVC9Oi Volume Control RVC90i 2 e volume O Co Local Speakers O Rvesoi Volume Control N KS Local Speakers Local Speakers E lbi i a a On e Q 2S 66 cs ssst a LCApi One included 16DC w each LCAi220 Power Supply One included w each LCAI220 Central Music Source Room 2 output In Wall Subwoofers SIKSI O fpes O Jeee o Control o Control o Control O O O T M C aJ E gt COM KC CoH KO Ono Zone 4 Zone 5 Zone6 Installation Instructions Installing Rear Connections 1 Tip Prewire Run the speaker wires from the receiver amplifier and the power wires if applicable to the junction box and the speaker wires from the junction box out to the local speakers Figure 1 Label the speaker power wires to simplify connect ing the wiring later 3a 10 Install the LCAi220 mounting plate to the junction box using the two 1 inch 32mm screws Figure 2
13. nd local source Warning Always disconnect power to the LCAi220 and shut down any connected devices before making checking any front or rear connections on the LCAi220 15 If Service Seems Necessary First contact the dealer from whom you purchased the LCAi220 If that is not possible write to Boston Acoustics Inc Attn Parts and Service 300 Jubilee Drive Peabody MA 01960 U S A Or contact us via e mail at support bostonacoustics com We will promptly advise you of what action to take If it is necessary to return your LCAi220 to the factory please ship it prepaid After it has been repaired we will return it freight prepaid in the U S A and Canada 16 17 300 Jubilee Drive Boston Boston Acoustics and the Boston Acoustics logo are Boston Peabody MA 01960 registered trademarks of Boston Acoustics Inc U S A 978 538 5000 Specifications are subject to change without notice Boston Acoustics www bostonacoustics com 2005 Boston Acoustics Inc 042 002262 1
14. onnections gt s LY Local Speakers Powered SESS Subwoofer optional Central Music Source Room 2 output System Diagrams cont System 2 Simple Configuration Rear Power Input This example is similar to the System 1 diagram except the power supply from the LCAi220 is connected to the rear input with the power routed from a central location usually located with the central music source equipment Also a RVC90i volume control is added for volume control of the central music source when the LCAi220 is in bypass mode TV local source Local Speakers Ly Local Control Amplifier LCAi220 external connections When 11 7 16Voc suB SPEAKER OUT SPEAKERIN IN OUT cooo 0000 2020 eed o O RVC90i Volume o Control OM O I te aE Ee TI Central Music Source Room 2 output LCAi220 in wall connections PiS l Capi Included w LCAi220 S Powered Subwoofer optional H 16VDC Power Supply Included w LCAi220 System Diagrams cont System 3 Complex Configuration Whole House Audio Diagram The system below uses six separate zones Three of the zones use Boston LCAi220 Local Control Amplifiers powered from a central location Each Zone uses a Boston RVC9
15. r components to the system Only professionals should perform the installation of these devices or those possessing skills in construction experience with the proper use of hand tools knowledge of local building and electrical codes and familiarity with the environment in which the product s will be installed Install all products to meet all local building energy and electrical codes Warning About System Impedance The LCAi220 does not provide impedance matching If multiple speakers are used you must use a volume control and all impedance matching jumpers should be set to the same value Not doing so will cause undesirable performance and improper protection for the central system amplifier System Diagrams System 1 Simple Configuration Front Power Input In this example the central music source receiver located in another part of the house provides the default audio for the room Signal sensing on the RCA connections will trigger the local source audio from the TV configured to variable output Power is connected to the front input For additional bass a powered subwoofer may be used TV local source i wA e 60 Aree Local Controt Ampiifior LCAi220 external connections 16VDC Power Supply QW a 10 Included w LCAi220 a N 16Voc SUB SPEAKER OUT SPEAKERIN IN OUT 6008 6008 8099 LCAi220 in wall c
16. such devices If at any time you feel unsure about wiring connecting or choosing locations consult with a professional 4 Powering the LCAi220 A 16VDC power supply is included for powering the the LCAi220 There are two separate connection points for powering the LCAi220 a front mounted connection for local powering of the LCAi220 and a rear mounted connection for central powering of the LCAi220 It is only necessary that you connect power to one of the connections Front Connection When using the front mounted input connect the plug from the power supply to the input on the LCAi220 The power supply plugs into a standard 110VAC outlet Rear Connection When using the rear connection the power supply is located with the central audio system and power wire is run from that location to the LCAi220 This configuration will require the use of the included LCApi power interface The LCApi allows connection of power wire to the LCAi2205 included power supply Rear Power Wiring Reguirements You will require a 2 conductor cable from the power supply location to the LCAi220 input The cable should be at least 18 gauge or heavier and of Class 2 construction or an acceptable substitute The installation methods are identical to those for installing the loudspeaker wiring although there is no need to increase the wire size beyond 16 gauge Again Electricians Custom A V Integrators and Electrical Inspectors are great resources regarding this s
17. 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 eReorient or relocate the receiving antenna elncrease the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected eConsult the dealer or an experienced radio TV technician for help Canadian Users This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme a la norme NMB 003 du Canada 1 Local Control amplifier LCAi220 Thank you Thank you for selecting a Boston Acoustics LCAi220 Local Control amplifier Your LCAi220 has been designed to deliver years of music enjoyment and satisfaction Please keep your manual in a safe place in case you need to refer to it at a later date Our Installation Considerations are a guide for those with and without experience installing a local control amplifier If at any point you have questions regarding the connection and installation of this device please contact technical support at support bostona com or 978 538 5000 Contents Thank Youissiistostilveitisi sh amis nt dace eee 2 Specifications enes mest nte maa apes EEEE e ean eE
18. ther the local high level low level or the 12v trigger video in inputs the LCAi220 switches on and the speakers switch over to the LCAi220 s high quality amplifier The LCAi220 provides a simple easy to use way to have multi source audio in any room Its compact in wall design allows the LCAi220 to fit easily behind a flat panel TV The LCAi220 mounts in a two gang wall box with all speaker connections located behind the unit and the local source inputs and controls located on the front The end result is an unrivaled combination of installation ease and performance and with its auto source switching makes the LCAi220 literally invisible to the end user The Technology Inside Amplifier The amplifier used in the Boston Acoustics LCAi220 is a high performance class A B amplifier delivering sound quality equivalent to the finest multi room multi zone amplifiers or receivers Low Voltage Power Requirements The LCAi220 features two separate power inputs one on the front for use with the supplied power supply and a second located on the rear panel for a centrally mounted power supply Since the LCAi220 can operate with 12vdc to 16vdc power it can be used on the same power source as many other devices used in home audio installations today allowing an installer to mount a central power supply and route power to many separate locations Local Source High and Low Level Inputs The LCAi220 features both high speaker level and low level RCA inp
19. ubject They are also great at installing such devices If at any time you feel uncomfortable in wiring connecting or choosing product locations consult with a professional New Home Construction Precautions The wiring and installing of in wall electronics and devices is easier when the walls are free of insulation prior to the drywall being applied It is important that precautions are taken to avoid system failures It is recommended that when wiring your open walls that you are aware of the potential hazards and the tools and hardware required to avoid them Nails screws and accidentally cut or exposed wire can cause failure in the system Local hardware stores sell nail guards that cover the stud where the speaker wire passes through Using nail guards will almost guarantee that a nail or a screw won t damage the speaker wire Do not share holes in studs with electrical alarm or other unrelated low voltage wire Only drill the size hole necessary to feed the wire through easily Secure the speaker wire to the stud as close to the center of the stud bay as possible using insulated staples or other methods that won t damage the jacket of the wire If using staples be careful not to damage the wire Be careful while installing the wire in the walls not to pull over exert or radically bend the wire to a point where damage can occur Label wires at both ends of the wire and protect those ends from label damage Labeling wire is essential and saves s
20. uts allowing for connection to almost any local audio source Adjustable Input Level The LCAi has a fully adjustable gain to match the output of the LCAi220 to the central music source Highpass Filter The LCAi220 features an adjustable highpass filter for the local speakers Selectable between Flat no crossover engaged 30Hz 12dB and 100Hz 12dB This is especially useful if using the LCAi220 with small speakers or with a subwoofer The highpass is only active when used with the local zone Subwoofer Line Output The LCAi220 features a dedicated low level subwoofer output The subwoofer output is derived from both the local source being amplified by the LCAi220 and the whole house system The signal from the subwoofer output is a mono signal lowpassed at 85Hz amp 12dB per octave Fault Detection Protection The LCAi220 features active circuitry to protect itself against a potentially hazardous situation If a fault state is detected the LCAi220 will go into protection mode and the fault LED will illuminate 3 LCAi220 Benefits Level Adjust to match the output of the LCAi220 to the central distribution audio amplifier Signal Sensing high and low level and Input trigger for switching to local source Output trigger for triggering on a connected component Subwoofer Etc Great sounding a perfect system match with Boston Acoustics speakers Versatility to connect to other manufacturers speakers R
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