Boss Audio Systems Marine
Contents
1. Co Le a a ms To L R Audio Outputs of head unit or signal processor Remote subwoofer level control Marine MOSFET Amplifier User s Manual page 8 Low Level Input Wiring Low level RCA input wiring is preferred for best audio performance Always use a high quality RCA cable for best audio performance NOTE Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time 4 Channel Amplifier with 4 Channel Audio input Source MR1000 marine BOSS gt LRANGt LOWPASS BASS BOOST INPUT LEVEL INPUT SENS mriooo FOUR CH ANNEL POWER AMPLIFIER cH3 4 AUDIO INPUTS D FO DE CHANNELS 3 4 er ES ro D DE INPUT SENS ET LOWPASS BASSBOOST INPUTLVEL 1 pau Fano CRT INPUT MODE HIGH LEVEL Input Mode switch in 4CH Position 4CH 2CH INPUT MODE Remote subwoofer level control INPUTS not used in this installation CONDON To Front and Rear Audio Outputs of head unit or signal processor 4 Channel Amplifier with 2 Channel Audio Input Source MR1000 res LOWPASS oN oN INPUT SENS marine BOSS 000 R CHANNEL POWER AMPLIFIER a N AUDIO a OS CHANNELS 32. To LEFT and RIGHT Speaker Terminals of head unit or signal processor Marine MOSFET Amplifier User s Manual page 10 High Level Input Wiring The high level input s should only be used when your head unit lacks RCA outputs If the RCA outputs are not present connect the speaker outputs from the receiver to the high level input connector of the amplifier Be sure to observe polarity to avoid audio phase problems NOTE Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time 4 Channel Amplifier LOW LEVEL MR1000 INPUTS not used in this with 4 Channel Audio Input Source installation BOSS D marine r LOWPASS BASS BOOST INPUTLEVEL INPUT SENS CROSSOVER _ 40h 1502 IX KO 100mV CHANNELS 3 4 CHANNELS 1 2 INPUT INPUT SENS MODE CROSSOVER Input Mode switch in 4CH Position ACH 2CH INPUT MODE Remote subwoofer level control CH3 CH3 WHITE BLUE CH4 CH4 PURPLE GREEN BLACK CH2 CH2 PURPLE GREEN CH1 CH1 WHITE BLUE BLACK Ob To FRONT and REAR L R Speaker Terminals of head unit or signal processor Marine MOSFET Amplifier User s Manual page 11 High Level Input Wiring The high level input s should only be used when your head
3. 4 CHANNELS 1 2 INPUT SENS ach 2cH INPUT MODE HIGH LEVEL ACH 2CH INPUT MODE Remote subwoofer level control 2CH Position Input Mode switch in INPUTS not used in this installation Marine MOSFET Amplifier User s Manual page 9 To L R Audio Outputs of head unit or signal processor High Level Input Wiring The high level input s should only be used when your head unit lacks RCA outputs If the RCA outputs are not present connect the speaker outputs from the receiver to the high level input connector of the amplifier Be sure to observe polarity to avoid audio phase problems NOTE Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time 2 Channel Amplifier MR800 305 Dmarine Mb uanner power ampuirien UDIO HIGH AUDI REMOTE POWER SUBWOOFER INPUTS INPUTS pRotection CONTROL MODE LOW PASS BASS BOOST INPUT FREQ LEVEL D ana DA DA D orri PRIS RANGE PASS 40h 150z o gt 184 MN MAX INPUT CROSSOVER SENSITIVITY MODE SY LOW LEVEL A INPUTS not used in this T installation Remote subwoofer level control R R PURPLE GREEN L L WHITE BLUE BLACK 20000A
4. Then set the volume control on the head unit to about 3 4 volume and adjust the amplifier s input level control s to just below the level of distortion 11 Further fine tuning of the various controls may be necessary to obtain best results Don t misuse the level control Do not mistake the input level control for a volume control It is designed ONLY to match the output level of your audio source to the input level of your amplifier Do not adjust this input level to maximum unless your input level requires it Ignoring these instructions will result in an input overload to the amplifier and excessive audio distortion It can also cause the protection circuit to engage Marine MOSFET Amplifier User s Manual page 7 Low Level Input Wiring Low level RCA input wiring is preferred for best audio performance Always use a high quality RCA cable for best audio performance NOTE Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time 2 Channel Amplifier MR800 3088 Dmarine Wot TWO CHANNEL POWER AMPLIFIER AUDIO HIGH INPUTS INP TS prorecnon LOWPASS BASSBOOST INPUT MODE Oo FREQ LEVEL O O sas A CD D mam REMOTE PASS RANGE PASE oz 150Hz 0 8 MN MAX INPUT su OR CROSSOVER SENSITIVITY CONTROL MODE HIGH LEVEL INPUTS not used in this installation
5. User s Manual page 17 Troubleshooting If you experience operation or performance problems with this product compare your installation with the electrical wiring diagram on the previous pages If problems persist read the following troubleshooting tips which may help eliminate the problems SYMPTOM POSSIBLE REMEDY Amplifier will not Check to make sure you have a good ground connection power up Check that the Remote Input Turn On has at least 3VDC Check that there is battery power on the terminal Check that there is at least 12v Check all fuses replace if necessary Make sure that the Protection LED is not illuminated If it is lit shut off the amplifier briefly and then repower it Protection LED comes on when Check for short circuits on speaker leads Turn down the volume control on the head unit to prevent overdriving amplifier is Remove speaker leads and reset the amplifier If the Protection LED still powered up comes on then the amplifier is faulty and needs servicing No output Check that all fuses are OK Check that amplifier is properly grounded Check that the Remote Input Turn On has at least 3VDC Check that the RCA audio cables are plugged into the proper inputs Check all speaker wiring Low output Reset the Level Control Check the Crossover Control settings Audio present in only one channel Check the RCA interconnect cables Check all speaker wiring High hiss
6. off circuit e Variable input gain control e Variable low and fixed high pass crossovers e Variable bass boost 0 to 18dB e Exclusive protective coating on PC board to prevent damage from humidity e LED power and protection indicators e Silver heatsink e Remote subwoofer level control About 2 Ohm operation Your 3995S Marine amplifier has been designed to operate efficiently at loads down to 2 Ohms This means that you can install four 8 Ohm speakers per channel when using parallel wiring Increasing the number of woofers per channel at low frequencies below 100Hz produces an acoustic coupling effect This acoustic coupling effect increases your power output by about 3dB per speaker or the equivalent of an additional 10W per speaker When operating at 2 Ohms the amplifiers will increase their output power by approximately 50 The current draw will also increase by about the same amount so be sure you have enough current to run the amplifiers into a 2 Ohm load If you lack adequate current your music reproduction will be distorted Marine MOSFET Amplifier User s Manual page 3 General precautions Before installing and using your new 3995 Marine amplifier please be come familiar with all the informa tion contained in this manual Please keep this manual in a safe place for future reference e Do not open or attempt to repair this unit yourself Dangerous high voltages are present w
7. unit lacks RCA outputs If the RCA outputs are not present connect the speaker outputs from the receiver to the high level input connector of the amplifier Be sure to observe polarity to avoid audio phase problems NOTE Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time 4 Channel Amplifier LOW LEVEL MR1000 INPUTS not used in this with 2 Channel Audio Input Source 3088 D marine LOWPASS BASS BOOST INPUTLEVEL INPUT SENS ec OG CROSSOVER CHANNELS 3 4 CHANNELS 1 2 INPUT CROSSOVER INPUT SENS MODE installation Input Mode switch in 2CH Position 4CH 2CH INPUT MODE Remote subwoofer N level control L L WHITE BLUE R PURPLE GREEN HIGH LEVEL CH3 4 INPUTS not used in this installation R BLACK Marine MOSFET Amplifier User s Manual page 12 oooooo To LEFT and RIGHT Speaker Terminals of head unit or signal processor Power and Speaker Wiring 2 Channel Amplifier MR800 Two Channel Mode CONNECTIONS SPEAKER 305 marine BLACK Chassis ground WHITE on F LEFT to REMOTE TURN ON E Speaker ORANGE terminal of head unit P RED W
8. 3955 D ME XONXES Two Channel High Power MOSFET Marine Audio Amplifier MR1000 Four Channel High Power MOSFET Marine Audio Amplifier MR800 Congratulations on your purchase of a 3955 Marine Amplifier It has been designed engineered and manufactured to bring you the highest level of performance and quality and will afford you years of listening pleasure Thank you for making 305 Marine your choice for AUDIO SYSTEMS marine audio entertainment USER S MANUAL page CONTENTS 2 Introduction What is included Features About 2 Ohm operation General precautions R O Q N Protection circuitry 5 Installation precautions 5 Fuses 6 Mounting the amplifier 6 Connecting the amplifier 8 Low level input wiring 10 High level input wiring 13 Power and speaker wiring 18 Troubleshooting 19 Specifications Marine MOSFET Amplifier User s Manual page 1 Introduction With the 399S Marine MOSFET amplifier series we are introducing two new amplifiers designed specifically for marine audio installations This new series includes a 2 channel amplifier and a 4 channel amplifier All 3088 Marine models feature both high pass and low pass crossovers For further flexibility in the use of a subwoofer a variable bass boost control has been included You can control the subwoofer level with the remote level control module These 395 Marine amplifiers are constructed using a spec
9. HITE BLACK ooo GREY RIGHT FUSE Speaker provided GREY BLACK Bridged Mode CONNECTIONS AT 3055 marine Connect the Negative terminal of the speaker to the R amplifier lead BLACK Connect the Positive a terminal of the speaker to the Chassis L amplifier lead ground point WHITE to REMOTE TURN ON Rieke ORANGE terminal of head unit 4 8 OHMS RED GREY BLACK D En SUBWOOFER provided Marine MOSFET Amplifier User s Manual page 13 Power and Speaker Wiring 4 Channel Amplifier MR1000 Four Channel Mode POWER CONNECTIONS US O cE 3038S Dmarine 2 BLACK Chassis aaa WHITE point to REMOTE TURN ON H CH1 ORANGE terminal of head unit Speaker WHITE BLACK RED GREY E F cH2 FUSE Battery Speaker provided GREY BLACK GREEN CH3 Speaker GREEN BLACK PURPLE CH4 Speaker PURPLE BLACK Marine MOSFET Amplifier User s Manual page 14 Power and Speaker Wiring Bridged Mode 4 Channel Amplifier MR1000 POWER CONNECTIONS 305 D marine SPEAKER OUTPUTS 0 e1 CE RED BLACK Chassis ground point to REMOTE TURN ON terminal of head unit Ed E ORANGE FUSE provided Connect the CH1 lead to the Subwoofer 1 terminal Connect the CH2 lead to the Subwoofer 1 terminal WHITE SUBWOOFER 1 GREY BLACK SPEAKER IMPEDANCE 4 8 OHMS SUBWOOFER 2 PURP
10. LE BLACK Connect the CH3 lead to SPEAKER the Subwoofer 2 terminal IMPEDANCE 4 8 OHMS Connect the CH4 lead to the Subwoofer 2 terminal Marine MOSFET Amplifier User s Manual page 15 Speaker Wiring 2 Channel Amplifier MR800 Tri mode operation allows you to connect this amplifier to a pair of main speakers plus a subwoofer on one pair of output channels The main speakers will operate in STEREO while the subwoofer simultaneously operates in MONO To set up the amplifier to run in this mode put the crossover switch in the FULL position Insert high pass filter capacitors and a low pass filter inductor into the wiring as shown below Be sure to check the table at the bottom of this page to determine the correct capacitor and inductor values for the crossover frequency you wish to achieve Tri Mode POWER CONNECTIONS SPEAKER 3088 Dmarine BLACK High pass filter capacitors Chassis d pie a MINIMUM o LEFT SPEAKER to REMOTE TURN ON Speaker IMPEDANCE ORANGE terminal of head unit WHITE mi P 4 OHMS RED Q IS o provided RIGHT MINIMEM Speaker IMPEDANCE GREY BLACK 4 OHMS Component values for 6dB Passive Crossover SUBWOOFER FREQUENCY INDUCTOR CAPACITOR Low pass 80 Hz 7 5mH 470uF filter inductor SPEAKER 100 Hz 6 5mH 330uF 120 Hz 5 5mH 330uF 8 OHMS 150 Hz 4mH 220uF Marine MOSFET Amplifier User s Manual page 16 Speake
11. hich may result in electric shock Refer any repairs to a qualified service technician e To avoid risk of electronic shock or damage to the amplifier do not permit any of this equipment to become damp or wet from water or drinks If this does occur immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible e f there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures immediately unplug the power cord and send the amplifier to your local dealer or service center as soon as possible SHOCK HAZARD Do not open the case of this product There are dangerous voltages present within the unit There are no user serviceable parts within the unit Marine MOSFET Amplifier User s Manual page 4 Protection Circuitry This amplifier incorporates special protection circuitry which will disable the amplifier if any of the following should occur e Input overload e Short circuit e Extremely high temperatures If any of these conditions is detected the amplifier will go into a self preservation mode and the PROTECT LED on the model number badge on top of the amplifier will be illuminated What should I do if my amplifier PROTECT LED is illuminated If you observe that the PROTECT LED is on please check the system carefully to determine what has caused the protection circuit to engage To reset the amplif
12. ial corrosion resistant coating on the printed circuit board to prevent damage from the high humidity of the marine environment In order to prevent the intrusion of water into the amplifier enclosure we have provided the connections at the end of waterproof wires cables and tightly grommeted the wires as they pass through the end panels An additional important unique compenent is the rubber pad which seals all control openings 3953 Marine understands that amplifiers are placed in many different kinds of installations so we have also included an input sensitivity control to help you integrate the amp into your system regardless of the nature of your input source Marine MOSFET Amplifier User s Manual page 2 What is included When first unpacking your new amplifier please check first that the package contains all of the items below If something is missing contact the store where you purchased the player e Marine amplifier e High input cable with connector s e Speaker output cable with connector s e Remote level controller e Four 4 mounting screws Features Your new 395 Marine amplifier AUDIO SYSTEMS features the following e Class A B operation e Bridgeable outputs e TriMode capable e MOSFET PWM Pulse Width Modulated Power Supply e 2 Ohm stable stereo operation with output power increase e Thermal and speaker short protection e Soft turn on circuit e Remote turn on turn
13. ier when it is in PROTECT mode turn the power off to the system usually by turning off the head unit or other signal source which feeds the amplifier and then turn it on again If the amplifier has shut down due to thermal overload you should first allow it to cool down before restarting If the shut down was due to either an input overload or a short circuit be sure to correct these conditions before attempting to power up the amplifier again Installation precautions Before you drill or cut any holes investigate your vessel s layout very carefully Take special care when you work near the gas tank fuel lines hydraulic lines and electrical wiring Never operate the amplifier when it is unmounted Attach all audio system components securely within the amplifier to prevent damage especially in an accident Do not mount this amplifier so that wire connections are unprotected in a pinched condition in contact with any metal surfaces in your marine vessel or likely to be damaged by nearby objects Before making or breaking power connections in your system disconnect the marine vessel battery Confirm that your head unit or other equipment is turned off while connecting the input jacks and speaker terminals If you need to replace the power fuse replace it only with a fuse identical to that supplied with the amplifier Using a fuse of a different type or rating may result in damage to your audio system or you
14. in the speakers Disconnect all RCA inputs to the amplifiers If the hiss disappears then plug in the component driving the amplifier and unplug its inputs If the hiss disappears at this point go on until the faulty noisy component is found It is best to set the amplifier s input level control as low as possible The best subjective signal to noise ratio is achieved in this manner Try to set the head unit as high as possible without distortion and the amp input level as low as possible Squealing noise from speakers Check for improperly grounded RCA interconnects Distorted sound Check that the Input Level Control is set to match the signal level of the head unit Always try to set the Input Level as low as possible Check that all crossover frequencies are properly set Check for short circuits on the speaker leads Amplifier gets very hot Check that the minimum speaker impedance for the amp model is correct Check that there is good air circulation around the amp In some applications it may be necessary to add and external cooling fan Engine noise static type This is usually caused by poor quality RCA cables which can pick up radiated noise Use only the best quality cables and route them away from power cables Engine noise alternator whine Check that speaker leads are not shorted to the marine vessel chassis Check that the RCA grounds are not shorted to the marine vessel chassi
15. r Wiring 4 Channel Amplifier MR1000 Tri mode operation allows you to connect this amplifier to a pair of main speakers plus a subwoofer on one pair of output channels The main speakers will operate in STEREO while the subwoofer simultaneously operates in MONO To set up the amplifier to run in this mode put the crossover switch in the FULL position Insert high pass filter capacitors and a low pass filter inductor into the wiring as shown below Be sure to check the table at the bottom of this page to determine the correct capacitor and inductor values for the crossover frequency you wish to achieve Tri Mode POWER CONNECTIONS SPEAKER 303838 _D m orine BLACK High pass filter capacitors Chassis MINIMUM He ware 7 GBA F 4 OHMS to REMOTE TURN ON ja CH1 ORANGE terminal of head unit Speaker RED WHITE BLACK O o GREY MINIMUM SPEAKER FUSE IMPEDANCE provided GREY BLACK 4 OHMS ZT Low pass filter inductor Component values for 6dB Passive Crossover FREQUENCY INDUCTOR CAPACITOR 80 Hz 7 5mH 470uF 100 Hz 6 5mH 330uF 120 Hz 5 5mH 330uF 150 Hz 4mH 220uF Low pass filter inductor SPEAKER IMPEDANCE SUBWOOFER soHMS SUBWOOFER High pass filter capacitors MINIMUM GREEN SPEAKER 7 IMPEDANCE H CH3 4 OHMS GREEN BLACK Speaker MINIMUM IMPEDANCE SPEAKER 8 OHMS PURPLE IMPEDANCE OHMS cHa 408M PURPLE BLACK Speaker Marine MOSFET Amplifier
16. r amplifier which is not covered by the manufacturer s warranty Fuses Power fuses protect both the amplifier and the electrical system of your boat from fault conditions If you must replace a fuse in your Marine amp use a fuse of exactly the same type and rating Using a different type or rating of fuse may result in damage to your amp or marine vessel or cause a fire Marine MOSFET Amplifier User s Manual page 5 Mounting the amplifier 1 Find a suitable location in the marine vessel in which to mount the amplifier 2 Make sure there is sufficient air circulation around the intended mounting location 3 Mark the location for the mounting hole screws by positioning the amplifier where you wish to install it Use a scribe or mounting screw inserted through each of the amp s mounting holes to mark the mounting surface If the mounting surface is carpeted measure the hole centers and mark with a felt tip pen 4 Drill pilot holes in the mounting surface for the mounting screws Place the amplifier in position and attach the amplifier to the mounting surface securely using screws Marine MOSFET Amplifier User s Manual page 6 Connecting the amplifier Before doing any wiring look through this manual and identify the diagrams to follow for power input and speaker connections for your particular installation Be sure you understand all the connections before you proceed 1 Connect the ground terminal to
17. s Check that the head unit is properly grounded Marine MOSFET Amplifier User s Manual page 18 Specifications JSS MG Re Two Channel Four Channel Marine Amplifier Marine Amplifier MODEL MR800 MR1000 RMS POWER 125W x 2 100W x 4 into 4 Ohms MAX POWER 400W x 2 250W x 4 into 2 Ohms BRIDGED POWER 800W x 1 500W x 2 into 4 Ohms Min speaker 2 Ohm Stereo 4 Ohm Mono Bridged impedance THD 0 01 0 01 Frequency response 6Hz 50kHz 6Hz 50kHz Signal to noise ratio 102dB 102dB Channel separation 90dB 90dB Damping factor 125 125 Crossover range low pass 40Hz 150Hz 40Hz 150Hz high pass 200Hz fixed 200Hz fixed Bass boost 0 18dB 0 18dB Fuse rating 25A x 1 40A x 1 Dimensions 8 3 4 12 3 4 7 3 8 x 2 1 4 x All specifications subject to change without notice Marine MOSFET Amplifier User s Manual page 19 Notes OSS _ USE
18. the closest point on the chassis of the marine vessel Keep this ground wire to less than 39 100 cm in length Use 8 gauge or heavier wire 2 Connect the remote terminal to the remote output of the head unit using 16 gauge or heavier wire 3 Connect an empty fuse holder within 18 45 cm of the boat s battery and run 8 gauge or heavier cable from this fuse to the amplifier location 4 Check that the fuse holder is empty Then connect the fuse holder to the BATT connection on the amplifier 5 If multiple amplifiers are being used in your system either e Run a separate pair of cables from the battery and a chassis ground point to each amplifier Each cable must have its own inline fuse Or e Run a 4 gauge cable from the fuse holder at the battery to a distribution block at or near the amplifier s location Then run separate cables from the amplifier to this distribution block and to independent chassis ground points 6 Connect all line inputs and outputs if used using high quality cables Connect all speakers following the diagrams in this manual Be sure to observe proper polarity to avoid audio phase problems 7 Insert fuse s into the battery fuse holder s 8 Recheck all connections before powering up the amplifier 9 Set all level controls to minimum position and set all crossover controls switches to the desired frequency points 10 Power up the head unit and the amplifier
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