BIG BANG MOSFET AMP MANUAL
Contents
1. 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 external cooling fan s 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 vehicle chassis Check that the RCA grounds are not shorted to the vehicle chassis Check that the head unit is properly grounded BB4 150 MOSFET Amplifier User s Manual page 10 Specifications PU t di QNET ALGIO MODEL BB4 150 Four Channel Digital Audiophile Power Amplifier RMS POWER 150W x 4 into 4 Ohms MAX POWER 300W X 4 into 2 Ohms BRIDGED POWER 600W X 2 into 4 Ohms Min speaker 2 Ohm Stereo impedance 4 Ohm Mono Bridged THD 0 01 Frequency response 20Hz 20kHz Signal to noise ratio 102dB Channel separation 90dB Damping factor 125 Crossover range low pass 50Hz 250Hz high pass 50Hz 250Hz Bass boost Variable 0 12dB Fuse ratin2. Planet Audio BB4 1 50 Four Channel Digital Audiophile Car Audio Power Amplifier Congratulations on your purchase of a Planet Audio BB 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 Planet Audio your choice for car audio entertainment page USER S MANUAL CONTENTS N GG A A Fh WO WO ND 9 Introduction What is included Features About 2 Ohm operation General precautions Installation precautions Mounting the amplifier Connecting the amplifier Low level input wiring 4CH Power and Speaker wiring 4CH Mode 4CH Power and Speaker wiring Bridged Mode 4CH Power and Speaker wiring TriMode 10 Troubleshooting 11 Specifications BB4 150 MOSFET Amplifier User s Manual page 1 Introduction The Planet Audio BB4 150 is part of the new lineup of BB Big Bang Squared amps all designed in the USA In addition to this four channel MOSFET amplifier the series includes high power CLASS D amps The BB4 150 features a variable low pass crossover on each pair of channels variable input gain controls and input sensitivity selectors They also incorporate a fixed high pass crossover for added system flexibility For further flexibility in the use of a subwoofer 0 12dB Bass Boost control has been included on all amplifiers You can contr
3. S CH2 High pass Speaker filter crossover Rioceome Ci 2 ja FUSES 12 POWER CONMECTIONS REMPTE _GRDUND 0 D e1 ce ji CH3 HOGED MOI Low pass filter inductor SPEAKER IMPEDANCE 8 OHMS E Planet Audio BBP High pass filter crossover CH4 Speaker amp Component values for 6dB Passive Crossover FREQUENCY INDUCTOR CAPACITOR MINIMUM High pass filter crossover SPEAKER IMPEDANCE 4 OHMS CH3 Speaker High pass filter crossover RIGHT Subwoofer 80 Hz 7 5mH 470uF 100 Hz 6 5mH 330uF 120 Hz 5 5mH 330uF 150 Hz 4mH 220uF FUSE A m to REMOTE TURN ON terminal of head unit Chassis ground point BB4 150 MOSFET Amplifier User s Manual page 9 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 Ma
4. closures immediately unplug the power wire 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 Installation precautions Before you drill or cut any holes investigate your car 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 to prevent damage especially in an accident BB4 150 MOSFET Amplifier User s Manual page 4 Before making or breaking power connections in your system disconnect the vehicle 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 your amplifier which is not covered by the manufacturer s warranty Mounting the amplifier 1 Find a suitable location in the vehicle in which to mount the amplifier 2 Make sure there is sufficient air circulation around the intended mounting location Do not flush mount or recess mount this amplifier In order to facilitate cool
5. er 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 BB4 150 MOSFET Amplifier User s Manual page 3 General precautions Before installing and using your new Planet Audio amplifier please become familiar with all the infor mation 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 which 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 If there is smoke or any peculiar odor present during use or if there is damage to any of the component en
6. g 40A x 2 17 3 4 x 2 x 6 7 8 All specifications subject to change without notice BB4 150 MOSFET Amplifier User s Manual page 11 Notes Planet Audio
7. inal of the LEFT subwoofer to the CH2 amplifier terminal Connect the Postive terminal of the LEFT SPEAKER subwoofer to the CH1 amplifier terminal IMPEDANCE 4 8 OHMS rowencomecrons FUSES 12V REMOTE GROUND TEE D Q O D iia j E Planet SPEAKER IMPEDANCE 4 8 OHMS to REMOTE TURN ON RIGHT terminal of head unit Subwoofer oo FUSE Battery Connect the Negative terminal of the RIGHT subwoofer to the CH4 amplifier terminal Connect the Postive terminal of the RIGHT subwoofer to the CH3 amplifier terminal BB4 150 MOSFET Amplifier User s Manual page 8 Power and Speaker Wiring 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 switches 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 below to determine the correct capacitor and inductor values for the crossover frequency you wish to achieve SPEAKER IMPEDANCE High pass filter crossover Low pass filter inductor LEFT Subwoofer CH1 w Speaker MINIMUM SPEAKER IMPEDANCE 4 OHM
8. ing air must be able to flow in to the bottom panel of the amplifier The amplifier is designed to hover above the mounting surface for this purpose 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 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 power ground terminal to the closest point on the chassis of the car 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 car 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 m
9. ke 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 amplifier is powered up Check for short circuits on speaker leads Turn down the volume control on the head unit to prevent overdriving Remove speaker leads and reset the amplifier If the Protection LED still 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 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
10. ol the subwoofer level with the remote level control module Planet Audio understands that amplifiers are placed in many different kinds of installations so we incorporated a very flexible system of controls in these amplifiers in order to help you integrate the amp into your system regardless of the nature of your input source BB4 150 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 amplifier e BB4 150 amplifier e Remote subwoofer level control e Four 4 mounting screws Features Your new BB amplifier features the following e Digital audiophile operation e Bridgeable outputs e Tri Mode 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 off circuit e Variable input gain control e Variable low pass crossovers e Variable high pass crossovers e Variable 0 to 18dB Bass Boost e Nickel plated RCA low level and high level inputs e LED power and protection indicators e Black anodized heatsink About 2 Ohm operation Your BB amplifier has been designed to operate efficiently at loads down to 2 Ohms This means that you can install four 8 Ohm speakers p
11. t 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 BB4 150 MOSFET Amplifier User s Manual page 5 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 To REAR Audio Outputs of head unit or signal processor To FRONT Audio Outputs of head unit or signal processor INPUT INPUT CROSSOVER BASS SENSITIVITY LEVEL FREQUENCY CROSSOVER BOOST POWER PROTECTION FL HG RANGE PS 0 1208 FASS RANGE PAS 0 1208 To L R Inputs of another amplifier if present CHANNELS 3 4 BB4 150 MOSFET Amplifier User s Manual page 6 Power and Speaker Wiring CH2 Speaker CH1 SPEAKER Speaker IMPEDANCE 2 8 OHMS POWER CONNECTIONS 12V REMOTE GROUND FUSES aa 0 B B Chassis ground point SPEAKER IMPEDANCE 2 8 OHMS CH4 Speaker oo O FUSE to REMOTE TURN ON terminal of head unit BB4 150 MOSFET Amplifier User s Manual page 7 Power and Speaker Wiring LEFT Subwoofer Connect the Negative term
12. ultiple 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 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 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 i
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