Pyramid Car Audio PB744 User's Manual
Contents
1. g6 Y Adaptors head unit eadun PLEASE NOTE fusing high level inputs do not use the low level RCA inputs at the same time stercoinput connections 2ch amp PB744 LINE INPUT L R Audio head unit Outputs PLEASE NOTE If using high level inputs do not use the low level RCA inputs at the same time electrical connections 4ch amp PB1644 O SPEAKER OUTPUT KUSE POWER INPUT T REM GND aj Baa CS a T 412V battery head unit T to remote turn on 12V2. L e Saik LCD LKD Minimu i gt sepenkara R SPEAKER IMPEDANCE 40OHMS SUBWOOFER CH1 2 low pass frequency control CH1 2 high pass frequency contro protection LED CH1 2 input level control features and controls 4ch amp PB844 CH1 2 crossover mode selector switch CH1 2 bass boost level control CH1 2 level inputs LINE INPUT O fo s POWER 2cH 4cH Cc a A OO O HPF LPF AHAD 2KHe s0nE SoH to f ake SoHE 150K E channel selectorl switch LINE OUT LEVEL MODE O x over BASS EQ FF FULL TPF BP HE FULL LPF BP 048 m 1848 BA X OVER o p 18 V0 D O ED R o p CH3 4 input level contro ower RENOTE gt c c gt lt c p LED CH3 4 high pass frequency control CH3 4 low pass frequency control CH3 4 crossover mode selector control CH3 4 speaker connections CH 1 2speaker connections output level remote bass boost CH3 4 level inputs CH3 4 bass boost level control oe os BRIDGED 1CH 2CH OUTPUT iy BRIDGED 3CH 4CH power fuse power terminals POWER INPUT 12V REM GND crossover mode selector low pass frequency control high pass frequency control input level control low level inputs high level inputs bass boost level control power LED protection LED power fuse power terminals speaker connections 4ch Output Mode FRONT speaker R L R
3. MOSFET Amplifier 500 Watts x 2 Output 1000 Watts x 1 Bridged Output Variable Hi Lo Electronic Crossover Network Variable Bass Boost 0 18dB 60Hz Variable Input Level Gain Contro Remote Turn on Off RCA Inputs MultiFuntion VFD Power ON LED Indicator LED Protection Indicator S N Ratio gt 95dB THD lt 0 04 Thermal Protection Overload Protection Short Circuit Protection Anti Thump Turn On general features PB844 PB1644 High Performance 1600Watt 4 channel High Performance 4000Watt 4 channel Bridgeable MOSFET Amplifier 400 Watts x 4 Output 800 Watts x 2 Bridged Output 400WX 2 800WX 1 e Variable Hi Lo Electronic Crossover Network Variable Bass Boost 0 18dB 60Hz Variable Input Level Gain Control Remote Turn on Off RCA Inputs MultiFuntion VFD Power ON LED Indicator LED Protection Indicator S N Ratio gt 95dB THD lt 0 04 Thermal Protection Overload Protection Short Circuit Protection Anti Thump Turn On Bridgeable MOSFET Amplifier 1000 Watts x 4 Output 2000 Watts x 2 Bridged Output 100WXx 2 2000W X 1 Variable Hi Lo Electronic Crossover Network Variable Bass Boost 0 18dB 60Hz Variable Input Level Gain Control Remote Turn on Off RCA Inputs MultiFuntion VFD Power ON LED Indicator LED Protection Indicator S N Ratio gt 95dB THD lt 0 04 Thermal Protection Overload Protecti
4. any of these conditions the Protection LED will be illuminated If this occurs carefully inspect the system to determine the source of the problem If the shutdown was a result of a thermal overload condition allow the amplifier to cool down before attempting to restart it If the shutdown was a result of an input overload or speaker short circuit be sure to corr the condition before restarting The amplifier can be restarted by turning the remote power OFF and then ON again troubleshooting No output Confirm that all terminal strip connections are secure and tight Check both in line and built in fuses Both the 12V and the Remote terminals must have 12V referenced to chassis ground Confirm that the audio signal source car radio equalizer etc ls connected and is supplying output signal To check if the amp is supplying signal unplug the cables from the signal source but leave them plugged into the amp Briefly tap the center pin of each of the disconnected RCA plugs with your finger This should produce a noise feedback in your speakers Only one channel works Confirm that all terminal strip connections are secure and tight Check the Balance control on the head unit or other source to veril __ is set to its midpoint S If you are using the Low Level RCA input reverse the input plugs at the amplifier i e switch the L with the R If the channels which is silent switches to the other side the
5. connection to the auto start lead of your head unit equalizer or power antenna About power fuses Pyramid Signature Series amplifiers feature built in fuse systems These fuses protect both the amplifier and the electrical system in your vehicle from fault conditions If you ever need to replace the fuse in your Pyramid Signature Series amp use a fuse of exactly the same type and rating A different type or rating of fuse may result in damage or fire speaker connections 4ch amp PB1644 2CH Bridged Output Mode With Subwoofer Output POWER INPUT 42V REM GND K Tele lole w w w E n MINIMUN Le nd SPEAKER SPEAKERS IMPEDANCE L 4OHMS SUBWOOFER features and controls 2ch ame PB744 protection gt as LINE INPUT LINE OUT s O REMOTE PARE HPF BASS EQ LEVEL d X OVER _ 2 O Re OO J rower folie 1 2kiz 30Hz y 150Hz output level remote bass boost input level control bass boost level crossover mode selector k ti power fuse speaker connec os power terminals FUSE SPEAKER OUTPUT low level inputs power LED high pass frequency control low pass frequency control RIGHT O LEFT crossover mode selector input level control low pass frequency control high pass frequency control bass boost level control low level inputs remote bass bo
6. problem is either in the head unit other source or the connecting cables Weak output Readjust the Input Level Control s to better suit the input signal Noise in the audio If the noise is a whine whose pitch follows the engine speed confirm that the amplifier and any other signal sources hesd unit etc Are properly ground If the noise is a clicking or popping noise whose rate follows the engine speed this usually means that the vehicle is equipped with resistor spark plugs and wires or that the ignition is in need of service Check the routing of the speaker and input wires to make sure they are not adjacent to wire which interconnect lights and other accessories If the above steps fail to improve or clear noise interference the system should be checked by a professional mobile audio installer table of contents general features features and speifications 2ch amp PB744 4ch amp PB844 4ch amp PB1644 electrical connections 2ch amp PB744 4ch amp PB844 4ch amp PB1644 stereo input connections 2CH amp PB744 mono input connections 2CH amp PB744 2 4 channel input connections 4CH amp PB844 PB1644 2 mono input connections 4CH amp PB844 PB1644 15 3 4 speaker connections 5 6 2ch amp PB744 16 7 8 4CH amp PB844 17 18 4CH amp PB844 19 20 A mounting and installation 24 11 protection circuitry and troubleshooting 22 12 precautions 23 13 14 PB744 High Performance 1000Watt 2 channel Bridgeable
7. your car s electrical system from short circuit conditions use these connectors to deliver power ground and remote turn on control o the amplifier hese terminals are 14K gold plated to guarantee high conductivity and minimum signal loss output power 14 4v DC 1KHz RMS Power 4 ohms RMS Power 2 ohms Maximum Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions W XH XL mm inches 75Watts X 4 180Watts X 4 250Watts x 4 10Hz 70KHz 10K Ohms 100 Ohms 200mV 14 4V DC Neg Ground 10 5 16V 2 4 Ohms 4 8 Ohms 25AX2 292X 48 X 360 11 7X 1 92 14 5 speaker connections SPEAKER OUTPUT BRIDGED BRIDGED 1CH 2CH 3CH 4CH 4ch amp PB844 POWER INPUT 12V REM GND pann L speaker MINIMUN SPEAKER IMPEDANCE 40HMS speaker connections 2ch amp PB744 Stereo Output Mode lt gt lt 2 RIGHT speaker LEFT speaker Bridged Mono Output Mode speaker features and controls 4ch amp PB1644 CH1 2 crossover mode selector switch CH1 2 low pass frequency control CH1 2 bass boost level control CH1 2 high pass f
8. EAR speaker Bridged Dual Mono Output Mode fo SPEAKER OUTPUT Gi POWER INPUT e BRIDGED ar ans BRIDGED 12V REM GND 1CH 2CH 3CH 4CH features and specifications 4Ach amp PB844 when used with normal full range systems set this switch to FULL If you wish the internal crossover to power a driver of specific frequency range use the LOWPASS or HIGHPASS settings when the crossover selector switch is in low pass mode this control sets the upper frequency limit for audio program sent to the speakers when the crossover selector switch is in high pass mode this control sets the upper frequency limit for audio program sent to the speakers use this control to match the outputs of you head unit to the amplifier Starting with your head unit set at about the 2 o clock position increase the amp level control until distortion begins to occur and reduce slightly from this point his amp features gold plate RCA input jacks for high impedance input Use these with car stereo output which uses RCA type connector cables if your car stereo lacks RCA type output jacks you may connect speaker output leads to these input connectors his control permits adjustment of the bass level up to an increase of approximately 18 dB his indicator is illuminated when power is applied his indicator is illuminated when built in protection circuitry is activated he fuse protects the amplifier and
9. XL mm inches 100Watts X 4 200Watts X 2 500Watts x 4 10Hz 70KHz 10K Ohms 100 Ohms 200mV 14 4V DC Neg Ground 10 5 16V 2 4 Ohms 4 8 Ohms 80A 222X 48X 450 8 88X 1 92X 18 1 mono connections 4ch amp PB844 PB1644 4ch mono input connections using low level inputs LEFT REAR Audio Outputs 2ch mono minput connections using low level inputs LINE INPUT cits HPF LPF y oyeg BASS EQ LEVEL Vr QQ O O ORON O woo X OVER te 5 Y adaptors 2 4 channel BPN connections 4ch amp B844 PB1644 2ch input connections using low level inputs leetrical connections 2ch amp PB744 12V battery head unit SBeo0o0g900 to remote turn on 12V electrical connections 4ch amp PB844 SPEAKER OUTPUT POWER INPUT BRIDGED Toe BRIDGED 12V REM GND 1CH 2CH 3CH 4CH 7 12V battery head unit Bea0c0o000 m to remote turn on 12V monoimput connections 2ch amp PB744 using low level inputs LINE INPUT LINE_OUT fo PROTECT BASS EQ REMOTE HPF a ear LEVEL 290080 fy eS sss SSS SSS SSS To a sencond amplifier Oo a aoadad pe _ a
10. congratulations On your purchase of a Pyramid Signature Series amplifier This amplifier extends the pyramid tradition into a totally new series of amps designed from the ground up to deliver the power performance and flexibility the modern car audio enthusiast demands When you check the list of features offered by the PB744 PB844 and PB1644 you ll know you made the right choice with a Pyramid Power amplifier precautions Do not operate the amplifier when it is unmounted Attach all audio system components securely within the automobile to prevent damage especially in an accident Do not mount this amplifier so that the wire connections are unprotected or in a pinched condition or likely to be damaged by nearby objects 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 do so only with a fuse identical to that supplied with the amplifier Using a fuse of a different type or rating may result in damage that isn t covered in the manufacturer s warranty notes protection circuitry The built in protection circuitry in the Pyramid Signature amplifiers will disable the amplifier if it senses an input overload a speaker short circuit or extreme temperature conditions When the protection circuit is activated by
11. e amplifier these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss output power 14 4v DC 1KHz RMS Power 4 ohms RMS Power 2 ohms Maximun Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions W XH XL mm inches ations B744 100Watts x 2 250Watts X 2 10Hz 70KHz 10K Ohms 100 Ohms 200 mV 14 4V DC Neg Ground 10 5 16V 2 4 Ohms 4 8 Ohms 15AX2 292 48X 251 11 7X 1 92 10 0 4CH Output Mode speaker connections 4ch amp PB1644 SPEAKER OUTPUT us BRIDGED BRIDGED 1CH 2CH 3CH 4CH I I LN IN I I ele w POWER INPUT 42V REM GND mm e SSS SS Lt FRONT speaker R L REAR speaker Bridged Dual Mono Output Mode o SPEAKER OUTPUT BISE POWER INPUT S p BRIDGED vr a BRIDGED 142V REM GND 1CH 2CH 3CH 4CH J o MM God aan AAAA foLolofololelele MINIMUN R SPEAKER IMPEDANCE 4OHMS speaker speaker connections 4ch amp PB844 2CH Bridged Output Mode with Subwoofer Output o O SPEAKER OUTPUT FUSE POWER INPUT e Aa BRIDGED Rta BRIDGED 412V REM GND ZACH H 2CH 3CH 4CH O o ol
12. on Short Circuit Protection Anti Thump Turn On mounting and installation Your new Pyramid Signature Series amplifier comes complete with required mounting hardware When determining a suitable location in your vehicle for the amp please remember that it is a high power electronic device capable of generating high heat For this reason always choose a location in your vehicle which has low vibration adequate ventilation a minimum of dust and no moisture Be sure to mount the ampin such a manner as to allow reasonable airflow over the cooling fins Mark the location for the mounting screw holesby positioning the amp where you wish to install itand use a scribe or one of the mounting screws inserted in each of the mounting holes to mark the mounting surface for the mounting surface If the mounting surface is carpeted measure the hole centers and mark with a felt tip pen Before attempting to drill the mounting holes take note of any wires lines or otherdevices in your vehicle which may be located behind the mounting surface Thendrill pilot holes in the mounting surface for the mounting screws and insert them Tighten the screws securely When making electrical connections to your amplifier please observe the following Use at least 8 gauge wire for power and ground connections Wire the amplifier directly to the car battery For the ground connection use the shortest possible wire to a good chassis ground point Wire the Remote
13. ost power LED protection LED power fuse power terminals speaker connections features and specific 2ch amp PB when used with normal full range systems set this switch to FULL If you wish the internal crossover to power a driver of specific frequency range use the LOWPASS or HIGHPASS settings use this control to match the outputs of you head unit to the amplifier Starting with your head unit set at about the 2 o clock position increase the amp level control until distortion begins to occur and reduce slightly from this point when the crossover selector switch is in low pass mode this control sets the upper frequency limit for audio program sent to the speakers when the crossover selector switch is in high pass mode this control sets the upper frequency limit for audio program sent to the speakers this control permits adjustment of the bass level up to an increase of approximately 18 dB this amp features gold plate RCA input jacks for high impedance input Use these with car stereo output which uses RCA type connector cables Plug in the Remote Bass Control wire in here this indicator is illuminated when power is applied this indicator is illuminated when built in protection circuitry is activated the fuse protects the amplifier and your car s electrical system from short circuit conditions use these connectors to deliver power ground and remote turn on control to th
14. requency control CH1 2 level inputs protection LED y CH1 2 input level control ee channel selectorl switch HPF LPF cover BASSEQ LEVEL Mope ae prorect JE wanna ants PERNT aaan N ees Z 4 i 4 4 2CH ACI A doha Aakhe se sohe X OWER oae isas sv 0 20 gt C C output level remote bass boost CH3 4 level inputs CH3 4 bass boost level control CH3 4 input level contro power CH3 4 high pass frequency control CH3 4 low pass frequency control CH3 4 crossover mode selector control CH3 4 speaker connections power fuse ower terminals CH 1 2speaker connections P O a OUTPUT FURE WER INPUT O BRIDGED Rau BRIDGED F 42V REM GND 1CH 2CH 3CH 4CH crossover mode selector low pass frequency control high pass frequency control input level control low level inputs high level inputs bass boost level control power LED protection LED power fuse power terminals speaker connections features and specifications amp PB1644 Ach when used with normal full range systems set this switch to FULL If you wish the internal crossover to power a driver of specific frequency range use the LOWPASS or HIGHPASS settings when the crossover selector switch is in low pass mode this control sets the upper frequency limit for audio program sent to the speakers when the crossover selec
15. tor switch is in high pass mode this control sets the upper frequency limit for audio program sent to the speakers use this control to match the outputs of you head unit to the amplifier Starting with your head unit set at about the 2 o clock position increase the amp level control until distortion begins to occur and reduce slightly from this point this amp features gold plate RCA input jacks for high impedance input Use these with car stereo output which uses RCA type connector cables if your car stereo lacks RCA type output jacks you may connect speaker output leads to these input connectors this control permits adjustment of the bass level up to an increase of approximately 18 dB this indicator is illuminated when power is applied this indicator is illuminated when built in protection circuitry is activated the fuse protects the amplifier and your car s electrical system from short circuit conditions use these connectors to deliver power ground and remote turn on control to the amplifier these terminals are 14K gold plated to guarantee high cBnductivity and minimum signal loss output power 14 4v DC 1KHz RMS Power 4 ohms RMS Power 2 ohms Maximum Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions W XH
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