Operational Details Linkable Mono Block Class-D Class-D SRA2400D FEATURE OVERVIEW 1 Ohm Stable D Class Amplifier Design Gold/Silver Plated Audio Input and Output Connections Accurate Stated Amplifier Ratings Bass Remote Controller Included Variable Bass Boost 0 - +15dB Gold/Silver Plated RCA Output for multi-amp Installations Varable Subsonic Filter from 20Hz - 55Hz Gold/Silver Plated Dual 8 Gauge Speaker Output Connections Gold/Silver Plated 4 Gauge Power and Ground Connections Plase switch RCA INPUT Master AMP must be set "0 " position. Slave Amp (secondary) must Connect these RCA connectors to a head unit with a LOW LEVEL be set "180 " position. output connection. NOTE : When you try to link, you must set correct plase switch position : RCA OUTPUT MASTER AMP : Set to "0 " Use these RCA output connectors to connect to a secondary Slave AMP : Set to "180 " amplifier. This output is a selectable by the Crossover Selector switch Link-IN : Connect this RCA to Link-Out of MASTER Amplifier BASS BOOST Link-OUT : Connect this RCA to Link-IN of secondary (slave) Amplifier. This a variable control to increase the bass boost at 45Hz from 0 - +15dB of gain, adjust to suit. LEVEL This allows level adjustment of the input signal. Use this control Config (MASTER/Slave) Select switch to correctly match the amplifier. To set this control correctly, You must select this swtich according to Amplifier Role. turn the amplifier level to MIN and the head unit to 3/4 volume, In case of MASTER AMP : Set to MASTER position. with the BASS and TREBLE on zero, then slowly turn up this amplifier In case of Slave (Secondary) : Set to Slave position. level control towards towards the MAX end of the control. NOTE : If the sound becomes distorted, turn this control down. Bass Frequency This is vaviable control from 30Hz to 65Hz for Bass Boost. SUBSONIC FILTER This is a variable control that filters out all Sub Bass Frequencies CROSSOVER SELECTOR point at 18dB/octave. Set the apprpriate mode of operation. The 3 positions available are OFF, LP and HP. LOW PASS Set the crossover switch to LP when a subwoofer is connected. Ensure the crossover frequency is set at 100Hz or below. NOTE : Failure to do so could result in speaker damage. BASS REMOTE CONNECTOR +12V INPUT This port allows connection to the bass control which is included. This must be connected to the vehicle battery positive(+) terminal To allow bass level control of the amplifier, mount the bass control via a 4 gauge power cable and with an inline fuse or circuit breaker in a convenient location in the passenger compartment. at the battery end. NOTE : This is to be last wire to connect up during installation as POWER, STATUS AND THERMAL LED's damage could result. This shows if the amplifier has been correctly powered up, if any faults are present and if the amplifier has overheated. FUSES Please ensure correct type of fuse is fitted. REMOTE INPUT SPEAKER OUTPUT This terminal is for turning the amplifier on and off. This requires a See 1 channel installation diagram in this manual for correct switched postive (+)12V to power 'ON' the amplifier, this can be speaker connection. PLEASE NOTE : The two (-) terminals are found on the rear of the head unit in the form of a electric antenna internally wired in parallel inside the amplifier as well as the output, or a remote on output. If not available you can wire to the two (+) terminals. ACC position on the key. GROUND INPUT Connect directly to the vehicle's chassis via a 4 gauge power cable. NOTE : This is to be the first wire to connect when wiring up a amplifiers damage could result if this not done.
System Example Class-D SRA2400D Set Config switch : LP/LP SPL System Example Master Amplifier RCA input from Headunit Aux Output provides a lowpass signal for additional amplifier(s) Set Config switch : BY/BY A single LPL plugged into the Master amplifier controls the lowpass level of the master and Slave amplifiers. Slave Amplifier Set Config switch : BY/BY To additional Slave amplifier(s) The system to the left has a "master" SRA1200D amplifier that controls all the of signal processing for the "slave" SRA1200D amplifiers downstream. The LPL, bass boost, crossover and subsonic filter on the "msater" amplifier will effect all "slave" amplifiers. Please keep in mind each amplifier must still have its own sensitivity level individually adjusted reqardless if its a "master" or "slave" amplifier.
Link System Example You must follow below instruction in Link system Installation.. Class-D SRA2400D Special Note : 1. All functions can be a adjusted only by MASTER Amplifier after linking both Amplifiers. 2. This SRA2400D Unit is only "2 ohm stable". 3. You must use only "4 " impedance speaker because Amplifier will be loaded on 2 ohm load on each Amplifier when both Amplifiers (MASTER AMP & Slave AMP) are linking. 4. You must follow "link system instruction" as 1) MASTER AMP Config switch must be set at "MASTER" position. Phase switch must be set at "0 " position. 2) Slave AMP Config switch must be set at "Slave" position. Phase switch must be set at "180 " position. Otherwise, any of Amplifier & speaker will be defective. 5. You must take steps to strengthen the power-supply because linked Amplifier requires large amount of current (220A) 6. You can get 4 times output power thru linking system.
Operational Details FEATURE OVERVIEW 1 Ohm Stable D Class Amplifier Design Accurate Stated Amplifier Ratings Variable Bass Boost 0 - +15dB Varable Subsonic Filter from 20Hz - 55Hz Gold/Silver Plated 4 Gauge Power and Ground Connections Class-D SRA800.1D SRA1200.1D Gold/Silver Plated Audio Input and Output Connections Bass Remote Controller Included Gold/Silver Plated RCA Output for multi-amp Installations Gold/Silver Plated Dual 8 Gauge Speaker Output Connections LOW PASS Set the crossover switch to LP when a subwoofer is connected. Ensure the crossover frequency is set at 100Hz or below. CROSSOVER SELECTOR NOTE : Failure to do so could result in speaker damage. Set the apprpriate mode of operation, this switch affects the speaker output as well as the RCA output. The top selection options are fed SUBSONIC FILTER to the speaker output and the bottom selection options are fed to This is a variable control that filters out all Sub Bass Frequencies the RCA output connection. When FULL is selected th Crossover, point at 18dB/octave. Subsonic Filter and Bass functions are by-passed. RCA OUTPUT LEVEL Use these RCA output connectors to connect to a secondary This allows level adjustment of the input signal. Use this control to amplifier. This output is a selectable by the Crossover Selector correctly match the head unit to the amplifier. To set this control switch correctly, turn the amplifier leve to MIN and the head unit to 3/4 RCA INPUT volume, with the BASS and TREBLE on zero, then slowly turn up Connect these RCA connectors to a head unit with a LOW LEVEL this amplifier level control towards the MAX end of the control. output connection. NOTE : If the sound becomes distorted, turn this control down. BASS REMOTE CONNECTOR BASS BOOST This port allows connection to the bass control which is included. This a variable control to increase the bass boost at 45Hz from To allow bass level control of the amplifier, mount the bass control 0 - +15dB of gain, adjust to suit. in a convenient location in the passenger compartment. POWER, STATUS AND THERMAL LED's This shows if the amplifier has been correctly powered up, if any faults are present and if the amplifier has overheated. GROUND INPUT Connect directly to the vehicle's chassis via a 4 gauge power cable. NOTE : This is to be the first wire to connect when wiring up a amplifiers damage could result if this not done. +12V INPUT This must be connected to the vehicle battery positive(+) terminal via a 4 gauge power cable and with an inline fuse or circuit breaker at the battery end. NOTE : This is to be last wire to connect up during installation as damage could result. REMOTE INPUT This terminal is for turning the amplifier on and off. This requires a switched postive (+)12V to power 'ON' the amplifier, this can be found on the rear of the head unit in the form of a electric antenna output, or a remote on output. If not available you can wire to the ACC position on the key. FUSES Please ensure correct type of fuse is fitted. SPEAKER OUTPUT See 1 channel installation diagram in this manual for correct speaker connection. PLEASE NOTE : The two (-) terminals are internally wired in parallel inside the amplifier as well as the two (+) terminals.
System Example Class-D SRA800.1D SRA1200.1D Set Config switch : LP/LP SPL System Example Master Amplifier RCA input from Headunit Aux Output provides a lowpass signal for additional amplifier(s) Set Config switch : BY/BY A single LPL plugged into the Master amplifier controls the lowpass level of the master and Slave amplifiers. Slave Amplifier Set Config switch : BY/BY To additional Slave amplifier(s) The system to the left has a "master" SRA1200D amplifier that controls all the of signal processing for the "slave" SRA1200D amplifiers downstream. The LPL, bass boost, crossover and subsonic filter on the "msater" amplifier will effect all "slave" amplifiers. Please keep in mind each amplifier must still have its own sensitivity level individually adjusted reqardless if its a "master" or "slave" amplifier.
FEATURE OVERVIEW 2 Channel SRA100.2 SRA170.2 SRA200.2 SRA250.2 SRA300.2 2 Ohm Stable MOSFET Amplifier Design SIERRA Intercooled Semi-conductor Technology Accurate Stated Amplifier Ratings Gold/Silver Plated 4 Gauge Powwer and Ground Connections Variable Bass Boost 0 - +18dB Gold/Silver Plated Audio Input and Output Connections Varable LP and HP Electronic X-OVER @ 18dB/octave Bass Remote Controller available (not included) Varable Subsonic Filter from 20Hz - 55Hz Gold Plated RCA Output for multi-amp Installations SIERRA Regulted Amplifier Technology HIGH PASS RCA OUTPUT Set the crossover switch to HP and turn this control to 65Hz Use these RCA output connectors to connect to a secondary or above when using speaker's smaller than 6 x 9", this feature amplifier. This output PASS-THRU connection derived from the is designed to filter out all low bass frequencies that only RCA input connector so the signal level and frequency response SUBWOOFERS should produce. NOTE : Failure to do so could is the same as the original input signal. result in speaker damage. RCA INPUT Connect these RCA connectors to a head unit with a LOW LEVEL LOW PASS Output connection. Set the crossover switch to LP when a subwoofer is connected. Ensure the crossover frequency is set at 100Hz or below, this LEVEL feature is designed to filter out all mid to high frequencies that This allows level adjustment of the input signal. Use this control only FULL RANGE speakers should produce. NOTE : Failure to do to correctly match the amplifier. To set this control correctly, so could result in speaker damage. turn the amplifier level to MIN and the head unit to 3/4 volume, with the BASS and TREBLE on zero, then slowly turn up this CROSSOVER SELECTOR amplifier level control towards towards the MAX end of the Set the apprpriate mode of operation. The 3 positions available control. NOTE : If the sound becomes distorted, turn this are OFF, LP and HP. control down. POWER, STATUS AND THERMAL LED's BASS BOOST This shows if the amplifier has been correctly powered up and if This a variable control to increase the bass boost at 45Hz from any faults are present. 0 - +15dB of gain, adjust to suit. BASS REMOTE CONNECTOR This port allows connection th the (optional) bass control. +12V INPUT This must be connected to the vehicle battery positive(+) terminal BASS REMOTE CONNECTOR via a 4 gauge power cable and with an inline fuse or circuit breaker Use the switch to activate or de-activate the (optional) bass controller. at the battery end. NOTE : This is to be last wire to connect up during installation as damage could result. GROUND INPUT Connect directly to the vehicle's chassis via a 4 gauge power cable. FUSES NOTE : This is to be the first wire to connect when wiring up a amplifiers Please ensure correct type of fuse is fitted. damage could result if this not done. SPEAKER OUTPUT REMOTE INPUT See 2/1 channel installation diagrams in this manual for correct This terminal is for turning the amplifier on and off. This requires a switch speaker connection. postive (+)12V to power 'ON' the amplifier, this can be found on the rear of the head unit in the form of a electric antenna output, or a remote on output. If not available you can wire to the ACC position on the key.
System Example (Bridged Mode) 2 Channel SRA100.2 SRA170.2 SRA200.2 SRA250.2 SRA300.2 System Example (Stereo Mode) Troubleshooting Symptoms Check Cure Amplifier turns off at Check speakers for damage Have your dealer inspect low volume levels. or short circuit. the speakers No sound. Is the power LED I lluminated? Is the power LED I lluminated? Be sure 12V remote lead is connected. Check signal leads. Check gain control. Check tuner/deck volume level. Clean contacts on fuse holders. Check for speaker short circuit or Have your dealer inspect the speakers. amplifiers overheating. No sound in one Check speaker leads. Inspect for short circuit or an channel. open connection. Check audio leads. Reverse left and right RCA Inputs to determine if problem is occurring before the amplifier Amplifier turning off at Check speaker load impedance. Be sure speaker load impedance medium or high recommendations are observed. (If you volume levels. use an ohmmeter to check speaker resistance, please remember that DC resistance and AC impedance may not be the same.)
FEATURE OVERVIEW 2 Channel SRA400.2 2 Ohm Stable MOSFET Amplifier Design SIERRA Intercooled Semi-conductor Technology Accurate Stated Amplifier Ratings Gold/Silver Plated 4 Gauge Powwer and Ground Connections Variable Bass Boost 0 - +18dB Gold/Silver Plated Audio Input and Output Connections Varable LP and HP Electronic X-OVER @ 18dB/octave Bass Remote Controller available (not included) Varable Subsonic Filter from 20Hz - 55Hz Gold Plated RCA Output for multi-amp Installations SIERRA Regulted Amplifier Technology BASS BOOST RCA OUTPUT This a variable control to increase the bass boost at 45Hz from Use these RCA output connectors to connect to a secondary 0 - +15dB of gain, adjust to suit. amplifier. This output PASS-THRU connection derived from the HIGH PASS RCA input connector so the signal level and frequency response Set the crossover switch to HP and turn this control to 65Hz is the same as the original input signal. or above when using speaker's smaller than 6 x 9", this feature RCA INPUT is designed to filter out all low bass frequencies that only Connect these RCA connectors to a head unit with a LOW LEVEL SUBWOOFERS should produce. NOTE : Failure to do so could Output connection. result in speaker damage. LEVEL This allows level adjustment of the input signal. Use this control to correctly match the amplifier. To set this control correctly, turn the amplifier level to MIN and the head unit to 3/4 volume, with the BASS and TREBLE on zero, then slowly turn up this amplifier level control towards towards the MAX end of the control. NOTE : If the sound becomes distorted, turn this control down. LOW PASS Set the crossover switch to LP when a subwoofer is connected. Ensure the crossover frequency is set at 100Hz or below, this feature is designed to filter out all mid to high frequencies that only FULL RANGE speakers should produce. NOTE : Failure to do so could result in speaker damage. CROSSOVER SELECTOR Set the apprpriate mode of operation. The 3 positions available SUBSONIC FILTER are OFF, LP and HP. This is a variable control that filters out all Sub Bass Frequencies point at 18dB/octave. POWER, STATUS AND THERMAL LED's at the battery end. NOTE : This is to be last wire to connect up This shows if the amplifier has been correctly powered up and if during installation as damage could result. any faults are present. REMOTE INPUT BASS REMOTE CONNECTOR This terminal is for turning the amplifier on and off. This requires a This port allows connection th the (optional) bass control. switched postive (+)12V to power 'ON' the amplifier, this can be found on the rear of the head unit in the form of a electric BASS REMOTE CONNECTOR antenna output, or a remote on output. If not available you can Use the switch to activate or de-activate the (optional) bass controller. wire to the ACC position on the key. GROUND INPUT FUSES Connect directly to the vehicle's chassis via a 4 gauge power cable. Please ensure correct type of fuse is fitted. NOTE : This is to be the first wire to connect when wiring up a amplifiers damage could result if this not done. SPEAKER OUTPUT See 2/1 channel installation diagrams in this manual for correct +12V INPUT speaker connection. This must be connected to the vehicle battery positive(+) terminal via a 4 gauge power cable and with an inline fuse or circuit breaker
System Example (Bridged Mode) 2 Channel SRA400.2 System Example (Stereo Mode) Troubleshooting Symptoms Check Cure Amplifier turns off at Check speakers for damage Have your dealer inspect low volume levels. or short circuit. the speakers No sound. Is the power LED I lluminated? Is the power LED I lluminated? Be sure 12V remote lead is connected. Check signal leads. Check gain control. Check tuner/deck volume level. Clean contacts on fuse holders. Check for speaker short circuit or Have your dealer inspect the speakers. amplifiers overheating. No sound in one Check speaker leads. Inspect for short circuit or an channel. open connection. Check audio leads. Reverse left and right RCA Inputs to determine if problem is occurring before the amplifier Amplifier turning off at Check speaker load impedance. Be sure speaker load impedance medium or high recommendations are observed. (If you volume levels. use an ohmmeter to check speaker resistance, please remember that DC resistance and AC impedance may not be the same.)
FEATURE OVERVIEW 4 Channel SRA100.4 SRA130.4 SRA150.4 SRA170.4 SRA200.4 SRA250.4 2 Ohm Stable MOSFET Amplifier Design Accurate Stated Amplifier Ratings Variable Bass Boost 0 - +18dB Varable LP and HP Electronic X-OVER @ 18dB/octave Varable Subsonic Filter from 20Hz - 55Hz SEIRRA Intercooled Semi-conductor Technology Gold/Silver Plated 4 Gauge Powwer and Ground Connections Gold/Silver Plated Audio Input and Output Connections SIERRA Efficient Heat Sink Transfer Technology Gold/Silver Plated RCA Output for multi-amp Installations RCA OUTPUT LEVEL Use these RCA output connectors to connect to a secondary This allows level adjustment of the input signal. Use this control amplifier. This output SUMMED OUTPUT connection derived from to correctly match the amplifier. To set this control correctly, the front RCA input and the rear RCA input connectors. turn the amplifier level to MIN and the head unit to 3/4 volume, REAR RCA INPUT with the BASS and TREBLE on zero, then slowly turn up this Connect these RCA connectors to the rear LOW LEVEL output amplifier level control towards towards the MAX end of the control. connection from the headunit. NOTE : If the sound becomes distorted, turn this control down. FRONT RCA INPUT Connect these RCA connectors to the front LOW LEVEL output HIGH PASS connection from the headunit. Set the crossover switch to HP and turn this control to 65Hz or above when using speaker's smaller than 6 x 9", this feature Input selection is designed to filter out all low bass frequencies that only For four channel operations with two channel input signals, you SUBWOOFERS should produce. NOTE : Failure to do so could must select the '2Ch' input signals, you must select the '2Ch' result in speaker damage. input switch position. For audio systems with four channel RCA output, you should select the '4Ch' position. LOW PASS Set the crossover switch to LP when a subwoofer is Output selection connected. Ensure the crossover frequency is set at 100Hz or You can choose which pair of inputs you wish to use by switching below, this feature is designed to filter out all mid to high the 'output select' switch to the appropriate position. frequencies that only FULL RANGE speakers should produce. NOTE : Failure to do so could result in speaker damage. CROSSOVER SELECTOR REMOTE INPUT Set the apprpriate mode of operation. The 3 positions available are OFF, LP and HP. This terminal is for turning the amplifier on and off. This requires a switched postive (+)12V to power 'ON' the amplifier, this can BASS BOOST be found on the rear of the head unit in the form of a electric This a variable control to increase the bass boost at 45Hz from antenna output, or a remote on output. If not available you 0 - +18dB of gain, adjust to suit. can wire to the ACC position on the key. POWER, STATUS AND THERMAL LED's +12V INPUT This shows if the amplifier has been correctly powered up, if any faults are present. This must be connected to the vehicle battery positive(+) terminal via a 4 gauge power cable and with an inline fuse or BASS REMOTE CONNECTOR circuit breaker at the battery end. NOTE : This is to be last Use the switch to activate or de-activate the (optional) bass controller. wire to connect up during installation as damage could result. BASS REMOTE CONNECTOR FUSES This port allows connection th the (optional) bass control. Please ensure correct type of fuse is fitted. GROUND INPUT SPEAKER OUTPUT Connect directly to the vehicle's chassis via a 4 gauge power cable. See 4/3/2 channel installation diagrams in this manual for NOTE : This is to be the first wire to connect when wiring up correct speaker connection. a amplifiers damage could result if this not done.
POWER CABLE CALCULATOR 4 Channel SRA100.4 SRA130.4 SRA150.4 SRA170.4 SRA200.4 SRA250.4 Total Amperage 0-4ft 4-7ft 7-10ft 10-13ft 13-16ft 16-19ft 19-22ft 22-28ft 0-20 14 12 12 10 10 8 8 8 20-35 12 10 8 8 6 6 6 4 35-50 10 8 8 6 4 4 4 4 50-65 8 8 6 4 4 4 4 2 65-85 6 6 4 4 2 2 2 0 85-105 6 6 4 2 2 2 2 0 105-125 4 4 4 2 0 0 0 0 125-150 2 2 2 0 0 0 0 0 The above chart shows cable gauges to be used, if no less than a 0.5 volt drop is acceptable. If aluminum wire or tinned wire is used, the gauges sould be of an even larger size to compensate. Cable gauge size calculation takes into account terminal connection resistance. 1 Metre = 3.28 Feet 4 Channel Installation 3 Channel Installation 2 Channel Installation
FEATURE OVERVIEW 4 Channel SRA200.4 SRA250.4 2 Ohm Stable MOSFET Amplifier Design Accurate Stated Amplifier Ratings Variable Bass Boost 0 - +18dB Varable LP and HP Electronic X-OVER @ 18dB/octave Varable Subsonic Filter from 20Hz - 55Hz SEIRRA Intercooled Semi-conductor Technology Gold/Silver Plated 4 Gauge Powwer and Ground Connections Gold/Silver Plated Audio Input and Output Connections SIERRA Efficient Heat Sink Transfer Technology Gold/Silver Plated RCA Output for multi-amp Installations RCA OUTPUT LEVEL Use these RCA output connectors to connect to a secondary This allows level adjustment of the input signal. Use this control amplifier. This output SUMMED OUTPUT connection derived from to correctly match the amplifier. To set this control correctly, the front RCA input and the rear RCA input connectors. turn the amplifier level to MIN and the head unit to 3/4 volume, REAR RCA INPUT with the BASS and TREBLE on zero, then slowly turn up this Connect these RCA connectors to the rear LOW LEVEL output amplifier level control towards towards the MAX end of the control. connection from the headunit. NOTE : If the sound becomes distorted, turn this control down. FRONT RCA INPUT Connect these RCA connectors to the front LOW LEVEL output HIGH PASS connection from the headunit. Set the crossover switch to HP and turn this control to 65Hz or above when using speaker's smaller than 6 x 9", this feature Input selection is designed to filter out all low bass frequencies that only For four channel operations with two channel input signals, you SUBWOOFERS should produce. NOTE : Failure to do so could must select the '2Ch' input signals, you must select the '2Ch' result in speaker damage. input switch position. For audio systems with four channel RCA output, you should select the '4Ch' position. LOW PASS Set the crossover switch to LP when a subwoofer is Output selection connected. Ensure the crossover frequency is set at 100Hz or You can choose which pair of inputs you wish to use by switching below, this feature is designed to filter out all mid to high the 'output select' switch to the appropriate position. frequencies that only FULL RANGE speakers should produce. NOTE : Failure to do so could result in speaker damage. CROSSOVER SELECTOR +12V INPUT Set the apprpriate mode of operation. The 3 positions available are OFF, LP and HP. This must be connected to the vehicle battery positive(+) terminal via a 4 gauge power cable and with an inline fuse or BASS BOOST circuit breaker at the battery end. NOTE : This is to be last This a variable control to increase the bass boost at 45Hz from wire to connect up during installation as damage could result. 0 - +18dB of gain, adjust to suit. REMOTE INPUT POWER, STATUS AND THERMAL LED's This terminal is for turning the amplifier on and off. This requires This shows if the amplifier has been correctly powered up, if any faults are present. a switched postive (+)12V to power 'ON' the amplifier, this can be found on the rear of the head unit in the form of a electric BASS REMOTE CONNECTOR antenna output, or a remote on output. If not available you Use the switch to activate or de-activate the (optional) bass controller. can wire to the ACC position on the key. BASS REMOTE CONNECTOR FUSES This port allows connection th the (optional) bass control. Please ensure correct type of fuse is fitted. GROUND INPUT SPEAKER OUTPUT Connect directly to the vehicle's chassis via a 4 gauge power cable. See 4/3/2 channel installation diagrams in this manual for NOTE : This is to be the first wire to connect when wiring up correct speaker connection. a amplifiers damage could result if this not done.
POWER CABLE CALCULATOR 4 Channel SRA200.4 SRA250.4 Total Amperage 0-4ft 4-7ft 7-10ft 10-13ft 13-16ft 16-19ft 19-22ft 22-28ft 0-20 14 12 12 10 10 8 8 8 20-35 12 10 8 8 6 6 6 4 35-50 10 8 8 6 4 4 4 4 50-65 8 8 6 4 4 4 4 2 65-85 6 6 4 4 2 2 2 0 85-105 6 6 4 2 2 2 2 0 105-125 4 4 4 2 0 0 0 0 125-150 2 2 2 0 0 0 0 0 The above chart shows cable gauges to be used, if no less than a 0.5 volt drop is acceptable. If aluminum wire or tinned wire is used, the gauges sould be of an even larger size to compensate. Cable gauge size calculation takes into account terminal connection resistance. 1 Metre = 3.28 Feet 4 Channel Installation 3 Channel Installation 2 Channel Installation
5 Channel Feature Guide SRA5500 (1) LINE INPUT : This allows connection to any head unit that has a RCA outputs. (2) Sub-selector switch : The sub outputs signal is a sum of the Ch1+2(Front) and ch3+4(rear) outputs. All three inputs will accept signal for use with a head unit with three preamp outputs. (3)(9)(12) CROSSOVER SELECTOR : Set the appropriate mode of operation. The 3 positions available are FLAT, HIGH PASS and LOW PASS. (4) Input Selector switch : 1) When set to "2Ch" position, the front Inputs (Ch1+2) will provide signal for the entire Amplifier. 2) When set to "4Ch" position, both the front and rear inputs will accept signal allowing the use of head unit fader. (5)(7)(11) "High-Pass" frequency control : This control is active when the switch is set to "Hi-pass" and permits selection of the desired crossover frequency. (5)(7)(11) "Low-Pass" frequency control : This control is active when the switch is set to "Low-pass" and permits selection of the desired crossover frequency. (6)(8)(10) LEVEL : This allows level adjustment of the input signal. Use this control to correctly match the head unit to 3/4 volume, with the BASS and TREBLE on zero, then slowly turn up the amplifier level control towards the MAX end of the control, NOTE : If the sound becomes distorted, turn this control down. (13) PROTECTION LED : When illuminated it indicates a fault has occurred. Check installation. (13) POWER LED : When illuminated the amplifier is turned on. (14) GROUND : Connect directly to the vehicle's chassis. NOTE : This is to be the first wire to hook up during installation as damage could result. (15) REMOTE : This terminal is for turning the amplifier on and off. This requires a requires a switched positive (+12V) to power "on" the amplifier, this can be found on the rear of the head unit in the form of a electric antenna output, or a remote on output. Of not available you can wire to the ACC position on the key. (16) +12V : This must be connected directly th the vehicle batteries positive(+) terminal via an inline fuse at the battery end. Note : This is to be the lasst wire to hook up during installation as damage could result. (17) FUSE : Please ensure correct type of fuse is fitted, as specified in this manual. (18) Loudspeaker connections : (If the amplifier is to be connected in a bridged mode, proceed with the section "Bridged loudspeaker connections".) As with any audio component, connection of the amplifier and speakers with the correct polarity is essential for goods bass reproduction. Ensure there fore when connection that the positive (+) loudspeaker terminal. The same applies to the negative (-) terminals. The left-hand amplifier channel must also be connected to the left-hand loudspeaker and the right-hand the right-hand amplifier channel to the right-hand loudspeaker. Bridged loudspeaker connections : The AMP can also be bridge in a mono configuration. This enables you to use the amplifier for one or more subwoofer(s) or amid-range speaker. In this configuration the amplifier sums the right-hand and oeft-hand channels, delivering a single channel (mono) output. Note : The amplifier can sum the right-and oeft-hand signal information only both the right-and left-hand RCA connections have been made. CAUTION : The amplifier must be presented with a load of 4 Ohms or higher in bridged mode. A lower load will cause the amplifier to overheat or switch off. This can lead to permanent damage of the unit
System Example SRA5500 5 Channel Installation 4 Channel Installation 3 Channel Installation
Specifications SRA100.2 SRA170.2 SRA200.2 SRA250.2 SRA300.2 SRA400.2 Output power (14.4V) 2 into 4 Ohms 50W x 2Ch 85W x 2Ch 100W x 2Ch 125W x 2Ch 150W x 2Ch 200W x 2Ch 2 into 2 Ohms 80W x 2Ch 135W x 2Ch 160W x 2Ch 200W x 2Ch 240W x 2Ch 320W x 2Ch Bridged 4 Ohms 150W x 1Ch 250W x 1Ch 300W x 1Ch 375W x 1Ch 450W x 1Ch 600W x 1Ch Frequency Response 20Hz ~ 22KHz 20Hz ~ 22KHz 20Hz ~ 22KHz 20Hz ~ 22KHz 20Hz ~ 22KHz 20Hz ~ 22KHz S/N Ratio > 95dB > 90dB > 95dB > 90dB > 95dB > 95dB T.H.D < 0.03 % < 0.05 % < 0.03 % < 0.05 % < 0.03 % < 0.03 % Input Sense Separation LP Variable X-Over HP Variable X-Over Variable Bass Boost Variable Subsonic Input Inpedance Damping Factor 100mV - 8V < 60 db 40Hz ~ 160Hz @18dB/Octave 40Hz ~ 160Hz @18dB/Octave 0~+18dB at 45Hz 20Hz~55Hz 20 > 200 Output power (14.4V) 2 into 4 Ohms 2 into 2 Ohms Bridged 4 Ohms Frequency Response S/N Ratio T.H.D Input Sense Separation LP Variable X-Over HP Variable X-Over Variable Bass Boost Variable Subsonic Input Inpedance Damping Factor SRA100.4 SRA130.4 SRA150.4 SRA200.4 SRA250.4 50W x 4Ch 65W x 4Ch 75W x 4Ch 100W x 4Ch 125W x 4Ch 75W x 4Ch 105W x 4Ch 120W x 4Ch 160W x 4Ch 200W x 4Ch 150W x 2Ch 195W x 2Ch 225W x 2Ch 300W x 2Ch 375W x 2Ch 20Hz ~ 22KHz 20Hz ~ 22KHz 20Hz ~ 22KHz 20Hz ~ 22KHz 20Hz ~ 22KHz > 90dB > 95dB > 90dB > 90dB > 95dB < 0.05 % < 0.03 % < 0.05 % < 0.05 % < 0.03 % 100mV - 8V < 60 db 40Hz ~ 160Hz @18dB/Octave 40Hz ~ 160Hz @18dB/Octave 0~+18dB at 45Hz 20Hz~55Hz 20 > 200 SRA5500 SRA2400D Linkable SRA1200.1D SRA800.1D Front and Rear Channels : Into 4 ohms @ 12.5 (IASCA) / 14.4 VDC Into 2 ohms @ 14.4 VDC Bridged into 4 ohms @ 14.4 VDC Sub Channel : Into 4 ohms @ 12.5 (IASCA) / 14.4 VDC Into 2 ohms @ 14.4 VDC Total Harmonic Distortion Frequency Response Singal to Noise Ratio (20Hz to 20KHz) Signal Input Sensitivity DC Input Voltage Range Typical current draw at idle Highpass Crossover Slopes Lowpoass Crossover Slope Crossover Range Minimum Load Stability for all channels 65W x 4 800W x 1 500W x 1 300W x 1 100W x 4 1600W x 1 1000W x 1 600W x 1 200W x 2 200W x 1 350W x 1 <0.02 % 1dB 10Hz to ±1dB 20Hz to 330Hz >100dB >90dB 300 200 millivots to 8 volts 10 Vdc to 15.5 Vdc <1.5 amps 12dB per Octave 0 TO 15dB @ 45Hz 12dB per Octave 18dB per Octave 40 to 250Hz 30 to 300Hz 2 ohms 2 ohms