Class-D Amplifiers (339)

Diamond Audio HXM800.2D 2-Channel 800 Watts RMS Class D Full-Range HXM Series Amplifier The Diamond Audio HXM800.2D is a marine-grade motorsport amplifier that boasts 800 watts RMS on a single channel. Perfect for your system that needs to push a subwoofer to the max while using minimal space. General Features: Motorsport Series 2-Channel Full-Range Class-D Marine Amplifier Power Output: 300W RMS x 2 @ 4Ω 400W RMS x 2 @ 2Ω 800 W x 1 @ 4Ω bridged Ultra-compact, high-density aluminum alloy chassis provides superior thermal stability Four-layer, glass epoxy circuit board for enhanced performance and reliability Circuit board conformal coated (water resistant) for marine applications Full Range Class D amplifier technology Bridgeable for high power operation Balanced differential inputs for superior noise rejection Input sensitivity from 200mV to 10V accepts Line (RCA) and Speaker level input Selectable auto-turn-on modes: Signal Sensing (VOX),12V Remote (REM), and DC offset (DC) Fully variable, 12 dB per octave, electronic crossover Full range, line-level outputs provided to send a signal to another amplifier Adjustable Bass EQ (MICRO-USB) to connect our optional Bluetooth receiver-controller Top-mounted controls for convenient adjustment Integrated soft clip light for quick system set-up Illuminated logo THD: 0.05% S/N Ratio: < 77.2 dB Low Input Level: 0.2mV - 10.0V Bandwith: 10Hz-35Hz Variable High-Pass: 40-400Hz @ 12dB / Oct Variable Low-Pass: 40-400Hz @ 12dB / Oct Bass Remote Included Dimensions: 9.74"L x 5.27"W x 1.75"H Authorized Internet Dealer 1-year Manufacturer's Warranty ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Diamond Audio MICRO4V2 Micro Series 600W 4-Channel Class-D Car Audio Amplifier Elite sound quality and superior power in an ultra-compact chassis. The Diamond Audio Micro4v2 4-channel power amplifier sets the standard for high-end Harley-specific amplifiers. Featuring ultra-efficient full-range class D topology and ICAD circuit that provides superior overload protection, these compact amplifiers deliver huge power for their size. Its compact design has the juice to power your system and will save you a ton of space in your car or transport whatever you need. The sound quality in a small footprint chassis can be found with Diamond Audio’s Micro series amplifiers. Featuring the ultra-efficient full-range Class D topology, these compact amplifiers deliver serious power making them the best in class. Installation possibilities are endless due to its size and power amplification output. Even with its small platform, performance and sound quality are never sacrificed with Micro amplifiers from Diamond Audio! General Features: Ultra-compact, high-density aluminum alloy chassis provides superior thermal stability. Four-layer, glass epoxy circuit board for enhanced performance and reliability Full Range Class D amplifier technology Bridgeable for high-power operation (CH1+CH2/CH3+CH4) Balanced differential inputs for superior noise rejection Input sensitivity from 200mV to 10V accepts Line (RCA) and Speaker level input Input selector switch (2 CH / 4 CH) Selectable auto-turn-on mode: Signal Sensing (VOX), 12V Remote (REM), and DC offset (DC) Fully variable, 12dB per octave, electronic crossovers Built-in BTR Port (MICRO-USB) to connect our optional Bluetooth receiver-controller Illuminated logo Specifications: RMS Power Rating: RMS Power (2Ω): 150W x 4 RMS Power (4Ω): 80W x 4 Bridged (mono 1Ω): N/A Bridged (mono 2Ω): N/A Bridged (mono 4Ω): 300W x 2 Topology: Full Range Class D Power Supply: Power Supply: Full PWM Power Supply Threshold: 10.0VDC - 17.0VDC Idle Current: (0.7A) Distortion: THD 4 (1KHx @ 4Ω): 0.5% S/N Ratio (A weighted @1W): -85dBA S/N Ratio (A weighted @FP): -101.1dBA Input Sensitivity: Low Input Level: 200mV - 10.0V High Input Level: N/A Input Impedance: Low Input Level: 20KΩ High Input Level: 20KΩ Output Stage: Output Impedance: 0.018Ω Damping Factor (50Hz@4Ω): >70 Bandwidth (-3dB): 10Hz - 35Hz Crossover (-12dB/Oct): Variable High-Pass: 40Hz - 400Hz Variable Low-Pass: 40Hz - 400Hz Variable Sun-Sonic: N/A Fuse Ratings: 40A Dimensions: 9.07” L x 4.0” W x 1.46” H ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Diamond Audio MICRO4V2 Micro Series 600W 4-Channel Class-D Car Audio Amplifier Elite sound quality and superior power in an ultra-compact chassis. The Diamond Audio Micro4v2 4-channel power amplifier sets the standard for high-end Harley-specific amplifiers. Featuring ultra-efficient full-range class D topology and ICAD circuit that provides superior overload protection, these compact amplifiers deliver huge power for their size. Its compact design has the juice to power your system and will save you a ton of space in your car or transport whatever you need. The sound quality in a small footprint chassis can be found with Diamond Audio’s Micro series amplifiers. Featuring the ultra-efficient full-range Class D topology, these compact amplifiers deliver serious power making them the best in class. Installation possibilities are endless due to its size and power amplification output. Even with its small platform, performance and sound quality are never sacrificed with Micro amplifiers from Diamond Audio! General Features: Ultra-compact, high-density aluminum alloy chassis provides superior thermal stability. Four-layer, glass epoxy circuit board for enhanced performance and reliability Full Range Class D amplifier technology Bridgeable for high-power operation (CH1+CH2/CH3+CH4) Balanced differential inputs for superior noise rejection Input sensitivity from 200mV to 10V accepts Line (RCA) and Speaker level input Input selector switch (2 CH / 4 CH) Selectable auto-turn-on mode: Signal Sensing (VOX), 12V Remote (REM), and DC offset (DC) Fully variable, 12dB per octave, electronic crossovers Built-in BTR Port (MICRO-USB) to connect our optional Bluetooth receiver-controller Illuminated logo Specifications: RMS Power Rating: RMS Power (2Ω): 150W x 4 RMS Power (4Ω): 80W x 4 Bridged (mono 1Ω): N/A Bridged (mono 2Ω): N/A Bridged (mono 4Ω): 300W x 2 Topology: Full Range Class D Power Supply: Power Supply: Full PWM Power Supply Threshold: 10.0VDC - 17.0VDC Idle Current: (0.7A) Distortion: THD 4 (1KHx @ 4Ω): 0.5% S/N Ratio (A weighted @1W): -85dBA S/N Ratio (A weighted @FP): -101.1dBA Input Sensitivity: Low Input Level: 200mV - 10.0V High Input Level: N/A Input Impedance: Low Input Level: 20KΩ High Input Level: 20KΩ Output Stage: Output Impedance: 0.018Ω Damping Factor (50Hz@4Ω): >70 Bandwidth (-3dB): 10Hz - 35Hz Crossover (-12dB/Oct): Variable High-Pass: 40Hz - 400Hz Variable Low-Pass: 40Hz - 400Hz Variable Sun-Sonic: N/A Fuse Ratings: 40A Dimensions: 9.07” L x 4.0” W x 1.46” H ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

  Diamond Audio HXM800.4D 4-Channel 800W RMS Class D Full-Range HXM Series Amplifier The Diamond Audio HXM800.4D is a marine-grade motorsport amplifier that boasts 800 watts RMS on a single channel. Perfect for your system that needs to push a subwoofer to the max while using minimal space. General Features: High-Density Aluminum Alloy Heat Sink with Backlit Logo Full Range Class D (IR) Chipset Four Layers PCB Design for Reduced Footprint Size Switchable 12dB HP/FLAT/LP Crossovers Integrated Soft Clip Light for Quick System Set-up BTR Port for Optional Bluetooth Receiver Control Total Power: 800W Power at 4-Ohm: 120W x 4-Ch Power at 2-Ohm: 200W x 4-Ch THD: 0.3% Frequency Response: 10Hz ~ 35kHz (-3dB) Signal-to-Noise Ratio: > -90dB Overall Efficiency: > 80% Input Sensitivity: 0.2 ~ 10.0V Dimensions: 9.35" x 5.27" x 1.75" ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

 Diamond Audio MICRO5V2 5-Channel 950W RMS Class D Car Motorcycle ATV Audio Amplifier Elite sound quality and superior power in an ultra-compact chassis. The Diamond Audio Micro4v2 5-channel power amplifier sets the standard for high-end Harley-specific amplifiers. Featuring ultra-efficient full-range class D topology and ICAD circuit that provides superior overload protection, these compact amplifiers deliver huge power for their size. Its compact design not only has the juice to power your system but will also save you a ton of space in your car or transport whatever you need it. The sound quality in a small footprint chassis can be found with Diamond Audio’s Micro series amplifiers. Featuring the ultra-efficient full-range Class D topology, these compact amplifiers deliver serious power making them the best in class. Installation possibilities are endless due to its size and power amplification output. Even with its small platform, performance and sound quality are never sacrificed with Micro amplifiers from Diamond Audio! General Features: Ultra-compact high-density aluminum alloy chassis provide superior thermal stability. Four-layer, a glass circuit board for enhanced performance and reliability Full Range Class D amplifier technology Bridgeable for high-power operation (CH1+CH2/CH3+CH4) Balanced differential inputs for superior noise rejection Input sensitivity from 200mV to 10V accepts Line (RCA) and Speaker level input Input selector switch (2CH/4CH) Selectable auto-turn-on modes: Signal Sensing (VOX), 12V Remote (REM), and DC offset (DC) Fully variable, 12dB per octave, electronic crossovers Remote level control for Mono channel (CH5) included Built-in BTR Port (MICRO-USB) to connect our optional Bluetooth receiver-controller Illuminated logo Specifications: RMS Power Rating: RMS Power (2Ω): 150W x 4/350W x 1 RMS Power (4Ω): 80W x 4/200W x 1 Bridged (mono 1Ω): N/A Bridged (mono 2Ω): N/A Bridged (mono 4Ω): 300W x 2/200W x 1 Topology: Full Range Class D Power Supply: Power Supply: Full PWM Power Supply Threshold: 10.0VDC - 17.0VDC Idle Current: (0.7A) Distortion: THD 4 (1KHx @ 4Ω): 0.5% S/N Ratio (A weighted @1W): -85dBA S/N Ratio (A weighted @FP): -101.1dBA Input Sensitivity: Low Input Level: 200mV - 10.0V High Input Level: N/A Input Impedance: Low Input Level: 20KΩ High Input Level: 20KΩ Output Stage: Output Impedance: 0.018Ω Damping Factor (50Hz@4Ω): >70 Bandwidth (-3dB): 10Hz - 35Hz Crossover (-12dB/Oct): Variable High-Pass: Flat or Fixed 70Hz Variable Low-Pass: 40Hz - 400Hz Variable Sun-Sonic: N/A Fuse Ratings: ATC: 60A Dimensions: 10.65” L x 4.0” W x 1.46” H ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

  Diamond Audio HX1200.5 1400W RMS HEX-Series 5-Channel Class-D Car Amplifier Amp For exceptional studio sound quality, the balance of power and control must be mastered in reproducing accurate sound recordings. HEX series amplifiers deliver the most filtered and cleanest signal by removing unwanted static and transient noise that can affect and degrade any car audio system. HEX series amplifiers are manufactured using top-grade audiophile components to deliver unrivaled sound quality amplification. Inspired by the best technologies from professional studio sound equipment, HEX series amplifiers will surely provide the power and control to reproduce that signature Diamond Audio sound! General Features: Anodized Extruded Aluminum Heat Sink Provides Superior Thermal Performance 4-Layer PCB Board with Balanced Differential Inputs Full-Range Digital Class D IR Chipset “SNAP” Capacitors used Throughout Circuit Audiophile Grade High Tolerance Components Spring Steel FET Clips Provide Cleaner Board Design Illuminated Logo/Fully Concealed Mounting Output Clip Indicators for Precise System Set Up Fine-Tuned Fully Variable Crossover and Phase Control Top Mounted Controls for Convenient Amplifier Specifications: RMS Power Rating: RMS Power (4Ω): 100 W X 4 / 480 X 1 RMS Power (2Ω): 150 W X 4 / 800 x 1 Bridged(mono 4Ω): 480 W X 1(sub output) Bridged(mono 2Ω): 800 W X 1(sub output) Bridged(stereo 4Ω): 300 W X 2(4Ω) / 800 X 1(2Ω) Topology: Full Range Class D Power Supply: Full PWM Power Supply Threshold: 10.0VDC-170VDC Idle Current: (0.7A) THD 4(1KH@4Ω) : 0.06% S/N Ratio(A weighted@1W): -80dBA S/N Ratio(A weighted@FP): .95dBA Low Input Level: 200mV-5.0V Hight Input Level: N/A Input Impedance: Low Input Level: 20 KΩ High Input Level: N/A Output Impedance: 0.0297 Ω Damping Factor(50Hz@4Ω): >250 Bandwidth(-3dB): 10Hz-35KHz Crossover(-12/24dB/Oct) Variable High-Pass: 40Hz-400Hz(-12dB Ch1/2/3/4) Variable Low-Pass: 30Hz-300Hz(-12dB Ch 5) Variable Sub-Sonic: 10-55Hz @ 18 dB Fuse Ratings: ATC: 40A X 2 Dimensions: Length x Width x Height(Inches): 14.25" x 7.67" x 2" Length x Width x Height(mm): 362 x 195 x 51.5 ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Rockford Fosgate Punch P500X1BD 500W RMS Punch Series Monoblock Class D Car Power Amplifier The Punch P500X1bd is a mono amplifier capable of 500 Watts into a 1-ohm load. The Class-BD technology produces bass more efficiently than traditional amps, and its frequency response allows it to be optimized for subwoofers. General Features: Punch BD Series Monoblock Class BD Car Amplifier RMS Power Rating: 4 ohms: 150 watts x 1 channel  RMS Power Rating: 2 ohms: 300 watts x 1 channel RMS Power Rating: 1 ohm: 500 watts x 1 channel CEA-2006 compliant amplifier MOSFET power supply Muted turn-on. Cast aluminum heatsink. 12dB/octave Butterworth crossover Stealth top-mounted control panel LED power, thermal, and protection indicators. Nickel-plated captive C-clamp terminals. Ultra-efficient Class BD circuitry to maximize amplifier power efficiency. On-board differential inputs eliminate noise picked up by the signal cable. Optional remote Punch Level Control (PLC2) ready (w/ input clip indicator) High-level input capable with Auto Turn-On circuit (RFIF2SW required, sold separately) MESHA3 reduces MOSFET temperatures, lowers distortion, increases durability, and prolongs the output device life span. Built-in NOMAD is a "real-time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances. Cast aluminum convection heatsink with DTM (Dynamic Thermal Management) evenly distributes excess heat across the entire amplifier heatsink to efficiently keep the amplifier temperatures low. DSM (Discrete Surface Mounted Components) utilizes 1% tight tolerances, improving the circuit's efficiency and lowering the operating temperature and potential for noise-like circuit boards designed by aerospace manufacturers. Input sensitivity: 150mV - 12V On-board Punch EQ with +18dB boost @ 45Hz. Variable low-pass filter: 50-250 Hz Selectable infrasonic filter: off / 28 Hz Frequency response: 20 - 250 Hz Total Harmonic Distortion: <1.0% Dimensions: 11"L x 7-3/4"W x 2-3/8"H 8 AWG to 18 AWG speaker wire output terminals Authorized Internet Dealer 1-year Manufacturer's Warranty What is in the P500X1bd box? Mono subwoofer amplifier Four 1-1/2" Self-tapping screws 2.5mm Allen wrench Quick setup instructions Certificate of Performance P500X1bd owner's manual Warning:This product can expose you to chemicals known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Rockford Fosgate Punch P500X1BD 500W RMS Punch Series Monoblock Class D Car Power Amplifier The Punch P500X1bd is a mono amplifier capable of 500 Watts into a 1-ohm load. The Class-BD technology produces bass more efficiently than traditional amps, and its frequency response allows it to be optimized for subwoofers. General Features: Punch BD Series Monoblock Class BD Car Amplifier RMS Power Rating: 4 ohms: 150 watts x 1 channel  RMS Power Rating: 2 ohms: 300 watts x 1 channel RMS Power Rating: 1 ohm: 500 watts x 1 channel CEA-2006 compliant amplifier MOSFET power supply Muted turn-on. Cast aluminum heatsink. 12dB/octave Butterworth crossover Stealth top-mounted control panel LED power, thermal, and protection indicators. Nickel-plated captive C-clamp terminals. Ultra-efficient Class BD circuitry to maximize amplifier power efficiency. On-board differential inputs eliminate noise picked up by the signal cable. Optional remote Punch Level Control (PLC2) ready (w/ input clip indicator) High-level input capable with Auto Turn-On circuit (RFIF2SW required, sold separately) MESHA3 reduces MOSFET temperatures, lowers distortion, increases durability, and prolongs the output device life span. Built-in NOMAD is a "real-time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances. Cast aluminum convection heatsink with DTM (Dynamic Thermal Management) evenly distributes excess heat across the entire amplifier heatsink to efficiently keep the amplifier temperatures low. DSM (Discrete Surface Mounted Components) utilizes 1% tight tolerances, improving the circuit's efficiency and lowering the operating temperature and potential for noise-like circuit boards designed by aerospace manufacturers. Input sensitivity: 150mV - 12V On-board Punch EQ with +18dB boost @ 45Hz. Variable low-pass filter: 50-250 Hz Selectable infrasonic filter: off / 28 Hz Frequency response: 20 - 250 Hz Total Harmonic Distortion: <1.0% Dimensions: 11"L x 7-3/4"W x 2-3/8"H 8 AWG to 18 AWG speaker wire output terminals Authorized Internet Dealer 1-year Manufacturer's Warranty What is in the P500X1bd box? Mono subwoofer amplifier Four 1-1/2" Self-tapping screws 2.5mm Allen wrench Quick setup instructions Certificate of Performance P500X1bd owner's manual Warning:This product can expose you to chemicals known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Alpine KTP-445A Power Pack Head Unit Amplifier and Backup Camera Bundle.  4-Channel Compact Amp Increases Alpine Head Unit Power up to 150 Percent - 90 Watts x 4 Channels, fits iLX-W650 and Others Bundle Package: Alpine KTP-445A Power Pack Amp Absolute Waterproof Angle Backup Camera Alpine KTP-445A Plug and Play Head Unit Power Pack for Use with 2005-Up Alpine Head Units with a Black Power Harness The KTP-445A Power Pack amplifies the power output on select 2005 and newer Alpine head units, resulting in a power increase of up to 150% over the original power from the head unit's built-in amplifier. The compact size lets the KTP-445A fit where most amplifiers won’t. The KTP-445A comes equipped with direct plug-in connectors for select 2005 and newer Alpine head units, and it fits behind the dash of most vehicles. It's small and compact at only 7-7/16” x 1-1/2” x 2-1/2”. Its size and flexible wires make the Power Pack an easy choice to save space. To ensure that Alpine sound quality is heard, we’ve created a platform that offers an unbelievably low noise floor, taking extra care to ensure a clean signal path, with no extraneous interference. The result: The Power Pack boasts a 1-watt signal-to-noise ratio of 82dB or better. General Features: Alpine Power Pack 4-Channel Class D for Select In-Dash Receivers Plug-and-play design for compatible Alpine head units (2005 - Up, Black 16 Pin) RMS Power Rating: 4 ohms: 45 watts x 4 Channel Total RMS power output: 180 watts CEA-2006 compliant amplifier Increases the output of an Alpine head unit without having to install a full-size amplifier and amp install kit The fast and easy solution to higher power aftermarket sound High-efficiency digital circuit design Gain optimized for Alpine head units Plugs directly into the wiring harness of the Alpine receiver Fast and simple installation 4-channel operation for four speakers It is not compatible with factory amplifiers Frequency response: 20-20,000 Hz Signal to Noise Ratio: 84 dBA Fuse Rating: 15A x 1 Includes both Amp-to-receiver and Amp-to-vehicle Harnesses Dimensions: 7-13/16D x 2-9/16"W x 1-1/2"H Authorized Dealer 1-year Manufacturer's Warranty What is in the KTP-445A package: Head Unit Power Pack (15A fuse installed) 39" Amp-to-receiver harness (male 16-pin connector on each end) 31" Amp-to-vehicle harness (male 16-pin connector on one end and a female 16-pin connector on the other end) 2 Brackets 4 Screws 4 Wire-ties Installation Diagram Online Product Registration Limited Warranty Information KTP-445A Power Pack owner's manual Warning:This product can expose you to chemicals known to the State of California to cause cancer. For more information, go to P65Warnings.ca.  

Alpine KTP-445A Power Pack Head Unit Amplifier and Backup Camera Bundle.  4-Channel Compact Amp Increases Alpine Head Unit Power up to 150 Percent - 90 Watts x 4 Channels, fits iLX-W650 and Others Bundle Package: Alpine KTP-445A Power Pack Amp Absolute Waterproof Angle Backup Camera Alpine KTP-445A Plug and Play Head Unit Power Pack for Use with 2005-Up Alpine Head Units with a Black Power Harness The KTP-445A Power Pack amplifies the power output on select 2005 and newer Alpine head units, resulting in a power increase of up to 150% over the original power from the head unit's built-in amplifier. The compact size lets the KTP-445A fit where most amplifiers won’t. The KTP-445A comes equipped with direct plug-in connectors for select 2005 and newer Alpine head units, and it fits behind the dash of most vehicles. It's small and compact at only 7-7/16” x 1-1/2” x 2-1/2”. Its size and flexible wires make the Power Pack an easy choice to save space. To ensure that Alpine sound quality is heard, we’ve created a platform that offers an unbelievably low noise floor, taking extra care to ensure a clean signal path, with no extraneous interference. The result: The Power Pack boasts a 1-watt signal-to-noise ratio of 82dB or better. General Features: Alpine Power Pack 4-Channel Class D for Select In-Dash Receivers Plug-and-play design for compatible Alpine head units (2005 - Up, Black 16 Pin) RMS Power Rating: 4 ohms: 45 watts x 4 Channel Total RMS power output: 180 watts CEA-2006 compliant amplifier Increases the output of an Alpine head unit without having to install a full-size amplifier and amp install kit The fast and easy solution to higher power aftermarket sound High-efficiency digital circuit design Gain optimized for Alpine head units Plugs directly into the wiring harness of the Alpine receiver Fast and simple installation 4-channel operation for four speakers It is not compatible with factory amplifiers Frequency response: 20-20,000 Hz Signal to Noise Ratio: 84 dBA Fuse Rating: 15A x 1 Includes both Amp-to-receiver and Amp-to-vehicle Harnesses Dimensions: 7-13/16D x 2-9/16"W x 1-1/2"H Authorized Dealer 1-year Manufacturer's Warranty What is in the KTP-445A package: Head Unit Power Pack (15A fuse installed) 39" Amp-to-receiver harness (male 16-pin connector on each end) 31" Amp-to-vehicle harness (male 16-pin connector on one end and a female 16-pin connector on the other end) 2 Brackets 4 Screws 4 Wire-ties Installation Diagram Online Product Registration Limited Warranty Information KTP-445A Power Pack owner's manual Warning:This product can expose you to chemicals known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Alpine KTP-445A Plug and Play Head Unit Power Pack for Use with 2005-Up Alpine Head Units with a Black Power Harness The KTP-445A Power Pack amplifies the power output on select 2005 and newer Alpine head units, resulting in a power increase of up to 150% over the original power from the head unit's built-in amplifier. The compact size of the KTP-445A allows it to fit where most amplifiers won’t. The KTP-445A comes equipped with direct plug-in connectors for select 2005 and newer Alpine head units, and it fits behind the dash of most vehicles. It's small and compact at only 7-7/16” x 1-1/2” x 2-1/2”. Its size and flexible wires make the Power Pack an easy choice to save space. To ensure that Alpine sound quality is heard, we’ve created a platform that offers an unbelievably low noise floor, taking extra care to ensure a clean signal path with no extraneous interference. The result: The Power Pack boasts a signal-to-noise ratio of 82dB or better.  General Features: Alpine Power Pack 4-Channel Class D for Select In-Dash Receivers Plug-and-play design for compatible Alpine head units (2005 - Up, Black 16 Pin) RMS Power Rating: 4 ohms: 45 watts x 4 Channel Total RMS power output: 180 watts CEA-2006 compliant amplifier Increases the output of an Alpine head unit without having to install a full-size amplifier and amp install kit The fast and easy solution to higher power aftermarket sound High-efficiency digital circuit design Gain optimized for Alpine head units Plugs directly into the wiring harness of the Alpine receiver Fast and simple installation 4-channel operation for four speakers It is not compatible with factory amplifiers Frequency response: 20-20,000 Hz Signal to Noise Ratio: 84 dBA Fuse Rating: 15A x 1 Includes both Amp-to-receiver and Amp-to-vehicle Harnesses Dimensions: 7-13/16D x 2-9/16"W x 1-1/2"H Authorized Dealer 1-year Manufacturer's Warranty What is in the KTP-445A package: Head Unit Power Pack (15A fuse installed) 39" Amp-to-receiver harness (male 16-pin connector on each end) 31" Amp-to-vehicle harness (male 16-pin connector on one end and a female 16-pin connector on the other end) 2 Brackets 4 Screws 4 Wire-ties Installation Diagram Online Product Registration Limited Warranty Information KTP-445A Power Pack owner's manual Warning:This product can expose you to chemicals known to the State of California to cause cancer. For more information, go to P65Warnings.ca.