All Alpine Car Amplifiers (123)

Alpine R-A75M R-Series Class D Monoblock Subwoofer Amplifier 750 Watts RMS Bundle Package Include: 1 x Alpine R-A75M R-Series Class D Monoblock Subwoofer Amplifier 1 x Absolute TW-600 600 Watts MAX High-Efficiency Dome Tweeter with Built-In Crossover (Pair) 1 x Absolute USA BT1700 General Use 0.18mm x 3/4-Inch x 20Yd Electrical Tape (Black) 1 x Universal 360 Degree Rotation and Swivel Mobile Bracket Holder Alpine R-A75M R-Series Class D Monoblock Subwoofer Amplifier 750 Watts RMS HI-RESOLUTION AUDIO COMPLIANT The R-Series amplifiers utilize Alpine’s advanced amplifier platform that takes the classic Class-D amplifier circuit and adds dual post-filter feedback loops for unmatched accuracy and control. This technology., originally launched in the premium X-Series amplifiers, produces efficient power with enhanced dynamic range, qualifying the R-Series amplifiers to be Hi-Resolution Audio compliant. THE LOUDEST FAMILY ON THE BLOCK The “R” line of speakers and subwoofers have a heritage of sound quality you can hear from a block away, and the newly added R-Series amplifiers are no exception. Aside from their best-in-class performance, these amplifiers are tuned to emphasize the characteristics of the R-Series speakers and subwoofers, giving you that legendary R-Series experience. General Features: R-Series Class D Monoblock Subwoofer Amplifier Power Output: 500 watts RMS x 1 @ 4 ohms 750 watts RMS x 1 @ 2 ohms CTA-2006 compliant Variable low-pass filter (50-400 Hz, 24 dB/octave) Variable bass boost (0-12 dB at 50 Hz) Variable subsonic filter (min-40 Hz, 24 dB/octave) We recommend the Alpine RUX-KNOB.2 if you are looking for a remote bass knob for Alpine Amplifiers Preamp and speaker-level inputs Speaker wire to RCA adapter required for speaker-level input - we recommend the Rockford Fosgate RFI2SW preamp outputs wiring and hardware not included with amplifier 4-gauge power and ground leads recommended - get the NVX XAPK4 for this Fuse rating: 40A x 2 Dimensions: 9" W x 2-1/16" H x 7-1/8" D Authorized Dealer 1-year Manufacturer's Warranty What's in the R-A75M package: Mono subwoofer amplifier Two 40-amp ATO fuses (installed) 4 Mounting feet Four 3/4" Screws Eight M2.5x5.5mm Machine screws 2mm Allen wrench 3mm Allen wrench Owner's manual Alpine Verification Certificate Warranty information Power supply note Online product registration information R-A75M owner's manual ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Alpine R-A75M R-Series Class D Monoblock Subwoofer Amplifier 750 Watts RMS with Absolute Complete 4000W 0 gauge car amplifier installation wiring kit amp pk1 0 ga Alpine R-A75M R-Series Mono Digital Amplifier - 750 Watts x 1 at 2-Ohms HI-RESOLUTION AUDIO COMPLIANT The R-Series amplifiers utilize Alpine’s advanced amplifier platform that takes the classic Class-D amplifier circuit and adds dual post-filter feedback loops for unmatched accuracy and control. This technology., originally launched in the premium X-Series amplifiers, produces efficient power with enhanced dynamic range, qualifying the R-Series amplifiers to be Hi-Resolution Audio compliant. THE LOUDEST FAMILY ON THE BLOCK The “R” line of speakers and subwoofers have a heritage of sound quality you can hear from a block away, and the newly added R-Series amplifiers are no exception. Aside from their best-in-class performance, these amplifiers are tuned to emphasize the characteristics of the R-Series speakers and subwoofers, giving you that legendary R-Series experience. General Features: R-Series Class D Monoblock Subwoofer Amplifier Power Output: 500 watts RMS x 1 @ 4 ohms 750 watts RMS x 1 @ 2 ohms CTA-2006 compliant Variable low-pass filter (50-400 Hz, 24 dB/octave) Variable bass boost (0-12 dB at 50 Hz) Variable subsonic filter (min-40 Hz, 24 dB/octave) We recommend the Alpine RUX-KNOB.2 if you are looking for a remote bass knob for Alpine Amplifiers Preamp and speaker-level inputs Speaker wire to RCA adapter required for speaker-level input - we recommend the Rockford Fosgate RFI2SW preamp outputs wiring and hardware not included with amplifier 4-gauge power and ground leads recommended - get the NVX XAPK4 for this Fuse rating: 40A x 2 Dimensions: 9" W x 2-1/16" H x 7-1/8" D Authorized Dealer 1-year Manufacturer's Warranty What's in the box: Mono subwoofer amplifier Two 40-amp ATO fuses (installed) 4 Mounting feet Four 3/4" Screws Eight M2.5x5.5mm Machine screws 2mm Allen wrench 3mm Allen wrench Owner's manual (English/ French/ Spanish) Alpine Verification Certificate Warranty information Power supply note Online product registration information Alpine R-A75M owner's manual ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Alpine BBX-T600 600W Max BBX Series 2-ohm Stable 2 Channel Class A/B Amplifier This new BBX amplifier gives you Alpine power performance at an amazing price. And they are designed to fit easily in virtually any system. This amp delivers high output power and exceptional performance for their class. A great way to expand your sound system on a limited budget. These two filters let you set the frequency points for the high, mid, and bass ranges to match your speakers and ensure optimum efficiency. With Bass EQ, you can maximize the performance of your system and get even more powerful bass. General Features: Alpine BBX-T600 Class-A/B 2-ohm Stable 2-Channel Amplifier 50 Watts @ 4 Ohm x 2 Channel 70 Watts @ 2 Ohm x 2 Channel 130 Watts @ 4 Ohm x 1 Channel Bridged Total power output: 600 watts Pulse Width Modulated MOSFET power supply LED power (green) and protect (red) indicators Soft start turn-on Two or Mono channel operation One pair of preamp outputs to connect multiple amplifiers 3-way protection circuitry (thermal, overload, and speaker short protection) Dual speaker terminals simplify the hookup of multiple speakers Heavy-duty aluminum alloy heat-sink Input sensitivity: .2V - 8V Frequency Response: 5 - 50000 Hz Total Harmonic Distortion (THD): <1% Signal Noise Ratio: 95dB Variable high-pass filter: 80 - 1200 Hz Variable low-pass filter: 50 - 500 Hz Variable Bass Boost: 0 to +12 dB bass boost Fuse Rating: 20A x 1 Dimensions: 9.84"W x 9.44"L x 2"H Authorized Internet Dealer 1-year Manufacturer's Warranty Weight: 5.00lbs What's in the BBX-T600 package: BBX-T600 owner's manual Two Channel amplifier Owner's manual (English/ French/ Spanish) Alpine Verification Certificate Warranty information Power supply note Online product registration information ⚠️Warning:For cancer and Reproductive Harm, go to www.P65Warnings.ca.gov.

2 Alpine BBX-T600 600W Max BBX Series 2-ohm Stable 2 Channel Class A/B Amplifier This new BBX amplifier gives you Alpine power performance at an amazing price. And they are designed to fit easily in virtually any system. This amp delivers high output power and exceptional performance for their class. A great way to expand your sound system on a limited budget. These two filters let you set the frequency points for the high, mid, and bass ranges to match your speakers and ensure optimum efficiency. With Bass EQ, you can maximize the performance of your system and get even more powerful bass. General Features: Alpine BBX-T600 Class-A/B 2-ohm Stable 2-Channel Amplifier 50 Watts @ 4 Ohm x 2 Channel 70 Watts @ 2 Ohm x 2 Channel 130 Watts @ 4 Ohm x 1 Channel Bridged Total power output: 600 watts Pulse Width Modulated MOSFET power supply LED power (green) and protect (red) indicators Soft start turn-on Two or Mono channel operation One pair of preamp outputs to connect multiple amplifiers 3-way protection circuitry (thermal, overload, and speaker short protection) Dual speaker terminals simplify the hookup of multiple speakers Heavy-duty aluminum alloy heat-sink Input sensitivity: .2V - 8V Frequency Response: 5 - 50000 Hz Total Harmonic Distortion (THD): <1% Signal Noise Ratio: 95dB Variable high-pass filter: 80 - 1200 Hz Variable low-pass filter: 50 - 500 Hz Variable Bass Boost: 0 to +12 dB bass boost Fuse Rating: 20A x 1 Dimensions: 9.84"W x 9.44"L x 2"H Authorized Internet Dealer 1-year Manufacturer's Warranty Weight: 5.00lbs What's in the BBX-T600 package: BBX-T600 owner's manual Two Channel amplifier Owner's manual (English/ French/ Spanish) Alpine Verification Certificate Warranty information Power supply note Online product registration information ⚠️Warning:Cancer and Reproductive Harm, go to www.P65Warnings.ca.gov.

 Alpine X-A70F 700 W RMS X-Series Class-D 4-Channel 2 ohm Stable AmplifierAlpine introduces the all-new X-Series of high-grade speakers and amplifiers. These products have been engineered and tuned to create a perfect match for extraordinarily dynamic, realistic sound reproduction and a spatial sound impression.The all-new X-Series amplifiers set a new standard for sound quality performance and power output in a very compact design. Available in mono, four-channel, and five-channel configurations, these amps are a perfect match for the all-new X-Series speakers and subwoofers.General Features: Alpine X-Series X-A70F Class-D Full Range 2 ohm Stable 4-Channel Amplifier RMS Power Rating: 4 ohms: 120 watts x 4 Channel 2 ohms: 175 watts x 4 Channel 1 ohm: ------------N/A----------- Bridged, 4 Ohms: 350 Watts X 2 Channel Total power output: 700 watts CEA-2006 Compliant Amplifier Hi-Res Audio compatible Wired remote level control, Alpine RUX-KNOB.2, available Included plastic covers available to offer a brushed aluminum finish around the edges LED power (green) and protect (red) indicators Soft start turn-on 4/3/2 channel operation Speaker-level (high-level) inputs Preamp Outputs 3-way protection circuitry (thermal, overload, and short speaker protection) Dual speaker terminals simplify the hookup of multiple speakers Heavy-duty aluminum alloy heat-sink Input sensitivity High level: .4 - 10V Low level: .1 - 4V Frequency Response: 10 - 60,000 Total Harmonic Distortion (THD): .07% Signal Noise Ratio: >106dB Variable low-pass filter: 50 - 400Hz, -24dB/octave Variable subsonic filter: 50 - 40Hz, -24dB/octave Variable Bass Boost: 0 to +12 dB bass boost at 50 Hz Fuse Rating: 35A x 3 Four gauge power and ground wiring are recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Dimensions: 11-3/4"W x 7-5/8"L x 2"H Authorized Dealer 1-year Manufacturer's Warranty What is in the X-A70M package: 4-Channel amplifier Two 35A ATO fuses (installed) Terminal Cover Left Terminal Cover Right Terminal Cover Front Battery connector plug 2 Speaker connector plugs Logo Plate (self-adhesive) 4 Self-tapping screws (Length 3/4") 2mm Allen wrench 4mm Allen wrench Owner's Manual Alpine Verification Certificate Limited Warranty To Customers sheet X-A70M owner's manual ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Alpine RUX-KNOB.2 Remote Bass Knob for Alpine Amplifiers General Features: Remote Bass Level Control Knob 16-1/2" (5 meters) Connection cable Plugs directly in for quick direct subwoofer control Specifically designed as the controller for use with any of the following PDX Amplifiers: PDX-M12, and PDX-M6 Easily adjust the bass gain of your amp while seated inside Control multiple amps from just one RUX-KNOB controller Authorized Internet Dealer 1-year Manufacturer's Warranty What is in the package: Alpine Remote Bass Level Control module 16.4'  connecting cable  4 Self-tapping screws ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Alpine KTA-30FW 600W Max, 300W RMS KTA Series 4 ohm Stable 4-Channel Class-D Tough Power Pack Amplifier Half The Size, Double The Power Get a huge increase in sound performance over your factory system. With Alpine’s exclusive technology, Dynamic Peak Power (D.P.P.), the KTA-30FW Weather Resistant Tough Power Pack is sure to add higher output and increased dynamic range for those open cab vehicles and toys. The KTA-F30W is perfect for when you want to boost your sound system but don’t have space for a large amplifier. It is compatible with an aftermarket or factory head unit and adds up to 4 times the power over the head unit's original built-in power. The KTA-30FW is ready for your adventures. It is weather-resistant, rated at IP66 for protection against dust ingress and high-pressure water spray. The KTA-30FW features a rugged chassis and high-quality waterproof connector so it can be used in installations where it will be exposed to the elements, like side-by-sides, boats, open-top vehicles. and motorcycles. General Features: Alpine KTA-30FW Class-D Full Range 4-Ohm Stable 4-Channel Amplifier Designed for use in Side-by-Sides, Boats, Open-Top Vehicles, and Motorcycles RMS Power Rating: 4 ohms: 75 watts x 4 Channel RMS Power Rating: 2 ohms: 75 watts x 4 Channel 150 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode) Total power output: 600 watts CEA-2006 Compliant Amplifier Power Wire Harness Included Pulse Width Modulated MOSFET power supply Wired remote bass level control included Soft start turn-on Switchable 4 or 2 channel operation Speaker-level (high-level) inputs Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Dual speaker terminals simplify the hookup of multiple speakers Heavy-duty aluminum alloy heat-sink IP66 Waterproof Rating Input sensitivity: Low level: 0.2V-4V Input sensitivity: High level: 0.5V-10V Frequency Response: 15 - 36000 Hz Total Harmonic Distortion (THD): <0.1% Signal to Noise Ratio: >98 dB Variable high-pass filter: 50 - 400 Hz, 12 dB/octave Variable low-pass filter: 50 - 400 Hz, 12 dB/octave Variable Bass Boost: 0 to +12 dB bass boost at 50 Hz Dimensions: 9-3/16"W x 3-3/4"D x 1-3/4"H Authorized Dealer 1-year Manufacturer's Warranty What is in the box: 4-Channel amplifier 14" Power/signal harness (26-pin connector on one end and bare wires + RCAs on other ends) 4 Self-tapping screws (Length 3/4") Connection sheet Limited Warranty sheet Thank you letter Alpine KTA-30FW Tough Power Pack owner's manual ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Alpine KTA-30MW Car Amplifier Mono 300-Watt RMS Weather Resistant Tough Power Pack Amplifier A TOUGH MINI AMP THAT PACKS A PUNCH Get big amp performance in a compact, resilient package. With Alpine’s exclusive technology, Dynamic Peak Power (D.P.P.), the KTA-30MW Weather Resistant Tough Power Pack is sure to deliver powerful bass output for subwoofers used in those open cab vehicles and toys. This small and efficient amplifier can be installed with an aftermarket or factory head unit while adding up to 600 watts of D.P.P. power. Its weather resistance makes the KTA-30MW a good choice for use in exposed installations like side-by-sides, boats, open-top vehicles, and motorcycle saddlebags. A SOUND SYSTEM BOOST WITHOUT THE BIG SPACE COMMITMENT The KTA-30MW is perfect for when you want to add subwoofer power but don’t have space for a large amplifier. It is compatible with an aftermarket or factory head unit and provides up to 600 DPP watts to the subwoofer of your choice. HALF THE SIZE OF OUR SMALLEST TRADITIONAL AMPLIFIERS The KTA-30MW measures just 9-3/16” (W) x 1-5/8” (H) x 3-3/4” (D), so its small footprint lets it fit where most amplifiers won’t, like under the dash or in the glove compartment, installed under the dash of a side-by-side, placed in the saddlebag of a motorcycle, or used in other places where space is an issue. General Features: Alpine KTA-30MW Class D Monoblock Weather Resistant Power Pack Amplifier 300 Watts RMS X 1 @ 4 Ohms Power Handling 600 Watts RMS X 1 @ 2 Ohms Power Handling CTA-2006 compliant Frequency Response: 20-400 Hz Total Harmonic Distortion (THD): <1% Signal to Noise Ratio: 83dB Variable Low Pass filter 50-400Hz @ -24dB/Oct. Variable Bass Boost (0-12 dB at 50 Hz) Fuse Rating: 25A Weather-resistant (IP66 rating) Dynamic Peak Power (D.P.P.) technology intelligently adjusts the gain to automatically adapt to musical needs Dimensions: 7” W x 3.5” H x 1.25” D Authorized Dealer 1-year Manufacturer's Warranty What is in the KTA-30MW box: Mono amplifier 14" Power/signal harness (26-pin connector on one end and bare wires + RCAs on other ends) 4 Self-tapping screws (Length 3/4") Connection sheet Limited Warranty sheet KTA-30MW owner's manual ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Alpine KTP-445A Plug and Play Head Unit Power Pack for Use w/ 2005-Up Alpine Head Units with a Black Power Harness The KTP-445A Power Pack amplifies power output on select 2005 and newer Alpine head units, resulting in up to a 150 percent power increase over the original power from the head unit's built-in amplifier. 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. In order 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 end 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 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 other ends) 2 Brackets 4 Screws 4 Wire-ties Installation Diagram Online Product Registration Limited Warranty Information KTP-445A Power Pack owner's manual ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Alpine S-A32F S-Series 320W RMS 4-Channel Digital Class D Car Audio Amplifier The all-new S-Series amplifiers pack a punch with even more performance and value. Experience hard-hitting bass and long hours of limitless play with the S-A32F 4-channel amplifier. These amplifiers offer great value with over 20% more power through increased watt handling. The exceptional strength and resistance are supported by optimizing a heat thermal management processor to ensure exceptional reliability. You can enjoy your music with the bass cranked up for hours without any power shutdown.General Features: Alpine S-Series S-A32F 4/3/2 Channel Power Amplifier S-Series amplifiers are your sound system’s workhorse. With unmatched reliability and budget-friendly prices, these amplifiers are the better choice in performance value. S-Series Amplifier: Known for reliable performance and value-oriented products. Power Output: 55W RMS x 4 (4ohm, 14.4V ≤ 1% THD+N) 80W RMS x 4 (2ohm, 14.4V≤ 1% THD+N) Bridged: 160W RMS x 2 (4ohm, 14.4V ≤ 1% THD+N) Total power output: 320 watts CEA-2006 Compliant Amplifier LED Power/Protect Light Speaker-level (high-level) inputs 3-way protection circuitry (thermal, overload, and short speaker protection) Frequency Response: 10 - 30,0000 Hz Total Harmonic Distortion (THD): <1% Signal Noise Ratio: 83 dB Variable high-pass filter: 50 - 400 Hz, 12 dB/octave Variable low-pass filter: 50 - 400 Hz, 12 dB/octave Fuse Rating: 40 Improved heat sink and protection circuit design Contain technology currently implemented in the Alpine R and X-Series models 105dB Signal-to-Noise (S/N) ratio at rated power 46 degrees of phase shift Designed to perform perfectly with the existing S-Series speakers and subwoofers Dimensions: 8” W x 8” H x 2.25” D Authorized Dealer 1-year Manufacturer's Warranty What is in the S-A32F package: S-A32F owner's manual 4-Channel amplifier One 40-amp ATO fuse Four 3/4" Screws 2mm Allen wrench Alpine Verification Certificate Warranty information Online product registration information ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Alpine S-A55V S-Series 5-Channel Class D Amplifier 540W RMS The Alpine S-Series Sound ComponentsThree new S-Series amplifiers join the S-Series family, known for reliable performance and value-oriented products. All three S-Series amps (mono, 4-channel, and 5-channel) contain technology currently implemented in R and X-Series models. The S-Series amps feature attractive prices and are designed to perform perfectly with the existing S-Series speakers. S-Series amplifiers are your sound system’s workhorse. With unmatched reliability and budget-friendly prices, these amplifiers are the better choice in performance value. General Features: 5-channel Class D Amplifier Power Output: 40 watts RMS x 4 + 200 watts RMS x 1 at 4 ohms 60 watts RMS x 4 + 300 watts RMS x 1 at 2 ohms 120 watts RMS x 2 bridged at 4 ohms + 300 watts RMS x 1 at 2 ohms CTA-2006 compliant Variable high-pass filter (50-400 Hz, 12 dB/octave) on 4-channel section Variable low-pass filter (50-400 Hz, 24 dB/octave) on a subchannel Variable bass boost (0-12 dB at 50 Hz) on a subchannel Optional RUX-KNOB.2 wired remote level control for a subchannel Preamp and speaker-level inputs speaker wire to RCA adapter required for speaker-level input Wiring and hardware not included with amplifier 4-gauge power and ground leads recommended Fuse rating: 30A x 2 Dimensions: 11-1/4" W x 2-1/4" H x 8" D Authorized Dealer 1-year Manufacturer's Warranty What's in the box: 5-Channel amplifier Two 30-amp ATO fuses (installed) Four 3/4" Screws 2mm Allen wrench Owner's manual (English/ French/ Spanish) Alpine Verification Certificate Warranty information Power supply note Online product registration information Alpine S-A55V owner's manual ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov

Alpine R-A75M R-Series Class D Monoblock Subwoofer Amplifier 750 Watts RMS HI-RESOLUTION AUDIO COMPLIANT The R-Series amplifiers utilize Alpine’s advanced amplifier platform that takes the classic Class-D amplifier circuit and adds dual post-filter feedback loops for unmatched accuracy and control. This technology., originally launched in the premium X-Series amplifiers, produces efficient power with enhanced dynamic range, qualifying the R-Series amplifiers to be Hi-Resolution Audio compliant. THE LOUDEST FAMILY ON THE BLOCK The “R” line of speakers and subwoofers have a heritage of sound quality you can hear from a block away, and the newly added R-Series amplifiers are no exception. Aside from their best-in-class performance, these amplifiers are tuned to emphasize the characteristics of the R-Series speakers and subwoofers, giving you that legendary R-Series experience. General Features: R-Series Class D Monoblock Subwoofer Amplifier Power Output: 500 watts RMS x 1 @ 4 ohms 750 watts RMS x 1 @ 2 ohms CTA-2006 compliant Variable low-pass filter (50-400 Hz, 24 dB/octave) Variable bass boost (0-12 dB at 50 Hz) Variable subsonic filter (min-40 Hz, 24 dB/octave) We recommend the Alpine RUX-KNOB.2 if you are looking for a remote bass knob for Alpine Amplifiers Preamp and speaker-level inputs Speaker wire to RCA adapter required for speaker-level input - we recommend the Rockford Fosgate RFI2SW preamp outputs wiring and hardware not included with amplifier 4-gauge power and ground leads recommended - get the NVX XAPK4 for this Fuse rating: 40A x 2 Dimensions: 9" W x 2-1/16" H x 7-1/8" D Authorized Dealer 1-year Manufacturer's Warranty What's in the R-A75M package: Mono subwoofer amplifier Two 40-amp ATO fuses 4 Mounting feet Four 3/4" Screws Eight M2.5x5.5mm Machine screws 2mm Allen wrench 3mm Allen wrench Owner's manual Alpine Verification Certificate Warranty information Power supply note Online product registration information Alpine R-A75M owner's manual ⚠️Warning:Cancer and Reproductive Harm-www.P65Warnings.ca.gov