500W x 1 @ 4Ω

Amplifiers with a Power Output Rating of 500-Watts x 1-Channel, 4-Ohm Final Impedance

Amplifiers with a Power Output Rating of 500-Watts x 1-Channel, 4-Ohm Final Impedance

RMS power: This rating of any amplifier is the continuous power rating that an amp is designed to output at a maximum continued volume rating. The RMS power specification is one of two numbers to go by when pairing your speakers with an amplifier, not the only 2 but a good starting point. As an example, a speaker driver with a 500-Watt, or 500W for short, RMS rating should be paired with a five-hundred-watt RMS amplifier. We usually recommend an amp to be over powered by 10% RMS so that the power-plant does not have to work at 100% capacity to get 100-percent efficiency from your speakers. This will keep your amplifier from overheating during long periods of continuous operation.

Ohms: Is the resistance rating of an amp and is the second most important when pairing drivers with amplifiers. A power-plant that is 500W @ 4-ohm might put out 1000-Watts @ 2Ω. When purchasing an amplifier, the correct pairing of a speaker’s RMS wattage and Ohm ratings with an amp’s output power rating is absolutely essential.

6 products

  • Alpine HDA-M80 : 800W Mono Hi-Res Automotive Amplifier, 800W/500W Mono @ 2Ω/4Ω. Alpine HDA-M80 : 800W Mono Hi-Res Automotive Amplifier, top side.

    Alpine HDA-M80 : 800W Mono Hi-Res Automotive Amplifier, 800W/500W Mono @ 2Ω/4Ω

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    Using expertise gleaned from over five decades of crafting premium car audio products and trickle-down engineering and design from the Ultra Hi-Res AlpineF#1Status system technologies, the Alpine Status System features exceptional tooling and rich build quality for the best possible sound reproduction. Each component was hand-picked from the highest-quality materials for the highest in-class audio performance, that when used as a complete system, can achieve 192kHz/24Bit playback. Powering a Hi-Res sound system without contributing noise during playback requires efficiency and precision and the HDA-M80 was intentionally designed to provide impressive power output to the system while ensuring the purest audio performance. The amplifier’s wide dynamic range capability provides impressive output in a compact chassis that fits most vehicle applications. The HDA-M80 features a high-efficiency digital circuit design that ensures ultra- low distortion levels for precise sound reproduction and superb sound quality. Intentional designs, like a copper-plated chassis and black circuit board, bring the signal-to-noise ratio up to 83dB and minimize noise and distortion during playback for complete music fidelity that’s true to the original source. Featuring technology unique to Alpine, the amplifier features Alpine’s dual negative feedback control circuit to improve linearity for the most accurate sound amplification. This technology also stabilizes the amplifier output while driving the subwoofers for ultimate reliability. The HDA- M80 features Alpine’s quick- connect power and speaker connectors for quick and safe installation. The one- sided terminal layout and top-panel sound controls give the user quick access to controls on the amplifier. The Alpine Status System is sold separately and can be used to build a custom sound system. Three sets of true 4V preamp outputs are included to add additional amplifiers if more power is needed. For best results, install the complete Alpine Status system together as a full system to achieve the highest in-class audio performance only second to the Ultra High-Resolution AlpineF#1System. Features Hi-Res Audio Playback (192kHz/24Bit)  Mono-Channel Amplifier High-Efficiency Digital Circuit Design Alpine’s Dual Negative Feedback Control Circuit High Bandwidth Amplifier  Alpine’s Premium Class D Circuit Design  Copper-plated chassis Black circuit board One-sided terminal layout Top panel sound controls Quick connect power and speaker terminals Optional Remote bass knob compatible (requires RUX-KNOB.2 or RUX-H01, sold separately) Specifications Dimensions: 11.4375” x 7.5” x 2.125” Power Rating: (14.4V, ≤1.0% THD+N) 800W x 1 @ 2Ω 500W x 1 @ 4Ω THD+N: 0.02% (10W into 4ohm) S/N Ratio: 83dB (1W into 4ohm) Frequency response: 8-400Hz (-3dB) Damping factor: 1500 Selectable input level – HI/LO Variable High pass / Low pass crossover Variable Subsonic filter Bass EQ (0 to +12dB, Variable) Auto-turn on with remote sensing Alpine HDA-M80 Manual

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    $749.99

  • Alpine R-A75M : 750W Mono Automotive Amplifier, 750W/500W Mono @ 2Ω/4Ω Alpine R-A75M : 750W Mono Automotive Amplifier, top side.

    Alpine R-A75M : 750W Mono Automotive Amplifier, 750W/500W Mono @ 2Ω/4Ω

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    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.  This new technology minimizes audible imperfections like excessive phase shift and internal noise which can deteriorate sound quality. With an incredibly low phase shift of 46°, the R-A60F 4-channel amplifier delivers accurate imaging compared to well over 100° of phase shift by a competitive amplifier model. This superior phase curve ensures a proper sound stage among the singers and instruments. R-Series amplifiers have a built-in bandpass filter which lets you design an active speaker set-up without a separate processor. Improve the sound quality of component speakers by ditching your passive network.  Avoid added phase shifts and power losses by individually powering each component and assigning your own frequency bands for the incredible sound you’re looking for.  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. Specifications Alpine’s Class D Amplifier Circuit CTA-2006-B Power Rating: 500W RMS x 1 (4omh, 14.4V, < 1% THD+N); 750W RMS x 1 (2ohm, 14.4V, < 1% THD+N) S/N ratio: > 85dB (ref. 1W into 4ohm) THD+N < 0.02% (ref. 1W into 4ohm) Frequency Response: 10Hz to 400 Hz (+/- 3dB) Damping Factor: > 1500 Remote bass knob compatible (requires RUX-KNOB.2, sold separately) Alpine R-A75M Manual

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    $499.99

  • Alpine R-A90S : 6ch Automotive Amplifier, 75W x 4ch + 250W/150W x 2ch @ 2Ω/4Ω Alpine R-A90S : 6ch Automotive Amplifier, top side.

    Alpine R-A90S : 6ch Automotive Amplifier, 75W x 4ch + 250W/150W x 2ch @ 2Ω/4Ω

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    The R-A90S has a unique staggered power channel layout that has double the power on the last two channels. When looking to power a dual subwoofer configuration, the R-A90S’s 5th and 6th channels can be bridged to provide up to 500-watts at 4Ω. The R-A90S is matched in power and performance for the Dual 10-inch Alpine Halo S-Series Preloaded Subwoofer Enclosures with ProLink™. Thanks to the unique staggered power channel layout, the R-A90S can host different levels of power on each channel, compared to traditional, multi-channel amplifiers. This allows the R-A90S to grow with you as it can effectively function as both a 3-way active amplifier and a 5-channel amplifier by delivering the power you need to the channels where you need it the most.  Hear the subtle details you’ve been missing in your music. The R-A90S maintains an extremely low phase shift throughout the music spectrum, which minimizes audible imperfections in your music and allows your music to stay faithful to the original recording. With a hi-resolution frequency response, the R- A90S can reproduce sound with incredible accuracy that stays true to the artist’s intention. Using custom Alpine internal components originally launched in Alpine’s premium X-Series amplifiers, the R-A90S has dual post-filter feedback loops that correct signal distortion by making the output as close as possible to the original input for accurate sound reproduction. For the best possible sound experience, use the built-in bandpass, high pass, or low pass filter to individually power each component in your sound system and assign frequency bands for accurate and reliable sound reproduction. The R-A90S has input capability to add an optional RUX-KNOB.2 Remote Bass Control Knob (sold separately). The remote bass knob controls the bass in your subwoofer by adjusting the gain on your amplifier for quick bass adjustments when needed. Alpine’s R-Series line of speakers, subwoofers, and amplifiers have a heritage of sound quality that can be heard from a block away. The R-A90S is tuned to emphasize the characteristics of the R- Series speakers and subwoofers for a legendary R-Series experience. Features 6-Channel Amp with 5-Channel Power– With double the power on the last two channels, the R-A90S’s 5th and 6th channels can be bridged to provide up to 500-watts at 4Ω to a subwoofer system such as a pair of S-SB12Vs. An Amp that Grows with You – When you’re ready to upgrade your Alpine system, use the R-A90S to amplify a 3-way active system with enough mid-bass power to create the up-front bass impact you crave. Accurate Sound Reproduction – With incredibly low phase shift and hi-resolution frequency response, the R-A90S can reproduce sound with incredible accuracy that stays true to the artist’s intention.  Specifications Dimensions: 12.75" x 10.75" x 2" Hi-Resolution Audio Compliant (40k Hz)  Alpine’s Class D Amplifier Circuit  75W x 4 + 150W x 2 (4Ω, 14.4V, < 1% THD +N)  100W x 4 + 250W x 2 (2Ω, 14.4V, < 1% THD +N)  Bridged: 200W x 2 + 500W x 1 (4Ω, 14.4V, < 1% THD +N)  S/N > 85dB (ref. 1W into 4Ω)  THD + N < 0.03% (ref. 10W into 4Ω)  Frequency response: 10-45kHz (0/-3dB) Damping factor > 500 CTA-2006 Alpine R-A90S Manual

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    $599.99

  • JL Audio HD900/5 : 5ch Amplifier - 100W x 4, 500W x 1 RMS @ 1.5-4Ω JL Audio HD900/5 : 5ch Amplifier - 100W x 4, 500W x 1 RMS @ 1.5-4Ω, top side.

    JL Audio HD900/5 : 5ch Amplifier, 100W x 4, 500W x 1 RMS @ 1.5-4Ω

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    HD-Series 5-Channel Class-D System Amplifier, 100-Watts x 4ch + 500-Watts x 1ch @ 1.5-4-Ohms Thanks to its ability to act as a "one-box solution", the HD900/5 is ideal for installations where space is at a premium and sound quality is the paramount goal. While extremely compact, this amazing amplifier will comfortably drive a complete high-performance car audio system: that is, four satellite speaker systems and a subwoofer system... with a very serious 900 watts of power! Using JL's Single Cycle Control switching design and R.I.P.S. technology, the HD900/5 delivers 100W x 4 to its four main channels, plus a very meaty 500W to its subwoofer channel. Thanks to R.I.P.S., high power can be delivered over a wide range of load impedances, while the tight power supply regulation keeps distortion down, maximizing sound quality. From a pure sound quality perspective, we invite you to compare the real-world, in-car performance of this amplifier to any other amplifier on the market, of any type, at any price. This amplifier features a brushed aluminum finish with black powder-coated cast alloy heat sinks and bottom panel. A black powder-coated, gasketed cover is also provided to protect the controls. General Specifications Frequency Response (Main Channels) 12 Hz - 28 kHz (+0, -1dB) Frequency Response (Subwoofer Channel) 12 Hz - 10 kHz (+0, -1dB) S/N Ratio, referred to highest rated power (Main Channels) >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W (Main Channels) >88.2 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >400 / 50 Hz Damping Factor @ 2 Ω >200 / 50 Hz THD+N @ Rated Power (Main Channels) <0.03% @ 4 Ω THD+N @ Rated Power (Subwoofer Channel) <0.05% @ 4 Ω Input Voltage Range @ RCA Inputs Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) Min.Copper Power / Ground Wire Gauge Accepts up to 4 AWG wire Fuse Rating 60 A (AFS, AGU or MaxiFuse™) Main Channels @ 4 Ω 100 W RMS x 4 Main Channels @ 3 Ω 75 W RMS x 4 Main Channels @ 2 Ω 75 W RMS x 4 Main Channels @ 1.5 Ω 75 W RMS x 4 Main Channels - Bridged @ 8 Ω 200 W RMS x 2 Main Channels - Bridged @ 4 Ω 150 W RMS x 2 Subwoofer Channel @ 4 Ω 500 W RMS x 1 Subwoofer Channel @ 3 Ω 500 W RMS x 1 Subwoofer Channel @ 2 Ω 500 W RMS x 1 Subwoofer Channel @ 1.5 Ω 500 W RMS x 1 JL Audio HD900/5 Brochure

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    $1,499.99

  • JL Audio MHD900/5 : 5ch Marine Amplifier, 100W x 4 + 500W Mono @ 1.5-4Ω JL Audio MHD900/5 : 5ch Marine Amplifier, top side.

    JL Audio MHD900/5 : 5ch Marine Amplifier, 100W x 4 + 500W Mono @ 1.5-4Ω

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    MHD-Series 5-Channel Class-D Marine Grade Amplifier, 100-Watts x 4ch + 500-Watt Mono @ 1.5-4Ω Thanks to its ability to act as a "one-box solution", the MHD900/5 is ideal for installations where space is at a premium and sound quality is the paramount goal. While extremely compact, this amazing amplifier will comfortably drive a complete high-performance marine audio system: that is, four satellite speaker systems and a subwoofer system... with a very serious 900 watts of power! Using JL Audio's Single Cycle Control switching design and R.I.P.S technology, the MHD900/5 delivers 100W x 4ch, plus a very meaty 500W to its subwoofer channel. Thanks to R.I.P.S., high power can be delivered over a wide range of load impedances, while the tight power supply regulation keeps distortion down, maximizing sound quality. This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment. Specifications Main Channels @ 4 Ω 100 W RMS x 4 Main Channels @ 3 Ω 75 W RMS x 4 Main Channels @ 2 Ω 75 W RMS x 4 Main Channels @ 1.5 Ω 75 W RMS x 4 Main Channels - Bridged @ 8 Ω 200 W RMS x 2 Main Channels - Bridged @ 4 Ω 150 W RMS x 2 Subwoofer Channel @ 4 Ω 500 W RMS x 1 Subwoofer Channel @ 3 Ω 500 W RMS x 1 Subwoofer Channel @ 2 Ω 500 W RMS x 1 Subwoofer Channel @ 1.5 Ω 500 W RMS x 1 Frequency Response (Main Channels) 12 Hz - 28 kHz (+0, -1dB) Frequency Response (Subwoofer Channel) 12 Hz - 10 kHz (+0, -1dB) S/N Ratio, referred to highest rated power (Main Channels) >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W (Main Channels) >88.2 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >400 / 50 Hz Damping Factor @ 2 Ω >200 / 50 Hz THD+N @ Rated Power (Main Channels) <0.03% @ 4 Ω THD+N @ Rated Power (Subwoofer Channel) <0.05% @ 4 Ω Input Voltage Range @ RCA Inputs Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) Min.Copper Power / Ground Wire Gauge Accepts up to 4 AWG wire Fuse Rating 60 A (AFS, AGU or MaxiFuse™) Filter Mode(s): Channels 1 & 2 (front) High-Pass only Filter Slope(s): Channels 1 & 2 (front) 12/24 dB/octave Filter Frequency Range: Channels 1 & 2 (front) 50 Hz - 500 Hz Filter Mode(s): Channels 3 & 4 (rear) High-Pass only Filter Slope(s): Channels 3 & 4 (rear) 12/24 dB/octave Filter Frequency Range: Channels 3 & 4 50 Hz - 500 Hz Filter Mode(s): Subwoofer Channel Low-Pass only Filter Slope(s): Subwoofer Channel 12/24 dB/octave Filter Frequency Range: Subwoofer Channel 50 Hz - 500 Hz Detented, Calibrated Filter Freq. Potentiometers Yes Filter Defeat Function Yes Infrasonic Filter: Subwoofer Channel 30 Hz, Defeatable Remote Level Control Optional (HD-RLC) Remote Level Modes Sub Ch. only Channel Input Mode Switch Yes (2/4/6 ch.) Pass-Through Preamp Output None Source Channel Selection for PreOuts N/A JL Audio MHD900/5 Manual

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    $1,599.99

  • JL Audio MHD900/5-24V : 5ch 24V Marine Amplifier, 100W x 4 + 500W Mono @ 1.5-4Ω JL Audio MHD900/5-24V : 5ch 24V Marine Amplifier, top side.

    JL Audio MHD900/5-24V : 5ch 24V Marine Amplifier, 100W x 4 + 500W Mono @ 1.5-4Ω

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    MHD-Series 5-Channel Class-D 24-Volt Marine Grade Amplifier, 100-Watts x 4ch + 500-Watt Mono @ 1.5-4Ω Thanks to its ability to act as a "one-box solution", the MHD900/5-24V is ideal for installations where space is at a premium and sound quality is the paramount goal. While extremely compact, this amazing amplifier will comfortably drive a complete high-performance marine audio system: that is, four satellite speaker systems and a subwoofer system... with a very serious 900 watts of power! Using JL Audio's Single Cycle Control switching design and R.I.P.S technology, the MHD900/5-24V delivers 100W x 4ch to its four main channels, plus a very meaty 500W to its subwoofer channel. Thanks to R.I.P.S., high power can be delivered over a wide range of load impedances, while the tight power supply regulation keeps distortion down, maximizing sound quality. This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment. This amplifier is designed for operation in vessels with 24 volt, negative-ground electrical systems. Use of this product in vessels with positive ground and/or voltages other than 24V may result in damage to the product and will void the warranty. Specifications Main Channels @ 4 Ω 100 W RMS x 4 Main Channels @ 3 Ω 75 W RMS x 4 Main Channels @ 2 Ω 75 W RMS x 4 Main Channels @ 1.5 Ω 75 W RMS x 4 Main Channels - Bridged @ 8 Ω 200 W RMS x 2 Main Channels - Bridged @ 4 Ω 150 W RMS x 2 Subwoofer Channel @ 4 Ω 500 W RMS x 1 Subwoofer Channel @ 3 Ω 500 W RMS x 1 Subwoofer Channel @ 2 Ω 500 W RMS x 1 Subwoofer Channel @ 1.5 Ω 500 W RMS x 1 Frequency Response (Main Channels) 12 Hz - 28 kHz (+0, -1dB) Frequency Response (Subwoofer Channel) 12 Hz - 10 kHz (+0, -1dB) S/N Ratio, referred to highest rated power (Main Channels) >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W (Main Channels) >88.2 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >400 / 50 Hz Damping Factor @ 2 Ω >200 / 50 Hz THD+N @ Rated Power (Main Channels) <0.03% @ 4 Ω THD+N @ Rated Power (Subwoofer Channel) <0.05% @ 4 Ω Input Voltage Range @ RCA Inputs Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) Min.Copper Power / Ground Wire Gauge Accepts up to 4 AWG wire Fuse Rating 30 A (AFS, AGU or MaxiFuse™) Filter Mode(s): Channels 1 & 2 (front) High-Pass only Filter Slope(s): Channels 1 & 2 (front) 12/24 dB/octave Filter Frequency Range: Channels 1 & 2 (front) 50 Hz - 500 Hz Filter Mode(s): Channels 3 & 4 (rear) High-Pass only Filter Slope(s): Channels 3 & 4 (rear) 12/24 dB/octave Filter Frequency Range: Channels 3 & 4 50 Hz - 500 Hz Filter Mode(s): Subwoofer Channel Low-Pass only Filter Slope(s): Subwoofer Channel 12/24 dB/octave Filter Frequency Range: Subwoofer Channel 50 Hz - 500 Hz Detented, Calibrated Filter Freq. Potentiometers Yes Filter Defeat Function Yes Infrasonic Filter: Subwoofer Channel 30 Hz, Defeatable Remote Level Control Optional (HD-RLC) Remote Level Modes Sub Ch. only Channel Input Mode Switch Yes (2/4/6 ch.) Pass-Through Preamp Output None Source Channel Selection for PreOuts N/A JL Audio MHD900/5-24V Manual

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    $1,649.99

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