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50W x 8 @ 4Ω

Amplifiers with a Power Output Rating of 50-Watts x 8-Channels, 4-Ohm Final Impedance

Amplifiers with a Power Output Rating of 50-Watts x 8-Channels, 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 50-Watt, or 50W for short, RMS rating should be paired with a fifty-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 50W @ 4-ohm might put out 100-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.

1 product

  • Alpine HDP-D90 : 12ch Hi-Res Automotive Amplifier, 50W x 8ch + 80W x 4ch @ 4Ω Alpine HDP-D90 : 12ch Hi-Res Automotive Amplifier, top side.

    Alpine HDP-D90 : 12ch Hi-Res Automotive Amplifier, 50W x 8ch + 80W x 4ch @ 4Ω

    Pre-Order Today!

    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. Building a sound system while overcoming acoustical challenges in the interior environment of the vehicle is no easy feat, however, the HDP-D90 14-Channel Hi-Res Digital Sound Processor Amplifier provides flexible system building and Hi-Res processing power up to 192kHz/24 Bit for an infallible listening experience. Custom developed for Hi-Res Playback, the HDP-D90 has a 192kHz/64Bit internal sampling rate and an ultra-wide audio bandwidth of 10Hz-110kHz for recording studio-level sound. Intentional designs, like a copper-plated chassis, bring the signal-to-noise ratio up to >110dB and minimize noise and distortion during playback for complete music fidelity that’s true to the original source. The HDP-D90 includes multiple source inputs for flexible system building for the option to retain a factory head unit, add an aftermarket head unit, or the Alpine Status HDS-990 Digital Media Controller. For older vehicles with no source player, the HDP-D90 can also function as a standalone music source and can receive music sent directly from a smartphone with Bluetooth® wireless streaming. When paired with the Hi-Res HDS-990 Digital Media Player, you unlock even more control options for your processor while getting the highest-quality playback possible in your vehicle. With 12-channels of amplifier outputs, the HDP-D90 can be used as a standalone source to power a 2-Way Speaker System, or for a more dynamic listening experience, includes 10- channels of RCA output for adding additional amplifiers to power a 3-way speaker system. The Alpine Status System is sold separately and can be used to build a custom sound system. 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 High-Performance 14-Channel Digital Sound Processor Amplifier  Hi-Res Audio Playback (192kHz/24Bit)  PC Tuning Application  Selectable pre-configured sound system configurations  Embedded RTA signals for sound tuning  Bluetooth® audio streaming with included external module   Optional Controller   Specifications Hi-Res Audio Playback (192kHz/24Bit)  14-Channel Inputs (All DSP control) Inputs: 12-Channel Hi-level/2-Channel RCA/Optical (SPDIF)/Coaxial (Digital)  Outputs: 10-Channel RCA output/ 12-Channel High-Level amplified outputs (50W x 8 @ 4ohm + 80W x 4 @4ohm) 31 Band Parametric or Graphic EQ  Channel mixing by Matrix Input Summing Sampling Rate = Internal: 192kHz/32Bit  S/N: >110dB, THD: <0.001% Hi pass/low pass crossover per channel Time correction: up to7mm delay per channel Sigma DSP (ADAU1467x2)

    Pre-Order Today!

    $2,399.99

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