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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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RD-Series 5-Channel Automotive Amplifier, 70-Watts x 4ch + 500-Watt Mono @ 2-Ohm Crafted as an all-in-one, total system solution, the RD900/5 is engineered to power a complete audio system consisting of a subwoofer + four satellite system with 900 watts of high-performance sound. Equipped with JL's exclusive NexD™ switching technology, this complete power package efficiently generates a potent 70 watts of crystal-clear audio into 4 ohms, plus a robust 500 watts for a subwoofer system, all from a single compact chassis. Each pair of main channels is also fully bridgeable, stoutly producing 200 watts of full-range audio bliss (into 4 ohms), creating an ultra-powerful 3-channel amplifier. Conveniently located on top of the RD900/5, you’ll find a complement of studio-grade signal processing features, all hidden beneath a removable protective cover. Each pair of main channels is equipped with a 12 dB / octave high-pass filter, with a dedicated low-pass filter for its subwoofer channel. All three crossovers offer continuously variable frequency selection from 50-500 Hz, for precise filtering. Dual-range, differential-balanced inputs are also onboard, capable of accepting most input voltage levels, plus automatic turn-on capability (via signal sensing or DC-offset sensing) for maximum versatility. LED clipping indicators are also standard equipment for each channel section. This all-new, innovative feature lets you easily set your amplifier’s input sensitivity settings, quickly and accurately, with no special equipment needed. The RD900/5 features a durable, black powder-coated finish and a top-mounted, dual-color LED light strip that reports the overall status and condition. With the addition of an RBC-1 remote level control (sold separately), you can conveniently control the subwoofer’s output remotely from the driver’s seat. Specifications Frequency Response (Main Channels) 12 Hz - 22 kHz (+0, -1dB) Frequency Response (Subwoofer Channel) 10 Hz - 500 Hz (+0, -1dB) S/N Ratio, referred to highest rated power (Main Channels) >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) S/N Ratio, referred to 1 W >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) Damping Factor @ 4 Ω >150 / 50 Hz Damping Factor @ 2 Ω >75 / 50 Hz THD+N @ Rated Power (Main Channels) <1% @ 2 Ω per Ch. THD+N @ Rated Power (Subwoofer Channels) <1% @ 2 Ω per Ch. 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 4 AWG wire Fuse Rating 80 A (AFS, AGU or MaxiFuse™) Main Channels @ 4 Ω 70 W RMS x 4 Main Channels @ 2 Ω 100 W RMS x 4 Main Channels - Bridged @ 4Ω 200 W RMS x 2 Subwoofer Channel @ 4 Ω 225 W RMS x 1 Subwoofer Channel @ 3 Ω 325 W RMS x 1 Subwoofer Channel @ 2 Ω 500 W RMS x 1 Subwoofer Channel @ 1.5 Ω N/A JL Audio RD900/5 Manual

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2-Channel Marine Amplifier, 200-Watt x 2ch @ 2-Ohm, or 100-Watt x 2 @ 4-Ohm This KXM 2ch marine amplifier uses Class D power technology, KickEQ+™ for 18dB of amplified variable bass boost, and a powerful 24dB crossover and subsonic filter to give you onboard acoustic control to quickly tune your setup. A wireless remote controlled bass knob is also included for tuning your subs on the fly. This Kicker KXM 2 channel weatherproof amplifier can be used to power 200W into a 2Ω load or 100W into a 4Ω load. Specifications RMS Power [Watts] @ 14.4V, 4Ω stereo, ≤ 1% THD+N : 100 x 2@ 14.4V, 2Ω stereo, ≤ 1% THD+N : 200 x 2@ 14.4V, 4Ω bridged mono, ≤ 1% THD+N: 400 x 1 Length [in, cm] 9 9∕16 , 24.4 Height [in, cm] 2 ⅛, 5.5 Width [in, cm] 8 5⁄16 , 21 Frequency Response ± 1dB 10Hz–20kHz Signal-to-Noise Ratio [dB] 95 Input Sensitivity 250mV-10V Selectable Electronic Crossover OffVariable HP, 10-500HzVariable LP, 40-500Hz; 400Hz–5,000Hz with 10X Switch (BP capable)Slope: 24dB/octave KickEQ+™ Bass Boost 0-18dB @ 40Hz CEA Power 100 x 2 @ 4 ohms, 14.4VDC, 1% THD, CEA-2006B (Watts) CEA Signal-to-Noise Ratio -75dB CEA-2006B (ref: 1W, A-weighted) Kicker KXMA Amplifier Manual

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