High-resolution power Alpine's Next Generation S-Series S2-A36F 4-channel amplifier delivers 60 watts RMS of pristine high-fidelity signal to each of your car's front and rear speakers, adding sweet, clear sound to your ride. The amp's extended high-frequency response brings your music to life, with its precise details and emotional power clearly revealed. For a 3-channel 2-way system, you could also use the amp to drive a pair of front speakers with 60 watts RMS each, while powering a subwoofer with 180 Watts RMS from the bridged rear channels. A variable mid-bass boost on those rear channels allows you to dial in some extra kick and impact to your system's low-frequency sound. You can even add an optional wired remote to control the level of the rear channels from your front seat. More convenient features High- and low-pass filters put you in command of the frequency spectrum that reaches your speakers and subs. The amp includes preamp- and speaker-level inputs, so you can install it in almost any vehicle, even one with a factory radio. When using the speaker-level inputs, the amp can sense the incoming signal and turn itself on, eliminating the need to run a separate turn-on wire to the receiver or fuse box. Product highlights: 4-channel car amplifier 60 watts RMS x 4 at 4 ohms 90 watts RMS x 4 at 2 ohms 180 watts RMS x 2 bridged at 4 ohms Hi-Res Audio Certified (frequency response: 20-40k Hz) variable high- and low-pass filters (50-400 Hz, 12 dB/octave) variable mid-bass boost (0-12 dB at 100 Hz) on Ch 3/4 optional wired remote available for Ch 3/4 More info: preamp and speaker-level inputs speaker-level inputs handle up to 10V RCA adapters required for speaker-level input signal-sensing turn-on with speaker-level inputs wiring and hardware not included with amplifier 8-gauge power and ground leads recommended fuse rating: 40A x 1 dimensions: 8.66"W x 2.21"H x 8.3"D warranty: 1 year MFR # S2-A36F Item # 500S2A36F California customers: Please click here for your Proposition 65 WARNING. What's in the box: If you need assistance accessing this owner's manual, please give us a call. 4-Channel amplifier (40A ATO fuse installed) 2 End caps Four 3/4" screws Four 1/4" screws 2mm Allen key Owner's manual (En/ Sp/ Fr/ Others) Alpine Verification Certificate Warranty information Power supply note On-line product registration information Features & specs Performance RMS Power Output (Watts x Channels) 60 x 4 Peak Power Output (Watts x Channels) --- Power at 2 Ohms (Watts x Channels) 90 x 4 Power at 1 Ohm (Watts x Channels) --- Bridged Power (Watts x Channels) 180 x 2 Minimum Impedance Bridged 4 Minimum Impedance Unbridged 2 Best Frequency Response 10Hz-40k Hz THD at Rated RMS Power 1% Signal to Noise Ratio 83 dB Input Voltage 14.4v Features Amplifier Class D Built-in DSP No Remote Control Optional (channels 3/4) Low-Pass Crossover Frequency 50-400 Hz Low-Pass Slope (dB/octave) 12 dB/octave High-Pass Crossover Frequency 50-400 Hz High-Pass Slope (dB/octave) 12 dB/octave Bass Boost 0-12 dB Bass Boost Frequency 100 Hz Fan Cooled No Fuse Rating 40 Speaker Level Inputs Yes Preamp Outputs No Width (inches) 8-11/16 Height (inches) 2-1/4 Depth (inches) 8-5/16 Parts Warranty 1 Year Labor Warranty 1 Year The Alpine S2-A36F replaces these items: Alpine S-A32F Features CTA-2006 Compliant: CTA-2006 is a system of testing and measurement for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring amplifier power uses a DC input voltage of 14.4 volts and the RMS power output is measured over a frequency range of 20 Hz to 20 kHz (for full range amplifiers), with 1% or less Total Harmonic Distortion plus noise (THD+N). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CTA-2006 standards allow consumers to compare car amplifiers and receivers under the same conditions (apples to apples). CTA-2006 Specifications: Power Output: 60 watts RMS x 4 into 4Ω Signal to Noise Ratio: 83 dBA (measured at 1 watt into 4Ω) Other Specifications: Power Output: 2Ω: 90 watts RMS x 4 (14.4 volts, =1.0% THD+N) Bridged: 180 watts RMS x 2 (14.4 volts, into 4Ω) Signal to Noise Ratio: 98 dB (at rated power output, into 4Ω) Frequency Response: +0/-3 dB (1W into 4Ω): 10 Hz - 30 kHz +0/-1 dB (1W into 4Ω): 20 Hz - 20 kHz Controls Gain Control: There are independent rotary gain controls for Channels 1/2 and Channel 3/4. The amp will accept preamp level signals from 0.2 volts to 4.0 volts or speaker level signals from 0.5 volts to 10 volts. Turn-On Type/Input Level: A 3-way switch lets you select both the amp activation method and the input signal type. Choices include: DC/HI: Used when running speaker-level inputs and using DC offset to trigger the amp. REM/HI: Used when running speaker-level inputs, but using a +12V trigger wire (REM) to activate the amp. REM/LO: Used when running RCA pre-amp signals into the amp and connecting a +12V trigger wire (REM) to activate the amp. Crossovers: Channels 1/2 and 3/4 have independent crossovers. Each crossover has a 3-position switch to direct how it operates and both crossovers have a slope of 12 dB/octave. Off: output is full range HP: High Pass; crossover point is adjustable from 50 Hz to 400 Hz LP: Low Pass; crossover point is adjustable from 50 Hz to 400 Hz Mid Bass EQ: A rotary dial lets you add 0 to +12dB of boost at 100Hz. Optional Remote Control: The amplifier has an RJ-25 jack for adding the optional RUX-KNOB.2 wired remote level control for adjusting the channel 3/4 output remotely. The remote has a 20dB adjustment range (-20 dB to 0 dB relative to the gain setting). Connections Power/Ground: Two set-screw terminals connect the power and ground cables. The terminals accept up to 8-gauge wire (an 8-gauge wiring kit is recommended). The set screws are tightened/loosened with the included 2mm Allen wrench. Remote Turn-on: The remote turn-on set screw terminal will accept up to 8-gauge wire. The set screw is tightened/loosened with the included 2mm Allen wrench. Speaker Outputs: The four pair of speaker outputs' set-screw terminals will accept up to 10-gauge wire. The set screws are tightened/loosened with the included 2mm Allen wrench. Signal Input: Two pair of RCA jacks, labeled Channel 1/2 and Channel 3/4, connect to preamp level or speaker level input signals. If connecting the source unit's speaker wire to the input jacks, use a Speaker-to-RCA adapter or splice speaker wire to an RCA plug. When using a speaker level input signal, it may not be necessary to connect a remote turn-on lead because of the amplifier's remote sensing function. Fuses: The 40-amp ATO fuse protects the amplifier. Another fuse (40-amp minimum) should be placed on the +12V power wire within 18" of the battery.
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