Alpine S2-A36F Next Generation S-Series 4-Channel 90W RMS x 4 at 2 Ohms, Class-D Hi-Res Audio Certified Car Amplifier
We are a Alpine authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
What's Inside?
- • 4-Channel amplifier (40A ATO fuse installed)
- • (2) End caps
- • (4) 3/4" screws
- • (4) 1/4" screws
- • 2mm Allen key
- • Alpine Verification Certificate
- • Warranty information
- • Power supply note
- • On-line product registration information
- • Owner's Manual
Why Choose Alpine S2-A36F 4-Channel Amplifier?
Next-Level Clarity and Performance
The Next-Generation Alpine S-Series S2-A36F 4-Channel Amplifier sets a new standard for affordable, high-fidelity sound. Hi-Res Audio Certified and capable of reproducing frequencies up to 40kHz, it delivers incredible detail, clarity, and precision for true studio-quality playback. Combined with Alpine’s refined S-Series design, this amplifier redefines what entry-level performance can achieve—powerful, clean, and perfectly balanced audio at an unbeatable value.
Smart Integration for Modern Vehicles
The Next-Gen S-Series Amplifiers introduce a new selectable remote turn-on circuit with a three-position switch, ensuring the amplifier powers on and off precisely when it should. This intelligent design is essential for today’s advanced vehicle electronics, allowing seamless integration with both factory and aftermarket systems for a hassle-free, reliable setup.
Thoughtful Design and Easy Accessibility
The amplifier’s side-mounted sound controls offer convenient access to gain and crossover adjustments, especially when installed in tight or under-seat spaces. To maintain a refined look, removable end caps conceal the side controls and connections, giving the amplifier a clean, sleek, and professional finish that complements any vehicle interior.
Frequently Asked Questions (FAQ)
- • Can I power both my front and rear speakers with this amplifier?
Yes, it's designed to power up to four full-range speakers with clean, consistent output. It's a great choice for upgrading your entire cabin audio system.
- • Why does the amplifier keep going into protect mode?
This usually happens because of incorrect wiring, overheating, or a speaker load below the recommended impedance. Check all wiring connections and make sure the amplifier has proper ventilation.
- • Can I bridge two channels to power a subwoofer?
Yes, the amplifier supports bridged operation if the speaker impedance meets the manufacturer's specifications. Always follow the recommended wiring diagram to avoid damage.
- • Can I use this for a 3-speaker system with a subwoofer instead of four speakers?
Yes, a common setup uses the front two channels for a pair of speakers while the rear channels are bridged to power a single subwoofer. This gives you full-range sound up front and dedicated bass output from the same amplifier.
- • Will this work with my factory radio?
Yes, it can be connected to many factory stereos using speaker-level inputs or a line output converter. This allows you to improve sound quality without replacing the factory head unit.
- • Why do my speakers distort before reaching maximum volume?
Distortion is often caused by incorrect gain settings or amplifier clipping. Proper gain adjustment helps produce louder and cleaner sound.
- • Does this amplifier get hot during normal use?
Yes, some heat is expected when the amplifier is operating. Make sure it has enough airflow to maintain safe operating temperatures.
- • What size power wire should I use?
The proper wire size depends on the amplifier's current requirements and cable length. Using the recommended gauge helps ensure reliable performance and stable voltage.
- • Can I upgrade my speakers later without replacing this amplifier?
Yes, it works with many aftermarket coaxial and component speakers. Just make sure the new speakers match the amplifier's power and impedance ratings.
- • How do I know if I'm using the correct power supply voltage?
An abnormal voltage will trigger the protection circuit and the indicator light will turn blue instead of remaining in its normal state. Verify the vehicle's electrical system is supplying the correct voltage range and that the power wire gauge is adequate before troubleshooting further.
- Low Frequency Response : 50-400 Hz
- High Frequency Response : 50-400 Hz
- Number of Channels : 4
- Frequency Response : 10-40000 Hz
- Built In Crossovers : Yes
- RMS Power Output : 4x90 Watts
- Amplifier Class : D
- Fuse Rating : 40 A
Features:
- Hi-Res Audio Certified (Up to 40kHz): Delivers ultra-clear, high-frequency detail for lifelike sound reproduction.
- Advanced Class D Circuit: Alpine’s efficient Class D design ensures powerful output with minimal distortion and heat.
- 4-Channel Versatility: Perfect for powering speakers or bridging for subwoofers, offering flexible system setups.
- Two-Sided Terminal Layout: Streamlines installation and cable routing for a clean, organized setup.
- Selectable & Adjustable Crossovers: Customize your frequency cutoffs for precise tuning and balanced performance.
- Variable Mid-Bass EQ Circuit: Enhances upper bass response for more punch and warmth in your music.
- Remote Bass Control Ready: Compatible with RUX-KNOB.2 or RUX-H01 (sold separately) for on-the-fly bass adjustments.
Specifications:
- 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
- Bridged Power (Watts x Channels): 180 x 2
- Minimum Impedance Bridged: 4
- Minimum Impedance Unbridged: 2
- Minimum Impedance: 2
- Best Frequency Response: 10-40k Hz
- THD at Rated RMS Power: ---
- Signal to Noise Ratio: ---
- Input Voltage: ---
- Amplifier Class: D
- 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: ---
- Fan Cooled: ---
- Fuse Rating: 40
- Speaker Level Inputs: Yes
- Preamp Outputs: No
- Width (inches): 8-3/4
- Height (inches): 2-1/4
- Depth (inches): 8-1/4
- UPC: 793276085177
- Weight: 7
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
Do you own this product?
Write a review!
-
Hooked up my rear and front door speakers running at 4 ohms into the amp. This tiny amp is pushing the speakers easily without any fuzzy sound. Much power from a Class D amplifier!
-
If you're looking for a small but mighty amp, this is it. Clean sound, plenty of power, and has flexible setup options. The clarity and punch it delivers make my system come alive.
