Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier & RUX-KNOB.2 Remote Bass Knob Bundle

Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier, Hi-Res Certified, 1200W RMS at 1 & 2-Ohm -
Unparalled Power - Alpine’s S-Series S2-A120M 1200W Mono Amplifier is the perfect solution for unparalleled power and performance on a budget. With a power output of 1200W at a 1ohm or 2ohm drive, this mono amp is capable of driving even the most demanding subwoofers, delivering clean and distortion-free bass for a wide range of applications.

MAIN FEATURES
• 1200W Mono Amplifier
• Alpine’s Class D Amplifier Circuit
• Two-Sided Terminal Layout
• Built-in Selectable / Adjustable Crossovers
• Optional Remote Bass Knob Compatible (required RUX-KNOB.2 or RUX-H01, sold separately)

TECH SPECS
• Dimensions: 13.1” W x 2.25” H x 8.25” D
• Weight: 8 lbs, 11 oz
• Power Rating: 14.4V, < 0.1% THD +N
• Power Output: 600W x 1 @ 4Ω, 1200W x 1 @ 2Ω, 1200W x 1 @ 1Ω
• S/N Ratio: >85dB
• Frequency Response: 20Hz – 400Hz
• Damping Factor: >750

Alpine RUX-KNOB.2 Remote Bass Knob

Creative Audio opened in 1991 and has grown into a multi-location specialty retailer with seven stores across Missouri and Arkansas. We support enthusiasts, installers, and everyday customers with product knowledge, practical guidance, and a service-first approach that extends beyond the checkout.

We are deeply invested in performance-focused audio across categories: car audio, marine, powersports, and home audio. That means more than selling gear — it means understanding system matching, power requirements, signal integration, real-world installation considerations, and the small details that determine whether a system performs the way it should.

Our teams work daily with source units and processors, amplifiers, speakers, subwoofers, wiring and installation accessories, sound treatment, and integration solutions. We also support remote start and vehicle security categories for customers who want added convenience and protection.

Creative Audio employs Mobile Electronics Certified Professionals, and we support customers before and after the sale. If you are unsure about compatibility, installation requirements, or what is included, message us through eBay with your application details and we will help you make an informed decision.

Most orders ship within 24 hours.

Orders are packaged carefully and ship promptly to the address provided at checkout. If something arrives damaged or incomplete, contact us through eBay messages right away and we will help you resolve it.

Returns are accepted within 30 days in accordance with the return terms shown on this listing. Items must be returned in original condition. International returns are not accepted.