Skip to content
  • Our Stores
  • Contact
  • FAQ
  • Privacy Policy
  • Returns
  • Newsletter

    Sign up for Newsletter

    Signup for our newsletter to get notified about sales and new products. Add any text here or remove it.

    Nix WarehouseNix Warehouse
    • SHOP
      • Shop by Categories
      • Shop By Brands
      • Sales
    • Used Parts
    • Login
    • Cart / $264.98 2
        • × Onyx Movement Dynamic Paddle Sports Vest - Yellow/Grey - M/LOnyx Movement Dynamic Paddle Sports Vest - Yellow/Grey - M/L
          1 × $84.99
        • × Fusion Apollo™ Marine Zone Amplifier - 140WFusion Apollo™ Marine Zone Amplifier - 140W
          1 × $179.99

        Subtotal: $264.98

        View cartCheckout

    • 2
      Cart
      • × Onyx Movement Dynamic Paddle Sports Vest - Yellow/Grey - M/LOnyx Movement Dynamic Paddle Sports Vest - Yellow/Grey - M/L
        1 × $84.99
      • × Fusion Apollo™ Marine Zone Amplifier - 140WFusion Apollo™ Marine Zone Amplifier - 140W
        1 × $179.99

      Subtotal: $264.98

      View cartCheckout

    Customer matched zone "USA"
    “Fusion Apollo™ Marine Zone Amplifier – 140W” has been added to your cart. View cart
    Add to wishlist
    Roswell R1 650.4 4-Channel Marine Amplifier
    Roswell R1 650.4 4-Channel Marine Amplifier - Image 2
    Home / Entertainment > Amplifiers

    Roswell R1 650.4 4-Channel Marine Amplifier

    SKU: 100981 Categories: Entertainment > Amplifiers, Uncategorized
    Roswell Marine
    • Description
    • Brand
    • Accessories
    • Literature
    • Videos

    R1 650.4 4-Channel Marine Amplifier

    The R1 650.4 marine-grade amplifier from Roswell, is everything a boat’s audio system has always wanted. These stackable amplifiers utilize a 4-channel Class-D design that puts out 100 watts RMS per channel at 4Ω and is perfect for powering an R1 6.5″ marine speaker setup.

    Easily bridge and tune with the calibrated crossover controls. Because LEDs create lots of noise issues, this amp features differential RCA inputs for maximum noise rejection. The R1 650.4 is built with fully conformal-coated PCBs and nickel-plated marine-grade wire terminals to ensure their quality.

    Features:

    • Ch 1-4 calibrated crossover (FULL/HPF/LPF)    
    • Space-saving stackable design
    • Bridgeable 4-channel design
    • Marine-grade durability
    • 2 Ohm Stable at 165 watts per channel    
    • High-Efficiency Class-D Topology
    • Conformal-coated PCBs 
    • The lit logo power indicator lets you know your amp is receiving power    
    • Nickel-plated wire terminals
    • Switchable Differential RCA inputs minimize interference and induced noise

    Specifications:

    • Continuous Power (RMS): 4Ω: 100W x 4 / 2Ω: 165W x 4 
    • Bridged: 4Ω: 300W x 2
    • Frequency Response: 10Hz – 25Hz
    • Input Sensitivity: 0.2–10.0V
    • HPF (High Pass Filter): 30Hz – 300Hz
    • LPF (Low Pass Filter): 30Hz – 300Hz
    • Bass EQ: 0-18dB @ 45Hz
    • Subsonic Filter: 10Hz – 55Hz
    • Dimensions: Inches: 1.90 x 7.06 x 11.125 Centimeters: 4.83 x 17.94 x 28.26

    Brand

    Roswell Marine

    Accessories

    • Roswell Marine Amp Wiring Kit
    • Roswell 5M 6-Channel RCA Cable
    • Roswell .5M 2-Channel RCA Cable
    • Roswell 1M 2-Channel RCA Cable
    • Roswell 5M 2-Channel RCA Cable
    • Roswell 1M to 2F Y Adapter
    • Roswell 1F to 2M Y Adapter
    • Roswell R1 Amp Spacers
    • Roswell 1-In 2-Out Ground Distribution Block
    • Roswell 1-In 4-Out Fused Distribution Block
    • Roswell 1-In 4-Out Ground Distribution Block

    No literature available for this product.

    No videos available for this product.

    Related products

    Fusion Apollo Monoblock Marine 650-Watt RMS Amplifier
    Add to wishlist
    Quick View
    Out of stock

    Entertainment > Amplifiers

    Fusion Apollo Monoblock Marine 650-Watt RMS Amplifier

    Fusion
    $138.99

    Apollo Monoblock Marine 650-Watt RMS Amplifier Add extra power to a system with this 2000-watt (650-watt RMS) monoblock amplifier that’s specifically designed to power a subwoofer. This efficient, easy-to-install monoblock amplifier works with your compatible Fusion stereo system. Features: Keep the music going for longer without draining your battery as quickly No more manual adjustments [...]

    Read more
    Fusion Apollo Marine 4 Channel 1200-Watt Amplifier
    Add to wishlist
    Quick View

    Entertainment > Amplifiers

    Fusion Apollo Marine 4 Channel 1200-Watt Amplifier

    Fusion
    $649.99

    Apollo Marine 4 Channel 1200-Watt Amplifier This 4-channel amplifier with 150-watt RMS per channel can power up to four pairs of speakers or two pairs of speakers and one subwoofer. It includes high-power mode adapters for simple bridging to increase power. Features: Keep the music going for longer without draining your battery as quickly No [...]

    Add to cart
    Whale IC Retail Kit 12V Gulper IC Pump & Strainer IC
    Add to wishlist
    Quick View

    Uncategorized

    Whale IC Retail Kit 12V Gulper IC Pump & Strainer IC

    Whale Marine
    $419.99

    IC Retail Kit 12V Gulper IC Pump & Strainer IC At the heart of every Whale IC product lies innovative electronic control circuitry.This enables IC sensor accessories to communicate directly with IC pumps to control their performance. Features & Benefits Save time and money by reducing four separate components to one pre-wired system. Remote mounting [...]

    Add to cart
    JENSEN POWER760 4-Channel Amplifier - 760W
    Add to wishlist
    Quick View

    Entertainment > Amplifiers

    JENSEN POWER760 4-Channel Amplifier – 760W

    JENSEN
    $198.99

    POWER760 4-Channel Amplifier – 760W Time to stretch your sound muscles with the POWER760 4 channel amplifier. It tops out at 760W of peak power, has a protection circuit that safeguards against short circuits, DC offset and thermal overload, a channel mode selector which allows you to switch from 4, 3 or 2.  It’s time [...]

    Add to cart
    Polk Audio PA D4000.4 PAD Series 4-Channel Amplifier - 400W
    Add to wishlist
    Quick View

    Entertainment > Amplifiers

    Polk Audio PA D4000.4 PAD Series 4-Channel Amplifier – 400W

    Polk Audio
    $491.99

    PA D4000.4 PAD Series 4-Channel Amplifier – 400W When install space is at a premium, but your sound system demands plenty of power to realize its full potential, Polk Audio’s new super-efficient D Series amplifiers are a very cool solution.  Polk’s PA D4000.4 4-channel amplifier may be small, but it can power your front and [...]

    Add to cart
    Simrad RJ45-M Ethernet Adapter Cable
    Add to wishlist
    Quick View

    Uncategorized

    Simrad RJ45-M Ethernet Adapter Cable

    Simrad
    $25.99

    RJ45-M Ethernet Adapter Cable RJ45-Yellow Round Ethernet adapter cable for Simrad NSO evo2 and Zeus2 displays.

    Add to cart
    Airmar M265C-LH Low/High CHIRP In-Hull Transducer
    Add to wishlist
    Quick View
    Out of stock

    Uncategorized

    Airmar M265C-LH Low/High CHIRP In-Hull Transducer

    Airmar
    $1,717.50

    M265C-LH Low/High CHIRP In-Hull Transducer The Airmar M265C-LH is a 1,000W transducer designed to work with chirp sonar systems and utilizes the Low and High-Frequency ranges (Frequency Range Below). The M265C has 8 highly sensitive internal broadband ceramic assemblies to accurately mark depth, bait, and fish, making it the perfect choice for commercial and recreational [...]

    Read more
    Roswell R1 550.2 2-Channel Marine Amplifier
    Add to wishlist
    Quick View

    Uncategorized

    Roswell R1 550.2 2-Channel Marine Amplifier

    Roswell Marine

    R1 550.2 2-Channel Marine Amplifier Roswell’s R1 550.2 is the ideal amp to run an R1 tower speaker setup. It’s a 2-channel Class-D design that puts out 165 watts RMS per channel at 4Ω and 275 watts RMS per channel at 2Ω. It features calibrated crossover controls, differential RCA inputs for maximum noise rejection, fully [...]

    Read more
    Latest
    • Placeholder Lumitec Surface Mount Aluminum Navigation Light Port - Red
    • Placeholder Lumitec Surface Mount Aluminum Navigation Light Starboard - Green
    • Placeholder VETUS V-CAN 3-Point Y-Hub
    • Placeholder VETUS Airvent Elbow w/Connect - 38mm
    Best Selling
    • Connect-Ease 24V 6 Gauge Heavy Duty Series System Connect-Ease 24V 6 Gauge Heavy Duty Series System
    • Fusion Apollo MS-RA770 Touchscreen AM/FM/BT/SiriusXM Stereo - 4 Zone w/DSP Fusion Apollo MS-RA770 Touchscreen AM/FM/BT/SiriusXM Stereo - 4 Zone w/DSP $699.99
    • Airmar Garmin 12-Pin Mix & Match Cable f/Chirp Transducers Airmar Garmin 12-Pin Mix & Match Cable f/Chirp Transducers $127.50
    • Airmar TM165HW Chirp High Wide 600W Transom Mount Transducer - Requires Adapter Cable Airmar TM165HW Chirp High Wide 600W Transom Mount Transducer - Requires Adapter Cable $487.50
    Top Rated
    • Lumitec Mirage Positionable Down Light - Spectrum RGBW Dimming - White Bezel Lumitec Mirage Positionable Down Light - Spectrum RGBW Dimming - White Bezel $150.99
    • Sufix Superior Smoke Blue Monofilament - 80lb - 2890 yds Sufix Superior Smoke Blue Monofilament - 80lb - 2890 yds $201.99
    • Icom USB Charger w/US Style Plug - 110-240V Icom USB Charger w/US Style Plug - 110-240V $23.00
    Upcoming Events and Sales
    June 2025
    M T W T F S S
     1
    2345678
    9101112131415
    16171819202122
    23242526272829
    30  
    « Mar    
    About us
    Proudly owned and operated by Nix Yacht Services LLC. This website was created to serve as our showroom for all our suppliers and products. Company started as complete yacht management in San Diego, CA. During the years we have been involved in variety of projects. Our goal was aways been bringing quality, transparency and satisfaction.
    Hours & Info
    El Cajon, CA 92020
    +1 (619) 508-3995
    nick@nixwarehouse.com

    Please note that your item may ship from warehouses located in all parts of the country. We make every effort to ship from locations closest to our customers. Items are shipped Monday – Friday excluding holidays. Overnight and two day delivery options are available.
    • Our Stores
    • Contact
    • FAQ
    • Privacy Policy
    • Returns
    Copyright 2025 © Nix Warehouse
    • SHOP
      • Shop by Categories
      • Shop By Brands
      • Sales
    • Used Parts
    • Login
    • Newsletter

    This is a demo store for testing purposes — no orders shall be fulfilled. Dismiss

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.