✨ Get 20% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Ready To Ship Roswell R1 650.4 4-channel Marine Amplifier [c920-1834sd] Best Choice [QEym4AbH]

$52.99 $169.99 -69%

R1 650.4 4-Channel Marine AmplifierThe 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 an

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

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

Specifications:

  • Bridgeable: Yes
  • Channels - Available: 4
  • Box Dimensions: 4"H x 11"W x 14"L WT: 6.5 lbs
  • UPC: 006066234731

What Our Customers Say

January 5, 2026

Absolutely no complaints!

It's a very well-rounded package with everything you need.

- Complete_Package.

January 5, 2026

Absolutely no complaints!

I appreciate the minimalist approach to the design.

- Minimal_Max.

January 5, 2026

Absolutely no complaints!

It's a very well-made and reliable piece of kit.

- Lia N..

Write a Review

You Might Also Like

Discover more great products from our collection.

Connery Stool

Connery Stool

(445)
$50.99 $163.99 -69%
LampGard®

LampGard®

(591)
$19.99 $63.99 -69%
2A2013G01 PANEL

2A2013G01 PANEL

(198)
$19.99 $63.99 -69%
GR597

GR597

(340)
$67.99 $217.99 -69%
Wave Guest Towel

Wave Guest Towel

(349)
$20.99 $67.99 -69%
Kori Camel Multi

Kori Camel Multi

(793)
$33.99 $108.99 -69%
Green Onyx Earrings

Green Onyx Earrings

(601)
$25.99 $83.99 -69%
2024 AVTRON AVTRON 2705

2024 AVTRON AVTRON 2705

(71)
$133.99 $428.99 -69%

Copyright 2026 © technovaprecision.com

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY