
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
For Your Every Summer RSVP, with Code: SUMMER15
Description
Rockford-Fosgate Prime R300X4Features: Prime Series Full Range Class AB 4 Channel Car Amplifier RMS Power Rating: 4 ohms: 50 watts x 4 chan. 2 ohms: 75 watts x 4 chan. Bridged, 4 ohms: 150 watts x 2 chan. CEA 2006 Compliant Amplifier Pulse Width Modulated MOSFET power supply LED power (green) and protect (red) indicators Soft start turn on 4, 3 or 2 channel operation Speaker level (high level) inputs with included molex plugs 3 way protection circuitry (thermal, overload, and
Features:
- Prime Series Full Range Class AB 4-Channel Car Amplifier
- RMS Power Rating:
- 4 ohms: 50 watts x 4 chan.
- 2 ohms: 75 watts x 4 chan.
- Bridged, 4 ohms: 150 watts x 2 chan.
- CEA-2006 Compliant Amplifier
- Pulse Width Modulated MOSFET power supply
- LED power (green) and protect (red) indicators
- Soft start turn-on
- 4, 3 or 2 channel operation
- Speaker-level (high-level) inputs with included molex plugs
- 3-way protection circuitry (thermal, overload, and speaker short protection)
- Heavy duty aluminum alloy heat-sink for extreme heat dissipation
- Input sensitivity:
- Low level: 150mV - 4V
- High level: 450mV - 12V
- Frequency Response: 20 - 20,000 Hz
- Total Harmonic Distortion (THD): <1%
- Signal to Noise Ration: >100 dB
- Selectable crossover modes: LP / AP / HP
- Variable crossover filter: 50 - 250 Hz, 12 dB/octave
- Selectable Bass Boost, Punch EQ: 0, +6db, +12 dB bass boost at 45 Hz
- 8 - 16 gauge speaker terminals
- 50 Amp In-line fuse is highly recommended, not included
- Dimensions: 13.2"W x 6.8"D x 2"H
Specifications:
Power Specifications - Full Range Channels:
- RMS Power @ 4 ohms: 50 watts x 4 channels
- RMS Power @ 2 ohms: 75 watts x 4 channels
- Bridged RMS Power: 150 watts x 2 channels
Amplifier Specifications:
- Amplifier Series: Prime (Rockford Fosgate)
- Amplifier Class: AB
- Number of Channels: 4
- Total Peak Power Output: 600 watts
- Total RMS Power Output: 300 watts
- Maximum Input Gauge Size: 4 AWG
- Minimum Impedance Unbridged: 2 ohms
- Minimum Impedance Bridged: 4 ohms
- THD at Rated RMS Power: 1.0%
- Speaker Level Inputs: Yes - with included adapter
- Preamp Outputs: 1 pair
- Built-in Crossover: Low-Pass (LP), High-Pass (HP), Full (AP)
- High-Pass Crossover Frequency: 50 - 250 Hz
- Low-Pass Crossover Frequency: 50 - 250 Hz
- Signal-to-Noise Ratio: 100 dB
- Channel Separation: 50 dB
- Bass Boost: Selectable 0/+6dB/+12dB
- Bass/Gain Remote: No
- Fan Cooled: No
- Fuse Rating: 50A Fuse Recommended, Not Included
- Strappable: No
- CEA-2006 Compliant: Yes
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 2026 reviews
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Product Reviews
★★★★★ 5
easy install, cleans well
Size: 26" 20" 12"
took less than 10 minutes for front and back replacement: a lot of that was spent on figuring out how to get rear wiper removed. perfect fit. by geometry, installing passenger front wiper was a little more tricky simply because of the reach issue [and I have long arms]. but that's not a problem with the wipers.
windows were covered with pollen. using the spray and wipe option, they cleared up beautifully in one pass.
note: OEM has a heavier bow with a joint in it to adapt to window curve. this wiper has a lighter, more flexible bow with no joints, but hugged the window perfectly. it may help that it's almost 90 F outside.
waiting to see how it does in colder weather and with snow, and to see durability.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Good product
Size: 26" 18" 11"
Good value, easy to install, work well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 4
Great wiper
Size: 24" 20" 11"
Very effective. They are quiet and did the job. Easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Would buy again
Size: 26"/14"/12"
These wipers are fantastic. They were easy to install and conformed to the windshield perfectly. Did a great job wiping the rain away. Best thing of all is they lock into place on the wiper arm.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Great value
Size: 26"/17"/14"
Used on a 2018 outback. These are an amazing value. All 3 fit perfectly and work great. They work smooth and silently
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
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