Rockford Fosgate Prime R2-300X4 4-channel amplifier

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Rockford Fosgate Prime R2-300X4 4-channel amplifier

300W 4-channel, Class-D, CLEAN setting, auto-sense bypass.
Balanced inputs, variable infrasonic filter, RCA pass-through.
Fully adjustable switches, short circuit and overcurrent protection.
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€299,00

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Prime R2-300X4 by Rockford Fosgate

The Prime R2 series, which includes the Rockford Fosgate Prime R2-300X4 4-channel amplifier, was designed for car audio enthusiasts looking for a reliable amplifier that delivers the power and performance Rockford Fosgate is known for at an affordable price. Rockford Fosgate amplifiers are known worldwide for being "underrated," effortlessly exceeding all specifications and - most importantly - producing more power than their rated values. These 3rd generation amplifiers of the Prime Series have been refined with the latest Rockford Fosgate technology for easy setup and configuration, making them perfect for use with factory audio or custom aftermarket systems.

features

Symmetrical differential inputs with RCA pass-through outputs
High-level input suitable
Auto-Sense-Bypass Switch for Vehicles with RAP (Retained Accessory Power)
2/4 Kanal Input Selector Switch
Features of C.L.E.A.N. Attitude
Variable input gain on the front and back side
Top-mounted control panel
Protection against short circuit and overcurrent
CEA-2006 compliant & CE compliant
Aluminum cast heat sink
Full-range Class-D
Fully adjustable 12 dB/octave high-pass and low-pass Butterworth filters

Specifications

4-channel amplifier
RMS Power:

50 Watt x 4 @ 4Ω
75 Watt x 4 @ 2Ω
150 Watt x 2 @ 4Ω Bridging/Mono

Dynamic Power

70 Watt x 4 @ 4Ω
115 Watts x 4 @ 2Ω
230 Watt x 2 @ 4Ω Bridging/Mono

Bridgable: Yes
Frequency response: 20 Hz - 20 kHz
Input sensitivity: Low-Level: 150 mV - 4 V
High level: 450 mV - 12 V
Circuit topology class: Class-D
Signal input: Front Low-Level: 4 RCA
Front Side High-Level: 4-Pin Molex
Rear Low Level: 4 RCA
Rear High Level: 4-Pin Molex
Input switch: 2/4 input (works for RCA/Hi-Level inputs)
Signal output: Low-Level: 2 RCA (Pass-Thru active with RCA or Hi-Level input)
Front High Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth
Front Low Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth
Backwards high-pass: 50 Hz - 250 Hz @ 12dB/octave Butterworth
Reverse low-pass: 50 Hz - 250 Hz @ 12dB/octave Butterworth
Remote controls: No
Cable diameter: 20mm²
Speaker cable diameter: 8mm²
Cooling: Convection
Operating voltage: 9 - 16 VDC
Recommended fuse: 60 A
Max. current consumption (13.8 V sine): 39 A
Dimensions (H x W x D): 4.9 cm x 17.3 cm x 25.5 cm

Frequent questions about Prime R2-300X4

Wie ist die Leistung des Prime R2-300X4 Verstärkers?

The Rockford Fosgate Prime R2-300X4 is a 4-channel amplifier that delivers an RMS power of 50 watts per channel at a load of 4 ohms. At 2 ohms, the power increases to 75 watts per channel. When you operate the amplifier in bridged mode, the power rises to 150 watts at 4 ohms. The dynamic power is 70 watts per channel at 4 ohms and 115 watts at 2 ohms, while in bridged mode, 230 watts can be achieved. These values show that the Prime R2-300X4 is significantly more powerful than specified.

Welche Eingangsmöglichkeiten bietet der Prime R2-300X4?

The Prime R2-300X4 amplifier offers various signal input options, including front low-level via 4 RCA connectors and front high-level via a 4-pin Molex connector. For the rear, low-level RCA and 4-pin Molex high-level inputs are also available. A 2/4 input switch allows for selection between RCA and high-level input types, providing flexibility when connecting to different audio systems. This variety of signal inputs enables optimal integration into various vehicle audio systems.

Welche Steuerungsmöglichkeiten hat der Verstärker?

The Prime R2-300X4 is equipped with a top-mounted control panel that allows for easy access. Control features include an auto-sense bypass switch specifically designed for vehicles with RAP (Retained Accessory Power), as well as a 2/4 channel input selection switch. Additionally, there are fully adjustable 12 dB/octave high-pass and low-pass Butterworth filters for the front and rear. The variable input gain allows for precision in tuning the distortion rate. These control functions provide further flexibility for custom audio adjustments.

Welche Schutzmaßnahmen sind im Prime R2-300X4 integriert?

The Rockford Fosgate Prime R2-300X4 offers protection against short circuits and overcurrent, ensuring long-term reliability. The amplifier is both CEA-2006 compliant and CE compliant, providing additional safety assurance. An integrated auto-sense bypass switch prevents malfunctions in vehicles with RAP. The aluminum cast heat sink structure ensures effective dissipation of generated heat, increasing operational safety. These safety mechanisms and standards significantly reduce the risk of operational disruptions.

Wie konfiguriere ich die Filtereinstellungen des Verstärkers?

The Prime R2-300X4 features fully adjustable 12 dB/octave high-pass and low-pass Butterworth filters. The frequency range of the high-pass and low-pass filters is between 50 Hz and 250 Hz, both on the front and back. These filters are used to adjust the frequency transitions according to the preferences or requirements of the speaker systems. A control panel on the top of the amplifier allows easy access to these settings, enabling you to adjust or optimize the sound profile accordingly.

Wie ist der Prime R2-300X4 Verstärker aufgebaut, um eine effiziente Kühlung zu gewährleisten?

The Rockford Fosgate Prime R2-300X4 is equipped with an aluminum die-cast heat sink that features powerful convective cooling. This design efficiently dissipates heat from the internal components and prevents overheating even under high power conditions. The aluminum structure ensures optimal heat distribution, which supports the longevity of the internal circuits. The passive cooling of the aluminum housing ensures that no additional airflow is required.

Welche Abmessungen hat der Prime R2-300X4, und wie beeinflussen diese die Einbauposition im Fahrzeug?

The amplifier measures 4.9 cm in height, 17.3 cm in width, and 25.5 cm in depth. These compact dimensions make installation in many vehicles easier without taking up too much space. The low height also allows the amplifier to be installed under seats or in narrower spaces. However, the installation should still be carefully planned, taking into account ventilation, access to the connections, and proximity to the power supply to achieve maximum performance and efficiency.

Wie wird die Stromversorgung des Prime R2-300X4 gehandhabt?

The Prime R2-300X4 amplifier requires a supply voltage of 9 to 16 VDC and draws a maximum current of 39 A at 13.8 V and full load. The recommended fuse rating is 60 A. An adequate cross-section of 20mm² for the power cable and 8mm² for the speaker cables is essential to minimize voltage losses and ensure maximum current supply. This sizing ensures that the amplifier can fully unleash its performance while being operated reliably.

Welche Vorteile bietet der Class-D Schaltkreis im Prime R2-300X4?

The reason for using a Class-D circuit in the Prime R2-300X4 is its efficiency. Class-D amplifiers convert input power into output power much more effectively than traditional amplifier classes. This results in lower heat generation, which saves energy and reduces the need for extensive cooling. The robust performance of the Prime R2-300X4 while maintaining a compact design makes it an ideal choice for high-performance car audio applications.

Ist der Prime R2-300X4 mit gängigen Fahrzeugmodellen kompatibel?

Since the Prime R2-300X4 does not require specific vehicle brands, it can be made compatible with a variety of vehicle models. The important aspects here are the 4-channel wiring options and the flexible input signal processing via RCA or high-level inputs. Although no specific vehicle models are mentioned, the variable input sensitivity for low-level 150 mV to 4 V and for high-level 450 mV to 12 V facilitates broad compatibility with various audio systems in vehicles from different manufacturers.

Herstellerinformation/verantwortliche Person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

Let customers speak for us

from 9059 reviews

Jean François Tedesco

Alpine tube 12 bazooka , Un sacré caisson de basses ,

Un sacré caisson de basses , j'ai eu un 46 cm killer 454 de l'époque année 90 , qui tapait vraiment bien , mais ce tube est bien plus fort et plus ample, toutes les basses passent sans problème, avec une télécommande à réglage multiples taramps eq bass , et un ampli Machete de masori , le couple est parfait, personnellement j'en ai deux tubes et ça donne énormément, avec l'ampli 2 x 530 en 4 ohms . Parfois le plus simple est bien meilleur et plus durable .

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11/29/2025

Bartosz Erber

X-10 v3 d2

Hallo. Sehr freundlicher Kundenservice und schnelle Auftragsabwicklung. Der Lautsprecher ist brandneu und unbenutzt. Ich habe ihn vor einiger Zeit gekauft, aber erst kürzlich das Gehäuse fertiggestellt. Die Parameter entsprechen den Herstellerangaben: 42,5 Liter Nettovolumen, abgestimmt auf 32 Hz und 21 mm starkes Sperrholz. Ich hatte noch nie einen 10-Zoll-Lautsprecher und wusste nicht, was mich erwartet, aber das Ergebnis hat meine kühnsten Erwartungen übertroffen. Der Bass aus einem so kleinen Lautsprecher in einem so kleinen Gehäuse ist einfach unglaublich. Um den X-10 zu kaufen, habe ich meinen DD 712f in einem 70-Liter-Gehäuse verkauft, und der war ein Volltreffer. Der Sundown ist in jeder Hinsicht besser. Ich kann diesen Lautsprecher und den Händler, bei dem ich ihn gekauft habe, wärmstens empfehlen. Beste Grüße.

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11/18/2025

tatazz

Est arrivé à la maison très rapidement

Est arrivé à la maison très rapidement 👌🏽

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Geht echt gut und leicht zum einstellen

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Georges, Alexander, Vainohoarii NAGLE

Très satisfaisant.

Bonjour, je reçu le colis bien emballé.
Je recommande vivement, la livraison est gratuite et rapide, je recommanderai sûrement encore chez Masori.

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Bought again

Bought again. Great price, fast delivery, nice !

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Im Vergleich zum originalen Canton Subwoofer spielt dieser deutlich stärker, präziser und mit mehr Druck.
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