








JL Audio RD400/4
RD Series 400 Watt 4-Channel Car Amplifier
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4 cap. Amplificador de rango completo clase D, 400 W
RD400/4
Amplificador de rango completo Clase D de 4 canales, 100 W x 4 a 2 Ω / 75 W x 4 a 4 Ω - 14,4 V
Utilizando nuestras exclusivas tecnologías de conmutación de alta velocidad NexD™, el amplificador ultracompacto RD400/4 está diseñado para ofrecer una gran potencia de salida de audio, con una eficiencia increíble y baja distorsión. No se deje engañar por su estilo moderno y su pequeño tamaño: esta pequeña potencia produce 100 vatios de audio nítido desde cada uno de sus cuatro canales a 2 ohmios (14,4 V, 1 % THD) y es totalmente puenteable, por lo que Se puede utilizar como amplificador de 3 canales o como amplificador de 2 canales que produce la friolera de 200 W x 2 en 4 ohmios.
Para su comodidad, los controles del RD400/4 se pueden encontrar en la parte superior del amplificador, debajo de una cubierta protectora, con todas las conexiones ubicadas a lo largo de un lado de su chasis. Las características de procesamiento de señal con calidad de estudio incluyen filtros de paso alto o bajo de 12 dB/octava (anulables) para cada par de canales, con selección de frecuencia continuamente variable de 50 a 500 Hz y entradas balanceadas diferenciales de doble rango capaces de aceptar la mayoría de las entradas. niveles de voltaje. La capacidad de encendido automático (mediante detección de señal o detección de compensación de CC) es equipo estándar, junto con interruptores de tipo de entrada completamente nuevos para puentear canales de salida estéreo sin necesidad de usar adaptadores en Y.
Los indicadores de recorte LED integrados también se incluyen con su RD400/4. Esta característica completamente nueva e innovadora le permite configurar fácilmente la configuración de sensibilidad de entrada de su amplificador, de manera rápida y precisa, sin necesidad de equipo especial. También encontrará a mano un conjunto de salidas de preamplificador, para que pueda pasar señales a otro amplificador, casi sin esfuerzo. El RD400/4 cuenta con un acabado duradero con recubrimiento en polvo negro y una tira de luz LED de dos colores montada en la parte superior que informa el estado y la condición general.
Especificaciones generales
| Potencia nominal continua (RMS) a 14,4 V | |
|---|---|
| @ 4 Ω | 75W RMS x 4 |
| @ 2 Ω | 100 W RMS x 4 |
| Puenteado @ 4Ω | 200 W RMS x 2 |
| Potencia nominal continua (RMS) a 12,5 V | |
| @ 4 Ω | 60W RMS x 4 |
| @ 2 Ω | 90W RMS x 4 |
| Puenteado @ 4Ω | 180 W RMS x 2 |
| Especificaciones de generación | |
| Respuesta frecuente | 12Hz - 22kHz (+0, -1dB) |
| Relación S/N, referida a la potencia nominal más alta | >104 dB por debajo de la potencia nominal (ponderación A, ancho de banda de ruido de 20 Hz - 20 kHz) |
| Relación S/N, referida a 1 W | >84 dB (ponderación A, ancho de banda de ruido de 20 Hz - 20 kHz) |
| Factor de amortiguación @ 4 Ω | >150 / 50Hz |
| Factor de amortiguación @ 2 Ω | >75 / 50Hz |
| THD+N a potencia nominal | <1% a 2 Ω por canal. |
| Rango de voltaje de entrada en entradas RCA | Conmutable de 200 mV - 2 V RMS (Bajo) a 800 mV - 8 V RMS (Alto) |
| Calibre mínimo del cable de alimentación/tierra de cobre | cable de 4 AWG |
| Evaluacion del fusible | 40 A (AFS, AGU o MaxiFuse™) |
| Procesamiento de la señal | |
| Modo(s) de filtro | Paso bajo o paso alto |
| Filtrar pendientes | 12 dB/octava |
| Rango de frecuencia del filtro | 50Hz - 500Hz |
| Frec. de filtro calibrada y retenida. Potenciómetros | No |
| Función de desactivación del filtro | Sí |
| Control de nivel remoto | No |
| Modos de nivel remoto | N / A |
| Interruptor de modo de entrada de canal | Sí (2/4 cap.) |
| Salida de preamplificador de paso | almacenado en búfer |
| Selección del canal fuente para presalidas | No |
| Especificaciones físicas |
|
| Altura (Al) | 2,13 pulgadas/54 mm |
| Ancho (ancho) | 9,78 pulgadas/248 mm |
| Profundidad (D) | 6,96 pulgadas/177 mm |
| Peso neto | |

JL Audio RD400/4 RD Series 4-Channel 100W RMS x 4 at 2 Ohms, Class-D Full-Range Car Amplifier
We are a JL Audio authorized dealer. All products are fully warrantied and include free shipping within the lower 48 states. Elevate your car audio experience with the JL Audio RD400/4 4-Channel Amplifier. Designed to deliver exceptional sound clarity and robust performance, this amplifier ensures your music comes to life with crystal-clear audio and deep bass. Whether you're a daily commuter or an audiophile, the JL Audio RD400/4 delivers immersive sound quality in every environment.
Key Features
- 4-Channel Amplifier: Ample power for both your speakers and subwoofers, ensuring superior sound reproduction.
- Class D Amplifier Technology: Efficient power usage, providing high performance with minimal heat generation.
- Power Output: 75W RMS x 4 channels at 4 ohms, 100W RMS x 4 channels at 2 ohms, and 200W RMS x 2 bridged channels at 4 ohms for powerful audio.
- Differential-Balanced Inputs: Reduces noise and distortion for clearer, more detailed sound.
- Advanced Rollback Protection: Protects the amplifier from overheating under extreme conditions.
What's Inside?
- JL Audio RD400/4 Amplifier
- Wiring Harness
- Mounting Hardware
- User Manual
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.
