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JL Audio

JL Audio® 4 Channel Class D Full-Range Amplifier

Model #: RD400/4

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Additional parts or labor may be required to complete the installation depending on year make and model

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$359.99

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Built to order, Usually Ships in 2-4 Weeks

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Usually Ships in 2-4 Weeks

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Utilizing our exclusive NexD™ high-speed switching technologies, the ultra-compact RD400/4 amplifier is engineered to deliver loads of audio output power, with incredible efficiency and low distortion. Don’t let its modern styling and small size fool you though, this little powerhouse churns out 100 watts of crystal-clear audio from each of its four channels into 2 ohms (14.4V, 1% THD) and is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a whopping 200W x 2 into 4 ohms.

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Description

4-Channel Class D Full-Range Amplifier, 100 W x 4 @ 2 O / 75 W x 4 @ 4 O – 14.4V

Utilizing our exclusive NexD™ high-speed switching technologies, the ultra-compact RD400/4 amplifier is engineered to deliver loads of audio output power, with incredible efficiency and low distortion. Don’t let its modern styling and small size fool you though, this little powerhouse churns out 100 watts of crystal-clear audio from each of its four channels into 2 ohms (14.4V, 1% THD) and is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a whopping 200W x 2 into 4 ohms.

For your convenience, the RD400/4’s controls can be found on top of the amplifier, beneath a protective cover, with all connections located along one side of its chassis. Studio-grade signal processing features include high or low-pass 12 dB / octave filters (defeatable) for each channel pair, with continuously variable frequency selection from 50-500 Hz, and dual-range, differential-balanced inputs capable of accepting most input voltage levels. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard equipment, along with all-new input type switches for bridging of stereo output channels without needing to use Y-adaptors.

Onboard LED-clipping indicators are also included with your RD400/4. This all-new, innovative feature lets you easily set your amplifier’s input sensitivity settings, quickly and accurately, with no special equipment needed. You’ll also find a set of preamp outputs on-hand, so you can pass signals to another amplifier, almost effortlessly. The RD400/4 features a durable, black powder-coated finish and a top-mounted, dual-color LED light strip that reports the overall status and condition.

@ 4 O: 75 W RMS x 4

@ 2 O: 100 W RMS x 4

Bridged @ 4O: 200 W RMS x 2

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Specifications

General Specs

Color Black
Depth (in.) 6.96
Width (in.) 9.78
Height (in.) 2.13
Preamp Outputs 1
Amplifier Class Class D
Amplifier Output (Watts) 400
Bluetooth Capable No
Amplifier Channels 4
Impedance 2 – 4 Ohms
Manufacturer Warranty 2 Year
RMS Power Handling (Watts) 200
Water Resistant No
Digital Input No
Shallow Mount No
Speaker Level Input No
Number Of Outputs 4
Minimum Impedance Unbridged 2 Ohm
Number Of Inputs 2

Additional information

Brand

Impedance

Manufacturer warranty

Shallow mount

Rms power handling (watts)

Depth (in.)

Width (in.)

Height (in.)

Amplifier class

Amplifier output (watts)

Bluetooth capable

Amplifier channels

Water resistant

Digital input

Speaker level input

Number of outputs

Minimum impedance unbridged

Number of inputs

Color

Peak power

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