JL Audio RD400/4 4-channel car amplifier — 75 watts RMS x 4
$359.99
4-Channel Class D Full-Range Amplifier, 100 W x 4 @ 2 Ω / 75 W x 4 @ 4 Ω – 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-Channel Class D Full-Range Amplifier, 100 W x 4 @ 2 Ω / 75 W x 4 @ 4 Ω – 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.
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This compact multi-channel powerhouse employs our Single-Cycle Control switching design and R.I.P.S. technology to deliver 150 W x 4 or 300 W x 2. Tight power supply regulation keeps distortion down and maximizes sound quality.
When using the HD750/1 or HD1200/1 to drive a subwoofer system, the HD600/4 is the ideal satellite amplifier, delivering huge dynamics with pristine resolution. From a pure sound quality perspective, we invite you to compare the real-world, in-car performance of this amplifier to any other amplifier on the market, of any type, at any price.
It can also be deployed on its own as a very capable 3-channel system amplifier with 150 W x 2 to the satellites and 300 W x 1 to a subwoofer system.
This amplifier features a brushed aluminum finish with black powder-coated cast alloy heat sinks and bottom panel. A black powder-coated, gasketed cover is also provided to protect the controls.
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Car Amplifiers
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Designed to simplify great audio, every VXi amplifier combines our advanced NexD2 switching amplifier technology with an integrated, full-featured digital signal processor.
Employing our second generation NexD2 amplifier technology, the VX1000/5i efficiently powers a complete audio system. It can drive four main speakers with 75 W x 4 @ 4 ohms while also powering a subwoofer with up to 600W @ 2 ohms. Bridging the main channels converts it into a very powerful, 3-channel system amplifier with up to 200W x 2 @ 4 ohms on the main channels and 600W @ 2 ohms on the subwoofer channel.
The NexD2 full-range technology in the main channels of this amplifier is DSP-controlled and features a reduced loop area design utilizing DirectFET outputs for outstanding fidelity, very low noise and exceptional efficiency. The subwoofer channel features an optimized low-frequency variant of the NexD2 technology. The amplifier chassis is ultra-compact, with all connections on one side, to greatly simplify installation into tight spaces.
Instead of traditional control knobs and switches, all amplifier adjustments and DSP functionality are configured via a compatible external device (PC, Tablet or Smartphone), with the appropriate JL Audio TüN Software application installed.
Amplifier includes: Power Connector (for 2 AWG wire), Analog Input/Pre-Out Harness, Speaker Output Harness, Subwoofer Output Connector, 6 ft A/B USB Cable
Features:
Unprecedented, Onboard DSP Tuning Power!
- Powerful DSP permits optimizing each channel’s timing, frequency response and output levels, for exceptional sound quality.
- TüN Software delivers fast and easy setup, at your fingertips. Make all adjustments with a clear interface. Free TüN software is available for computers and most handheld devices.
2nd-Gen NexD2 Switching Amplifier Technology
- Advanced, high-speed switching technology delivers reference-grade power and efficiency.
- DSP-synchronized power supply and output channels produce world-class sound quality with very low noise and distortion.
Ultra-Versatile Analog and Digital Inputs/Outputs
- Differential-Balanced Analog Inputs accept speaker level signals up to 16V RMS, including those from factory systems. Delivers outstanding noise rejection to prevent alternator whine and other noises.
- Optical Digital (Toslink) Inputs permit direct connection of S/PDIF digital sources, bypassing A/D converter. Accepts up to 24 bit/192 kHz input.
- Analog and Digital Pre-Outs (pass-through or fully configurable): RCA Pre-Outs (4V RMS Max) and Optical (Toslink) Output at 24 bit/96 kHz
- Automatic turn-on options via signal-sensing or DC-offset sensing
JLid System Command and Control with Networking Capabilities
- Proprietary JL Audio protocol provides control interface and all communication for VXi amplifiers and optional JLid accessories, including:
DRC-100 / DRC-205 (Digital Remote Controllers): Offers convenient DSP preset selection and level adjustments from the driver’s seat.
VXi-BTC Bluetooth Communicator: Adds wireless connectivity for amplifier configuration from a compatible iOS or Android® device.VXi-HUB Optical Network Hub: Provides network connectivity for up to six VXi amplifiers, allowing full-system DRC control and preset selection. Up to two VXi-HUBs can be daisy-chained to control up to ten VXi amplifiers.SKU: JL Audio-VX1000/5i -
Car Amplifiers
JL Audio VX700/5i 5-channel car amplifier with digital signal processing — 75 watts RMS x 4 at 4 ohms + 300 watts RMS x 1 at 2 ohms
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0 out of 5(0)5-Channel Class D System Amplifier with Integrated DSP, 75 W x 4 @ 4 Ω + 300 W x 1 @ 2 Ω – 14.4V
Designed to simplify great audio, every VXi amplifier combines our advanced NexD2 switching amplifier technology with an integrated, full-featured digital signal processor.
Employing our second generation NexD2 amplifier technology, the VX700/5i efficiently powers a complete audio system. It can drive four main speakers with 75 W x 4 @ 4 ohms while also powering a subwoofer with up to 300W @ 2 ohms. Bridging the main channels converts it into a very powerful, 3-channel system amplifier with up to 200W x 2 @ 4 ohms on the main channels and 300W @ 2 ohms on the subwoofer channel.
The NexD2 full-range technology in the main channels of this amplifier is DSP-controlled and features a reduced loop area design utilizing DirectFET outputs for outstanding fidelity, very low noise and exceptional efficiency. The subwoofer channel features an optimized low-frequency variant of the NexD2 technology. The amplifier chassis is ultra-compact, with all connections on one side, to greatly simplify installation into tight spaces.
Instead of traditional control knobs and switches, all amplifier adjustments and DSP functionality are configured via a compatible external device (PC, Tablet or Smartphone), with the appropriate JL Audio TüN Software application installed.
Amplifier includes: Power Connector (for 4 AWG wire), Analog Input/Pre-Out Harness, Speaker Output Harness, Subwoofer Output Harness, 6 ft A/B USB Cable
Features:
Unprecedented, Onboard DSP Tuning Power!
- Powerful DSP permits optimizing each channel’s timing, frequency response and output levels, for exceptional sound quality.
- TüN Software delivers fast and easy setup, at your fingertips. Make all adjustments with a clear interface. Free TüN software is available for computers and most handheld devices.
2nd-Gen NexD2 Switching Amplifier Technology
- Advanced, high-speed switching technology delivers reference-grade power and efficiency.
- DSP-synchronized power supply and output channels produce world-class sound quality with very low noise and distortion.
Ultra-Versatile Analog and Digital Inputs/Outputs
- Differential-Balanced Analog Inputs accept speaker level signals up to 16V RMS, including those from factory systems. Delivers outstanding noise rejection to prevent alternator whine and other noises.
- Optical Digital (Toslink) Inputs permit direct connection of S/PDIF digital sources, bypassing A/D converter. Accepts up to 24 bit/192 kHz input.
- Analog and Digital Pre-Outs (pass-through or fully configurable): RCA Pre-Outs (4V RMS Max) and Optical (Toslink) Output at 24 bit/96 kHz
- Automatic turn-on options via signal-sensing or DC-offset sensing
JLid System Command and Control with Networking Capabilities
- Proprietary JL Audio protocol provides control interface and all communication for VXi amplifiers and optional JLid accessories, including:
DRC-100 / DRC-205 (Digital Remote Controllers): Offers convenient DSP preset selection and level adjustments from the driver’s seat.
VXi-BTC Bluetooth Communicator: Adds wireless connectivity for amplifier configuration from a compatible iOS or Android device.VXi-HUB Optical Network Hub: Provides network connectivity for up to six VXi amplifiers, allowing full-system DRC control and preset selection. Up to two VXi-HUBs can be daisy-chained to control up to ten VXi amplifiers.SKU: JL Audio-VX700/5i -
Car Amplifiers
JL AUDIO – XD1000/5V2 5 Ch. Class D System Amplifier, 1000 W
0 out of 5(0)5-Channel Class D System Amplifier, 100 W x 4 @ 2 ohm + 600 W x 1 @ 2 ohm – 14.4V
The XD1000/5v2 delivers up to 1000 W of clean power and is ideal for an audiophile-grade, subwoofer + four satellite system. With this potent amplifier, you can drive two pairs of quality component speaker systems with plenty of clean power (75 W x 4 @ 4 ?), while also delivering a stout 600 W of power to a subwoofer system. The breakthrough that makes this much power possible in such a small chassis is our NexD switching amplifier design.
The XD1000/5v2 includes a 12 dB / octave high-pass filter for one main channel pair, a 12 dB octave high-pass or bandpass filter for the other main channel pair, plus a variable slope low-pass filter for its subwoofer channel. All three filters offer continuously variable cutoff frequency selection from 50-500 Hz. This amplifier’s filters can also be configured as a true 3-way crossover, with a low-pass filter for the subwoofer channel, a bandpass filter on Ch. 3 & 4, and a high-pass filter on Ch. 1 & 2. An “x10” multiplier switch on the Ch. 1 & 2 high-pass filter allows its cutoff frequency to be adjusted from 50-500 Hz or 500-5000 Hz.
The XD1000/5v2 also features the v2 Spec feature set, which consists of automatic turn-on capability (via signal sensing or DC-offset sensing), and a dual-range differential-balanced input section able to handle a wide range of input voltage levels. With the addition of an HD-RLC remote level control (sold separately), the amplifier’s level can be directly controlled from the driver’s seat.
This amplifier features a black powder-coat finish and a gasketed, brushed aluminum cover for the controls.
SKU: JL AUDIO - XD1000/5V2






