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JL Audio RD400/4 - 4 Channel Class D Amplifier

£349.99

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Utilizing JL Audio's exclusive NexD™ high-speed switching technologies, the ultra-compact JL Audio RD400/4 - 4 Channel Class D 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.

Technical Specifications

Rated Continuous (RMS) Power @ 14.4 V

@ 4 Ω - 75 W RMS x 1

@ 2 Ω - 100 W RMS x 1

Bridged @ 4 Ω - 200 W RMS x 1

Rated Continuous (RMS) Power @ 12.5 V

@ 4 Ω - 60 W RMS x 1

@ 2 Ω - 90 W RMS x 1

Bridged @ 4 Ω - 180 W RMS x 1

Frequency Response 12 Hz - 22 kHz (+0, -1dB)
S/N Ratio, referred to highest rated power >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 Ω >150 / 50 Hz
Damping Factor @ 2 Ω >75 / 50 Hz
THD+N @ Rated Power <1% @ 2 Ω per Ch.
Input Voltage Range @ RCA Inputs Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High)
Min.Copper Power / Ground Wire Gauge 4 AWG wire
Fuse Rating 40 A (AFS, AGU or MaxiFuse™)

Dimensions

  • Height (H): 2.13 in / 54 mm
  • Width (W): 9.78 in / 248 mm
  • Depth (D): 6.96 in / 177 mm

Further Information

JL Audio RD400/4 - 4 Channel Class D Amplifier - User Manual

The products we use and sell are of the highest quality and we trust them wholeheartedly, but every now and again a product has a fault that is covered under the manufacturers warranty.

In the event of such an occurance please contact us via email at info@studioincar.co.uk to proceed with the warranty process.

Below is a list of all the Manufacturers warranty timeframes with any special instructions for extended warranties:

AudioControl

  • 5 Years with Installation by an Authorised Installer (Studio Incar is an Authorised Installer)
  • 1 Year if you are doing your own Installation
  • 2 Years if you register the product with the UK supplier

AudioLab

  • 2 Years standard Manufacturers warranty

Audison

  • 1 Year standard Manufacturers warranty
  • 2 Years if you register the product with the UK supplier

Blackvue

  • 6 Months standard Manufacturers warranty

Blaupunkt

  • 1 Year standard Manufacturers warranty

Chord Company

  • Lifetime Warranty

Dynaudio

  • 2 Years on Car Audio Products - No Extendable Warranty
  • 2 Years standard Warranty on Home Audio Products
  • up to 8 Years Extendable Warranty on Home Audio Products when you register at Dynaudio

Focal

  • 1 Year Standard Manufacturers Warranty
  • 2 Years Extended Warranty when registered with Focal

Hegel

  • 2 Years Standard Manufacturers Warranty

Hertz

  • 1 Year standard Manufacturers warranty
  • 2 Years if you register the product with the UK supplier

HiFi Rose

  • 2 Years Standard Manufacturers Warranty

JL Audio

  • 1 Year for Speakers and Subwoofers
  • 2 Years for Amplifiers and Processors

Peachtree Audio

  • 2 Years Standard Manufacturers Warranty
  • 3 Years Extended Warranty if Registered with Peachtree

Pro-Ject

  • 2 Years Standard Manufacturers Warranty
  • 3 Years Extended Warranty if Registered with Pro-Ject

Q-Acoustics

  • 4 Years for Passive Loudspeakers
  • 1 Year for Active Loudspeakers / Subwoofers
  • 5 Years for Passive Loudspeakers if Registers with Q Acoustics
  • 2 Years for Active Loudspeakers / Subwoofers if Registered with Q Acoustics

SolidSteel

  • 1 Year Standard Manufacturer Warranty

Sony

  • 1 Year Standard Manufacturer Warranty

Wharfedale

  • 2 Years Standard Manufacturers Warranty
Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday
January,February,March,April,May,June,July,August,September,October,November,December
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