SKU: 42506788067

JL Audio JD400/4 : 4ch x 75W/100W Amplifier @ 4Ω/2Ω

Sale price$135.00 Regular price$150.00
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

JL Audio JD400/4 : 4ch x 75W/100W Amplifier @ 4Ω/2ΩJD Series 75 Watt x 4 Channel Class D Full Range Amplifier. Utilizing JL Audio's exclusive NexD high speed switching technologies, the JD400 4 amplifier is engineered to deliver loads of clean power, with excellent efficiency and low distortion. This little guy churns out 100 watts of 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

JD-Series 75-Watt x 4-Channel Class-D Full-Range Amplifier.

Utilizing JL Audio's exclusive NexD™ high-speed switching technologies, the JD400/4 amplifier is engineered to deliver loads of clean power, with excellent efficiency and low distortion. This little guy churns out 100 watts of 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.

The JD400/4’s controls can be found on the input panel of the amplifier, with all speaker and power connections located along the opposite end of the extruded aluminum chassis. 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 line-level or speaker-level signals. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard equipment.

Onboard LED-clipping indicators are also included surrounding each input sensitivity control. This convenient feature lets you set your amplifier’s input sensitivity, quickly and accurately, without special equipment. You will also find a set of buffered, pass-through preamp outputs on-board, so you can pass signals to another amplifier.

Output Specifications
  • @ 4 Ω
    75 W RMS x 4
    @ 2 Ω
    100 W RMS x 4
    Bridged @ 4Ω
    200 W RMS x 2
General Specifications
  • 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™)
Amplifier Settings
  • Filter Mode(s)
    Low-Pass or High-Pass
    Filter Slope(s)
    12 dB/octave
    Filter Frequency Range
    50 Hz - 500 Hz
    Detented, Calibrated Filter Freq. Potentiometers
    No
    Filter Defeat Function
    Yes
    Remote Level Control
    No
    Remote Level Modes
    N/A
    Channel Input Mode Switch
    Yes (2/4 ch.)
    Pass-Through Preamp Output
    Buffered
    Source Channel Selection for PreOuts
    No (always 2 Ch)
General Specifications
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42506788067

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4.4 ★★★★★
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Verified Purchase
Louis Cardoso
Charlottesville, US
★★★★★ 5
Comfortable pillows
Color: White, Size: Standard (Pack of 2)
These pillows are great. Not too soft or to hard. They need to be in the dryer for about 15 minutes to fluff up. Perfect buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
J
Verified Purchase
Jana Caudill
Waukegan, US
★★★★★ 5
Don’t judge by the size
Color: White, Size: Standard (Pack of 2)
I don’t write reviews here typically but I’ve been on the pillow hunt for years with no luck. Mine are always lumpy and misshapen or too soft or too firm. Don’t judge this pillow by how it looks though because I saw it and thought for sure I wasted money. They are small and not fluffy at all. But OMG I laid down on it and it’s the most comfortable pillow I’ve had in years. Memory foam didn’t work for me but this simple little pillow just allowed me some great sleep. Very happy with this purchase. It’s a simple, no frills pillow that’s perfect for this side sleeper that doesn’t like a too soft pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
M
Verified Purchase
Missis Staples
Belleville, US
★★★★★ 5
Superb!!!!
Color: White, Size: Queen (Pack of 4)
If I could give more than 5 stars I would. I purchased these beauties 6 months ago and they are still fluffy and firm. I'm amazed by the price point. I will definitely re-order for the guess bedroom.
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Reviewed in the United States on May 24, 2026
S
Verified Purchase
SimplyGG
Boise, US
★★★★★ 4
Soft and comfortable, NOT firm.
Color: White, Size: Queen (Pack of 2), Color: White, Size: Queen (Pack of 2)
Overall, these are comfortable pillows for the price, especially if you prefer something soft rather than firm. The pillows arrived vacuum sealed, which is pretty standard. Once opened, they fluffed up well after some time and looked full enough to use. Right away, they felt soft and plush, and sleeping on them was comfortable from the first night. In terms of comfort and support, these pillows are definitely on the softer side. They work well for side and back sleeping if you like a pillow that you can sink into a bit. They’re not firm or dense, but they’re still cozy and gentle on the neck and head. After a few days of use, I did notice that the pillows started to look a little lumpy and uneven. The filling tends to shift, so they don’t hold their shape perfectly and need regular fluffing. That said, even when they look a bit misshapen, they’re still soft and comfortable to sleep on. If you’re someone who needs strong neck support or prefers a firm hotel-style pillow, these may feel too soft. However, if comfort and plushness are your priority, they do the job well. For the price, I think they’re a good value. They’re not luxury pillows, but they’re comfortable, decent quality, and perfectly fine for everyday use or a guest bed.
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Reviewed in the United States on January 5, 2026
B
Verified Purchase
Bernell M David
Boise, US
★★★★★ 5
Nice and comfortable as it is light and supportive in all positions
Color: White, Size: Standard (Pack of 2)
Beautiful light pillows that will absolutely provide the comfort and easiness towards a great night of sleep!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026

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