SKU: 48771980632

JL Audio JD500/1 : Mono 500W/250W Amplifier @ 2Ω/4Ω - Open Box Clearance

Sale price$112.50 Regular price$125.00
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Description

JL Audio JD500/1 : Mono 500W/250W Amplifier @ 2Ω/4Ω - Open Box ClearanceJD Series Monoblock Amplifier, 500 Watt @ 2 Ohm or 250 Watt @ 4 Ohm. Designed to produce a whopping 500 watts into 2 ohms (14. 4V, 1% THD), the JD500 1 amplifier is a great solution for powering subwoofers in a cost conscious system. JL Audio's proprietary NexD switching technology delivers large amounts of real world power output with excellent efficiency and ultra low distortion. The JD500 1s controls are located on the input panel. while the power

JD-Series Monoblock Amplifier, 500-Watt @ 2-Ohm or 250-Watt @ 4-Ohm.

Designed to produce a whopping 500 watts into 2 ohms (14.4V, 1% THD), the JD500/1 amplifier is a great solution for powering subwoofers in a cost-conscious system. JL Audio's proprietary NexD™ switching technology delivers large amounts of real-world power output with excellent efficiency and ultra-low distortion.

The JD500/1’s controls are located on the input panel. while the power and speaker connections can be found along the opposite end of its extruded aluminum chassis. Signal processing features include a 12 dB / octave low-pass filter, with continuously variable frequency selection from 50-500 Hz, and a variable bass boost EQ. Dual-range, differential-balanced inputs are also on-hand, capable of accepting line-level and speaker-level signals. Automatic turn-on capability (via signal sensing or DC-offset sensing) is standard, along with a set of preamp outputs so you can easily pass signals to another amplifier. 

The JD500/1 is also equipped with an onboard LED-clipping indicator ring, surrounding the input sensitivity control. This useful feature lets you set your amplifier’s input sensitivity, quickly and accurately, without special equipment. With the addition of an RBC-1 remote level control (sold separately), you can control the subwoofer level from the driver’s seat.

Output Specifications
  • @ 4 Ω
    250 W RMS x 1
    @ 3 Ω
    350 W RMS x 1
    @ 2 Ω
    500 W RMS x 1
General Specifications
  • Frequency Response
    7 Hz - 500 Hz (+0, -1dB)
    S/N Ratio, referred to highest rated power
    >80 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
    S/N Ratio, referred to 1 W
    >60 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
    Damping Factor @ 4 Ω
    >1000 / 50 Hz
    Damping Factor @ 2 Ω
    >500 / 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
    50 A (AFS, AGU or MaxiFuse™)
Amplifier Settings
  • Filter Mode(s)
    Low-Pass only
    Filter Slope(s)
    12 dB/octave
    Filter Frequency Range
    50 Hz - 500 Hz
    Detented, Calibrated Filter Freq. Potentiometer
    No
    Filter Defeat Function
    No
    Infrasonic Filter
    No
    Bass Boost EQ
    Yes
    Output Polarity Switch
    No
    Remote Subwoofer Level Control
    Optional (RBC-1)
    Remote Bass EQ Boost Control
    No
    Pass-Through Preamp Output
    Buffered
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: 48771980632

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4.5 ★★★★★
Based on 17 reviews
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Product Reviews
J
Verified Purchase
Jute
Draper, US
★★★★★ 5
Foam Mattress NEEDs Foam Pillows
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
10 stars!! Quality foam, structure & price. Best bang for my buck.    HRV, readiness & total sleep score metrics increased drastically this week.  See screenshot :) Support: Molds and cushions every crevice under my neck and above shoulders. So comfy  Size: Adjustable loft but king length is perfect to hug and rest your head.  Love love love. The 1st 2 nights were uncomfortable with pillow as is, first night I was up at 3am half asleep pulling foam out but wasn't enough. The second night at 2am I pulled out more stuffing. I was getting frustrated..  my Oura ring showed both nights I was awake every hour.  Not good.  Before the 3rd night I pulled enough to fill the bag the 2 pillows arrived in. Boom -8hrs sleep and for the first time ii years I achieved 17% Deep sleep.  Huge. Weight: Perfect weight with adjustment. Squishy and molds to b the contour of my neck and shoulders Softness: Like the baby bear.. just right.   Comfort: Very comfortable after removing 30% foam in both pillows. I actually now have enough to make a 3rd pillow, replace old foam, or adjust OGs, Still to early to measure.  If you have a foam mattress that contours your body but not your head you'll end up with neck and/or back pain from head being elevated- not sinking/molding the body into a foam mattress. 
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 1, 2025
C
Verified Purchase
c.laff
Fort Morgan, US
★★★★★ 3
These are not sized correctly - beware
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
Edit: I was going to return these pillows but the seller contacted me and offered a full refund due to the size issue without having to send the pillows back. I am happy with this and happy to keep them on a spare queen size bed as they really are nice pillows. Just the wrong size. pros: they are a nice pillow and the cooling feature is really great, and you can adjust to your liking cons: absolutely wrong size. Ordered King, tag says king, all measurements on listing and tag say 20x36, in reality they are more like 20x30. Definitely Queen pillows being sold as King. I did not see any reviews at first about size issues but after I got these and did a search it does look like others have had the same problem. A shame, would have given them a great review if they were the correct size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
L
Verified Purchase
Leah Ann Dillin
West Palm Beach, US
★★★★★ 5
Cool and comfy
Color: Blue-ice Plus, Size: King(Pack of 1)
Great pillow. Keeps you cool.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
R
Verified Purchase
Rene
Charlottesville, US
★★★★★ 5
Really Good Cooling Pillows for Sleeping
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
These cooling pillows are very soft and provide excellent support for your head and neck. They are adjustable by taking our the stuffing if you need them to be more flat or less firm. The look great and comes in a pack of two which is a great value. During use, I did notice they have great shape retention and it does not take them long to return to their fluffy full shape. I am a hot sleeper and these do keep your head cool - just be aware using a pillow cover does reduce the cool ability but this allows you to adjust for weather like during winters to add a pillow case for extra warmth. Very happy with this purchase and got a second set to replace my old pillows.
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Reviewed in the United States on April 28, 2026
N
Verified Purchase
Nick
Los Angeles, US
★★★★★ 5
Amazing - Stop Scrolling and Buy This Pillow
Size: Queen (Pack of 1), Color: White
I have been an Amazon customer ever since the very beginning, and this is my first review. Not because I haven’t purchased tons of amazing things (and a few bad ones), just never felt the need. However, I researched pillows for longer than I care to admit, and decided on this one. I’ve had it for about six months and absolutely love it. No lie, I genuinely look forward lying my big head on it after a long day. I am a side sleeper, but flip flop all around through the night and it’s great in every position. Pros: Stays nice and cool, which is soothing regardless of the time of year. Has a sort of quilted textured pattern on the zip up cover, gives it a luxury feel, that breaths nicely even when a pillow case is added. The fill is fully adjustable to your preference. I knew it came with extra filling but was worried it would not be enough. Wrong. It was very full and I ended up taking some out until it was perfect. It comes vacuum sealed and suggests it may take some time to fully take shape. However, I found it to be about 90% almost instantly and was sleeping on it a couple hours later. There was no unpleasant scent sometimes associated with memory foam items. The foam itself is very nice, a mix of what appears to be shredded and cotton candy cloud like. Very brilliant idea, as it is somehow supportive, soft and firm all at once. The affordability of this pillow compared to some of the others in this category can’t be overstated. Oh, and the packaging was very thoughtfully and securely done. If you are like me, an over thinker, I would suggest just taking this for a spin. It’s amazing. I’m not a bot, or working for the company. I’m just truly satisfied, love this pillow, and have been sleeping great.
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Reviewed in the United States on April 6, 2026

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