JL Audio JD400/4 4-Channel Class D Full-Range Amplifier
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 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.
Rated Continuous (RMS) Power @ 14.4 V
|@ 4 Ω||75 W RMS x 4|
|@ 2 Ω||100 W RMS x 4|
|Bridged @ 4Ω||200 W RMS x 2|
Rated Continuous (RMS) Power @ 12.5 V
|@ 4 Ω||60 W RMS x 4|
|@ 2 Ω||90 W RMS x 4|
|Bridged @ 4Ω||180 W RMS x 2|
|Frequency Response||12 Hz - 20 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™)|
|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)|
|Height (H)||2.10 in / 53 mm|
|Width (W)||9.50 in / 242 mm|
|Depth (D)||7.50 in / 180 mm|
|Net Weight||4.80 lb / 2.18 kg|
U.S. 48 Only
For all items eligible for shipping:
FREE: 1-5 Business Days UPS
Expedited Shipping Options: Calculated At Checkout
Large Item Shipping Costs: Calculated At Checkout
Our policy lasts 30 days. If 30 days or less have gone by since your purchase, we are happy to issue a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable):
Any item not in its original condition, is damaged or missing parts for reasons not due to our error
Any item that is returned more than 30 days after delivery
Refunds (if applicable):
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at firstname.lastname@example.org.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at email@example.com and send your item to: 19010 Statesville Rd Cornelius North Carolina US 28031.
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.
To return your product, you should mail your product to: 19010 Statesville Rd Cornelius North Carolina US 28031
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
To reach customer service please email firstname.lastname@example.org
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.