JL Audio M400/4: 4 Ch. Class D Full-Range Marine Amplifier, 400 W

$519.99
Availability: Out Of Stock

4-Channel Class D Marine Full-Range Amplifier, 100 W x 4 @ 2 Ω / 75 W x 4 @ 4 Ω - 14.4V

This tiny amplifier packs a serious full-range punch, delivering a staggering 100 watts to each of its four channels into 2 Ω (14.4V, 1% THD). The breakthrough that makes this much power possible in such a small chassis is our NexD™ ultra-high-speed switching design, which allows for full bandwidth Class D operation with extremely low distortion and outstanding efficiency.

Use the M400/4 in combination with our M600/1 monoblock to build a 1000 W amplification system to power four satellites and a subwoofer... and fit the whole thing under a seat. Or, use the M400/4 by itself to power two satellites, plus a subwoofer. With M-Series amplifier, the possibilities are endless.

The M400/4 includes a 12 dB / octave filter for each channel bank, which can be configured as a low-pass or high-pass filter and offers continuously variable cutoff frequency selection from 50-500 Hz. With the addition of an HD-RLC remote level control (sold separately), the amplifier's Ch. 1 & 2 level or overall level can be directly controlled from a remote location.

This marine amplifier features white and gray powder-coat finishes, a gasket cover for the controls and stainless steel hardware for durability in the marine environment.

@ 4 Ω 75 W RMS x 4
@ 2 Ω 100 W RMS x 4
Bridged @ 4Ω 200 W RMS x 2
@ 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 - 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 100 mV - 4 V RMS
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
Detent, Calibrated Filter Freq. Potentiometers Yes
Filter Defeat Function Yes
Remote Level Control Optional (HD-RLC)
Remote Level Modes 2 or All channels
Channel Input Mode Switch Yes (2/4 ch.)
Pass-Through Preamp Output Buffered
Source Channel Selection for PreOuts Yes
Height (H) 2.05 in / 52 mm
Width (W) 8.52 in / 216 mm
Depth (D) 7.09 in / 180 mm
Net Weight 4.75 lb / 2.15 kg

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For all items eligible for shipping:

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Expedited Shipping Options: Calculated At Checkout

Large Item Shipping Costs: Calculated At Checkout

Return Policy

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.

 

Non-returnable items:

Gift cards

Installed Products

 

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 social@freemanscarstereo.com.

 

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 social@freemanscarstereo.com and send your item to: 19010 Statesville Rd Cornelius North Carolina US 28031.

 

Gifts

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.

 

Shipping

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 info@freemanscarstereo.com

 

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.