You have no items in your shopping cart.
JL Audio MX280/4 Marine Amplifier and x2 Pairs of JL Audio M3-650X-S-GW Marine Speakers
- Amp Highlights
- Amp Specifications
- Speaker Highlights
- Speaker Specifications
- Fit Guide - Vehicle Compatibility Lookup
- Returns & Shipping
4-Channel Class D Full-Range Amplifier, 70 W x 4 @ 2 Ω / 50 W x 4 @ 4 Ω - 14.4V
Engineered specifically for powersports applications, the 4-channel MX280/4 amplifier employs our high-speed NexD™ switching design to deliver plenty of clean power, without straining charging systems. Its tiny, cast aluminum chassis is highly resistant to corrosion, with an IPX6 water-resistance rating, making it perfect for motorcycles, ATV’s or other utility vehicles.
Generating a solid 50W x 4 into 4 ohms (14.4V, 1% THD), the MX280/4 is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a potent 140W x 2 into 4 ohms.
Other features include independent front and rear crossovers with selectable full-range, high-pass or low-pass filter controls and a dual-range input section that accepts a wide range of input voltage levels, from line-level all the way to high-power speaker level signals.
This amplifier features a black powder-coated finish, a gasket cover for the controls and stainless steel hardware for durability.
Rated Continuous (RMS) Power @ 14.4 V
|@ 4 Ω||50 W RMS x 4|
|@ 2 Ω||70 W RMS x 4|
|Bridged @ 4Ω||140 W RMS x 2|
Rated Continuous (RMS) Power @ 12.5 V
|@ 4 Ω||36 W RMS x 4|
|@ 2 Ω||52 W RMS x 4|
|Bridged @ 4Ω||100 W RMS x 2|
|Frequency Response||20 Hz - 20 kHz (+0, -1dB)|
|S/N Ratio, referred to highest rated power||>89.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)|
|S/N Ratio, referred to 1 W||>68 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)|
|Damping Factor @ 4 Ω||>60 / 50 Hz|
|Damping Factor @ 2 Ω||>30 / 50 Hz|
|THD+N @ Rated Power||<1% @ 2 Ω per Ch.|
|Input Voltage Range @ RCA Inputs||Switchable from 250 mV - 4 V RMS (Low) to 750 mV - 15 V RMS (High)|
|Min.Copper Power / Ground Wire Gauge||8 AWG wire|
|Fuse Rating||35 A (AFS, AGU or MaxiFuse™)|
- 6½" 2-way marine speakers (pair)
- Injection-molded, mica-filled polypropylene woofer with synthetic rubber surround
- ¾" silk dome tweeter
- UV- and corrosion-resistant polymer baskets and grilles
- Designed for free-air applications (no enclosures needed)
- for best performance, speaker needs at least 2 cubic feet of airspace
- Handles up to 60 watts RMS (225 watts peak power)
- Frequency response: 55-25,000 Hz
- Sensitivity: 89.5 dB
- Cutout diameter: 4.972
- Frame diameter: 6.9
- Mounting depth: 2.825
- Warranty: 2 years
|Tweeter Design||¾" Dome|
|Woofer Composition||Mica-Filled IMPP|
|Sensitivity||89.5 dB at 1 watt|
|Frequency Response||55 - 25k Hz|
|Max RMS Power Handling||60|
|Peak Power Handling (Watts)||225|
|Top-mount Depth (Inches)||2 ⅞"|
|Bottom-mount Depth (Inches)||N/A|
|Cutout Diameter or Length (inches)||5"|
- U.S. 48 Only
FREE: 1-5 Business Days UPS
Expedited Shipping Options: Calculated At Checkout
Large Item Shipping Costs: Calculated At Checkout
We ship most orders the same day if placed before 3pm Eastern time Monday - Thursday. Orders placed after 3pm will ship the next day. Orders placed after 3pm on Friday will be shipped on Saturday, orders placed after 3PM on Saturday will be shipped on Monday. We are glad to announce Saturday shipping – however we do not ship on Sundays. We do not ship on US holidays or whenever our carriers take holidays i.e., USPS, UPS, and FedEx.
Returns - Online Purchases
Purchases made on freemanscarstereo.com are eligible for a return request within 30 days of order delivery. A return authorization number is required for all returns: any return that does not contain a return authorization number will be refused and returned to the sender. Full refunds are only issued for unopened and unused products.
> Full Refunds
In order to be eligible for a refund, item(s) must be unused, unopened, and in the same condition in which it was received. There is no restocking fee for brand new/unopened/sealed items.
Customers will receive a return confirmation email within 1-2 business days that will confirm receipt of their return and confirm whether or not that return will be eligible for a refund. Approved refunds will be processed automatically via a credit back to the customer’s original payment method.
> Partial Refunds
Any item that is damaged, has missing parts, or is not in its original condition is subject to a restocking fee of up to 50% of the order total. If the box or seal is opened there is a 20% restocking fee.
Installed, used, or damaged items may not be eligible for return or, will incur a restocking fee. These situations include but are not limited to the following:
- Any sign of use - including signs of installation, scratches, physical marking, screw holes, or similar.
- Tags, stickers, or other manufacturer labels removed or tampered with.
- Missing parts or the original product packaging is damaged.
- A product that is returned bearing a serial number that does not match the serial number of the product shipped by Freeman’s Car Stereo.
- Physical damage from drops, liquid, mishandling or similar.
- Damage due to improper return packing by customer.
- Mounted or used subwoofer enclosures and speaker boxes.
- Blown, punctured or fried speakers, subwoofers, and amplifiers.
> Late or Missing Refunds
Refunds can take a week or longer to post to your account depending on your bank. If you haven’t received a refund yet, please contact your credit card company or bank. If your refund has still not been posted within 2 weeks of being issued please contact us via email: email@example.com.
> Online Gift Returns
If the item was marked as a gift when purchased and shipped directly to the gift recipient, the gift recipient will receive a store credit for the value of the return. Once the returned item is received, a freemanscarstereo.com gift certificate will be mailed.
We follow all manufacturer’s policies regarding the processing of warranties. Warranty exchanges or repairs are subject to eligibility periods based on purchase date as well as specific manufacturer policy.
Missing serial numbers, physical damage, or customer abused products will void warranties, repairs, and exchanges.
Items That Cannot Be Returned
- - Gift cards
- - Opened and/or used installation parts will not be accepted for return or refund.