Welcome to our website! As we have the ability to list on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you are an American with a disability we are here to help you. Please call our disability services phone line at (508) 771-4434 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for any American with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

Voted #1 Best Electronics Dealer
South of Boston


Most Prices Low as Amazon's
slogan View Cart
JL Audio Logo

4 Ch. Class D Full-Range Amplifier, 280 W

Model # HX2804

Regular Price $259.99

Our Price $229.99

Our Price

$229.99

Savings $30

Add to cartAdd to cart

Call (508) 771-4434 for today's best deal

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 HX280/4 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 HX280/4 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 gasketed cover for the controls and stainless steel hardware for durability.

Technology
NexD™ Switching Technology

NexD™ amplifier technologies produce exceptional audio quality, unsurpassed total efficiency and high power from very compact amplifier designs.

Differential-Balanced Inputs

JL Audio's Differential-Balanced Inputs are engineered to combat induced cable noise, which is a common problem in car and marine audio installations. This technology allows for the use of conventional RCA cables, while delivering many of the benefits of a true balanced connection and accepting a wide range of input signal levels.

Rated Continuous (RMS) Power @ 14.4 V
@ 4 50 W RMS x 4
@ 2 70 W RMS x 4
Bridged @ 4 140 W RMS x 2
Rated Continuous (RMS) Power @ 12.5 V
@ 4 36 W RMS x 4
@ 2 52 W RMS x 4
Bridged @ 4 100 W RMS x 2
General Specifications
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 >70.5 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 >60 / 50 Hz
Damping Factor @ 2 >30 / 50 Hz
THD+N @ Rated Power
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 )
Signal Processing
Filter Mode(s) Low-Pass or High-Pass
Filter Slope(s) 12 dB/octave
Filter Frequency Range 35 Hz - 300 Hz
Detented, Calibrated Filter Freq. Potentiometers Yes
Filter Defeat Function Yes
Remote Level Control No
Remote Level Modes N/A
Channel Input Mode Switch Yes (2/3/4 ch.)
Pass-Through Preamp Output None
Source Channel Selection for PreOuts N/A
Physical Specifications
Height (H) 1.77 in / 45 mm
Width (W) 8.66 in / 220 mm
Depth (D) 3.09 in / 78.5 mm
Net Weight 3.18 lb / 1.44 kg

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy, and expensive and you probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Questions or Comments?
Call (508) 771-4434 for assistance. Click Here for Nantucket Sound location and contact information.

When it comes to buying new electronics for your home, there are a lot of choices available to you. We merchandise our store with careful consideration, striving to carry the appropriate variety of the best brands available today. We know everything about our products and are eager to help you find anything that fits your unique needs. Let us help you find your perfect match in size, features, price, and style.

Finding the right electronics can be a daunting task, but one well worth the effort. You'll use your new electronics often, and they add value, style, and convenience to your home. Make sure you have the right information to help you make these important decisions. Shop with experts who can show you the best selection available and answer all your questions; come see our inventory of the latest trends and the most dependable manufacturers.

Because we know our products inside and out, our service doesn't end with your purchase. We have long standing relationships with the most popular manufacturers and all the product knowledge to help you maintain healthy efficient electronics for the duration of their lives.

Shop where you can see the finest selection of the best products available today to match your budget, needs, and style. Shop where experts can guide you through the myriad of options available and can answer your every question. Shop where you get exceptional service for the life of your electronics.

Come shop with us!