We are a Jensen authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
•11" High-level input harness
•(4) Plastic spacers
•(4) 1-1/8" screws
•(4) Flat washers
•(4) Lock washers
•(2) Allen keys (4mm & 2mm)
•(2) Owner's manuals (Eng & Span)
High-quality Car Audio Equipment
Jensen has long been synonymous with high-quality car audio equipment, and the Jensen JA4B 4-channel amplifier is no exception. Engineered to deliver exceptional sound performance, the Jensen JA4B is a game-changer for car audio enthusiasts. The Jensen JA4B provides ample power for your car audio system, with 90 watts RMS per channel at 4 ohms. This versatile 4-channel amp allows you to connect multiple speakers and components, ensuring a well-balanced and immersive audio experience.
Precision and Reliability
Whether you enjoy crisp highs or deep bass, the JA4B offers the flexibility to cater to your unique audio preferences. Built with precision and reliability in mind, the Jensen JA4B is constructed with high-quality components to ensure durability. Its solid construction guarantees long-term performance, even in demanding conditions. Additionally, the amplifier features advanced circuitry for efficient power usage, maximizing performance while minimizing power consumption.
The Jensen JA4B is designed for hassle-free installation, making it accessible for professional installers and DIY enthusiasts. Its compact size and user-friendly interface allow a seamless integration into your vehicle's audio system. With clear instructions and intuitive controls, setting up the Jensen JA4B is a breeze.
Maximum Power : 740 Watts
Number of Channels : 4
Frequency Response : 20-20000 Hz
Built In Crossovers : Yes
RMS Power Output : 90 x 4 Watts
Amplifier Class : D
Fuse Rating : 50 A
RGB Custom color illumination
Class D design
2 Ohm stable stereo operation
Bridgeable operation for subwoofer applications
10 Band EQ (5 per channel)
Inputs: High (speaker wire) and Low (RCA) level
Adjustable high and lowpass crossovers: 32 Hz – 320 Hz
Adjustable high and low-pass crossovers: 32 Hz – 320 Hz
Continuous Power Output: 90W RMS x 4 Channels at 4?
115W RMS x 4 Channels at 2?
230W RMS x 2 Channels at 4? BRIDGED (1% THD+N)
Maximum Dynamic Power: 125W RMS x 4 Channels at 1kHz at 4?
185W RMS x 4 Channels at 1kHz at 2?,
365W RMS x 2 Channels at 1kHz at 4? BRIDGED (10% THD+N)
Signal to Noise: 70dBA reference 1 Watt RMS
THD+N: <0.15% at 1 Watt RMS from 20Hz to 20kHz
Frequency response: 20Hz - 20kHz
Amplifier dimensions: 2.16" x 8.38" x 5.59" (HxWxD)
RMS Power Output (Watts x Channels): 90 x 4
Peak Power Output (Watts x Channels): 125 x 4
Power at 2 Ohms (Watts x Channels): 115 x 4
Bridged Power (Watts x Channels): 230 x 2
Minimum Impedance Bridged: 4
Minimum Impedance Unbridged: 2
Best Frequency Response: 20Hz-20k Hz
THD at Rated RMS Power: 0.15%
Signal to Noise Ratio:70 dB
Input Voltage: 14.4v
Low-Pass Crossover Frequency: 20-500Hz
Low-Pass Slope (dB/octave): 6, 12, 18 dB/octave
High-Pass Crossover Frequency:20-500Hz
High-Pass Slope (dB/octave): 6, 12, 18 dB/octave
Bass Boost: Yes
Bass Boost Frequency: 45 Hz
Fan Cooled: No
Fuse Rating: 50
Speaker Level Inputs: Yes
Parts Warranty:3 Years
Labor Warranty:3 Years
Authorized Internet Dealer
Warranty: 1 Year Onlinecarstereo.com warranty.
1 Year warranty from Onlinecarstereo.com implies that repairs must be returned to Onlinecarstereo.com, not the manufacturer. More information can be found in our help section under returns & warranties. What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warrantied if the defect is due to physical damage.
Estimated Shipping Time for Special Order items is 7-10 days.
You may call our Customer Service Department at 310-526-8635 for a more accurate shipping estimate.
Special Order Product
Reserve Now. Risk Free!
This product is temporarily out of stock and estimated date of arrival is unknown but you may order this item today to reserve it.
Order for this item is processed on a first come first served basis
You can cancel the order anytime, risk free
Or, call us for alternatives at 310-526-8635
Low Price Guarantee
Seen a better price? Drop us a line and we will do our best to match prices of our online competitors.
Call us : 1-310-526-8635
Guidelines and Limitations:
1. Competitor must have the exact same item in stock and the time of Price Match.
2. Price of the actual product price must be verifiable and valid at the time of Price Match.
3. Price matching is only applicable in new orders.
4. Limit one price match per identical item per customer.
Free Lifetime Tech Support
All your purchase from our store comes with Free Lifetime Technical Support. Please call our certified technicians at 310-874-3313 for any questions about your product.
Protect your invenstment
Who is Consumer Priority Service?
Consumer Priority Service was founded on the belief that consumers deserve
better service. Putting the satisfaction of the consumer at the forefront of our
corporate policy has driven our company to be among the very best at post sale service
both on and offline. Our lineup of consumer protection products can be found at
America’s largest retailers as well as America’s best boutique shops. Although some
of our Authorized Dealers compete with each other they all share one common belief
– Consumers Deserve A Better Service Provider. That is why your retailer has selected
Consumer Priority service, a place where you, our mutual customer, is Always Our
Why Do I need This?
Consumer Priority Service Extended Protection plans provides you with easy protection
from potentially high future repair costs. Planning ahead and taking action now
can save you the stress of dealing with unqualified servicers should your product
become defective. Saving time and money is in everybody’s best interests. We are
here for you.
What is Covered?
CPS Protection Plans are extensions of your manufacturers’ written warranty a few
added bonus features. Any malfunctions that would normally be covered within the
terms and conditions of the original written warranty would be covered through the
life of the Consumer Priority Service Extension. "Our Shield Means You're Protected."
Benefits of owning a Consumer Priority Service Plan
Zero Deductible All CPS plans are zero deductible. This means that ALLcosts
associated with Parts and Labor to repair your defective product are covered. Owning
a CPS service plan means you’re FULLY COVERED.
With CPS you can file a claim for repair or replacement 24 hours a day 7 days a
week through our consumer network at www.cpscentral.com
In-Home parts and labor protection plans provide service for your products at your
home or your workplace. Contact us Toll Free at 1-800-905-0443 so that we may arrange
for a convenient service time for you.
Express On-Site Upgrade
With our Express On-Site Upgrade plan you can now upgrade any of our service
plans to include door-to-door service. We'll pickup your defective product from
your home or workplace, repair or replace it, and return it to you.
Product Replacement Plan
Any product that plugs in or takes a battery qualifies for this program. If your
product fails to operate properly under the terms of its written warranty, we will
replace it, No Questions Asked!
Consumer Priority Service provides complete coverage across all 48 contiguous states.
No Lemon Guarantee
If our authorized service center determines your product to be beyond economical
repair or they have unsuccessfully attempted to repair your product three times,
we will replace your product.
Peace of Mind
Owning a CPS service plan virtually guarantees that you will get years of use from
your product through the duration of the plan.