Jensen JA1B 690 Watts Class D Mono Amp with Bluetooth App Control – JA1B
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Estimated Delivery:Oct 05 - Oct 09
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Free Shipping*: excludes oversized items

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Jensen JA1B 690 Watts Class D Mono Amp with Bluetooth App Control – JA1B
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- Jensen AMP App (Apple®/Android™)
- RGB Custom Color Illumination
- Class D Design
- High Level (Speaker Wire) Input
- Low Level (RCA) Inputs
- Dimensions: 2.16″ X 9.56″ X 5.59″ (HXWXD)
- Adjustable Bass Boost At 45 HZ
- CTA-2006-D Certified
*Upgrade to by Registering Your Professionally Installed Item When Registered within 60 Days of Purchase.
Jensen Amp Series
The new Jensen JA series amplifiers leverage 90+ years of audio excellence combined with modern smartphone technology to deliver the high-quality sound you require with the convenience and usability you seek.
App Control
Easy Access
Say goodbye to crawling in the trunk to adjust your amp. The new amp app allows you to dial in your amp’s settings from a smartphone anywhere or near the car. You don’t listen to music in the trunk, why tune your audio from back there?
Adjustment Options
Adjustment options are perfect for the seasoned audiophile and those new to the hobby. Take advantage of the built in EQ presets for great sound right out of the box or try your hand at custom tuning with detailed frequency, volume, and gain controls.
More than audio
In addition to customizing the audio options, the app also lets you choose RGB illumination options. Match the amp colors to your car interior or change colors on the fly to match your mood. The easy-to-see color wheel makes it simple to choose the prefect shade.
Built Without Compromise Small Size, Big Sound The Class-D amplifier design provides nearly double the efficiency of analog class AB amplifiers in a much smaller footprint. This lets you install them in very small spaces and to leaves trunk space for that road trip cooler or suitcase.
Dimensions: JA1B : 2.16″ h x 9.56″ w x 5.59″ d
Intuitive Side Panel Design
Clear labels make it easy to understand all side panel inputs, outputs, and connections for a faster installation.
Micro Circuitry
Modern micro circuitry enables the amplifiers to provide powerful sound in a super-small footprint.
Real Power, Trusted
The Jensen JA amplifiers are the first amps on the market to have third-party tested and approval to meet the updated CTA-2006-D specifications.
Speaker Outputs | Mono |
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Class | D Digital |
Speaker Inputs | High level (Speaker Wire), Low Level (RCA) |
Illumination | RGB |
App Control | Yes |
Crossover | Adjustable low-pass crossover (32 Hz – 300 Hz) |
Frequency Response | 20 Hz – 300 Hz |
Signal to Noise Ratio | 68 dBA |
Total Dynamic Power | 690 Watts |
Outputs | RCA Pass Through |
Gain Adjustment | Variable 200 mV ~ 6 V |
Adjustable Bass Boost | 45 Hz |
Power Supply | PWM MOSFET |
Fuse Size and Type | 25A x 2 |
Dimensions | 2.16″ X 9.56″ X 5.59″ (HXWXD) |
Recommended Power/Ground Wire | 4-8 AWG |
Recommended Speaker Wire | 12 – 16 AWG |
FEATURES
- 1-Ch / Monoblock Car Amplifier
- Jensen DSP AMP App (Apple/Android)
- Class-D Technology
Free Shipping*
We only offer Free Shipping to the 48 contiguous United States.
*Please note that we do not offer Free Shipping on all items as some items are oversized and may require a surcharge.
Shipping Restrictions
We currently do not ship to P.O. boxes or APO/FPO addresses.
We do not offer FREE Shipping to Hawaii, Puerto Rico, or Alaska.
International Shipping
Sorry, but we currently do not ship internationally at this time.
Returns
Once your item(s) are delivered, you have 30 days from the date of delivery to ship them back to us for a full refund. After 30 days, all sales are FINAL and returns will not be accepted.
If there is a problem with your order, please be sure to contact us immediately!
To be eligible for a return, all merchandise must be in its original packaging, unused, in original factory condition, and must include all original packaging materials, warranty cards, manuals and accessories.
Customer Services
If for some reason you have an issue with your order, please email us directly.
Frequently Asked Questions
How long does shipping take?
We typically process, handle and ship all new orders within 1-2 business days.
Do you ship internationally?
Unfortunately, we do not currently offer international shipping.
How do I start a return?
Please email us here to submit a return request.
Can I install this myself or do I need a professional?
For optimal efficiency and performance, we recommend professional installation for ALL of the products we offer.
How can I contact customer service?
Call us at (888) 884-6229 or email us at support@horizongearco.com