Jensen 690 Watts Class D Mono Amp with Bluetooth App Control – JA1B
Key features
- Amplifier channels: 1
- RMS output at 4 ohms: 290.0 W
- RMS output at 2 ohms: 470 W
- RMS output at 1 ohm: 595 W
Jensen 690 Watts Class D Mono Amp with Bluetooth App Control – JA1B is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Get app-based sound tuning in a compact car audio amplifier with the Jensen JA1B Class D mono amp. It delivers up to 690 watts of maximum dynamic power and lets you adjust settings and RGB illumination from a compatible iOS or Android smartphone.
Key Features & Benefits
- Class D mono design: One-channel output and a compact footprint suit installations where space is limited.
- Bluetooth app control: Adjust gain, frequency, bass boost, volume, and RGB illumination from the Jensen AMP App.
- Two input types: High-level speaker wire and low-level RCA inputs support different car audio system connections.
- Adjustable low-pass crossover: Set the crossover from 32 Hz to 320 Hz to tune the amplifier for your system.
- Adjustable bass boost: Shape bass output at 45 Hz to suit your listening preferences.
- RCA pass-through outputs: Send an RCA signal onward to other audio equipment.
Technical Specifications
| Brand | Jensen |
|---|---|
| Model | JA1B |
| Amplifier class | Class D |
| Speaker outputs | Mono |
| Total dynamic power | 690 Watts |
| Continuous power output (RMS) | 595W x 1 Channel @ 1 ohm; 470W x 1 Channel @ 2 ohm; 290W x 1 Channel @ 4 ohm |
| Maximum dynamic power by load | 690 Watts at 1 ohm; 565 Watts at 2 ohms; 325 Watts at 4 ohms |
| Audio inputs | High Level (Speaker Wire), Low Level (RCA) |
| Audio outputs | RCA Pass Through |
| Frequency response | 20 Hz – 300 Hz |
| Signal-to-noise ratio | 68 dBA |
| Crossover | Adjustable low-pass crossover (32 Hz – 320 Hz) |
| Bass boost | Adjustable at 45 Hz |
| Gain adjustment | Variable 200 mV – 6 V |
| App control | Bluetooth for iOS & Android |
| Illumination | RGB Custom Color |
| Power supply | PWM MOSFET |
| Fuse rating | 25A x 2 |
| Recommended power/ground wire | 4 – 8 AWG |
| Recommended speaker wire | 12 – 16 AWG |
| Certification | CTA-2006-D Certified |
| Dimensions (H x W x D) | 5.5 cm x 24.3 cm x 14.2 cm |
| Dimensions (H x W x D) | 2.16″ X 9.56″ X 5.59″ |
| Weight | 1.8 kg |
| Warranty | 4-year limited warranty when registered within 60 days of purchase. |
Why Choose This Product?
The JA1B combines app-based adjustments with both speaker-level and RCA inputs, giving you options for connecting it to a compatible car audio system. Its mono output, adjustable crossover, and bass boost let you tailor the setup without relying on a single fixed tuning choice.
Installation & Compatibility Notes
This amplifier is compatible with car audio systems that support high-level speaker wire or low-level RCA inputs. App control requires a compatible Apple iOS or Android smartphone with Bluetooth.
Plan for the recommended 4 – 8 AWG power and ground wiring and 12 – 16 AWG speaker wiring. Check your system’s connections, load, and available mounting space against the amplifier’s dimensions before installation.
Frequently Asked Questions
How much power does the Jensen JA1B produce?
Its listed continuous output is 595W x 1 channel at 1 ohm, 470W x 1 channel at 2 ohms, and 290W x 1 channel at 4 ohms. Maximum dynamic power is listed as 690, 565, and 325 watts at those respective loads.
How do I adjust the amplifier settings?
Use the Jensen AMP App on a compatible Apple or Android smartphone with Bluetooth to adjust settings such as gain, frequency, bass boost, volume, and RGB illumination.
What audio connections does the JA1B support?
It has high-level speaker wire and low-level RCA inputs, plus RCA pass-through outputs. Match the input connection to your car audio system.
What wiring sizes are recommended?
The recommended power and ground wire size is 4 – 8 AWG. The recommended speaker wire size is 12 – 16 AWG.
What is the warranty?
The product has a 4-year limited warranty when registered within 60 days of purchase.
Explore More
Shop for car audio at 12 Volt Outlet, and explore the Jensen brand profile.
| Brand | Jensen |
| Model | JA1B |
| Amplifier Class | Class D Digital |
| Speaker Outputs | Mono |
| Total Dynamic Power | 690 Watts |
| Continuous Power Output (RMS) | 595W x 1 Channel @ 1 ohm, 470W x 1 Channel @ 2 ohm, 290W x 1 Channel @ 4 ohm |
| Audio Inputs | High Level (Speaker Wire), Low Level (RCA) |
| Audio Outputs | RCA Pass Through |
| Frequency Response | 20 Hz – 300 Hz |
| Signal to Noise Ratio | 68 dBA |
| Crossover | Adjustable low-pass crossover (32 Hz – 320 Hz) |
| Bass Boost | Adjustable at 45 Hz |
| Gain Adjustment | Variable 200 mV – 6 V |
| App Control | Yes (Bluetooth for iOS & Android) |
| Illumination | RGB Custom Color |
| Power Supply | PWM MOSFET |
| Fuse Rating | 25A x 2 |
| Recommended Power/Ground Wire | 4 – 8 AWG |
| Recommended Speaker Wire | 12 – 16 AWG |
| CTA-2006-D Certification | Certified |
| Dimensions (H x W x D) | 5.5 cm x 24.3 cm x 14.2 cm |
| Weight | 1.8 kg |
Frequently asked questions
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