Jensen JA4B
Four-channel Class D amp with Bluetooth app lighting and crossovers
$179.99
Overview
The Jensen JA4B is a Class D 4-channel amplifier with CTA certification, RGB illumination, and Jensen AMP app control. High-level and RCA inputs, adjustable crossovers, and RCA pass-through support full-range speaker systems from factory or aftermarket head units. Variable gain helps match source levels without clipping. Use proper gauge power, ground, and fusing; a wiring kit is sold separately. Confirm speaker impedance before bridging or multi-amp layouts. App lighting needs a compatible smartphone.
Product details
Four-channel Class D
Drive front and rear speakers from one compact Class D chassis with CTA-rated performance and variable gain.
Tuning controls
Adjustable crossovers and app-assisted setup help match speaker sets without a separate DSP in many installs.
Lighting and linking
RGB illumination is app-customizable, and RCA pass-through supports adding a mono sub amp later.
Key features
- Class D 4-channel amplifier
- CTA certified design
- Jensen AMP app (Apple/Android)
- RGB custom color illumination
- High-level and RCA inputs
- Adjustable crossovers
- RCA pass-through
- Variable gain control
Specifications
| Weight | 6 lbs |
|---|---|
| Dimensions | 8.38 × 5.59 × 2.16 in |
| Channels | 4 channel |
| Brand | Jensen |
| Model | JA4B |
| SKU | JA4B |
| UPC | 827204118894 |
| Product type | 4-channel amplifier |
| Channels | 4 channel |
| Class | D Digital |
| CTA certification | Yes |
| Inputs | High level, RCA |
| Outputs | RCA pass-through |
| Illumination | RGB |
| App control | Yes |
Important notes
- Install with adequate power wire, ground, and fusing (kit sold separately)
- Confirm speaker impedance load before bridging or multi-amp setups
- Phone required for app illumination features
What's in the box
- Jensen JA4B 4-channel amplifier
- Accessories as packaged
