---
product_id: 22393653
title: "JBL BassPro SL 8\" 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System, BASSPROSL"
brand: "jbl"
price: "A$96"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/22393653-jbl-basspro-sl-8-125w-rms-powered-under-seat-compact
store_origin: AU
region: Australia
---

# 250W Peak Output 125W RMS Power Variable Bass Boost JBL BassPro SL 8" 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System, BASSPROSL

**Brand:** jbl
**Price:** A$96
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Drive with JBL's BassPro SL!

## Quick Answers

- **What is this?** JBL BassPro SL 8" 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System, BASSPROSL by jbl
- **How much does it cost?** A$96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/22393653-jbl-basspro-sl-8-125w-rms-powered-under-seat-compact)

## Best For

- jbl enthusiasts

## Why This Product

- Trusted jbl brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek Design:** Under-seat installation keeps your car looking clean and stylish.
- • **Dynamic Control:** Tailor your sound with adjustable low-pass filters and phase switches.
- • **Compact Powerhouse:** Transform your ride with booming bass without sacrificing space.
- • **Smart Connectivity:** Seamlessly integrates with your vehicle's audio system for an effortless upgrade.
- • **Built-in Protection:** Enjoy peace of mind with advanced circuitry that safeguards your system.

## Overview

The JBL BassPro SL is an 8-inch powered subwoofer designed for under-seat installation, delivering a powerful 125W RMS and peak output of 250W. With its efficient Class D amplifier, variable bass boost, and advanced protection circuitry, this compact system enhances your car's audio experience while maintaining a sleek profile.

## Description

JBL BASS PRO SL 8" UNDER-SEAT SUBWOOFER ENCLOSURE SPEAKER AMPLIFIER SLIM BOX NEW

## Features

- 8" JBL BassPro SL Powered Under-Seat Compact Subwoofer Enclosure | Power Output: Peak: 250 Watts | RMS: 125 Watts | Efficient Class D Amplifier | Proprietary, shallow-profile woofer
- LED power (green) and protect (red) indicators | Soft start turn-on | Speaker-level (high-level) inputs with Audio Sense Auto-on | Gold-plated Power, Ground and Remote screw-down connections | 3-way protection circuitry (thermal, overload, and speaker short protection)
- Wired Bass Remote Controller Ready, Compatible with GTO-RBC (sold separately) | Input sensitivity: Low level: 200mV - 2V | High level: 2V - 20V | Frequency Response: 35 - 120 Hz
- Variable low-pass filter: 50 - 120 Hz, 12 dB/octave | Variable Bass Boost: 0 to +9 dB bass boost at 70 Hz | Selectable Phase Switch: 0° - 180° | Maximum Current Draw: 12A
- Quiescent Current Draw: <800mA | Fuse Rating: 20 A x 1 | Dimensions: 9-7/8"W x 13-9/16"L x 2-13/16"H

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connectivity Technology | Wired |
| Compatible with Vehicle Type | Car |
| Unit Count | 1.0 Count |
| Is Waterproof | FALSE |
| Color | Black |
| Subwoofer Diameter | 8 Inches |
| Speaker Type | Subwoofer |
| Controller Type | Corded Electric |
| Additional Features | Protection |
| Warranty Type | [INF] Limited |
| Speaker Size | 8 Inches |
| Mount Type | Ground Mount,Under Seat Mount |
| Speaker Maximum Output Power | 125 Watts |
| Power Source | Corded Electric |
| Number of Batteries | 1 Lithium Ion batteries required. |

## Product Details

- **Brand:** JBL
- **Speaker Maximum Output Power:** 125 Watts
- **Frequency Response:** 120 Hz
- **Connectivity Technology:** Wired
- **Audio Output Mode:** Stereo

## Images

![JBL BassPro SL 8" 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System, BASSPROSL - Image 1](https://m.media-amazon.com/images/I/81VFcyx0FkL.jpg)
![JBL BassPro SL 8" 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System, BASSPROSL - Image 2](https://m.media-amazon.com/images/I/71qpxRiohgL.jpg)
![JBL BassPro SL 8" 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System, BASSPROSL - Image 3](https://m.media-amazon.com/images/I/81JKW6EDBmL.jpg)
![JBL BassPro SL 8" 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System, BASSPROSL - Image 4](https://m.media-amazon.com/images/I/41hA+ElNmRL.jpg)
![JBL BassPro SL 8" 125W RMS Powered Under-Seat Compact Subwoofer Enclosure System, BASSPROSL - Image 5](https://m.media-amazon.com/images/I/81tDdAFTu1L.jpg)

## Questions & Answers

**Q: will this fit under seat of a 2016 tacoma?**
A: I have a 2022 Tacoma and this DOES NOT slide under an installed seat. I don't know if it would fit if the seat is removed for installation (the back of the seat comes closer to the floorboard than the middle). I came to the Q&A looking for an answer to this as well... Will return if I can't find anything stating definitively that it works.

**Q: Can this be used with a factory stereo?**
A: Yes, but you would have to purchase a line out converter if you want to keep the factory head unit

**Q: How to get remote for the JBL underseat 8” woofer**
A: You can order it through Crutchfield or the JBL site. It's $35. I got one and never even use it but it works if you need to constantly adjust your bass

**Q: Why is this one twice as much as the the infinity basslink version that is half this price?  jbl and infinity are the same company under harmon kardon**
A: Damned if I know. Marketing?

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing value for a Compact Subwoofer
*by C***L on September 30, 2017*

After making the rounds at the local car-audio shops in the area, being pitched on way to much gear we took a chance and ordered the JBL BASSPROSL powered subwoofer. The requirement was to add some bass to the sound system in our classic C4 Corvette that already had a mildly updated system with a new head unit and Infinity speakers replacing the stock BOSE system. The new speakers clearly lacked bass and teh whole system had a tough time keeping up with the ambient noise when cruising with the C4's top removed.Installation was straightforward, the enclosure was screwed into the carpet and padding in the cargo area. We purchased a wiring kit that came with a fuse-holder, heavy-gauge power cable, ground cable and stereo RCA signal cables. Our head unit also has a control wire to turn the subwoofer on and off so that was connected, although the unit has an auto-power feature as well. Various controls allow fine-tuning the crossover frequency and levels but we just left everything flat and used the head unit's DSP to tune the subwoofer. The only criticism about the installation is that the power terminals are uncovered, exposing them to short-circuit. That's a big mistake on JBL's part that unnecessarily taints what is otherwise a well-designed product.Performance was more impressive than we expected and as long as your expectations are realistic, you'll also be impressed. For starters, the whole system play a lot louder, with lower distortion, simply because the full-range speakers are no longer trying to make bass. The sub doesn't go down overly low, but then again neither does the materials being streamed from a phone. The biggest impact is between 80-150 Hz, where suddenly the whole system comes to dramatic life. Surprisingly good, with ample output at very acceptable distortion levels, this product is a great value for what you pay for it.

### ⭐⭐⭐⭐ Great quality sound. Good bass boost.
*by J***S on July 23, 2019*

Nice speaker to add bass. Sounds awesome. Super easy to install. Definitely a worthy buy. The only downside is there is no remote to control the volume. You have to manually set it at the speaker itself. Besides that, it's an amazing sounding speaker.

### ⭐⭐⭐⭐⭐ Incredible sound! Just the right amount of bass!!
*by M***E on December 15, 2019*

This sub did exactly what I had hoped it would! I have a 2014 Toyota Tacoma and don’t have much room for any sub. I was hoping to put this under one of the front seats, but I decided to put it behind the rear seat.The installation took me roughly 2 hours, because I needed to locate the colored wires for my rear door speakers. Plus I have never done anything like this before.The sound is everything I had hoped for. I’m a bit fussy when it comes to music. This sub probably won’t blow your door off, but that wasn’t what I was looking for. I want more bass and overall a fuller sound to my truck, let me tell you that this did it perfectly!Very pleased!!My only “gripe” would be that the instructions were a little vague. I thought that I had a problem with the sub not turning off after I turned the truck off, but it looks like there is a delay in it doing that. I wish the instructions would have said that, but I found nothing addressing this or even explaining that their was a delay. I did find anything listed online about this issue.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.au/products/22393653-jbl-basspro-sl-8-125w-rms-powered-under-seat-compact](https://www.desertcart.com.au/products/22393653-jbl-basspro-sl-8-125w-rms-powered-under-seat-compact)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-15*