---
product_id: 325613966
title: "Bass Pro SL2 8'' Underseat Subwoofer Boombox"
brand: "jbl"
price: "€ 758.41"
currency: EUR
in_stock: true
reviews_count: 13
category: "Jbl"
url: https://www.desertcart.hr/products/325613966-bass-pro-sl2-8-underseat-subwoofer-boombox
store_origin: HR
region: Croatia
---

# Compact 344x71x250mm 125W RMS power Adjustable 50-120Hz crossover Bass Pro SL2 8'' Underseat Subwoofer Boombox

**Brand:** jbl
**Price:** € 758.41
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your drive with bass that’s felt, not seen.

## Quick Answers

- **What is this?** Bass Pro SL2 8'' Underseat Subwoofer Boombox by jbl
- **How much does it cost?** € 758.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/325613966-bass-pro-sl2-8-underseat-subwoofer-boombox)

## 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

- • **Space-saving design:** Low-profile 8" subwoofer fits neatly under your seat, preserving cargo space
- • **Customizable sound control:** Manual crossover and bass boost let you tailor the bass to your ride
- • **Powerful yet discreet bass:** 125W Class D amp delivers deep, rich sound without bulk
- • **Heat-efficient and reliable:** Built-in amplifier with minimal heat output for consistent performance
- • **Seamless system integration:** Line and high-level inputs ensure smooth blending with factory or aftermarket speakers

## Overview

The JBL Bass Pro SL2 is a compact 8-inch underseat subwoofer powered by a 125W Class D amplifier, designed to enhance your car audio with deep, customizable bass. Its low-profile design fits under most front seats, preserving space while delivering a frequency response of 35Hz to 120Hz. Featuring adjustable crossover controls, bass boost, and both line and high-level inputs, it integrates seamlessly with factory or aftermarket systems. Ideal for professionals seeking a refined, powerful bass upgrade without sacrificing practicality.

## Description

The BassPro SL2 under-seat subwoofer makes your driver's seat the best seat in the worldThe BassPro SL2 Active car Subwoofer kit fits under the front seat of many vehicles and adds deep, rich bass to your car audio system. The low-profile 8" car subwoofer is powered by a powerful Class D digital amplifierActive Subwoofer CarThe built-in subwoofer amplifier that actively drives the BassPro SL2 subwoofer generates minimal heat and features high-pass filters and limiters that deliver exceptional power at the limitFully Controllable Sub Woofer Auto SetUse the manual crossover control (50Hz - 120Hz) to adjust how much upper and mid bass the BassPro SL2 produces. Fine-tune the crossover to achieve a smooth transition from the BassPro SL2 to the car speakers. Use the level control to match the volume of the BassPro SL2 to the car speakers in the system, while the bass boost control allows you to minimise peaks or dips in the bass frequencies in your car's acoustic environment. For added flexibility in your car sound system, the BassPro SL2 offers line and high level inputs.SpecificationsWoofer: 8" (200mm)Amplifier power: 125W RMSFrequency response: 35Hz - 120HzFuse rating: 15AMaximum current draw: 12AQuiescent current consumption: <800mAInput sensitivity: 0.05V - 2V line-level input; 0.5V - 20V high-level inputCrossover frequency: 50Hz - 120HzCrossover slope: 12dB/octaveBass boost: 0dB to +9dB at 70HzDimensions (mm): 344 x 71 x 250 (W x H x D)GTO-RBC remote control compatibleIn the Box: BassPro SL2 subwoofer; wired bass level remote control; 4 fixing screws; manual

Review: Perfect low-profile bass upgrade without losing space - I installed this in my 1982 Volkswagen Rabbit, and honestly, this thing exceeded my expectations. I didn’t want a giant sub box taking up half the hatch area or rattling the entire car apart — I just wanted clean, balanced low-end to fill out the sound system. This does exactly that. The bass is tight and surprisingly powerful for such a compact underseat subwoofer. It’s not going to compete with a pair of 12s in a custom enclosure, but that’s not the point of this product. It adds the perfect amount of punch and depth to music without overwhelming everything else. I paired it with JBL Club speakers, and the system sounds fantastic now. Bass guitars, kick drums, synth bass, and even classic rock tracks all sound fuller and more alive without sounding muddy. Installation was straightforward, and the compact size made placement really easy. The included controls are simple to dial in, and once adjusted properly, it blends into the system extremely well. One thing I really appreciate is that it adds bass you can feel without turning your car into “that guy’s” car shaking apart at stoplights. It’s mature bass. Respectable bass. Adult bass. If you want clean low-end improvement while keeping your cargo space and factory-ish practicality, this thing is absolutely worth it.
Review: Does what it was meant to do! - I bought the powered JBL sub for 2 reasons: 1- I could hide it under my seat. 2- It’s a JBL Installation wasn’t that difficult, there is enough information out there to figure out installation on any vehicle. Most of the negative feedback I read when researching which sub I should buy talked about the sub not hitting hard enough or it made little or no difference to the existing system. I think the right application of equipment like this is critical. I felt it was a good choice for me because it was going in a small Toyota pickup and I wasn’t looking for huge sustaining bass. I listen to a lot of rock and heavy metal and was looking for some kick drum thump and boost in frequencies below 120hz. This sub has a good amount of range but you’ve got to spend some time dialing it in. That’s not a bad thing, no sub sounds great just plugging it in. You have to listen and adjust, listen and adjust. I have an Alpine head unit with a pretty decent eq section, everything had to be re calibrated. After listening to the new configuration for a couple of weeks and a total of 3-4 hours of tweaking it, I can honestly say it made a big difference to my system. Much cleaner bass frequencies, especially at higher volume levels. Kick drums you can feel and an all around way better mix. It really depends on what you need it to do. Giant bass will usually require a giant sub but if you’re looking to enhance an already good sounding system in a space that’s not too big, this may be the answer. It was definitely worth the try.

## Features

- High Quality Caraudio
- Enjoy the best music experience
- Excellent Sound Quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XS4PND2 |
| Additional Features | Amplifier |
| Antenna Location | For Music Players |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #69,956 in Electronics ( See Top 100 in Electronics ) #51 in Car Enclosed Subwoofer Systems |
| Brand | JBL |
| Built-In Media | JBL Bass Pro SL2 8'' Underseat Subwoofer Boombox |
| Color | Black |
| Compatible Devices | Laptop, MP3 Player, Smartphone, Tablet |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth, RCA |
| Control Method | App |
| Controller Type | Remote Control |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 out of 5 stars 488 Reviews |
| Enclosure Material | ABS enclosure and 8'' woofer |
| Frequency Response | 120 Hz |
| Global Trade Identification Number | 06925281963322 |
| Is Electric | Yes |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 9.84"D x 13.54"W x 2.8"H |
| Item Type Name | JBL Bass Pro SL2 8'' Underseat Subwoofer Boombox |
| Item Weight | 2.5 Kilograms |
| MP3 player | No |
| Manufacturer | Harman |
| Model Name | JB BASSPROSL2 |
| Model Number | SUBBPSL2 |
| Mounting Type | Flush Mount |
| Number Of Circuits | 1 |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Series Number | 454 |
| Signal-to-Noise Ratio | 95 dB |
| Speaker Maximum Output Power | 125 Watts |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | for cars |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 20.32 Centimeters |
| Tweeter Diameter | 1 Inches |
| Unit Count | 1.0 Count |
| Warranty Description | 1 years |
| Warranty Type | Limited |
| Water Resistance Level | Waterproof |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 20.32 Centimeters |

## Product Details

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

## Images

![Bass Pro SL2 8'' Underseat Subwoofer Boombox - Image 1](https://m.media-amazon.com/images/I/71xBCGYj55L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect low-profile bass upgrade without losing space
*by B***T on May 31, 2026*

I installed this in my 1982 Volkswagen Rabbit, and honestly, this thing exceeded my expectations. I didn’t want a giant sub box taking up half the hatch area or rattling the entire car apart — I just wanted clean, balanced low-end to fill out the sound system. This does exactly that. The bass is tight and surprisingly powerful for such a compact underseat subwoofer. It’s not going to compete with a pair of 12s in a custom enclosure, but that’s not the point of this product. It adds the perfect amount of punch and depth to music without overwhelming everything else. I paired it with JBL Club speakers, and the system sounds fantastic now. Bass guitars, kick drums, synth bass, and even classic rock tracks all sound fuller and more alive without sounding muddy. Installation was straightforward, and the compact size made placement really easy. The included controls are simple to dial in, and once adjusted properly, it blends into the system extremely well. One thing I really appreciate is that it adds bass you can feel without turning your car into “that guy’s” car shaking apart at stoplights. It’s mature bass. Respectable bass. Adult bass. If you want clean low-end improvement while keeping your cargo space and factory-ish practicality, this thing is absolutely worth it.

### ⭐⭐⭐⭐⭐ Does what it was meant to do!
*by J***A on October 22, 2024*

I bought the powered JBL sub for 2 reasons: 1- I could hide it under my seat. 2- It’s a JBL Installation wasn’t that difficult, there is enough information out there to figure out installation on any vehicle. Most of the negative feedback I read when researching which sub I should buy talked about the sub not hitting hard enough or it made little or no difference to the existing system. I think the right application of equipment like this is critical. I felt it was a good choice for me because it was going in a small Toyota pickup and I wasn’t looking for huge sustaining bass. I listen to a lot of rock and heavy metal and was looking for some kick drum thump and boost in frequencies below 120hz. This sub has a good amount of range but you’ve got to spend some time dialing it in. That’s not a bad thing, no sub sounds great just plugging it in. You have to listen and adjust, listen and adjust. I have an Alpine head unit with a pretty decent eq section, everything had to be re calibrated. After listening to the new configuration for a couple of weeks and a total of 3-4 hours of tweaking it, I can honestly say it made a big difference to my system. Much cleaner bass frequencies, especially at higher volume levels. Kick drums you can feel and an all around way better mix. It really depends on what you need it to do. Giant bass will usually require a giant sub but if you’re looking to enhance an already good sounding system in a space that’s not too big, this may be the answer. It was definitely worth the try.

### ⭐⭐⭐⭐⭐ Feel like I got what I paid for and more !!
*by D***E on May 27, 2026*

By far my best purchase in a long time . Bought it new and replaced what was in my truck . JBL had been my go to in the last 10 years . For home , portable speakers ,earbuds and auto . I have yet to be disappointed and for the $ I find the sound quality great !!

## Frequently Bought Together

- JBL BassPro SL2 Active Underseat Car Subwoofer with Built in Amplifier - Under Seat 8'' 125 Watt Power Amplifier
- BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals
- Kicker 46KISLOC K-Series Interconnect, Speaker to RCA W/Line-Out Converter

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-22*