---
product_id: 109242533
title: "Olefu BT50 Dual 800W Class A/B Spare Wheel Active Powered Car Subwoofer Built-in Dual 8\" Speaker Amplifiers"
brand: "olefu"
price: "€ 858.95"
currency: EUR
in_stock: true
category: "Car"
url: https://www.desertcart.pt/products/109242533-olefu-bt50-dual-800w-class-a-b-spare-wheel-active
store_origin: PT
region: Portugal
---

# Olefu BT50 Dual 800W Class A/B Spare Wheel Active Powered Car Subwoofer Built-in Dual 8" Speaker Amplifiers

**Brand:** olefu
**Price:** € 858.95
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Olefu BT50 Dual 800W Class A/B Spare Wheel Active Powered Car Subwoofer Built-in Dual 8" Speaker Amplifiers by olefu
- **How much does it cost?** € 858.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/109242533-olefu-bt50-dual-800w-class-a-b-spare-wheel-active)

## Best For

- olefu enthusiasts

## Why This Product

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

## Description

Product parametersSUPPLY VOLTAGE 11-15V DC POWER OUTPUT 2OHM RMS 400W MAX POWER 2OHM 800W*2 FREQUENCY RESPONSE 25Hz~150Hz LPF 40~150Hz SUBSONIC 25Hz PHASE 0/180° INPUT IMPEDANCE 15K OHMS S/N RATIO 90dB T.H.D 0.05% Dimension:Φ350 mm x 148 mm (D)

## Features

- Creative spare wheel design, fit original car spare tire design directly,heat dissipation performance will be better. do not take up limited space, hidden installation, suitable for 90% of mainstream vehicle on the market;
- Built-in double 8 "speaker, peak output power 800w amplification , compatible with high level input, .Built-in amplifier with switch to adjust the volume control switch and low-pass, by fine-tuning and sound field horn can make sound pefect.
- Aluminum alloy shell design, waterproof performance, and the impact ability will be stronger, boost bass, make sound more clear;
- Class A/B design,Frequency Response: 20Hz-150Hz|LPF:40~150Hz|Phase:0/180°,Remote controll provided for volume control, low-pass control and phase switch | Automatic switch-on
- Supply Voltage: 11-15V DC | Max Power 2OHM 800W*2 ,Power output 2OHM RMS 400W ,Input Impedance15K OHMS,T.H.D 0.05%; Dimension φ350 mm x 148 mm (D)
- ›See more product details

## Images

![Olefu BT50 Dual 800W Class A/B Spare Wheel Active Powered Car Subwoofer Built-in Dual 8" Speaker Amplifiers - Image 1](https://images-na.ssl-images-amazon.com/images/I/51W7EtkyVFL.jpg)
![Olefu BT50 Dual 800W Class A/B Spare Wheel Active Powered Car Subwoofer Built-in Dual 8" Speaker Amplifiers - Image 2](https://images-na.ssl-images-amazon.com/images/I/41wo%2BxjsmIL.jpg)
![Olefu BT50 Dual 800W Class A/B Spare Wheel Active Powered Car Subwoofer Built-in Dual 8" Speaker Amplifiers - Image 3](https://images-na.ssl-images-amazon.com/images/I/41XFx%2B5VJ-L.jpg)
![Olefu BT50 Dual 800W Class A/B Spare Wheel Active Powered Car Subwoofer Built-in Dual 8" Speaker Amplifiers - Image 4](https://images-na.ssl-images-amazon.com/images/I/51VFKsJL%2BrL.jpg)
![Olefu BT50 Dual 800W Class A/B Spare Wheel Active Powered Car Subwoofer Built-in Dual 8" Speaker Amplifiers - Image 5](https://images-na.ssl-images-amazon.com/images/I/31ABpveziXL.jpg)

---

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**Shop now:** [https://www.desertcart.pt/products/109242533-olefu-bt50-dual-800w-class-a-b-spare-wheel-active](https://www.desertcart.pt/products/109242533-olefu-bt50-dual-800w-class-a-b-spare-wheel-active)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-23*