# QTX KAD-2BT 4" Outdoor Speaker System with Bluetooth & FM Radio

Upgrade your garden or patio with the QTX KAD-2BT Outdoor Speaker System, the perfect all-in-one solution for bringing music to your outdoor space.

Whether you're hosting a summer barbecue, relaxing with a book in the sun, or enjoying an evening drink with friends, this system offers rich, detailed sound in a compact and weather-resistant setup.

This bundle combines the versatile QTX KAD-2BT stereo amplifier with Bluetooth, FM radio, USB/SD media playback and RCA inputs, paired with a set of robust Adastra BH4 4" outdoor speakers.

The system is ideal for casual listeners who want simplicity and quality without the need for complicated setups or large, bulky equipment.

**FEATURES**

-   **Bluetooth Connectivity**: Stream music wirelessly from your phone, tablet or laptop — perfect for outdoor gatherings without messy cables.
-   **Weather-Resistant Speakers**: The BH4 speakers are IP54 rated and housed in durable ABS enclosures, making them suitable for year-round outdoor use.
-   **Built-in FM Radio & Media Playback**: Enjoy your favourite stations or play MP3s directly from USB sticks or SD cards — no internet required.
-   **Compact 4" Speakers**: Don’t be fooled by the size — the 4" woofers and 0.5" dome tweeters deliver a well-balanced and full-range sound.
-   **Versatile Mounting Options**: Supplied with adjustable wall-mount brackets, you can easily angle the speakers for optimal coverage.
-   **Multiple Input Options**: RCA and 3.5mm AUX inputs allow easy connection to TVs, CD players or other external devices.
-   **Compact Amplifier Design**: Small enough to tuck away indoors or in a garden shed, yet powerful enough to drive the outdoor speakers with clarity.

Enjoy effortless outdoor audio with a system that’s easy to set up, simple to use, and built to last.

###### What You Get

-   1 x QTX KAD2-BT Amplifier
-   **Single -** 1 x Adastra BH4 4" Water Resistant On Wall Speakers (Pair)
-   **Pair** - 2 x Adastra BH4 4" Water Resistant On Wall Speakers (Pair)
-   10m x 2 Core Speaker Cable

###### Specifications

AMPLIFIER

-   **Power Supply:** 230Vac, 50Hz (IEC)
-   **Output Impedance:** 4 - 8 Ohms
-   **Input Sensitivity:** line 380mV
-   **Input Sensitivity:** mic (unbalanced)15mV
-   **Output Power:** 8 Ohms 2 x 25W rms / 2 x 40W max. (EIAJ Standard @ 1kHz 10% THD)
-   **Output Power:** 4 Ohms 2 x 35W rms / 2 x 55W max. (EIAJ Standard @ 1kHz 10% THD)
-   **Finish:** Black
-   **Dimensions:** 200 x 200 x 65mm
-   **Weight:** 1.6kg

SPEAKERS

-   **Impedance:** 8 Ohms
-   **Power Handling:** max. 60W
-   **Power Handling:** rms 30W
-   **Frequency Response:** 100Hz - 20kHz
-   **LF Driver:** 100mmØ (4")
-   **HF Driver:** 13mmØ (0.5")
-   **Dispersion Angle:** 120°
-   **Sensitivity:** 89dB
-   **IP Rating:** IP44
-   **Dimensions (each):** 195 x 127 x 126mm
-   **Weight (each):** 1.23kg
-   **Warranty:** 1 Year

## Details

- **Price:** 169.0 GBP
- **Vendor:** QTX
- **Type:** Outdoor Speaker Systems
- **Tags:** BLACK5, Bundle, dfw_feed_exclude, Prime

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Black | 169.00 GBP | In stock |
| White | 169.00 GBP | In stock |

## Images

- QTX KAD-2BT 4" Outdoor Speaker System with Bluetooth & FM Radio - K&B Audio
- QTX KAD-2BT 4" Outdoor Speaker System with Bluetooth & FM Radio - K&B Audio
- QTX KAD-2BT 6.5" Outdoor Speaker System with Bluetooth & FM Radio - K&B Audio
- QTX KAD-2BT 6.5" Outdoor Speaker System with Bluetooth & FM Radio - K&B Audio
- QTX KAD-2BT 6.5" Outdoor Speaker System with Bluetooth & FM Radio - K&B Audio
- QTX KAD-2BT 6.5" Outdoor Speaker System with Bluetooth & FM Radio - K&B Audio
- QTX KAD-2BT 6.5" Outdoor Speaker System with Bluetooth & FM Radio - K&B Audio
- QTX KAD-2BT 6.5" Outdoor Speaker System with Bluetooth & FM Radio - K&B Audio

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> Source: [K&B Audio](https://www.kbaudio.co.uk/products/qtx-kad-2bt-fm-radio-bluetooth-speaker-system-inc-outdoor-wall-mounted-speakers)
> Updated: 2026-07-12