# WiiM AMP Ultra Wi-Fi Amplifier + Klipsch R-40M 4" Bookshelf Speakers

Experience premium streaming and powerful sound with this complete hi-fi system bundle, featuring the advanced WiiM AMP Ultra Wi-Fi Amplifier and the compact yet punchy Klipsch R-40M 4" Bookshelf Speakers.

Perfect for music lovers who want wireless convenience without compromising on audio quality, this setup delivers rich, room-filling sound that’s ideal for both casual listening and critical enjoyment.

The WiiM AMP Ultra offers a wealth of streaming options, voice assistant compatibility, and extensive connectivity, making it a versatile hub for all your music sources.

Paired with Klipsch’s legendary horn-loaded speaker technology, the R-40M speakers bring exceptional clarity and dynamic sound in a compact design, suited for small to medium-sized rooms. Whether you’re streaming your favourite playlists or connecting to your TV, this bundle combines modern features with classic acoustic performance.

**FEATURES**

-   **Wi-Fi Streaming Amplifier:** Enjoy high-resolution streaming over Wi-Fi from Spotify, TIDAL, Apple Music, and more, with full support for AirPlay 2, Chromecast, and Alexa.
-   **Powerful 150W Output:** The WiiM AMP Ultra delivers up to 150W per channel, giving the Klipsch speakers the headroom they need for dynamic and impactful sound.
-   **HDMI eARC Connectivity:** Connect directly to your TV for effortless integration into your home entertainment system with synchronised audio.
-   **Voice Assistant Ready:** Use Alexa, Google Assistant, or Siri for hands-free control of music playback and smart home integration.
-   **Compact Bookshelf Design:** The Klipsch R-40M’s slim profile makes them easy to place on shelves, desks, or stands, while still delivering room-filling sound.
-   **Legendary Klipsch Sound:** With a 4" spun-copper woofer and horn-loaded tweeter, the R-40M speakers provide crisp highs, natural vocals, and tight bass.
-   **Versatile Use:** Ideal for music, movies, and gaming, this bundle can serve as a dedicated stereo system or as part of a wider home audio setup.

This bundle is a perfect choice for anyone looking to combine the smart features of modern streaming with the engaging sound of classic hi-fi speakers.

###### What You Get

**AMPLIFIER**

-   1 x Amplifier
-   1 x Power Lead
-   1 x RCA Cable
-   1 x Optical Cable
-   1 x HDMI Cable
-   1 x Remote Control
-   4 x Banana Plugs
-   1 x User Manual

**SPEAKERS**

-   2 x R-40M Speakers
-   2 x Grilles
-   1 x User Manual

###### Specifications

AMPLIFIER

-   **Network Connectivity:** Wi-Fi&Ethernet
-   **Amplifier Class:** D
-   **Power Output (4Ω):** 200W
-   **Power Output (8Ω):** 100W
-   **Frequency Response:** 20Hz – 20kHz ± 0.5dB
-   **Channel Separation:** 2
-   **Damping Factor:** 94
-   **Signal To Noise Ratio:** ≥120dB
-   **THD:** 0.08%
-   **THD +N:** ≤0.005%
-   **Output Impedance:** 2–8Ω
-   **RCA Input(s):** 1
-   **Bluetooth Input:** Yes
-   **Bluetooth Version:** 5.3
-   **HDMI Input(s):** ARC Input
-   **Optical Input(s):** 1 (24-bit, 192kHz)
-   **DAC Chip:** ES9039Q2M
-   **Digital Output(s):** USB
-   **Subwoofer Output(s):** RCA Mono
-   **Enclosure Material:** Aluminium
-   **Dimensions (W × H × D):** 20.0 × 21.1 × 76mm
-   **Weight:** 2.45kg

SPEAKERS

-   **Frequency Response ± 3dB:** 71 - 21000 Hz
-   **Speaker Sensitivity (@ 2.83V / 1M):** 91 dB
-   **Power Handling:** 50 / 200 W
-   **Speaker Impedance:** 8 Ω
-   **Crossover Frequency:** 1770 Hz
-   **High-Frequency Driver:** 1"Aluminium LTS Tweeter
-   **High-Frequency Driver Horn:** 90 x 90 Square Tractrix Horn
-   **Low-Range Driver:** 4"Spun Copper TCP Woofer
-   **Enclosure Type:** Bass Reflex
-   **Speaker Inputs:** Single Pair Binding Posts
-   **Enclosure Material:** MDF
-   **Dimensions (W x H x D):** 146 x 298 x 216 mm
-   **Weight:** 3.2 kg
-   **Warranty:** 2 Years

## Details

- **Price:** 699.0 GBP
- **Vendor:** WiiM / Klipsch
- **Type:** HiFi Systems
- **Tags:** BLACK5, Bundle, Free HiFi Wiring Kit, Prime, SALE5

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Space Grey | 699.00 GBP | In stock |
| Silver | 699.00 GBP | In stock |

## Images

- WiiM AMP Ultra Wi-Fi Amplifier + Klipsch R-40M 4" Bookshelf Speakers - K&B Audio
- WiiM AMP Ultra Wi-Fi Amplifier + Klipsch R-40M 4" Bookshelf Speakers - K&B Audio
- WiiM AMP Ultra Wi-Fi Amplifier + Klipsch R-40M 4" Bookshelf Speakers - K&B Audio
- WiiM AMP Ultra Wi-Fi Amplifier + Klipsch R-40M 4" Bookshelf Speakers - K&B Audio
- WiiM AMP Ultra Wi-Fi Amplifier + Klipsch R-40M 4" Bookshelf Speakers - K&B Audio
- WiiM AMP Ultra Wi-Fi Amplifier + Klipsch R-40M 4" Bookshelf Speakers - K&B Audio
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> Source: [K&B Audio](https://www.kbaudio.co.uk/products/wiim-amp-ultra-wi-fi-amplifier-klipsch-r-40m-4-bookshelf-speakers)
> Updated: 2026-05-25