At the core of the WiiM Amp Ultra streaming amplifier is the superior sound is its advanced Post-Filter Feedback (PFFB) technology, a cutting-edge refinement system that minimizes distortion, enhances clarity, and ensures consistent sound quality across different speaker loads. Unlike traditional amplifiers that suffer from load-dependent performance variations, PFFB dynamically compensates for these inconsistencies, delivering a more accurate, balanced, and natural sound signature. The result? A wider soundstage, richer details, and an immersive listening experience that faithfully reproduces every note with precision and depth.

A vivid 3.5″ glass touchscreen puts album art, VU meters, and one-tap controls front and centre — making input switching, setting tweaks, and playback navigation effortless, with instant visual feedback.

Every room is different—WiiM Amp Ultra adapts. Using built-in acoustic measurement and correction, it tunes your setup to match your environment, optimizing for speaker type, distance, and room acoustics.

Wiim are constantly improving their product range, with regular OTA firmware updates, the Wiim Amp Ultra only gets better over time—with new features, streaming services, and optimisations.

WiiM Amp Ultra supports most passive speakers with an impedance between 2–8 ohms. It can power bookshelf, tower, in-wall, or outdoor speakers—up to four in total (two pairs in parallel at 4Ω).

The Line-In input enables you to connect your analogue sources such as turntables (with built-in or external phono stage), CD players, or cassette decks.

You can stream from Spotify, TIDAL, Qobuz, Amazon Music, Deezer, Pandora, TuneIn, SoundCloud, iHeartRadio, and more via the WiiM Home App or your favourite casting protocol.

Features
Multi-Room Audio with WiiM, Google Home, and Alexa systems
Home Theatre Mode with HDMI ARC and Dolby Digital support
Smart Presets & Alarm Clock to simplify your routine
Voice Control via Alexa, Google Assistant, or the included WiiM Voice Remote
Power Output (THD = 0.08%, two channels driven): 100 W per channel @ 8Ω, 200 W per channel @ 4Ω
Amplifier Technology: Class-D with PFFB (Post-Filter Feedback) technology
Total Harmonic Distortion (THD+N): ≤0.005%, -106 dB (A-weighted)
Signal-to-Noise Ratio (SNR): ≥120dB
Damping Factor: 94
Frequency Response:  20Hz – 20kHz ± 0.5dB
Impedance Range:  2 – 8Ω
Premium Audio Components: ESS 9039Q2M high-performance DAC, Dual TI TPA3255 Amps, TI OPA1612 op-amps for ultra-low distortion and rich, detailed sound.
Bit-Perfect Playback: Supports up to 192kHz/24-bit audio
Dynamic Range: ≥120dB for high-resolution sound
Analogue Inputs: 1x RCA Stereo: Connects to external audio sources like CD players or PCs
Digital Inputs: 1x Optical (TOSLINK) – Up to 192kHz/24-bit, HDMI ARC: Receives audio from TVs, PCM up to 192kHz/24-bit, and Dolby Digital 5.1 formats
Speaker Outputs: Gold-plated binding posts (supports banana plugs or bare wire connections)
USB Audio Output: Supports up to 8-channel 24-bit/192kHz; UAC 2.0 compliant
Sub Output: Dedicated output for powered subwoofers (RCA Mono)
Wireless Connectivity: Bluetooth 5.3: Supports A2DP receiver and transmitter, AVRCP, HID, and works with the WiiM voice remote Wi-Fi 6 (Upgradeable to Wi-Fi 6E): Ensures stable and high-speed wireless streaming
Wired Network: Ethernet (100Mbps): Standard RJ45 port
Input-Specific EQ: Independent settings for Wi-Fi, HDMI ARC, Optical, Bluetooth, Line-In
EQ Tools: 24 Preset EQ Profiles, 10-Band Graphic & Parametric EQ, Built-in Room Correction with mic-guided acoustic tuning
Streaming Protocols: WiiM Home App, Google Cast, Spotify Connect, TIDAL Connect, DLNA, LMS, Roon Ready (Certification Pending)
Multi-Room Audio: Compatible with WiiM, Google Home, and Alexa multi-room systems
Home Theatre Mode: Functions as front, centre, or surround channel in a Dolby 5.1 setup via HDMI ARC
Smart Presets: Quick access to favourite playlists, sources, or routines
Alarm Clock: Configurable time, repeat schedule, and music source
Screen: 3.5” glass-covered capacitive touchscreen
Screen Functions: Playback controls, album art, EQ adjustment, input switching, Queue view, preset access, VU meters, time/date in standby, Custom wallpapers and onboarding setup (OOBE), Supports firmware updates directly via screen
Physical Controls: Multifunctional rotary knob (Volume, Play/Pause)
Thermal Management: Copper heat pipe, large aluminium heatsink, unibody aluminium case, and precision PID thermal control
Cooling System: Passive, silent operation
Dimensions (W x D x H) mm: 200 x 211 x 76.2
Weight: 2.45Kg