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100W of pure hi-fi power with a vibrant 3.5″ touchscreen for smart, seamless control

Designed to stand out and fit in, the Amp Ultra features a sleek unibody aluminum chassis and a vibrant 3.5″ glass-covered touchscreen. Easily control playback, switch sources, view album art, and more—all at your fingertips.

At the core of the WiiM Amp Ultra’s 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.


| Dimensions and Weight | |
| Dimensions: | 7.87 x 8.3 x 3 inches (200 x 211 x 76.2 mm) |
| Weight: | 5.4 lbs (2.45 kg) |
| Audio Performance | |
| 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 |
| Impedence Range: | 2 – 8Ω |
| Audio Processing | |
| 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 |
| Input & Output Options | |
| Analog 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 & Network Connectivity | |
| 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 |
| EQ & Sound Customization | |
| 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 & Smart Features | |
| Streaming Protocols: | WiiM Home App Chromecast Audio Spotify Connect TIDAL Connect DLNA, LMS Roon Ready (Certification Pending) |
| Multi-Room Audio: | Compatible with WiiM, Google Home, and Alexa multi-room systems |
| Stereo Pairing: | Supports L/R speaker setup for enhanced stereo imaging |
| Home Theater Mode: | Functions as front, center, or surround channel in a Dolby 5.1 setup via HDMI ARC |
| Smart Presets: | Quick access to favorite playlists, sources, or routines |
| Alarm Clock: | Configurable time, repeat schedule, and music source |
| Touch Display | |
| Screen: | 3.5” glass-covered capacitive touchscreen |
| 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 |
| Design & Controls | |
| Chassis: | Precision-machined unibody aluminum for durability & heat dissipation |
| Dimensions: | 7.9” x 2.9” x 7.9” (200 x 75 x 200 mm) |
| Weight: | 5.4 lbs (2.45 kg) |
| Physical Controls: | Multifunctional rotary knob (Volume, Play/Pause) |
| Thermal Management: | Copper heat pipe, large aluminum heatsink, unibody aluminum case, and precision PID thermal control |
| Cooling System: | Passive, silent operation |
| Package Contents | User Guide *1 Power Cable *1 RCA Cable *1 Optical Cable *1 HDMI Cable *1 Remote 2 *1 Banana Plugs *4 |
