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WiiM has quickly established itself as a leader in affordable, high-performance streaming amplifiers. The original WiiM Amp has become a go-to choice for music lovers seeking simplicity, power, and versatility in a compact device. Now, with the release of the WiiM Amp Pro, users are wondering: what are the real differences? Is the Pro version worth the upgrade?
In this detailed comparison, we break down the key distinctions between both models across performance, features, sound quality, and value.
1. DAC (Digital-to-Analog Converter): Heart of the Sound
WiiM Amp: Features the ESS Sabre ES9018K2M, a respected mid-high tier DAC known for low noise and excellent channel separation.
WiiM Amp Pro: Upgrades to the ESS Sabre ES9038Q2M, one of the top-tier portable DACs with ultra-low THD+N, superior SNR (>129 dB), and native decoding of PCM up to 32-bit/768kHz and DSD256.
Verdict: Clear win for the Amp Pro in resolution, dynamics, and detail.
2. Amplification & PFFB Technology
Both amps use Class D amplification for high efficiency, but the Pro introduces:
Post Filter Feedback (PFFB): Measures the output signal after the low-pass filter and feeds it back to the amplifier stage for better distortion control and frequency response.
Result: Lower harmonic distortion (THD+N < 0.0005%) and improved linearity, especially with demanding speakers.
3. Power Output
Identical rated output:
60 W per channel @ 8Ω
120 W per channel @ 4Ω
However, the Amp Pro delivers better dynamic control and less compression at higher volumes thanks to its advanced circuitry.
4. Connectivity
Both models offer:
HDMI ARC
Optical and RCA analog inputs
Subwoofer out with adjustable crossover
USB port (FAT32/NTFS)
Wi-Fi & Ethernet
Bluetooth (Amp Pro uses Bluetooth 5.3 for lower latency and better efficiency)
Key differences:
WiiM Amp supports AirPlay 2. Ideal for Apple users.
WiiM Amp Pro is Roon Ready, perfect for audiophiles using the Roon ecosystem.
5. Streaming Services
Both support:
Spotify Connect
TIDAL Connect (including MQA)
Qobuz, Amazon Music HD, Deezer
Chromecast built-in
DLNA/UPnP
Voice control via Alexa and Google Assistant
Amp Pro offers enhanced network stability due to upgraded shielding and better internal network architecture.
6. Build Quality & Physical Design
Amp Pro features improved thermal design with enhanced ventilation, higher chassis weight, and more robust connectors.
Better structural damping and power supply robustness in the Pro model.
7. Control & User Experience
Both use the intuitive WiiM Home app (iOS & Android), offering EQ, streaming control, and multi-room configuration.
Amp Pro's remote features better tactile feedback and upgraded materials.
8. Multiroom Compatibility
Both integrate seamlessly with WiiM multiroom systems.
The Amp Pro, thanks to Roon Ready certification, also supports advanced multi-zone audio systems in high-end setups.
9. Measurements & Lab Testing
AudioScienceReview:
WiiM Amp: SINAD 92 dB, THD < 0.003% @ 5W/8Ω
WiiM Amp Pro: SINAD 100+ dB, THD < 0.0005% @ 5W/8Ω
What Hi-Fi:
Amp Pro offers better bass articulation, deeper soundstage, and more accurate imaging.
10. Price & Value
The Amp Pro justifies the price bump with measurable improvements in audio performance, construction, and Roon integration. However, if AirPlay 2 is a priority or you're on a tighter budget, the standard model remains an excellent choice.
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Final Recommendation
The WiiM Amp Pro is a true upgrade in every technical sense—more refined DAC, advanced amplifier design, better build quality, and Roon compatibility. It’s ideal for users who prioritize sound fidelity, high-res streaming, and future-proof features.
On the other hand, the WiiM Amp is still a fantastic solution for most users, especially Apple ecosystem fans or those looking for great value without sacrificing core performance.
Frequently Asked Questions (FAQ)
Which model offers better sound quality?
WiiM Amp Pro delivers superior sound thanks to its flagship DAC and advanced amplifier topology.
Does either support AirPlay 2?
Only the standard WiiM Amp supports AirPlay 2.
Can both be controlled by voice?
Yes, both support Alexa and Google Assistant.
Is Roon supported?
Only the WiiM Amp Pro is Roon Ready.
Are both equally powerful?
Yes, both deliver the same output, but the Pro handles dynamic peaks and distortion better.
Best option for multiroom audio?
Both are great, but the Amp Pro adds better stability and Roon integration.
Is the price difference justified?
For critical listeners and advanced users—absolutely. For general use, the standard Amp is still very compelling.
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