WIIM PRO+ AK4493SEQ Audio Streamer Bit-Perfect DAC AK4493SEQ

WIIM PRO+ AK4493SEQAudio Streamer Bit-Perfect DAC AK4493SEQWiFi AirPlay 2 DLNA Chromecast Multiroom Bluetooth 5.0 24bit 192kHz
With the WiiM Pro+ you can stream your music directly from the Spotify Connect and Tidal Connect streaming services, without using the WiiM Home application.
Value proposition

Simple system
Direct to your AMP or powered speaker without external DAC.
Audio quality is comparable with WiiM Pro connected to the external DAC.(up to $300 price).

Compatibility
Resolve compatibility issues with some (low-end) DACs that don’t handle the clock, variable sample rate/bit depth properly, or don’t support up to 24-bit/192kHz digital input.

Better audio quality for analog input
The better audio quality for analog input sources.

Cost Effective
Save the external DAC and cable costs.
The WiiM Pro Plus was a significant upgrade in terms of audio quality for analog audio input and output, total system cost, and system setup. These enhancements aimed to provide users with a more powerful, high-fidelity, and hassle-free music streaming experience compared to the previous model, the WiiM Pro.

What are the differences between the WiiM Pro and the WiiM Pro Plus
Better ADC for Line Input
It uses TI Burr-Brown Audio PCM1861 ADC, achieving up to 192kHz/32-bit digital output, 110 dB SNR. Thus, it provides high-fidelity analog to digital conversion for input from a record player, MP3 player, or TV.

Ultra-low Noise Clock, Power, and Circuit Design
It uses an ultra-low noise clock, power supply, and careful PCB layout to achieve less than –110dB THD+N performance for analog audio output.

AKM DAC and TI OP AMP for Better Line-Out Audio Quality
It features a new generation AKM 4493SEQ premium DAC that is able to achieve a leading level of low distortion and wide dynamic range thanks to AKM’s Velvet Sound Technology. It supports up to 768 kHz PCM, and DSD512, with PCM/DSD automatic switching ideal for the latest high-resolution audio source. Achieve 120 dB (A-wt) SNR, THD+N of 0.00032% (-110 dB) from 44.1k to 192k.

Line-out performance
SNR： 120dB (A-wt)
THD+N(1 kHz)： 0.00032% (-110 dB) for 44.1k to 192k
FR curve： +/-0.05dB
FR Curve
SNR

Offering more streaming services and audio content that incorporate MP3 quality, lossless audio, or immersive sound technologies for their listeners. WiiM devices provide the capability to play Hi-Res lossless audio contents from Spotify, Amazon Music, TIDAL, Deezer, Qobuz and more. It supports up to 192kHz, 24-bit audio output which is the same as artist’s recording in the studio . The integrated TI stereo DAC provides the high quality analog audio output with the 106-dB SNR, dynamic range and -92dB THD+N performance, outstanding in all audio categories.

MP3
High Quality
320 Kbps

CD(HI-FI)
Lossless Quality
1411 Kbps

HI-RES
High-Res Quality  
2304-9216 Kbps

Multiroom and stereo pairing
Playing music in your whole house is achieved with the perfect audio synchronization and seamless device control via the companion App . With careful hardware, algorithm and software optimization, we can achieve less than 150uS (0.00015s) synchronization accuracy among speakers as long as the speakers are in the same wireless network. Thus, your speaker system can be located wherever your Wi-Fi network covers.
In addition, you can join two speakers connected with WiiM Pro or Mini as a stereo pair for a wider, more immersive sound stage. It also supports multi-room and for the various audio inputs such as Wi-Fi based streaming music, BT and analog/digital audio input via Line In or optical in. Thus, it can work with most of your music listening options.
Gapless Playback
Precise gapless playback is important to your listening experience. With precise gapless playback, the playback timing is guaranteed to be identical to the source. It’s not allowed to introduce gaps or overlaps (crossfading) between successive tracks. The gap will be very noticeable in ” continous ” music such as live concert recording, some classical music etc.
Various software, firmware and hardware components may add up to a substantial delay associated with starting playback of track. Our player uses two decoders to remove the extra samples at the beginning and end of each file, and combine them. It works for all the supported music services and music in your phone or local network
Gap

Gapless


Adaptive EQ
Breakthrough listening experience requires both high-res audio contents and high quality playback device . When adaptive EQ is enabled, the music genre information and other tags included in the audio content are used to adjust the frequency in real time -either bringing rich audio to capture every music detail or making human voices clearer in the podcast.
Auto calibration of audio delay
The connected receiver or speaker may have different audio path latency due to different hardware, software and DSP processing. To maintain the synchronization of each system, it’s desirable to measure the audio path delay automatically. By leveraging the on-device microphone and proprietary algorithm, the entire audio path latency is measured automatically when it’s connected with the receiver or speaker. The latency value will be used to maintain the perfect audio synchronization in wireless multi-room playback with HomePod, Echo, Google Home or other WiiM devices.
 
 
WiiM Pro Plus

Dimensions and Weight

         Pro Weight：330g (11.6 oz)
Pro Plus Weight：400g (14.1 oz)
Audio Input
1 x Analog RCA Line input
1 Vrms
48kHz/24-bit
SNR 91dB
1 x SPDIF in Optical, up to 192kHz/24-bit
1 x Analog RCA Line input
2 Vrms
192 kHz/24-bit
SNR 106dB
1 x SPDIF in Optical, up to 192kHz/24-bit
Network
802.11 b/g/n/ac 2.4 GHz and 5 GHz dual bands Wi-Fi
Bluetooth
Bluetooth 5.1
Digital Audio Output
Bit-perfect output, up to 192 kHz, 24-bit with digital optical or coaxial output.
Audio Codec
MP3, AAC, ALAC, APE, FLAC, WAV, WMA, OGG
Protocol
AirPlay 2, Chromecast Audio, DLNA, Spotify Connect, TIDAL Connect, Amazon Music Casting, Qplay 2.0, Roon
Streaming Services in App
Spotify, Amazon Music, Deezer, Tunein, Tidal, Qobuz, SoundCloud, Pandora, iHeartRadio, vTuner, Napster, Sound machine, etc.
Power Input
USB Type-C, requires 5V, 1.5A or higher
Bundled adapter: 5V, 2A
LED