S3 Pro Reviews
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【HIDIZS S3 PRO】最高にコンパクトで気軽なポータブルDAC
今回はスマホやPCに直接挿すだけで高音質な音楽を楽しめるポータブルハイレゾDACドングルの紹介になります。

Tiny DAC! Hidizs S3 Pro Review
The Hidizs S3 Pro DAC dongle is tiny and comes with MQA support out of the box.

Hidizs S3 Pro DAC AMP Quick Look
Hidizs S3 Pro review

【HIDIZS S3 PRO】超コンパクト。高音質とUXのバランスに優れた小型DACアダプタ。
小型のDACアダプタも各メーカーから様々なものが出て、TWS全盛の世の中ではまだまだオーディオマニア向けの道具という感じは否めませんが、ジャンルとして整ってきましたね。
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Hidizs S3 PRO Review - iiWi Reviews
Hidizs S3 Pro - Is it as good as S9 Pro?

Pros: - Great 8X MQA Unfolding- Polished ESS tuning by Hidizs- Sparkly and vibrant timbreCons: - Power limited up to 100 Ohm for full dynamics- Runs slightly warm on max resolutions
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Comparison | ||
Model | S9 PRO PLUS | S9 PRO |
Product Type | Split Style | Split Style |
DAC Chip | ESS9038Q2M | ESS9038Q2M |
Headphone Jack | 3.5mm+4.4mm | 3.5mm+2.5mm |
Physical Button | 2 | 0 |
Sampling Rate Indicator Light | 6 | 6 |
RGB LED Light | × | × |
MQA | × | × |
PCM 32bit/192kHz | √ | √ |
PCM 32bit/384kHz | √ | √ |
PCM 32bit/768kHz | √ | √ |
DSD 64 | √ | √ |
DSD 128 | √ | √ |
DSD 256 | √ | √ |
DSD 512 | √ | √ |
ASIO | √ | √ |
PC Drive | √ | √ |
Switching Filter | √ | × |
SNR | 3.5mm PO:123dB(@32Ω) 4.4mm BAL:120dB(@32Ω) | 3.5mm PO:120dB(@32Ω) 2.5mm BAL:119dB(@32Ω) |
Channel Separation | 3.5mm PO:75dB(@32Ω) 4.4mm BAL:115dB(@32Ω) | 3.5mm PO:80dB(@32Ω) 2.5mm BAL:118dB(@32Ω) |
THD+N | 3.5mm:0.0019%@32Ω 4.4mm:0.0008%@32Ω | 3.5mm:0.0006%@32Ω 2.5mm:0.0012%@32Ω |
Output Power | 3.5mm PO:138mW@32Ω 4.4mm BAL:180mW@32Ω | 3.5mm PO:100mW@32Ω 2.5mm BAL:200mW@32Ω |
Frequency Response | 20Hz-40kHz | 20Hz-50kHz |
Recommended Earphone Resistance Range | 8-300Ω | |
Headphone with mic | Compatible | Compatible |
Transmission interface | Type-C | Type-C |
Power System | No need to charge. Plug and play | No need to charge. Plug and play |
Shell Material | Aluminum alloy | Aluminum alloy |
Color | Black, Silver, Blue | Black, Silver |
Dimensions | 55×25×11mm | 59×18×8mm |
Net weight | 17g | 11g |
Supported System | Android, Windows, Mac OS, iPad OS, Harmony OS (Please note: a Lightning to Type-C cable with OTG function has to be purchased separately to support iOS) | Windows, Mac OS, iPad OS, Android, iOS (Please note: For iOS users, the Lightning OTG cable has to be purchased separately) |
What's in the box | Hidizs S9 PRO PLUS x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 User manual x 1 Warranty card x 1 | Hidizs S9 PRO DAC & AMP x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 Rear clip x 1 User manual x 1 Warranty card x 1 |
Comparison | ||
Model | S9 PRO PLUS | S9 PRO |
Product Type | Split Style | Split Style |
DAC Chip | ESS9038Q2M | ESS9038Q2M |
Headphone Jack | 3.5mm+4.4mm | 3.5mm+2.5mm |
Physical Button | 2 | 0 |
RGB LED Light | × | × |
MQA | × | × |
PCM 32bit/192kHz | √ | √ |
PCM 32bit/384kHz | √ | √ |
PCM 32bit/768kHz | √ | √ |
DSD 64 | √ | √ |
DSD 128 | √ | √ |
DSD 256 | √ | √ |
DSD 512 | √ | √ |
ASIO | √ | √ |
PC Drive | √ | √ |
Switching Filter | √ | × |
SNR | 3.5mm PO:123dB(@32Ω) 4.4mm BAL:120dB(@32Ω) | 3.5mm PO:120dB(@32Ω) 2.5mm BAL:119dB(@32Ω) |
Channel Separation | 3.5mm PO:75dB(@32Ω) 4.4mm BAL:115dB(@32Ω) | 3.5mm PO:80dB(@32Ω) 2.5mm BAL:118dB(@32Ω) |
THD+N | 3.5mm:0.0019%@32Ω 4.4mm:0.0008%@32Ω | 3.5mm:0.0006%@32Ω 2.5mm:0.0012%@32Ω |
Output Power | 3.5mm PO:138mW@32Ω 4.4mm BAL:180mW@32Ω | 3.5mm PO:100mW@32Ω 2.5mm BAL:200mW@32Ω |
Frequency Response | 20Hz-40kHz | 20Hz-50kHz |
Headphone with mic | Compatible | Compatible |
Transmission interface | Type-C | Type-C |
Power System | No need to charge. Plug and play | No need to charge. Plug and play |
Shell Material | Aluminum alloy | Aluminum alloy |
Color | Black, Silver, Blue | Black, Silver |
Dimensions | 55×25×11mm | 59×18×8mm |
Net weight | 17g | 11g |
Supported System | Android, Windows, Mac OS, iPad OS, Harmony OS (Please note: a Lightning to Type-C cable with OTG function has to be purchased separately to support iOS) | Windows, Mac OS, iPad OS, Android, iOS (Please note: For iOS users, the Lightning OTG cable has to be purchased separately) |
What's in the box | Hidizs S9 PRO PLUS x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 User manual x 1 Warranty card x 1 | Hidizs S9 PRO DAC & AMP x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 Rear clip x 1 User manual x 1 Warranty card x 1 |
Comparison | ||
Model | S9 PRO PLUS | S9 PRO |
Product Type | Split Style | Split Style |
DAC Chip | ESS9038Q2M | ESS9038Q2M |
Headphone Jack | 3.5mm+4.4mm | 3.5mm+2.5mm |
Physical Button | 2 | 0 |
RGB LED Light | × | × |
MQA | × | × |
PCM 32bit/192kHz | √ | √ |
PCM 32bit/384kHz | √ | √ |
PCM 32bit/768kHz | √ | √ |
DSD 64 | √ | √ |
DSD 128 | √ | √ |
DSD 256 | √ | √ |
DSD 512 | √ | √ |
ASIO | √ | √ |
PC Drive | √ | √ |
Switching Filter | √ | × |
SNR | 3.5mm PO:123dB(@32Ω) 4.4mm BAL:120dB(@32Ω) | 3.5mm PO:120dB(@32Ω) 2.5mm BAL:119dB(@32Ω) |
Channel Separation | 3.5mm PO:75dB(@32Ω) 4.4mm BAL:115dB(@32Ω) | 3.5mm PO:80dB(@32Ω) 2.5mm BAL:118dB(@32Ω) |
THD+N | 3.5mm:0.0019%@32Ω 4.4mm:0.0008%@32Ω | 3.5mm:0.0006%@32Ω 2.5mm:0.0012%@32Ω |
Output Power | 3.5mm PO:138mW@32Ω 4.4mm BAL:180mW@32Ω | 3.5mm PO:100mW@32Ω 2.5mm BAL:200mW@32Ω |
Frequency Response | 20Hz-40kHz | 20Hz-50kHz |
Headphone with mic | Compatible | Compatible |
Transmission interface | Type-C | Type-C |
Power System | No need to charge. Plug and play | No need to charge. Plug and play |
Shell Material | Aluminum alloy | Aluminum alloy |
Color | Black, Silver, Blue | Black, Silver |
Dimensions | 55×25×11mm | 59×18×8mm |
Net weight | 17g | 11g |
Supported System | Android, Windows, Mac OS, iPad OS, Harmony OS (Please note: a Lightning to Type-C cable with OTG function has to be purchased separately to support iOS) | Windows, Mac OS, iPad OS, Android, iOS (Please note: For iOS users, the Lightning OTG cable has to be purchased separately) |
Packing List | Hidizs S9 PRO PLUS x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 User manual x 1 Warranty card x 1 | Hidizs S9 PRO DAC & AMP x 1 Type-C to Type-C cable x 1 Type-C to USB-A adapter x 1 Rear clip x 1 User manual x 1 Warranty card x 1 |