
The Story
The AUDIOCULAR Note Hi-Res Portable DAC Dongle is a next-generation digital-to-analogue converter and headphone amplifier engineered for audiophiles who demand uncompromised sound quality on the go. Built around the KT02H20 high-performance DAC chipset paired with the OPA97220 precision headphone amplifier, the NOTE delivers true high-resolution audio with exceptional clarity, dynamic range, and ultra-low distortion.
Featuring dual headphone outputs—4.4mm balanced and 3.5mm single-ended— it provides impressive driving power for both sensitive IEMs and demanding full-size headphones. With PCM decoding up to 32-bit/384kHz, it reproduces music with studio-grade detail, accurate imaging, and a clean, natural sound signature ideal for critical listening.
Designed for universal plug-and-play compatibility, the NOTE works seamlessly with Android, iOS, Windows, macOS, and HarmonyOS without requiring drivers. Its refined audio circuitry, optimized power management, and ultra-low THD+N performance ensure a distortion-free listening experience with a 100dB signal-to-noise ratio and -90dB crosstalk suppression (balanced).
With support for the My AUDIOCULAR App, users get access to 5-band PEQ and a built-in community preset ecosystem for sharing and discovering custom sound tunings.
Crafted from a premium all-aluminum alloy chassis, the NOTE combines durability, heat dissipation, and a sleek minimalist finish in a compact and highly portable form factor—perfect for everyday audiophile listening anywhere, anytime.
Specifications
| Brand | AUDIOCULAR |
|---|---|
| Model Name | Note |
| Product Type | Hi-Res Portable DAC Dongle |
| DAC Chipset | KT02H20 |
| Amplifier Chipset | OPA97220 |
| Headphone Output | 3.5mm Single-Ended / 4.4mm Balanced |
| Input | USB-C |
| Protocol | USB Audio Class 2.0 (UAC2.0) |
| Sampling Rate | Up to 32-bit / 384 kHz PCM |
| Output Power | 105mW @ 32Ω (both outputs) |
| Output Voltage | 1.15–1.35V RMS |
| THD+N | –75dB (4.4 & 3.5mm) |
| SNR | 100dB |
| Dynamic Range | 95dB |
| Crosstalk Suppression | –90dB (4.4mm) / –55dB (3.5mm) |
| Frequency Response | 20Hz–20kHz (±3dB) |
| Recommended Impedance | 16–100Ω |
| Operating Voltage | 4.75–5.25V DC |
| Current Consumption | 35mA standby / 90–110mA active |
| Connector Type | USB-C Male |
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Note: In-line buttons controllers won’t work with this product.Â

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
The AUDIOCULAR Note Hi-Res Portable DAC Dongle is a next-generation digital-to-analogue converter and headphone amplifier engineered for audiophiles who demand uncompromised sound quality on the go. Built around the KT02H20 high-performance DAC chipset paired with the OPA97220 precision headphone amplifier, the NOTE delivers true high-resolution audio with exceptional clarity, dynamic range, and ultra-low distortion.
Featuring dual headphone outputs—4.4mm balanced and 3.5mm single-ended— it provides impressive driving power for both sensitive IEMs and demanding full-size headphones. With PCM decoding up to 32-bit/384kHz, it reproduces music with studio-grade detail, accurate imaging, and a clean, natural sound signature ideal for critical listening.
Designed for universal plug-and-play compatibility, the NOTE works seamlessly with Android, iOS, Windows, macOS, and HarmonyOS without requiring drivers. Its refined audio circuitry, optimized power management, and ultra-low THD+N performance ensure a distortion-free listening experience with a 100dB signal-to-noise ratio and -90dB crosstalk suppression (balanced).
With support for the My AUDIOCULAR App, users get access to 5-band PEQ and a built-in community preset ecosystem for sharing and discovering custom sound tunings.
Crafted from a premium all-aluminum alloy chassis, the NOTE combines durability, heat dissipation, and a sleek minimalist finish in a compact and highly portable form factor—perfect for everyday audiophile listening anywhere, anytime.
Specifications
| Brand | AUDIOCULAR |
|---|---|
| Model Name | Note |
| Product Type | Hi-Res Portable DAC Dongle |
| DAC Chipset | KT02H20 |
| Amplifier Chipset | OPA97220 |
| Headphone Output | 3.5mm Single-Ended / 4.4mm Balanced |
| Input | USB-C |
| Protocol | USB Audio Class 2.0 (UAC2.0) |
| Sampling Rate | Up to 32-bit / 384 kHz PCM |
| Output Power | 105mW @ 32Ω (both outputs) |
| Output Voltage | 1.15–1.35V RMS |
| THD+N | –75dB (4.4 & 3.5mm) |
| SNR | 100dB |
| Dynamic Range | 95dB |
| Crosstalk Suppression | –90dB (4.4mm) / –55dB (3.5mm) |
| Frequency Response | 20Hz–20kHz (±3dB) |
| Recommended Impedance | 16–100Ω |
| Operating Voltage | 4.75–5.25V DC |
| Current Consumption | 35mA standby / 90–110mA active |
| Connector Type | USB-C Male |
Â
Note: In-line buttons controllers won’t work with this product.Â



















