Description

Upgrade your everyday wired listening with the AUDIOCULAR Note-S, a compact Type-C to 3.5mm portable DAC and headphone amplifier powered by the KT0231H USB audio codec and dedicated MAX97220 Class-G headphone amplifier. The KT0231H supports high-resolution PCM audio playback up to 384kHz/32-bit, while its differential DAC output works directly with the fully differential input of the MAX97220 for an efficient and refined audio signal path.

The dedicated MAX97220 amplifier provides significantly more headphone-driving capability than relying on the USB codec alone, delivering up to 125mW per channel into 32Ω with a 5V supply. With an amplifier SNR of 112.5dB, THD+N as low as 0.0021%, capacitor-less output architecture and click-pop suppression, Note-S is designed to provide clean and controlled wired audio from a highly compact form factor.

The KT0231H also integrates 6-band EQ, noise suppression, UAC 1.0/UAC 2.0 support and microphone ADC functionality, adding versatile DSP and USB audio capabilities for compatible devices. Note-S further supports My Audiocular, allowing users to access 6-band EQ, multi-band PEQ Editor, Auto PEQ, Adaptive Sound Test, AI-powered sound recommendations, Device Dashboard and custom presets through the supported web app and Android app for greater sound personalization and control.

Compatible with supported smartphones, tablets, laptops and computers, Note-S makes it easy to connect your favourite 3.5mm IEMs, earphones or compatible headphones and enjoy high-resolution wired audio, powerful amplification and advanced sound customization wherever you listen.

AUDIOCULAR Note-S delivers higher power and hi-res audio with its KT0231H DAC and dedicated MAX97220 amplifier, while CrinEar Protocol Micro offers a simpler solution for everyday wired listening.

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KT0231H 384KHZ/32-BIT USB AUDIO DAC

Powered by the KT0231H USB audio codec, Note-S supports stereo PCM audio decoding up to 384kHz/32-bit. The dedicated USB DAC architecture delivers detailed digital-to-analog conversion for music, movies, gaming and everyday listening from compatible USB-C devices.

MAX97220 CLASS-G DEDICATED HEADPHONE AMPLIFIER

Note-S combines the KT0231H DAC with a dedicated MAX97220 Class-G stereo headphone amplifier instead of relying solely on the codec's output stage. This dedicated amplification architecture provides greater driving capability and controlled output for compatible IEMs, earphones and headphones.



UP TO 125MW/CHANNEL OUTPUT AT 32Ω

The MAX97220 amplifier is capable of delivering up to 125mW per channel into a 32Ω load with a 5V supply, providing substantial power from a compact Type-C DAC dongle for portable audio applications.

LOW-NOISE DIFFERENTIAL AUDIO ARCHITECTURE

The KT0231H differential DAC output connects directly to the fully differential MAX97220 amplifier input, creating an efficient audio signal path. The KT0231H DAC offers a 103dB SNR, while the MAX97220 amplifier provides up to 112.5dB SNR for clean and detailed playback.

MY AUDIOCULAR APP WITH EQ, PEQ & AI SOUND PERSONALIZATION

Connect AUDIOCULAR Note-S with My Audiocular for advanced sound tuning and personalized listening. Access 6-band EQ, multi-band PEQ Editor, Auto PEQ, Adaptive Sound Test, AI-powered sound recommendations, Device Dashboard, and custom presets through the supported web app and Android app, giving you greater control over the sound of your compatible headphones and IEMs.

USB AUDIO CLASS 1.0 & 2.0 COMPATIBILITY

With support for USB Audio Class 1.0 and UAC 2.0, Note-S is designed for convenient digital audio connectivity across compatible USB-C smartphones, tablets, laptops and computers. Its compact USB-powered design means there is no separate battery to charge.



Specifications

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DAC Sampling Rate
Up to 384kHz / 32-bit
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SNR
103dB
🎚️
THD+N
-85dB
⚙️
Amp Architecture
MAX97220
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Material
Metal, Plastic
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Compatible Device
Smartphone, Tablet
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USB Connection
UAC 1.0 / UAC 2.0
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Available Colours
Silver, Black
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Headphone Amplifier
112dB

Box Content

1x AUDIOCULAR Note-S Portable DAC & Amp

1x AUDIOCULAR Note-S Portable DAC & Amp

1 YEAR WARRANTY

Don't worry, AUDIOCULAR - Note-S KT0231H + MAX97220 Type-C to 3.5mm Portable DAC & Amp comes with a 1 Year warranty against manufacturing defects. We guarantee that every product on Concept Kart is genuine and backed by the Manufacturer's warranty.

Read more about Concept Kart's warranty policy.

Shipping Policy

FREE SHIPPING ON ALL ORDERS

At Concept Kart, we offer FREE standard shipping on all orders across India. Orders placed before 2 PM are usually dispatched on the same working day, while orders placed after 2 PM are dispatched on the next working day (excluding Sundays and public holidays) from our Delhi warehouse.

Delivery usually takes 1–2 business days in Delhi, the next working day in metro cities, and 2–7 business days in other locations after dispatch. We use trusted courier partners, including BlueDart and Delhivery, and share tracking details via email or WhatsApp. For prepaid orders, OTP verification is required at delivery for added security. Share the OTP only after receiving your package.

COD is available for orders between ₹1,500 and ₹10,000, with cash handling charges of ₹50 (up to 1 kg) and ₹100 (above 1 kg), displayed at checkout.

Delivery may be delayed due to festivals, extreme weather, floods, protests, or courier disruptions. Pre-orders follow the estimated timelines mentioned on their product pages.

For shipping or delivery assistance, contact customercare@conceptkart.com with your order number.