Radsone, short for Radical Sound, is a full stack audio company with a vision to make everyone enjoy high-quality sound easier than before. As music is an essential ingredient to life, music that deeply moves one’s heart should be delivered with quality.
We provide affordable and accessible solutions including DCT (Distinctive Clear Technology) and DualDrive to anyone who desires high-quality sound. Radsone is a pioneer in the high-quality Bluetooth market, and we have received global attention since we officially registered our IP solution on Qualcomm’s CSR chip.
Our best-experienced engineering team has in-depth knowledge and capability on DSP (Digital Signal Processing), achieving inventions of optimal system design, circuit design as well as patented DCT algorithm. Radsone’s DCT, which solves fundamental digital audio problems has been applied to millions of top-notch products including Audio-Technica, LG, and Astell&Kern, etc.
EarStudio
EarStudio is the world’s first and only 24bit Bluetooth receiver designed to deliver studio-quality sound through your ears WIRELESS - using your existing wired headphones, earphones or even speakers.
EarStudio places the most focus on the sound quality along with convenience and affordability. We use CSR 8675 Qualcomm Chip and 2x DACs of AK4375a.
Noise free, jitter free.
To brief you through the journey of EarStudio’s operation, EarStudio reproduces the sound over Bluetooth into 88.2KHz/24Bit through Radsone’s patented DCT technology which reduces subtle digital noise and cleans the jitter from Bluetooth streaming.
Dual DACs with analog volume control
EarStudio has optimized circuit architecture, proprietary DualDrive technology, using 2 independent Hi-Fi DACs and Amplifiers. Unlike other dual DAC audio systems, the fully differential audio signal path directly goes to the output jack, with NO switch components in the way, delivering pure signal without any loss or distortion, and with enough power. Moreover, 2 selectable operating modes support 2x current or 2x voltage, as needed by depending on the type of connected headphones. Then, we took a further step for details by adopting an analog volume control. Digital volume adjustment has the downside because it scales down PCM audio sample before the D/A conversion, resulting in harsh sound and the loss in sound detail, SNR, as well as THD. EarStudio offers analog volume control to keep the optimal audio performance even at low volume level using Programmable Gain Amplifier (PGA) which is the best way to control the volume.
Full Balanced and single ended output
EarStudio offers two outputs: A single-ended/double current 3.5mm jack and full-balanced/double voltage 2.5mm Jack.
EarStudio supports the Qualcomm aptX HD codec, which allows you to receive 48KHz/24bit audio via Bluetooth. What’s even more special about it is that it will reproduce 24bit sound from any music streaming through over 16bit codec such as SBC, aptX or AAC. The magic behind it is Radsone's patented technology called DCT which big names in the industry(LG, Audio Technica, Astell&Kern etc) have adopted in their latest products.
503 InnoValley E Bldg., 255, Pangyo-ro, Bundang-gu, Seongnam-si, South Korea
Sales Manager
Julia Choi
823180187334
823180187330
julia@radsone.com
503 InnoValley E Bldg., 255, Pangyo-ro, Bundang-gu, Seongnam-si, South Korea
Sales Manager
Julia Choi
823180187334
823180187330
julia@radsone.com
Official Website
Kickstarter Link (official launching on June 2017)