On-the-Go Portability and Engaging Sound Quality: Thin, Lightweight Acoustic Research AR-M20 Hi-Res Music Player Features Headphone Amplifier, 16-Hour Battery, and DSD128 Support
Thin is in with the Acoustic Research AR-M20 hi-res music player with integrated headphone amplifier. Weighing just 6.3 ounces and measuring a nearly unnoticeable 2.76 x 5.35 x 0.44 inches, AR-M20 supports up to DSD128 and includes 32GB of internal memory that can be expanded up to 200GB via its Micro-SD XC slot. Most importantly, the wireless-enabled AR-M20 plays music with intoxicating levels of detail, tonality, and transparency. Unique to AR-M20, a second-generation Acoustic Research M-class audio engine acts as the master clock, allowing the CPU to operate as the slave component to the sound – thereby enhancing accuracy and nearly ridding jitter from the equation. A Qualcomm Snapdragon quad-core processor, dual crystal oscillators, linear power supply, high-grade Burr-Brown DAC, and powerful Class AB headphone amplifier do the rest of the heavy lifting. Want to listen on-the-go for hours on end? No problem. Its rechargeable battery lasts for up to 16 hours. A defeatable equalizer, bass boost, and 3D effect also come standard – as does a five-inch color touchscreen display for intuitive control and stellar reproduction of album art. Never leave home without audiophile-caliber tunes again!
"And having opened up the canvas between your ears, it finishes the job by filling each corner of it with fine and insightful detail, so you're agreeably coerced into paying as much attention to the vocalists' quirky delivery as to the plentiful instrumental textures surrounding them."
– What Hi-Fi?, four-star review