ultimateimp – HiBy has launched the W4 portable HiFi headphone amplifier with support for high-resolution audio playback. The compact device works with both Bluetooth wireless headphones and wired models. It is designed to enhance sound quality across a wide range of listening setups.
The W4 supports Bluetooth 5.4 connectivity for wireless audio transmission. Compatible codecs include aptX Adaptive, aptX HD, aptX Lossless, LDAC, AAC, and SBC. This combination enables compatibility with both standard and high-resolution streaming formats.
For wired connections, the amplifier connects to digital audio sources using USB-C. Supported devices include smartphones, laptops, and dedicated digital audio players. In wired mode, the W4 supports DSD512 and PCM audio up to 768 kHz.
The unit features both 4.4 mm balanced and 3.5 mm unbalanced headphone outputs. Balanced output is typically associated with improved channel separation and reduced interference. This dual-output configuration supports a broad selection of headphones.
According to HiBy, the built-in 1,500 mAh battery delivers up to 5.0 hours of playback with balanced headphones. When using unbalanced headphones, battery life increases to approximately 6.3 hours. Actual runtime may vary depending on volume levels and usage conditions.
Users can control playback and settings through physical volume buttons and a control dial. A 2-inch color touchscreen provides access to additional configuration options. The interface allows on-device adjustments without relying solely on a connected smartphone.
Compact Design, MagSafe Mounting, and $99 Retail Price
The HiBy W4 is engineered for portability and flexible mounting. It measures 66.15 by 65.1 by 21.5 millimeters. The amplifier weighs 93.3 grams, making it suitable for mobile use.
An optional magnetic kit allows attachment to MagSafe-compatible smartphones. The device also includes a removable clip for securing it to bags or clothing. These options support different on-the-go listening preferences.
The compact size enables easy storage in pockets or small pouches. Despite its dimensions, the W4 integrates both wireless and wired high-resolution capabilities. This versatility targets users seeking flexibility between formats.
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HiBy has set the manufacturer’s suggested retail price at $99. The W4 is available directly through the company’s official sales channels.
The feature set positions the W4 as an affordable entry into portable high-resolution amplification. Support for advanced codecs and balanced output expands its compatibility. Availability begins immediately through authorized retailers.
At this price point, HiBy targets users seeking a noticeable upgrade from basic audio adapters. The compact design makes the W4 easy to carry for daily use. Touchscreen controls simplify operation, while broad codec support ensures smooth pairing across devices. This combination allows the W4 to appeal to both newcomers and more experienced listeners looking for value-focused audio gear.
