Khadas Tea Pro Portable Headphone Amplifier
Most portable DAC dongles compromise. They give you better sound than your phone's built in output but run out of power when you connect anything more demanding than lightweight earbuds. The Khadas Tea Pro sits in the gap between a basic dongle and a desktop amplifier, delivering enough power and quality to drive serious headphones from a device that fits in your pocket.
The core is a dual Cirrus Logic CS43198 DAC architecture running in mono mode, one chip per channel. This eliminates crosstalk between left and right channels and delivers cleaner separation than single chip designs can achieve. The result is a wider, more precise soundstage where individual instruments and voices occupy distinct positions rather than blending together. PCM decoding reaches 32 bit 384kHz. DSD native playback hits DSD256. Full MQA 16x rendering unfolds MQA encoded tracks to their highest available resolution.
Output power reaches 2000mW into 32 ohms through the 4.4mm balanced connection, which is substantial for a portable unit. A 3.5mm single ended output handles lighter loads. The amplifier section is built around a discrete Class AB topology rather than the integrated op amp designs common in portable units, delivering lower distortion and a more natural, analog character to the sound. THD+N sits at 0.00032% at 1kHz, a number that competes with desktop units costing significantly more.
The volume control is a 128 step digital system providing precise adjustment without channel imbalance at low levels, a problem that plagues analog potentiometers in portable devices. Four gain settings cover everything from sensitive IEMs to power hungry over ear headphones. A hardware bass boost adds low end presence without muddying the mids.
Build quality matches the internal spec. CNC machined aluminum housing with a 1.54 inch IPS display showing real time audio format, sample rate, volume level, and battery status. A 3000mAh battery delivers approximately 9 hours of balanced playback. USB C handles both charging and digital audio input. Bluetooth 5.1 with LDAC, aptX HD, aptX Adaptive, and AAC covers wireless connectivity when a cable isn't practical.
The Tea Pro works as a USB DAC with phones, laptops, and tablets, and as a Bluetooth receiver for wireless sources. It drives headphones that most portable solutions cannot handle properly, which is the entire reason it exists.
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