Qudelix-5K Bluetooth DAC AMP with LDAC, Dual ES9219, 2.5mm Balanced + 3.5mm Unbalanced

Elevate your wired listening with a compact, high‑res companion

The Qudelix-5K is a small, feature‑rich Bluetooth DAC/AMP designed to pair with wired headphones and earphones. It blends a dual ES9219 DAC architecture with modern wireless codecs, offering a portable upgrade for seasonal commutes, travel, and desk setups. Expect clearer details, richer textures, and more control over your sound, without committing to a fixed listening profile.

What you get in the sound pipeline

• Dual ES9219 HiFi DACs deliver precise stereo separation and a wide dynamic range across both outputs.
• 2.5mm balanced output delivers higher power (4V RMS) for select headphones, while the 3.5mm unbalanced output serves a broad range of wired cans (2V RMS).
• Qualcomm QCC5124 Bluetooth chipset supports HFP/HSP/A2DP/AVRCP with LDAC, aptX Adaptive, aptX HD, and AAC for versatile wireless streaming.
• USB DAC/USB-C input paired with 96kHz/24bit playback and an embedded double‑precision EQ for on‑the‑fly sound shaping.

Power, portability, and materials

• A compact 500mAh Li‑Po battery aims for long sessions, with an estimated 6–20 hours of streaming depending on use and codecs.
• The body blends a plastic finish with UV anti‑scratch coating (black) and an aluminium clip (dark gray) for a durable, lightweight feel.
• Dimensions are tight at 52.8 mm H x 26.7 mm W x 15.6 mm D (including clip), with a total weight around 25 g for easy pocketability.

Important usage note

The Qudelix-5K is a Bluetooth receiver designed to work with wired headphones or earphones. It does not function with Bluetooth headphones since it is not a Bluetooth transmitter.

Why it can matter to you

Consider how a compact, high‑fidelity module could fit into your daily routine. You might enjoy richer textures for late‑night listening on wired cans, or appreciate the ability to switch between balanced and unbalanced outputs depending on your setup. The embedded EQ and broad codec support open up possibilities for tailoring sound to personal taste or different genres, without altering your existing headphones.

If you value portability with real‑world flexibility—whether commuting, traveling, or desk‑bound listening—the Qudelix‑5K aims to offer a practical path to enhanced wired audio, augmented by wireless convenience.

Key capabilities at a glance

• High‑resolution playback: 96kHz/24bit via Bluetooth and USB.
• Two output options: 2.5mm balanced for higher drive and 3.5mm unbalanced for broad compatibility.
• Broad codec support: LDAC, aptX Adaptive, aptX HD, AAC for flexible wireless pairing.
• Embedded equalizer for on‑device tonal shaping without external apps.