FiiO BTR17 Flagship Bluetooth Headphone Amplifier

The FiiO BTR17 is FiiO’s flagship Bluetooth DAC and headphone amplifier, a master of all trades that packs years of FiiO DAC and amplifier experience into a pocket-sized body. A Qualcomm QCC5181 brings Bluetooth 5.4 with LDAC and aptX Lossless, two ESS ES9069Q DACs and four-channel THX AAA 78+ amplifiers deliver up to 650mW per channel in desktop mode, and over USB a 16-core XMOS XU316 makes it a high-end wired DAC. It won a VGP 2025 Summer Gold Award, Headfonics’ Best Wireless Streamer 2024, TechPowerUp’s Editor’s Choice and a CIHE EHA 2024 Silver Award.

Qualcomm QCC5181: a new era of lossless Bluetooth

Qualcomm’s flagship QCC5181 meets the Bluetooth LE Audio standard, has 2.1Mbps of transmission bandwidth and supports lossless quality within aptX Adaptive (aptX Lossless), bringing CD-level lossless sound to Bluetooth. With Bluetooth 5.4, LDAC and aptX Adaptive at 96kHz/24-bit and Snapdragon Sound, the BTR17 receives AAC, SBC, aptX, aptX HD, aptX Adaptive, aptX Lossless and LDAC.

Dual ES9069Q DACs

Two ESS ES9069Q DACs, built on the fourth-generation 32-bit HyperStream architecture, reach 130dB dynamic range and −120dB THD+N while using little power, further reducing digital noise for a richer, more musical sound against a cleaner background.

THX AAA 78+: up to 650mW

The same THX AAA 78+ amplifier as FiiO’s KA17 and M23 runs in a four-channel fully balanced design with eight op-amps in parallel, for robust, controlled power and a clear, natural sound. With USB power on the POWER IN port and desktop mode on, four op-amps work in parallel for current amplification: up to 650mW + 650mW balanced, 203% more than the BTR7 and comparable to desktop headphone amplifiers (300mW balanced and 140mW single-ended on battery).

Patented desktop mode and a three-way power switch

A dedicated D.Mode switch and power port let you run the BTR17 from an external supply (patent ZL202321946664.8). Used as a dongle with a phone, it then draws power from the supply rather than your phone, and the battery is neither overcharged nor over-discharged. A PC/BT/PHONE switch sets how it draws power: PC (powered entirely by the computer), BT (internal battery, charging over USB) or PHONE (the battery helps, so it takes less from your phone).

A multi-stage hi-fi architecture

Inside is signal processing comparable to premium music players: dual clocks for the digital audio and DAC, low-pass preamplification and multi-stage analogue processing that restore detail and dynamics. A three-stage, three-rail power supply (filtering and over-voltage protection, DC-DC boost, then high-precision LDO regulation) gives the digital, conversion and analogue sections their own rails, plus more than ten smaller rails. Temperature and DC-output detection protect the BTR17 and your headphones, and a volume limit protects your hearing.

XMOS XU316 USB and a 10-band PEQ

Over USB, the flagship 16-core XMOS XU316 gives lower latency, more stable transmission and better compatibility than typical USB chips, with PCM up to 768kHz/32-bit, native DSD512 and full MQA decoding. Its computing power also runs a high-definition 10-band PEQ up to 192kHz, which you can set in the FiiO Control app or FiiO’s web tool, adjusting frequency, gain, bandwidth and Q, and importing, exporting and sharing curves; a side key switches EQ. A UAC 1.0 mode plugs straight into a Nintendo Switch, PS5 and more.

A knob, a colour screen and real leather

The pressable volume knob, with a double-sided 3D-engraved design, is tested for more than 50,000 presses and 40,000 rotations; it also plays and pauses, handles calls, enters menus and reconnects Bluetooth. The 1.3-inch IPS colour screen’s text changes colour with the format, and shows PQ, HQ, SQ or HR quality levels in Bluetooth mode. The 3D aluminium alloy body has a fully bonded leather back and a two-section front for a comfortable grip. A microphone handles calls in Bluetooth mode, and the 3.5mm output supports CTIA in-line controls.

Good to know

• The leatherette case is included; FiiO’s MagClip magnetic kit (sold separately) holds it securely to a phone.
• The 8-strand USB-C cable uses 6 monocrystalline copper strands for power and 2 silver-plated monocrystalline strands for data.
• For a smaller, lighter Bluetooth DAC/amp, see the FiiO BTR15.
• In the box: BTR17, leatherette case, short USB-C cable, PET film (fitted), quick start guide and warranty card.