FiiO BTR25 ESS Portable Bluetooth DAC and Headphone Amplifier
The FiiO BTR25 ESS is a compact flagship-level portable DAC and amplifier that bridges high-resolution wired listening with advanced wireless convenience. Built around a premium ESS ES9069Q DAC and dual ES9603Q amplifiers, it delivers clean, dynamic, and highly resolving sound through both 3.5mm single-ended and 4.4mm balanced outputs. With Qualcomm’s latest QCC3095 chipset enabling Bluetooth 6.2, aptX Lossless, LDAC, and LE Audio support, the BTR25 offers versatile three-mode operation, a vibrant 1.3-inch color display, and up to 11 hours of battery life in a precision CNC-machined aluminum chassis.
Flagship ESS DAC and Dual Amplifier Architecture
At the core of the BTR25 sits the high-performance ESS ES9069Q DAC paired with dual ES9603Q headphone amplifiers in a fully differential design. This combination produces exceptionally low distortion, excellent detail retrieval, and powerful output up to 460mW per channel into 32Ω (and higher into lower impedances) through the 4.4mm balanced output. The result is natural timbre, wide dynamics, and effortless drive for both sensitive IEMs and more demanding headphones.
Advanced Qualcomm Bluetooth 6.2 Connectivity
Powered by the Qualcomm QCC3095 chipset, the BTR25 supports the latest Bluetooth 6.2 standard along with premium codecs including aptX Lossless, LDAC, LE Audio, aptX Adaptive, and Snapdragon Sound. Dual audio DSPs ensure stable, low-latency wireless transmission with excellent audio-video synchronization, delivering near-wired sound quality in a truly portable form factor.
Three Intelligent Operating Modes
A dedicated three-position switch allows seamless switching between PC, Bluetooth, and Phone modes. This flexible architecture lets users optimize power delivery and connectivity depending on the source—whether using the device as a USB DAC with a computer, a Bluetooth receiver, or a portable amp for smartphones—while maintaining consistent high-fidelity performance across all scenarios.
High-Resolution USB Decoding
Equipped with the high-performance SPV5048 USB chipset, the BTR25 supports high-resolution USB audio up to 32-bit/384kHz PCM and native DSD256. This makes it an excellent desktop or mobile DAC solution that preserves full resolution when connected via USB-C.
Interactive 10-Band Parametric EQ
Through the FiiO Control app and web interface, users gain access to a fully interactive 10-band parametric equalizer. This allows precise sound customization across Bluetooth and USB modes, enabling fine-tuning of bass, midrange presence, treble extension, or overall frequency response to match specific headphones or personal preference.
1.3-Inch Color IPS Display and Intuitive Controls
A crisp 1.3-inch colorful IPS display provides clear real-time information including track details in Bluetooth mode, battery status, volume level, and current operating mode. Physical buttons and a tactile volume knob offer precise, lag-free control without relying solely on a smartphone app.
Detachable Magnetic Clip and Premium Build
Housed in a CNC-machined aluminum alloy chassis, the BTR25 combines solid construction with elegant design. A detachable magnetic clip allows secure attachment to clothing or bags for true on-the-go use, while the compact form factor remains comfortable for both portable and desktop applications.
Long Battery Life
An efficient power management system delivers up to 11 hours of continuous playback, ensuring all-day listening without frequent recharging. The device supports convenient USB-C charging and maintains stable performance throughout the battery cycle.
About FiiO
FiiO is a well-established high-fidelity audio brand specializing in portable and desktop digital audio products. Known for combining advanced chipsets, practical engineering, and competitive pricing, FiiO has earned a strong global reputation among audiophiles for delivering reliable performance and innovative features across its DAC, amplifier, and player lineup.
Technical Specifications
DAC: ESS ES9069Q
Amplifiers: Dual ES9603Q
Bluetooth Chip: Qualcomm QCC3095
Bluetooth Version: 6.2
Supported Codecs: aptX Lossless, LDAC, LE Audio, aptX Adaptive, aptX HD, AAC, SBC
USB Decoding: PCM up to 32-bit/384kHz, Native DSD256
Headphone Outputs: 3.5mm single-ended, 4.4mm balanced
Balanced Output Power: Up to 460mW + 460mW (32Ω)
Display: 1.3-inch color IPS
Battery Life: Up to 11 hours
Chassis: CNC-machined aluminum alloy
Additional Features: 10-band PEQ, detachable magnetic clip, three operating modes (PC / BT / Phone)
Q&A
What DAC and amplifier chips does the FiiO BTR25 use?
It features an ESS ES9069Q DAC paired with dual ES9603Q headphone amplifiers.
Does the BTR25 support aptX Lossless and LDAC?
Yes, it supports aptX Lossless, LDAC, LE Audio, and other high-quality codecs via the Qualcomm QCC3095 chipset.
What are the three operating modes?
The device offers PC mode, Bluetooth mode, and Phone mode, switchable via a physical toggle for optimized performance with different sources.
What is the maximum output power?
It delivers up to 460mW per channel into 32Ω through the 4.4mm balanced output.
Does the BTR25 have a display?
Yes, it includes a 1.3-inch colorful IPS display that shows track information, battery status, and other key data.
What is the battery life of the BTR25?
It offers up to 11 hours of continuous playback under typical conditions.
