FiiO BTR5 Balanced High-Fidelity Bluetooth Amp [b-Stock]


b-Stock unit, very good/excellent conditions, with original box, accessories, 2 year warranty

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89,34 €

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Brand: FiiO


BTR5 Portable Hi-Fidelity High-Power High-Quality Bluetooth Amplifier

FiiO, a china based brand famous worldwide for their powerful DAP's, amazing sounding IEM's and other audio products, they have released the latest iteration of their portable Bluetooth amplifier, the BTR series.

  • High-Performance Dual DAC setup, featuring ES9218P DAC chip
  • Dual Output ports,3.5mm standard and 2.5mm balanced output
  • Bluetooth 5.0 supporting all the Bluetooth formats, like apt-X,apt-X HD, apt-X LL, LDAC, AAC and many more
  • Native DSD decoding
  • Control Chip XMOS XUF208
  • Flagship Bluetooth chip from Qualcomm, the CSR8675
  • OLED Display
  • Detachable back clip
  • 550mAh battery offering 9 hours of battery life
  • Built-In NFC
  • Also works as USB DAC for PC/Mac/Linux/iOS/Android

Dual DAC Setup for Neat Sound Quality

The FiiO BTR5 comes equipped with dual DAC setup, featuring two powerful sabre DAC's ES9218P, which reproduces sound precisely and neatly.
Dual DAC's working together gives out a powerful output of 220mW at 32ohms load and 7.6Vpp at 300 ohms.

The DAC's ensure that there is no noise in your music and the sound output is amplified properly with great power.

Dual Headphone Output Slots

The BTR 5 has two slots for your headphones, one 3.5mm single-ended and one 2.5mm balanced output ports, where each channel is driven separately from the other with its own DAC and amplifier.

Both the headphone slots give purer clearer sound experience with ultimate details.

Flagship Bluetooth Chip

The BTR 5 is equipped with flagship-level Bluetooth chip from Qualcomm the CSR8675, which supports Bluetooth 5.0 and supports a lag-free Bluetooth experience.

FiiO BTR5 features all the bluetooth formats ranging from AAC,aptX,aptX HD,aptX LL,LDAC and more.

Longer Battery For Longer Music Sessions

The FiiO BTR 5 features a battery of 550mAh, which provides continous music playback of upto 9 hours, and even if that is not enough for you the BTR 5 just need 1.5 hours of charging time to fully charge.

FPGA and Dual Active Crystal Oscillators

FPGA, along with the help of dual active audio crystal oscillators, greatly improves the sound quality, making it noise and jitter-free with providing a stable connection.

OLED Display to Show All Details

The FiiO BTR5 features a 0.49 inch OLED display which displays pairing mode, Connection status, call status, power status, encoding format, and volume, which you can also use to view charging status, adjust or change EQ setting, enable car mode and more.

Dual Mic with cVc 8.0 Noise Cancellation

The FiiO BTR5 has an omnidirectional microphone with cVc 8.0 noise cancellation which adjusts the microphone's gain and suppresses the background noise which makes call quality crisp and clear.

One-Touch NFC Connection

The BTR5 offers one-touch NFC connection which makes it very easier to connect to NFC enabled devices.

Strong and Ergonomic Build

The BTR5 is built strongly with aluminum alloy body, which is paired with a curved glass on the front and backside, making the device smooth and tough.
The Device looks brilliant and has a strong build quality.

One Button to control the Device

The BTR5 has a one multi-function button that does all the functions like, play/pause/pairing/accept call/reject call/hangup/open voice assistant.

Support with FiiO Music App

You can download FiiO Music App and remotely control different functions in the BTR5 like switching between different low pass filters, changing EQ setting and many more.

Updates in Fiio BTR5 compared to BTR3 

1. Update from Bluetooth 4.2 to Bluetooth 5.0 

BTR5 with BlueTooth 5.0 offers a more stable connection at twice speed and four times of range of Bluetooth 4.2. This increase in range, plus the ability to transmit audio to two devices, means that people could send audio to multiple rooms in a house, create a stereo effect in one space, or share audio between two sets of headphones. 

2. Update battery capacity from 300mAh to 500mAh

The 300 mAh battery in the BTR3 takes only 1.5 hours to fully charge but the 500mAh battery in BTR5 takes 2 hours using quick charging.  

3. Update DAC chip from AK4376A to Dual ES9218

Comparing with AK4376A DAC in the BTR3,  Dual DAC ES9218  in  BTR5  offers high resolution, clear and powerful output with low output impedance, while being very power efficient. This change not only has the signal-to-noise ratio (SNR) increased, but distortion has also been reduced for greatly improved sound quality. 

4.  Fiio BTR5 Weighs a little more

BTR5 size is 72*32*11.3  while BTR3 size is 58*25*10.4mm. Because of increased battery capacity, the weight of BTR5 is increased to 43.7g from 25g but it is still very convenient to take out. 

Technical specifications



Color Available



 About 43.7 gincl. battery


About 72×32×11.1mm (exclusive of back clip)

Audio Input

 Bluetooth connection (Bluetooth 5.0 supported)

Supported Audio Format(s)

AAC/SBC/aptX/aptX LL/ aptX HD/LDAC



Mic Function

Support Bluetooth call, built-in omnidirectional microphone; support external microphone of CTIA cable

Headphone Output

3.5 mm stereo jack

USB Port

Type C USB

Balanced Headphone Output

2.5mm jack

Drive Ability



Channel Balance

≤0.1 dB



Volume Control

Side buttons

Status indication

Display indicates the Bluetooth code, charging, battery, volume, sampling rate, menu

APP interconnection

Supports setting through App

Bluetooth Codes Display


Charging Time

≤1.5 h (DC 5V 500mA)

Power Input

Recommend DC 5V 500mA

Battery Capacity

550 mAh



Output Power

PO about 80mW32Ω loaded

Frequency Response

20Hz20kHz (aptX connection

PO about 90mW16Ω loaded

BAL about 240mW32Ω loaded

20Hz40kHz (LDAC connection

BAL about 240mW16Ω loaded


PO0.003%(LDAC 1kHz A-weighted)

Output Impedance

PO≤1.0Ω32Ω loaded

BAL0.002%(LDAC 1kHz A-weighted)

BAL≤2.0Ω32Ω loaded

Noise Floor

PO≤2uV A-weighted


PO1.6V32Ω /THD+N1%

PO:  1.8V (no loaded)

BAL≤2.2uV A-weighted

BAL: 2.8V32Ω /THD+N1%

BAL: 3.6V(no loaded)


PO≥118dB (32Ω  A-weighted)


PO≥ 79dB1kHz 32Ω loaded


PO≥ 95dB1kHz no loaded

BAL≥122dB(32Ω  A-weighted)

BAL≥ 118dB1kHz 32Ω loaded

BAL≥119dB1kHz no loaded

Sampling Rate Supported Up to

384kHz/32bitUSB DAC 

DSD Support (USB IN)


Chips Used

DAC: ES9218PC * 2 , USB: XMOS XUF208 , Bluetooth CSR8675 


Type C USB charging cable*1, Quick Start Guide*1, Warranty Card*1,Back Clip*1

 Battery Life & Test Conditions (The test result is based on specified test conditions and just for referrence)


Battery Life

About 9h 

Bluetooth Transmitter

iPhone AAC

Connected Headphones

M3 open earbuds27Ω


With set output at 40mV

Test File

Click here to download



A ´B-Stock´ is a product which has been returned by a customer within their 14/30 Day Money Back Guarantee.

These items are offered at a special, reduced price. Please note, that occasionally the packaging is no longer in pristine condition.

B-Stock products are in full working order and are checked by specialists before releasing them as B-Stock. They come with the full 2 year warranty as any other new product.

Any special comments about a B-Stock product will be noted at the beginning of the article description.


FiiO logo

About FiiO Electronics Technology Co., Ltd.

01 Brand Introduction - HiFi+Fashion

FiiO Electronics Technology Co., Ltd. was established in 2007.  It is a high-tech enterprise that combines research, development, production and sales, and its sales are mainly based on its own FiiO brand as opposed to OEM/ODM.  It focuses on digital audio, with current mainstay products being portable headphone amplifiers, DAC / amps and portable digital audio players.

FiiO: It is composed of Fi (Fidelity) from HiFi and iO (represents number 1 and 0) which indicates the sincerer feeling and more convenient life the digital tech has brought to us.

飞傲: The Chinese transliteration of FiiO, as well as representing youthful vigor and the active & innovative spirit of the company.

Audio products are meant to fulfill the spiritual pleasure of users.

  1. FiiO provides products and service related to music.
  2. We also hope to bring happiness to our users with the provided products and service, which is also the key value of FiiO.

Customer Service

  1. Good after-sales service, more reliable
  2. Great user experience, more pleasure
  3. Variety of activities, more involved

About products

  1. Affordable: FiiO products are well-known for its feature of high cost-performance. Lowering the entry level to make more customers can afford.
  2. Easy to use: FiiO pays great attention to the user experience. We are not only provide products with high quality, but also easy to use and with long lasting durability.
  3. More accessories bring more fun: Enable to play in a variety way and use under more possible environments.
  4. Updates available: Equipped with a variety of ports, it makes the music players can still connect to external amp/DAC for upgraded enjoyment.
  5. Endless transformability available: With replaceable amp module and expandable storage, the X7 can bring more playability.

02 Company Profile

Research & Development Team

  • Twenty years of R&D experience in audio products
  • Former core R&D team for audio products from OPPO
  • A team of 20 professional R&D engineers in software, hardware, industrial design, structure and electro-acoustic.

Research & Development Investment

FiiO keeps bringing in advanced equipments and high-tech talents so as to ensure the stable growth and long term competitive edge. Up till now, the team size has expanded three times than that of 2007 when we established.

Team Composition

The R&D team is made up of development dep, engineering dep and QC dep, with 60+engineers in total.

Authorized certifications

FC, CE, KC, CCC and ISO9001:2008 ensure the safety and quality of the products.

Production management

FiiO has strict requirements to production with almost “zero tolerance” even to small problems, which is strictly in compliance with the International Quality Management System ISO9001. 

QC Equipment 

  • a. AP audio analyzer (valued at 200,000RMB).
  • b. Life-span test platform against high & low temperature, swing and plug & unplug trial.
  • Aging test carriage towards mass production.
  • Aging test machine under high & low temperature.

Customer oriented

Driven by customers’ needs, we innovate constantly and response promptly to the market changes. We develop new products based on customers’ needs and compete for more market shares.

Company culture - Our Vision

Present the world a better “Made in China”.

Brand Spirit

  • Innovation

the earliest company that designed the minimum volume headphone amplifier. First dockable amp & DAC product. First amp specially designed for iPod/iPhone. First amp with adjustable power supply and power supplied by mobile phone battery. First multifunctional headphone amp & DAC for Android smarphone. First Hi-Res music player at a price lower than 1000RMB supporting 192K music. First Android-based Hi-res music player. 

  • Quality

Repair Rate < 1%. Sound Quality Control system. Original components imported from TI, Wolfson, Maxim. Company-wide quality control. +20 quality engineers and inspectors. Complete testing facilities. 

  • Service

CEO at the frontline of customer service. 100% response to enquiries. The most popular headphone amplifier brand on Head-Fi. First class website and contents in the audio industry. Interaction with and support to customers on Facebook and Microblog (twitter-like social website).

Brand Mission

FiiO designs, produces and sells high-quality products at favorable prices to those who love music and style.

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FiiO BTR5 Balanced High-Fidelity Bluetooth Amp [b-Stock]

b-Stock unit, very good/excellent conditions, with original box, accessories, 2 year warranty

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