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    FiiO BTR3K Bluetooth AMP+DAC - Open Box

    Captivating you through your fingers

    The aluminum alloy body wrapped elegantly in an arc of 2.5D glass like that used in the latest smartphones, the oleophobic coating that keeps off fingerprints, the high contrast black lettering and the smooth texture give the compact BTR3K an elegant look that would not be out of place in a specialty

    artisan's shop.

    Now with balanced and SE output

    Building off of what made the BTR3 so good, the BTR3K implements balanced output. It is a truly balanced design, with a DAC and amplifier carefully paired for the left and right channels each, for the purest sound possible.

    Robust, Full-Bodied Sound High Performance AK4377A

    With two high-performance AK4377A DACs, the power output has increased by 50% compared to the AK4376 used in the BTR3 as well as greatly improved measurements and actual sound.

    Independent Dual Crystal Oscillators for Accurate Audio Reproduction

    The dual crystal oscillator system in the BTR5 also comes to the BTR3K! The 22.5792M/24.576 MHz dual crystal oscillators mean that during Bluetooth and USB decoding, the BTR3K can more accurately reproduce audio signals under various sampling rates – due to greatly reduced jitter and greatly increased audio stability.

    A Robust Inner Core Qualcomm CSR8675

    The Qualcomm CSR8675 Bluetooth chip used in the BTR3K is a premium low-power solution designed for enhanced audio applications, with a 120 MHz DSP, support for 24-bit transmission and processing as well as abilities to decode multiple lossless Bluetooth codecs. No matter whether you watching videos, listening to music, or enjoying your favorite game, this chip will ensure you get excellent sound quality.

    Speedy Bluetooth Connection

    The BTR3K upgrades to Bluetooth 5.0, which means faster pairing and more stable signal strength for a better overall experience. It fully supports AAC/SBC/aptX/aptX LL/aptX HD/LDAC audio formats that you'll get the best sound quality possible from the BTR3K.

    An Extremely Useful Little Light

    With so many Bluetooth formats being used in various places, the RGB light indicator quickly tells you which format is currently being utilized.

    Listen and Charge With Type-C

    You can listen while charging with the USB Type-C connector.

    As a matter of fact, the BTR3K takes only 1.5 hours to fully charge but allows for a lengthy 11 hours of playback!

    Crystal-Clear Calls Free of Noise

    The built-in amplifier in the BTR3k not only ensures your music sounds good, but that your calls do too. To further enhance your calling experience the BTR3k is not only equipped with omni-directional microphone and phone controls, it is also equipped with the eight generation Qualcomm cVc noise cancellation technology, which effectively suppresses background noise so that your call comes through as clear and audible as possible.

    Flexibility Specialist Adapts to Various Kinds of Wired Headphones

    The BTR3K can automatically tell what kind of headphones you plugged into it and adjusts its output accordingly. And when you plug in headphones with CTIA controls, you can use the microphone as well as the play/pause, volume, and track selection controls.

    Great Connection Convenience Supports Pairing to 2 Devices Simultaneously

    The BTR3K can be paired with and remember up to two Bluetooth devices at once, allowing for even more convenience. Simply use whichever device you want to pair the BTR3K anytime without hassle!

    Quick and Convenient Volume Control

    When you connect the BTR3K to your Bluetooth device, the device's volume and the BTR3k's volume can be adjusted separately, allowing you to better fine-tune the volume to your needs. The BTR3K also remembers your desired volume, so you don't have to adjust the volume to where you want it every time you use the device.

    Give A Holler When You Need Help

    Simply use the BTR3K to call up your smartphone's assistant without even having to pull it out.

    Intelligently Puts Your Music At Your Fingertips

    When your device is connected to the BTR3K and is using the FiiO Music app to play music, the BTR3K can be remotely controlled with the following functions.

    Free to Go With You Wherever

    You should be able to take your music with you wherever. The BTR3K comes with a symmetrical, detachable rear clip that allows you to easily carry it around.

     

    Specifications

     

    Weight

     About 23.5 g(incl. battery)

    Dimensions

    About 58×25×11mm (exclusive of back clip)

    Audio Input

     Bluetooth connection (Bluetooth 5.0 supported)

    Supported Audio Format(s)

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

    Headphone Output

    3.5 mm stereo jack

    Mic Function

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

    Balanced Headphone Output

    2.5mm jack

    USB Port

    Type C USB

    Channel Balance

     ≤0.1 dB

    Drive Ability

    16~100Ω(PO)

    Volume Control

    Side buttons

    16~100Ω(BAL)

    APP interconnection

    Supports setting through App

    Status Indicator Light

    RGB light indicates the input Bluetooth audio codec,
    charging and working status

    Charging Time

    ≤1.5 h (DC 5V 500mA)

    Bluetooth Codes Display

    Supported

    Battery Capacity

    330 mAh

    Power Input

    Recommend DC 5V 500mA

    Output Power

    PO about 25mW(32Ω loaded)

    Frequency Response

    20Hz~20kHz (aptX connection)

    PO about 50mW(16Ω loaded)

    BAL about 78mW(32Ω loaded)

    20Hz~40kHz (LDAC connection)

    BAL about 40mW(16Ω loaded)

    THD+N

    PO<0.003%(LDAC 1kHz A-weighted)

    Output Impedance

    PO≤0.3Ω(32Ω loaded)

    BAL<0.002%(LDAC 1kHz A-weighted)

    BAL≤0.5Ω(32Ω loaded)

    Noise Floor

    High power model& A-weighted
    PO≤1.0uV BAL≤2.0uV

    Amplitude

    PO:0.9V(32Ω /THD+N<1%)

    PO:  0.9V (no loaded)

    Low Power model & A-weighted
    PO≤4.5uV BAL≤4.5uV

    BAL: 1.59V(32Ω /THD+N<1%)

    BAL: 1.8V(no loaded)

    SNR

    PO≥119dB (32Ω  A-weighted)

     
    Crosstalk

    PO≥ 73dB(1kHz 32Ω loaded)

    PO≥ 114dB(1kHz no loaded)

    BAL≥122dB(32Ω  A-weighted)

    BAL≥ 108dB(1kHz 32Ω loaded)

    BAL≥119dB(1kHz no loaded)

    Sampling Rate Supported Up to

    48kHz/16bit(USB DAC) 

     

     

    Chips Used

    DAC: AK4377 A* 2  , Bluetooth: CSR8675 

     Accessories

    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 reference)

    Battery Life

    Low Power model:BAL &P about 11h
    High power mode:PO about 9.5H,BAL about 7.5H

    Bluetooth Transmitter

    iPhone (AAC)

    Connected Headphones

    M3 open earbuds(27Ω)

    Volume

    With set output at 40mV