FiiO BTR3K – Review

FiiO BTR3K

FiiO BTR3K

| Bluetooth Amp | USB DAC | Bluetooth 5.0 |



🎧 We are reviewing the FiiO BTR3K, the 2nd generation of the BTR3 Bluetooth amp series.

The BTR3K is part of the latest generation of Bluetooth adapters from FiiO, like the FiiO BTR5, and released after the:

Likewise many of the recent Bluetooth-enabled products from FiiO, the FiiO BTR3K carries a Hi-Res Audio Wireless certification.

In addition to this, the FiiO BTR3K features a Qualcomm CSR8675 Bluetooth chip with a modern BT 5.0 version that offers A2DP, AVRCP, HFP, HSP profiles and supports lossless wireless codecs.

FIND ALL: Earphones Scores Compared

MORE: In-Ear Headphones Reviews

SEE ALSO: Headphones Technical Specifications


FiiO BTR3K Review

Tests & Scores


AF

Advanced Features

The FiiO BTR3K features include advanced options such as:

  • USB DAC
  • Dual simultaneous connection
  • CTIA controls compatibility
  • Noise cancelling microphone for phone calls
  • Codecs light indicator

W

Weight

FiiO BTR3K weight in Ounces and FiiO BTR3K weight in grams.

MORE: In-Ear Headphones Weight Comparison

SEE ALSO: Earphones Size Comparison


A

Accessories & Packaging

The FiiO BTR3K comes packed inside a medium-sized, white box with a clean design – similar to many other products from the brand.

The unit is placed inside, surrounded by a protective, cushiony piece that is 3 times larger than the device itself – worry-free protection.

Bundled with the device, users will find an USB cable and a plastic clip.

gramophone-25660 3.75/5


D

Design

The FiiO BTR3K has a stylish look, with an all-dark design that is packed in a seamless metal shell with both frontal and rear glass panels.

To smooth out the form factor, the BTR3K has rounded ends on all 4 edges and concave ends that are far from showing any sharp parts – resulting in a very comfortable and natural grip.

As you might noticed, the FiiO BTR3K has the same name as the previous BTR3 model, with the addition of a “K” at the end of the name. The generational proximity with the BTR3 extends, also, to aesthetics and design; in fact, both the BTR3 and BTR3K will look identical at first sight.

Nonetheless, the FiiO BTR3K has a significant redesign over it’s clip section, where the BTR3 was fixed and now the newer BTR3K offers the clip section as a detachable addon that comes bundled with the unit. This design decision allows the BTR3K to reach a much thinner profile when the clip is detached and, yet, not loosing it’s clip functionality.

The FiiO BTR3K is a small Bluetooth amp, that falls within FiiO’s standards in size, measuring 58mm x 25mm x 12mm and weighting about 23 grams.

gramophone-25660 4.75/5

FiiO BTR3K
FiiO BTR3K
FiiO BTR3K
FiiO BTR3K

OC

Operation & Control

The BTR3K has 4 buttons on it’s right edge, these will allow the full control of the device without any complex multibutton combinations.

Each button has a different and unique shape and size, which will allow users to recognize the buttons functions by simple touch without necessarily having to look at them – this might seem as a trivial fact, yet on daily use and while having the adapter inside a pocket, this feature will be a very welcomed design detail that will ease-up the it’s usage.

An additional tech incorporation of the FiiO BTR3K is it’s compatibility with CTIA controls, this enables the use of the CTIA playback controls of your headphone’s cable.

The main functions of the buttons are:

Power Button:

  • Press and hold: Power on/off
  • 2x click: switch between devices

2nd Button:

  • A single press: Play, Pause music or Answer/End calls
  • 2x click: Activate Siri

Volume UP Button:

  • A single press: Volume up
  • Press and hold: Previous song

Volume Down Button:

  • A single press: Volume down
  • Press and hold: Next song

LED Status Light: The front glass of the FiiO BTR3K, actually, hides a “FiiO” logo that will illuminate and change color according to the Bluetooth codec being used – it will also serve as a status indicator.

The colors corresponding to each codec are:

  • blue (SBC)
  • cyan (AAC)
  • white (LDAC/DAC)
  • green (LHDC)
  • purple (aptX/aptX low latency)
  • yellow (aptX HD)

gramophone-25660 4/5

FiiO BTR3K buttons
FiiO BTR3K buttons

B

Battery Life

Inside this tiny device there is a rechargeable lithium battery with a capacity of 330mAh.

The FiiO BTR3K can provide as much as 11 hours of continuous playback and can be fully recharged in less than 90 minutes through it’s USB Type-C connector, when using a compatible charger that outputs 5V 0.5A (for example, standard USB 2.0 port from a computer)

The battery runtime of the BTR3K is inline with the recent Bluetooth adapters of the brand and is, even, nearly 25% more than on the FiiO BTR5.

gramophone-25660 3.5/5

MORE: Earphones Amplification Power Comparison

MORE: Best Basshead Earphones

SEE ALSO: Best Fun Sounding Earphones Chart

FiiO BTR3K charging port
FiiO BTR3K charging port

CB

Construction & Build

If you are an owner of recent FiiO products, you should expect the same level of heavy-duty build with the FiiO BTR3K.

The main shell is fully made of aluminum alloy while the front and back are 2.5D reinforced glass.

The quality materials used for it’s build can be felt when holding it on the hands, the device will inspire confidence to use it without fear of falling apart.

As we have mentioned before, the BTR3K comes with a clip addon; this clip accessory is made of transparent plastic. This will not provide the same metal build as on the older FiiO BTR3 but does neither feel cheap nor too fragile.

gramophone-25660 5/5

FiiO BTR3K with clip
FiiO BTR3K with clip

FC

Formats Compatibility

The FiiO BTR3K is equipped with dual AK4377A DAC chips and a Qualcomm CSR8675 that supports lossless Bluetooth codecs.

Fortunately, this Bluetooth amp will allow audio-enthusiasts to benefit and enjoy lossless and low-latency sound that can be switched at will and on-the-fly.

The codecs supported are :

  • AAC
  • SBC
  • aptX Low Latency
  • aptX HD
  • LDAC
  • LHDC

gramophone-25660 5/5

MORE: Best Headphones for Libraries Chart

SEE ALSO: Best Earphones for Bed


C

Connectivity

All the ports and connectors of the BTR3K are distributed through out the top and bottom edges. The top edge holds an USB Type-C connector that is used as a charging port and as the connection for USB DAC functionality; while the bottom edge is the area where both the 3.5mm single-ended headphone connector and the 2.5mm balanced headphone connector reside.

Thanks to it’s newer Bluetooth 5.0 and chip backed up by Qualcomm, the FiiO BTR3K showed a stable Bluetooth connection without any frequent dropouts of signal.

gramophone-25660 4.25/5

RELATED TO THIS: Active Noise Cancelling Headphones Reviews

FiiO BTR3K
FiiO BTR3K

S

Sound

Seeing such a small and affordable BT adapter/amp that bundles DAC capabilities, users might be unsure of the usability and quality as a dedicated DAC.

When our team measured the FiiO BTR3K, we were greeted with a remarkably flat frequency response that was equally as flat in Bluetooth mode and USB DAC mode – making this BT amp, also, a ridiculously tiny external USB DAC that can offer excellent performance.

When paired with in-ear monitors and full-sized headphones, the BTR3K showed no significant variation on it’s sound outputted, conserving the true original sound signature and small audio personality details of each headphone.

One of the most remarkable upgrades on the FiiO BTR3K is the dual headphone connector with the addition of a balanced 2.5mm with a huge bump in power output. This newly added balanced headphone connector brings to the table a 300% power output boosting that can reach up to 78mW (32Ω), which proved to be more than enough to drive most popular earphones on the market and was even to couple up with many full-sized headphones with sufficient volume margin.

Thanks to it’s CSR8675 chip, dual independent crystal oscillators and supported by a two high-performance AK4377A DAC chips, the FiiO BTR3K can grant 24-bit transmission and lossless wireless audio codecs that can adapt to any audiophile’s needs.

Among the technical specifications directly related to audio that might interest audiophiles, the FiiO BTR3K offers a SNR of 122dB with 118dB of crosstalk and a noise floor of 2uV.

gramophone-25660 5/5

RELATED: Best Earphones for Daily Commute

MORE: Most Comfortable In-Ear Headphones

MORE: Editor’s Picks Earphones Chart

MORE: Best Bang for the Buck Earphones

FiiO BTR3K
FiiO BTR3K


Follow us:

   

Get the latest reviews on your favorite social network


Frequency Response (raw)

FiiO BTR3K Frequency Response Curve

FiiO BTR3K frequency response curve
FiiO BTR3K frequency response curve

FiiO BTR3K Frequency Response Curve – DAC vs Bluetooth

FiiO BTR3K DAC and Bluetooth frequency response curve
FiiO BTR3K DAC and Bluetooth frequency response curve

RECOMMENDED FOR YOU: Headphones Frequency Response Curves

SEE ALSO: KZ Headphones Frequency Response Curves


Specifications

FiiO BTR3K Technical Specifications

TypeBT adapter/USB DAC
Music PlayerNo
DACYes
Battery11 hours
FormatsSBS, AAC, aptX, aptX-LL, aptX-HD, LDAC
Frequency Response20Hz-20KHz
PlugStereo mini plug + balanced 2.5mm
WeightApprox. 23.5g

YOU WILL ALSO LIKE: Amazon Coupons & Deals

MORE:  Gearbest Coupons – Discounts – Deals – Promo Codes – Sales Deals

SEE ALSO: Banggood Coupons – Discounts – Deals – Promo Codes – Sales Deals

SEE ALSO: Aliexpress Coupons – Discounts – Deals – Promo Codes – Sales Deals

MORE: Hybrid Earphones Reviews

MORE: Single Dynamic Driver Earphones Reviews


Scores Scores

FiiO BTR3K Scores

Buy it from:

SEE ALSO: Coupons – Discounts – Deals – Promo Codes – Sales Deals

FIND ALL OUR: Earphones Reviews / Headphones Reviews

MORE: Best Earphones Charts


Full technical specifications

FiiO BTR3K Full technical specifications

reported by FiiO

Model

BTR3K

Color Available

Black

Dimensions

About  58×25×11mm

AMP

AK4377Ax2

USB DAC

Yes

Volume Button

Yes

Transmission Distance

30m

Status Indicator Light

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

Hands-free call/Mic

Yes

Call up Siri in iOS

Yes

NFC

No

Audio Input

Bluetooth connection (Bluetooth 5.0)

Supported Audio Format(s)

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

NFC

Not Supported

Mic Function

Supported

Headphone Output

3.5 mm stereo jack

Headphone Balanced Output

2.5mm

USB Port

Type C USB

Volume Control

Side buttons

Status Indicator Light

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

Charging Time

≤1.5 h (DC 5V 500mA)

Power Input

Recommend DC 5V, 500mA

Battery Capacity

330 mAh

Drive Ability

16~100 Ω (recommended)

Output Power

About 25mW (32Ω loaded)
About 78mW (balanced)

Frequency Response

20~20kHz(aptX connection)
20~40kHz(LDAC connection)

SNR

122dB (A-weighted)

Crosstalk

≥ 118 dB(32Ω loaded)

Bluetooth Chip

CSR8675

Accessories

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

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

Battery Life

About 11 h

Bluetooth Transmitter

(AAC)

Volume

With set output at 40mV

Photos

FiiO BTR3K Photos

SELECTED FOR YOU: Aliexpress 11.11 Shopping Festival Coupons

RELATED TO THIS PAGE: Aliexpress Anniversary Sale Coupons and Deals

SEE ALSO: Black Friday Coupons and Deals Black Friday Aliexpress

MORE: Cyber Monday Coupons and Discounts

CHECK OUT: VERSUS Comparisons

ALSO: Headphones Comparisons

MORE: Music Players / DAP / DAC / Amplificators Reviews

FiiO BTR3K

8.9

SCORE

8.9/10


RECOMMENDED

Found the Information Useful?

❤ Follow us:     


We hope you enjoyed this article. All the earphones reviews, earbuds reviews, headsets reviews, in-ear monitors reviews (iem), in-ear headphones reviews are made as objective and thorough as possible to provide our readers a way to choose the best earphones, earbuds, iem, in-ear monitors, headsets and in-ear headphones. By providing exhaustive information we allow our readers to even fine-tune their choices to select among the best budget earphones, best earphones for sports, best basshead earphones, best fun sounding earphones, most balanced earphones, least fatiguing earphones, most comfortable earphones, best looking earphones or even for the best cheap earphones to buy.  Our resources offer: In-Depth Earphones Reviews, Earphones Scores Compared, an Earphones Size Comparison Tool, a sound frequency cheat-sheet, an Earphones Amplification Comparison Table, a brief audio glossary with the most frequent audio terms and audio definitions, and our Earphones Top Charts (covering the Top 10 Basshead Earphones, Best Bang for Buck Earphones, Top Sports Earphones, Best KZ earphones, Best bang for buck KZ earphones, Best basshead KZ earphones, Best KZ earphones for bass, Best KZ earphones for gaming, Best KZ earphones for sleeping, Best KZ earphones for working out, Best KZ earphones under $20, Best KZ earphones under $50, Best smallest KZ earphones, Top Balanced Earphones, Top Fun Sound Earphones, top smooth sounding earphones), Best Xiaomi Headphones, Best Xiaomi Earphones for Bass, Best Xiaomi Headphones under $50, Best Xiaomi Headphones under $20, The Best Xiaomi Wireless Headphones, Best Bang for Buck Xiaomi Headphones, Best 11.11 Deals and Coupons – Aliexpress – Gearbest – Banggood, Black Friday Coupons and Deals, Aliexpress Anniversary Sale Coupons and Deals, Cyber Monday Coupons and Discounts, Black Friday Coupons Aliexpress, Gearbest, Banggood, Amazon Coupons Discounts Deals Promo Codes Sales, ALIEXPRESS Coupons and Promo Codes – Exclusive Discounts