Just works, and uses AAC with Apple devices
I've tried a couple of other Bluetooth receivers and this is the first I've found that both says it supports the AAC codec and actually uses it when macOS computers connect to it. (It's also the first I've tried that doesn't pick up a ton of interference from my Keychron Q60 keyboard.) blafili was very responsive when I had pre-purchase questions and the B3 performed exactly as they said it would - I'm very happy with this device. It sounds great and it's very easy to use. I'm listening to it as I type this, streaming ALAC files from Apple Music on my Mac through the B3 and a separate DAC and amp powering planar magnetic headphones. No noise, no interference, clear audio with a well performing codec. I'm a happy listener!

Music Receiver
blafili B3 Bluetooth Music Receiver
blafili B3 Bluetooth Receiver brings your music to life with advanced 32-bit audio processing and LDAC, aptX HD, aptX LL, aptX, AAC and SBC technology. The B3 lets you stream music wirelessly to any home music system, preserving every detail and nuance of your audio—even at extended ranges.
- Balanced XLR and unbalanced RCA outputs, plus digital optical and coaxial
- Custom broadcast name & passcode (factory default: "blafili B3", no passcode)
- Hi-Res Bluetooth audio codecs — LDAC and aptX HD
- Audiophile-grade ESS ES9018K2M DAC, 32-bit/384 kHz
- All outputs stay live at the same time
Every bit, delivered.

One small box,
every connection.
Versatile connection options
Connect hi-fi receivers, amplifiers or DACs via balanced XLR, unbalanced RCA, optical or coaxial. Two audio inputs — wireless Bluetooth and wired USB-C audio — switch seamlessly.
Audiophile-grade DAC
An ESS ES9018K2M performs 32-bit/384 kHz upsampling, extracting every detail from the source — breathing new life into even the most demanding hi-fi systems.
OLED, at a glance
A 1.34″ OLED shows codec, sample rate and volume in real time. No app required, no guessing what your receiver is doing.
Custom name & passcode
Rename the broadcast (up to 12 characters) and set a 4-digit pairing code per device — factory tools included, no subscription.
Plug into your gear.
| DEVICE | Works | Notes |
|---|---|---|
| Phones, tablets & computers (Bluetooth) | ✓ | Any Bluetooth source with SBC |
| USB-C audio from computer | ✓ | USB DAC 16-bit, 48 kHz |
| Powered speakers / amplifiers | ✓ | Line-level output — set amp volume as usual |
Nerdy by design.
- Brand
- blafili
- Connectivity Technology
- RCA, Bluetooth, Optical, Coaxial, XLR
- Controller Type
- Hand Control, Push Button
- Special Feature
- Hi Res Audio, Music Streaming, Built-In Bluetooth, USB Port, Display
- Compatible Devices
- Laptop, Desktop, Tablet, Home Theater, Smartphone
- Connector Type
- Coaxial, XLR
- Audio Output Mode
- Stereo
- Surround Sound Channel Configuration
- 2
- Color
- Black
- Bluetooth Chipset
- Qualcomm QCC5125
- USB DAC mode
- 16-bit / 48 kHz
- Bluetooth Profiles
- 5.1, A2DP, AVRCP
- Codecs
- LDAC, aptX HD, aptX LL, aptX, AAC, SBC
- Bluetooth Range
- Up to 100 feet; Removable Bluetooth antenna (RP-SMA connector)
- DAC
- ESS ES9018K2M
- Bluetooth PCM (LDAC)
- up to 32-bit / 384 kHz
- THD+N
- -120dB
- DNR
- +127dB
- A2DP Frequency Response
- 20Hz - 20kHz
- Audio Input
- Bluetooth & USB-C
- Audio Outputs
- Balanced XLR( Male ), Unbalanced RCA( Female ), OPTICAL, COAXIAL( Female )
- Power Input
- USB Type-C DC 5V/1A
- Body Material
- Aluminum + ABS
- Display Screen
- 1.34 inch OLED, 128 x 64 pixels
In the box
- blafili B3 receiver
- Removable Bluetooth antenna
- USB-C power cable
- RCA audio cable
- Optical cable (3.28 ft)
- Quick-start guide
Reviewed by the people who listen.
“it’s rare to get XLR outputs paired with high quality bluetooth codecs from a DAC at this price point”
“The sound is clean, detailed, and well-balanced across different genres of music”
“This is one of the first devices where I am happy to use bluetooth without feeling like I am compromising too much on sound quality due to the inclusion of the high-quality codecs like LDAC, AAC and aptX HD”
Rated 4.9 by 79 owners.
Great for steaming music from iPhone thru older stereo receiver
I use the RCA cables to output to a an older, but good quality stereo receiver. Connecting with Bluetooth to this device from my iPhone, this device works great - better than expected, adding new life to an older, but great sounding, stereo system. The setup and Bluetooth pairing was easy, flawless, up and running very quickly with no surprises or hassles. Volume levels output similar to the FM receiver or from a DVD player, no preamp needed as with some turntables. Range of the Bluetooth connection is good as I walk around a large room with my phone. Nice device, very pleased with the purchase.
Great Product and Customer Service! Plus, ALL THE OUTPUTS!
This is an excellent Bluetooth receiver! Sound quality is perfect, and it has more output options than competitors. I love that you can customize your Bluetooth device name and pin code. I had some trouble getting it connected to my audio interface, and reached out to Blafili and they responded immediately and helped me troubleshoot the problem and I was able to figure out that it was a setting on my interface that was wrong. The B3 unit is working perfectly! I would definitely recommend this product and this company.
Quality !
Great high end DAC for the price. Sound is very similar to my Bluedento and I found out it's the same company !!! They make great DAC's with high quality parts. They have high output volts so you don't have to crank up the volume on your amp. I'm very happy with all of their products. A great DAC at a great price !
Excellent Bluetooth device! Great support!
I got the B3 to allow a Bluetooth connection between an iPad and a mixer in my church's fellowship hall. VERY easy to connect, and wonderful sound. The fact that it had XLR connections built in was a real plus. I wrote the the vendor and asked about putting a password on the B3 and they sent me procedures - it took just a minute or so to do. Very happy with the blafili B3 and the support from the vendor. I'm streaming to my Yamaha DM3-D mixer from an iPad Pro and it sounds great.
A surprisingly useful audio transmitter / receiver
I have been using this around my house for a few months now and it is the type of device every audiophile should have in their 'toolbox'. The ability to just have a 'wireless' RCA connection is fantastic. For example, I have a Denon Amplifier which has 2 zones plugging in the RTX transmitter into the Zone 2 allowed me to share everything connected to the Denon (including a turntable) to my bedroom speakers without worrying about cables (which my wife appreciated). I have attacked a photo to give you an idea.
Overall I great little device to extend your audio around the house.
Excellent Bluetooth DAC
Great Bluetooth DAC product with exceptional sound quality. Has XLR outputs which is a big plus. I use the XLR Output to connect to my Preamp. The sound is detailed and very enjoyable to listen to. Very easy to use and a true Plug and Play device. Bought 2 of these blafili B3 devices direct from their website for my home use: one for bedroom and one for Living Room. I am very happy with the blafili B3. Highly recommended.
This is the best bluetooth DAC for the cost!
I came across this product when searching for a Bluetooth 5.0 receiver that has stereo balanced out. The only choices outside of this price came to be a Denon Professional unit that is very dated and full of complaints, a couple of small mono XLR male only units that are rechargeable, and extremely high cost "audiophile" geared devices. The fact is, this hits all the marks! It features unbalanced L+R RCA, coax, Toslink, and balanced L+R XLR outputs.
The build quality is excellent and simple. The case is a satin black alloy with a composite front and rear panel. The XLR pins and antenna connector are gold plated. The oled screen is simple yet functional. I like that it is crisp, but not overly bright. It easily fits in with your gear while not being obtrusive. There is only one button on the entire unit, and it serves as a power button, un-pair device, and factory reset.
NOTE: This receiver automatically powers on if USB voltage is supplied, thus allowing you to connect it to your receiver's switched outlet or your main power supply.
Upon disassembly, I was delighted to see that this does indeed contain the ESS 9018K2M chip and the Qualcomm QCC5125! Too many false advertisements to not check nowadays. All solder joints look good with no slop.
The included USB and Toslink cable are 3ft. and feel of good quality.
The sound through this device is strong and clear with no perceived distortion. It is very quick to connect with no dropouts while in use.
My final take on this is that is a no-brainer! A good DAC should not "color" sound as it is completely digital. Some may call me incorrect. Fine! Go sit at home and try to find the difference between your $1k unit and this one while sipping brandy by yourself. The rest should take advantage of this excellently built and priced device and keep all of the extra money in your pocket!
Blafili B3 for the win!
Write a review
Which box fits your rack?
| SPEC |
VIEWING
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|---|---|---|---|---|
| Price | $109.00 |
$40.99 |
$21.99 |
$44.99 |
| Best for | Hi-fi stacks & home theater | Studios, PA & installers | First wireless upgrade for RCA stereos | Guitar amps & PA speakers |
| Bluetooth | 5.1, A2DP, AVRCP | 5.1, A2DP, AVRCP | 5.2, A2DP, AVRCP | 5.1, A2DP, AVRCP |
| Codecs | LDAC, aptX HD, aptX LL, aptX, AAC, SBC | aptX HD, aptX LL, aptX, AAC, SBC | aptX Adaptive, aptX HD, aptX, AAC, SBC | aptX HD, aptX LL, aptX, AAC, SBC |
| Audio I/O | Bluetooth & USB-C | XLR male ×1 | RCA | 1/4 inch TRS male ×1 |
| Power | USB-C powered (5V) — no battery | Up to 16 hours | USB-powered — no battery | Up to 10 hours |
| View | View | View |
Before you ask.
Is a Bluetooth receiver with DAC worth it?
Yes when your source streams hi-res codecs: the B3 decodes LDAC/aptX HD through an ESS ES9018K2M DAC (32-bit/384 kHz) instead of leaving the last conversion to your amp, so nothing is lost between phone and speaker.
Which Bluetooth receiver has both XLR and RCA out?
The blafili B3 outputs balanced XLR, RCA, optical and coaxial from one box — and it is an LDAC receiver on top.
Does the B3 remember settings?
Yes — codec, volume and pairing data are stored on the unit; it reconnects to the last device automatically and the OLED confirms the live codec and sample rate.
Can't get anything to pair with blafili B3 ?
blafili B3 is a Bluetooth receiver not a Bluetooth transmitter, so it can't pair and connect with Bluetooth headset, Bluetooth speaker, Bluetooth receiver and other Bluetooth receiver devices.
Difficult to sync blafili B3 with TV ?
You will need to turn off Bluetooth on other devices first, as blafili B3 can be connected by ONLY one device at the same time.
Do you have to push a button to pair device ?
No, Multi Function Button owns these functions ONLY: ON/OFF; BT Connection Reset; Factory Reset.
Will a Alto Professional Bluetooth Ultimate connect to blafili B3 ?
No, both Alto Bluetooth Ultimate and blafili B3 are BT receivers. What you need is a BT transmitter to pair/connect with Alto Bluetooth Ultimate. Hope it helps.
Will macOS Sonoma use AAC codec with blafili B3 Bluetooth receiver ? I've tried other devices that support AAC but macOS connects using SBC.
Yes, blafili B3 supports codecs of LDAC, aptX HD, aptX LL, aptX, AAC and SBC. blafili B3 connects with macOS Sonoma by AAC codec.
Do you need a Bluetooth antenna for blafili B3 ?
In some cases, you could get signal without the antenna but you must use it to get the best signal.
Can I use multiple outputs at the same time on the blafili B3?
It’s convenient that all outputs( XLR, RCA, COAXIAL, OPTICAL ) are active at the same time.
Digital optical / TOSLINK output red light does not work ?
No, the red light only comes on when there is music playing.
Can't get Bluetooth to work with two devices. One works but I can't get the second device to play.
How to connect blafili B3 with two phones: 1. Power on blafili B3 Bluetooth receiver 2. Enable Bluetooth on the 1st phone, search and connect to “blafili B3” 3. After pairing successfully, disable Bluetooth on the 1st phone. blafili B3 will enter pairing mode again. 4. Connect blafili B3 to the 2nd phone by the same way. 5. After pairing successfully, enable Bluetooth on the 1st phone, click to connect “blafili B3” again. 6. Now both 2 phones are connected to blafili B3. Note: Only 1 phone can play at a time, you have to pause the other.
What if my BT source doesn't support aptX? Can I still use blafili B3 and if so, how will it sound ?
You can absolutely still use the blafili B3, and it will sound great. LDAC, aptX HD are high quality Bluetooth audio codecs that work really well. With that said, in addition to mandatory support for SBC, Bluetooth also includes optional support for many other codecs, like MPEG-1, MPEG-2, MPEG-4, and AAC, all of which have their own advantages, and some of which sound very close to aptX HD and LDAC.





