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Switchcraft 318BTS Phantom-Powered Stereo Bluetooth Audio Receiver for Mixers

BH #SW318BTS • MFR #318BTS
2 reviews
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Switchcraft 318BTS Phantom-Powered Stereo Bluetooth Audio Receiver for Mixers
Key Features
  • Route Bluetooth into Mixing Boards
  • 2 x XLR Outputs
  • Stereo & Mono Operation
  • Operates on Phantom Power from Board
The Switchcraft 318BTS is a stereo Bluetooth audio receiver designed for use with mixing consoles, recording interfaces, and PAs capable of supplying phantom power. It's designed to receive audio from a Bluetooth transmitter and plug directly into two XLR inputs of a mixing console.

The 318BTS draws its power from the board's phantom power. Built-into the receiver is a DAC that converts audio from the Bluetooth source at 16 bits. The receiver offers a frequency response of 73 Hz to 17.5 kHz. It can handle stereo, stereo summed to mono, and mono sound sources. The unit will receive transmissions from up to 100' away. You can also power the 318BTS by means of a micro-USB to USB-A cable and any 5V phone charger brick (available separately).
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Switchcraft 318BTS Overview

The Switchcraft 318BTS is a stereo Bluetooth audio receiver designed for use with mixing consoles, recording interfaces, and PAs capable of supplying phantom power. It's designed to receive audio from a Bluetooth transmitter and plug directly into two XLR inputs of a mixing console.

The 318BTS draws its power from the board's phantom power. Built-into the receiver is a DAC that converts audio from the Bluetooth source at 16 bits. The receiver offers a frequency response of 73 Hz to 17.5 kHz. It can handle stereo, stereo summed to mono, and mono sound sources. The unit will receive transmissions from up to 100' away. You can also power the 318BTS by means of a micro-USB to USB-A cable and any 5V phone charger brick (available separately).

UPC: 853592007274

Switchcraft 318BTS Specs

Bluetooth Version
4.0
Maximum Output Level
-26 dBu (Stereo)
Certification
FCC Class B, CE, KC, JRF, and ACMA
Frequency Band
2402 to 2480 MHz
DAC Resolution
16-Bit
Codec
SBC
Paired Devices
8x
Frequency Response
A2DP: 73 Hz to 17.5 kHz
Approx. Working Range
Up to 100' / 30.5 m
Phantom Power Requirement
40 VDC, Two-Channels, Minimum
Rated Current
4.6 mA
Rated Voltage
48 VDC
Aux Power
Micro-USB Port: 4.6 VDC
Housing
Anodized Aluminum
LED Indicators
Red and Yellow
Weight
-40 to 185°F / -40 to 85°C (Including Cable)
Dimensions
1.2 x 1.0 x 3.3 / 3.2 x 2.6 x 8.5 cm (Without Cable)
Weight
4.4 oz / 124 g
Packaging Info
Package Weight
0.345 lb
Box Dimensions (LxWxH)
5.3 x 4.65 x 1.25"

Switchcraft 318BTS Reviews

Too much latency, sleeps too much

By Matthew
Rated 2 out of 5
Date: 2025-03-11

I have the single channel version of this device, which is actually really great -- sums two channels of Bluetooth audio down to a single summed mono channel, runs on phantom power & works great. I decided to buy this stereo version because I assumed it would just be the same device without the summing feature, so that you'd have true stereo rather than stereo summed to mono. Unfortunately, in a live setting where latency is critical, this device just doesn't get it done. I am sending show audio to my house speakers using QLab, rather than just playing music from an iPad or whatever, and the timing of the audio (to match the video and lighting cues in my show) is fairly critical. With the mono version of this box, everything works great; with this unit, there is a slight but noticeable lag with audio getting through this device. I think I probably could have lived with that. The bigger issue -- and the one that made using this unit a nonstarter -- was the fact that this unit seems to go to sleep when it hasn't received audio for a while. After such a period of inactivity, 1) the audio doesn't come back on cleanly, meaning that any care you've given to fading in an audio cue goes right out the window, as the audio pops right back from 0 to 100 when the unit wakes up; 2) because the unit is now late picking up the audio stream, there will be a moment of broken audio, or, worse, the music suddenly sounds sped up, as the unit rushes audio samples to the output as it catches up with the Bluetooth stream as it rushes audio out to catch up. Bottom line...this unit is probably fine if you're planning to use it to send continuous audio to a mixer, like if you're playing music for a party. If you need low-latency, always-on (or reasonably always-on) audio where audio must play in sync with video, stay away from this unit. Use the mono version, which is great; console yourself that now your show is in sync and maybe you didn't really need stereo anyway. ;)

Add Bluetooth Devices to Mixes

By Jack
Rated 5 out of 5
Date: 2020-05-21

The 318BTS sets up very fast, and works very well. I needed to take content that is easy for me to get to through a cell phone, and add into a project. The bluetooth takes about ten seconds to pair, and you just plug the two XLR connectors right onto the mixer. Simple as that.

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