
Radial Engineering
Radial Engineering R800 1057 BT-Pro V2 Bluetooth Direct Box
★★★★★
Stream Bluetooth audio into any professional PA system with Radial's studio-grade 2-channel active direct box.
$364.99*
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.
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Overview
Key Features
Active Direct Box f Bluetooth Wireless Audio Streaming with Mono Sum Switch
Headphone Output
Level Control
Ground Lift
Specifications
Brand
Radial Engineering
Model
R800 1057
Type
Active Direct Box & Bluetooth Receiver
Bluetooth Version
5.0
Channels
2
Outputs
Balanced XLR
Features
Mono Sum Switch, Headphone Output, Level Control, Ground Lift
Pros & Cons
👍 Pros
- Bluetooth 5.0 provides reliable wireless streaming range and stable connections in live environments.
- Balanced XLR outputs deliver clean, professional-grade audio to any PA system or mixer.
- Mono sum switch offers flexibility for mono PA configurations without needing an external summing device.
- Built-in headphone output with level control allows pre-listen monitoring before sending audio to the house.
- Ground lift switch helps eliminate hum and buzz from ground loops in complex audio chains.
👎 Cons
- Bluetooth audio is inherently compressed, so it will not match the fidelity of a wired line-level connection.
- Wireless pairing depends on a single device at a time, requiring re-pairing when switching source devices.
- No wired analog input means it cannot serve as a conventional DI box when Bluetooth is not needed.
- Premium pricing compared to basic passive DI boxes, reflecting the added Bluetooth and active circuitry.
Frequently Asked Questions
How does the BT-Pro V2 connect to a PA system?
It functions as a 2-channel active direct box with balanced XLR outputs, so you connect it directly to a mixer or snake just like any standard DI box. The Bluetooth signal is received wirelessly, converted, and sent to the PA via the balanced outputs.
What Bluetooth version does the BT-Pro V2 use?
It uses Bluetooth 5.0, which provides improved range, connection stability, and audio quality compared to earlier Bluetooth versions.
Does the BT-Pro V2 have a mono sum option?
Yes, it includes a mono sum switch that combines the left and right Bluetooth channels into a single mono signal, which is useful when feeding a single mixer channel or mono speaker system.
Can I monitor the Bluetooth audio before it reaches the PA?
Yes, the BT-Pro V2 has a built-in headphone output with level control, allowing you to privately monitor the incoming Bluetooth signal for quality and volume before it goes live.
Does this DI box include a ground lift?
Yes, a ground lift switch is included to eliminate hum and buzz caused by ground loops between the BT-Pro V2 and the connected audio system.