Positive Grid Spark LINK XLR — Wireless XLR Audio System

The Positive Grid Spark LINK XLR is a plug-and-play wireless XLR system built for dynamic microphones. Plug the transmitter into any dynamic mic, plug the receiver into the XLR input on your PA, mixer, or audio interface, power both on, and they auto-pair in seconds — no channel scanning, no menus, no app required. That's the whole setup.

Audio runs at 24-bit/48kHz with 103.7dB of dynamic range over a proprietary 2.4GHz wireless connection, and latency sits under 3ms — low enough that you won't notice a difference from a wired connection in a live setting. Transmission range reaches up to 70 feet (21 meters) line-of-sight, which covers most club stages and rehearsal spaces comfortably. The rechargeable lithium-ion battery delivers up to 7 hours of continuous use on a 2-hour charge, and the transmitter will automatically shut down after 15 minutes of no signal to conserve power.

Up to four Spark LINK XLR systems can operate simultaneously in the same space, so if you're running multiple wireless mics for a full band or a multi-speaker event, you're covered without interference. The system also integrates directly with Positive Grid's Spark LIVE and Spark EDGE amps, but it works with any XLR-input device accepting mic-level signal.

One important note: the Spark LINK XLR is designed for dynamic microphones and mic-level XLR sources only. It does not provide phantom power, so it's not compatible with condenser microphones.

Specs

Type: Wireless XLR Audio System (Transmitter + Receiver)
Compatibility: Dynamic microphones, XLR devices with mic level output (not compatible with condenser microphones requiring phantom power)
Wireless Connectivity: Positive Grid proprietary wireless audio (2.4GHz)
Transmission Range: Up to 70 feet / 21 meters (line-of-sight)
Compatible Channels: 4
Sample Rate / Bit Depth: 48kHz / 24-bit
Frequency Response: 20Hz – 20kHz
Dynamic Range: 103.7 dB
Latency: < 3ms
Controls: Power button, LED indicator (top panel); USB Type-C charging port (rear panel)
Battery Type: 500mAh rechargeable lithium-ion
Play Time: Up to 7 hours continuous use
Charging Time: Approx. 2 hours
Charging Input: DC 5V/1A (USB-C)
Auto Power-Off: TX powers down after 15 minutes of no signal; RX powers down 15 seconds after losing TX connection
Dimensions (TX): 98.99 x 27.6 x 25.4 mm / 3.9 x 1.1 x 1.0 in (L x H x W)
Dimensions (RX): 93.96 x 27.6 x 25.4 mm / 3.7 x 1.1 x 1.0 in (L x H x W)
Weight (TX): 55.9 g / 0.12 lbs
Weight (RX): 50.7 g / 0.11 lbs
Included: Spark LINK XLR TX (Transmitter), Spark LINK XLR RX (Receiver), USB-C to USB-C Cable (1.5m), Quick Start Guide, Safety Instructions