Shure Vocal System: BLX4R Rack-Mount Receiver with BLX2 Handheld Transmitter

Experience professional-grade wireless vocal performance with the Shure Vocal System, a complete, ready-to-use wireless microphone solution built around the BLX4R rack-mount receiver and the BLX2 handheld transmitter. Designed for singers, speakers, and presenters, this system delivers pristine, natural vocal reproduction with reliable RF stability across demanding venues—from intimate clubs to large ballrooms and worship spaces. With smart, user-friendly setup and rugged construction, the Shure Vocal System helps you focus on your performance, not on the gear. The compact, rack-mountable design fits neatly into permanent installations or touring rigs, while the handheld mic’s ergonomic grip and cardioid pickup pattern minimize feedback and ambient noise. Whether you’re delivering a keynote, leading a choir, or performing a high-energy set, this two-channel wireless system provides the flexibility, durability, and audio quality you need to captivate audiences with confidence.

• The two-channel BLX4R rack-mount receiver forms the core of the system, offering independent control for each channel, clean signal paths, and simple integration with stage rock and live sound setups. With the included rack-mount hardware, you can neatly install the receiver in a standard 19-inch rack, keeping your control surface accessible while conserving valuable stage space. This design enables quick reconfiguration for duos, hosts with backing vocalists, or multi-mic performances, all while maintaining reliable, consistent sound across channels.
• Robust RF performance and interference management, featuring UHF frequency ranges and automatic scanning to locate clean, open channels. The BLX4R is engineered to work in real-world environments—filled with other wireless devices and potential RF interference—so you can rely on steady vocal transmission during crucial moments. The system supports fast channel selection and synchronization to minimize dropout, ensuring your voice stays centered and intelligible from house left to far right of the stage.
• Durable BLX2 handheld transmitter with a cardioid dynamic microphone capsule—tuned for clear vocal pickup and excellent off-axis rejection. The handheld mic is designed for long-term reliability, with a rugged housing that withstands daily use in rehearsal rooms, venues, and rental houses. The BLX2 uses a single AA battery, delivering extended runtime to power through rehearsals, soundchecks, and performances with minimal interruptions.
• Ease of use and quick setup, including intuitive pairing between the BLX4R receiver and the BLX2 handheld transmitter, along with clear LED indicators and status meters. The system is designed for fast on-site setup, allowing performers and technicians to get to soundcheck quickly, dial in gain and output levels, and begin rehearsals without wrestling with complex adjustments—perfect for schools, churches, theaters, and clubs alike.
• Value, portability, and versatility make the Shure Vocal System a practical choice for both rental houses and permanent venues. The rack-mountable receiver keeps cables organized and out of the way, while the handheld transmitter’s compact form factor makes it easy to mount on a mic stand or theatre rig. The overall build quality, security features, and reliable performance provide a professional edge for any vocal presentation or live performance.

Technical Details of Shure Vocal System

• System: BLX4R two-channel rack-mount wireless receiver + BLX2 handheld transmitter
• Frequency Range: UHF band (region-specific; available in multiple frequency ranges; consult local guidelines for exact allocations)
• Output Connectors (Receiver): balanced XLR and 1/4" outputs for each channel to mixer, snake, or powered speakers
• Power: Receiver powered by standard AC supply; Transmitter powered by one AA battery (user-replaceable)
• Battery Life (BLX2): approximately up to 14 hours depending on battery type and usage
• Construction: rugged metal chassis for the receiver and durable ABS housing for the handheld transmitter
• Included Accessories: rack-mount kit, power adapters, microphone clip, user guide, and required hookup cables

How to Install Shure Vocal System

• Unpack the BLX4R rack-mount receiver and the BLX2 handheld transmitter. Confirm all parts are present, including rack-mount brackets, screws, power adapters, and the microphone clip.
• Mount the BLX4R in a standard 19-inch rack using the provided rack-mount hardware. Position the receiver in a central location with ample airflow, away from heat sources and large metal obstructions that could affect RF performance.
• Connect the BLX4R outputs to your mixer, stage box, or powered speakers using the appropriate balanced XLR or 1/4" cables. Route signals to your mix bus with proper headroom for vocals, and set initial gain so the vocal signal sits cleanly without clipping.
• Power on the receiver and then the BLX2 handheld transmitter. On the transmitter, install a fresh AA battery, ensuring correct polarity. Use the scan/auto frequency feature on the BLX4R to locate a clear channel, then synchronize or manually set the BLX2 to the same channel. Confirm both channels are operational with solid LEDs and healthy signal meters.
• Tune and test during soundcheck. Start with conservative gain settings, perform a brief vocal test, monitor for any dropouts or interference, and adjust RF level and mic gain as needed. Save preferred channel assignments so you can quickly recall them for future gigs or room changes.
• Finalize the setup by labeling channels for easy identification on stage, organizing cables, and sharing the system’s basic operating instructions with the user or host. Regularly check batteries, connectors, and the rack environment to maintain consistent, reliable performance over time.

Frequently asked questions

• Q: What comes in the box with the Shure Vocal System? The package includes the BLX4R two-channel rack-mount receiver, a BLX2 handheld transmitter, a rack-mount kit, power adapters, a microphone clip, and a user guide. Depending on retailer, additional accessories or spare batteries may be included.
• Q: Is this system suitable for live stage performances and public speaking? Yes. The Shure Vocal System is designed for a wide range of applications, including live vocal performances, public speaking, corporate events, worship services, schools, and conference venues. Its two-channel flexibility supports multiple speakers or vocalists with minimal setup.
• Q: How many receivers can be used in one venue? You can deploy multiple BLX4R receivers in a single venue, coordinating frequencies to minimize interference. Always follow local regulatory guidelines and perform proper spectrum coordination when using multiple wireless systems in the same space.
• Q: What is the approximate wireless range? In typical indoor environments with a clear line-of-sight, you can expect range up to about 300 feet (roughly 100 meters). Real-world range will vary based on walls, reflective surfaces, interference, and antenna placement.
• Q: How do I pair the handheld transmitter with the receiver? Power on both units. Use the BLX4R’s frequency scan to locate a clear channel, then set the BLX2 to the same channel, or use the auto-sync feature if available. Verify the signal LEDs indicate a healthy connection before going on air.