The Radial Engineering StageBug SB-48 is a professional dual-channel phantom power supply designed to provide reliable and stable power for condenser microphones and active DI boxes. Featuring selectable +48V and +12V phantom power, the SB-48 is ideal for studio recording, live sound reinforcement, broadcasting, houses of worship, conference systems, and professional AV installations.
With two independent XLR input and output channels, the SB-48 allows users to power two microphones or active DI boxes simultaneously. Its non-radiating charge pump technology delivers clean, ripple-free phantom power, ensuring superior audio performance with minimal noise and maximum reliability.
Many venues, mixers, audio interfaces, and portable sound systems either lack phantom power or provide unstable phantom voltage that can affect microphone performance. The StageBug SB-48 solves this problem by delivering a consistent and reliable phantom power source wherever you need it.
Powered by an included 15V DC external adapter, the SB-48 generates clean +48V or +12V phantom power through a non-radiating charge pump circuit. This design eliminates unwanted noise and interference while ensuring optimal operation for condenser microphones, active DI boxes, and specialty microphones.
The compact StageBug enclosure includes a non-slip rubber base for stable placement on stage and a built-in cable clamp that secures the power cable to prevent accidental disconnection during performances and events.
Whether used in a recording studio, church, conference room, auditorium, or live performance environment, the SB-48 ensures professional-grade phantom power for critical audio applications.
Provides stable +48V phantom power for condenser microphones
Switchable +48V or +12V operation for specialty microphones
Powers two microphones or active DI boxes simultaneously
Dual-channel XLR input and output configuration
Non-radiating charge pump design for low-noise operation
Ripple-free phantom power for optimal audio quality
Includes external 15V DC power adapter
Compact and portable StageBug design
Non-slip bottom pad for secure placement
Built-in cable clamp prevents accidental power disconnection
Suitable for studio, broadcast, church, and live sound applications
Professional-grade construction for reliable daily use
Many compact mixers, powered mixers, and audio interfaces do not include phantom power.
Solution:
The SB-48 provides independent +48V phantom power, allowing condenser microphones and active DI boxes to function properly.
Low-quality phantom power sources can introduce noise, reduced microphone sensitivity, or inconsistent performance.
Solution:
The SB-48 utilizes a non-radiating charge pump circuit that generates stable, ripple-free phantom power for reliable operation.
Users often need phantom power for more than one microphone at the same time.
Solution:
The dual-channel design powers two condenser microphones or active DI boxes simultaneously.
Some microphones require lower phantom voltage than standard 48V systems.
Solution:
The SB-48 features switchable +48V and +12V phantom power modes to support a wider range of microphones.
Power interruptions can disrupt performances and recordings.
Solution:
The integrated cable retention clamp secures the power adapter cable to prevent accidental unplugging.
• Condenser Microphones
• Active DI Boxes
• Recording Studios
• Live Sound Systems
• Church Audio Systems
• Conference Rooms
• School Auditoriums
• Broadcast Studios
• Podcast Production
• Corporate AV Systems
• Hotel Ballrooms
• Rental & Event Production Companies
• Circuit Type: Non-Radiating Phantom Power Supply
• Channels: 2
• Phantom Power: Switchable +48V / +12V DC
• Input Connectors: XLR
• Output Connectors: XLR
• XLR Wiring: AES Standard (Pin 1 Ground, Pin 2 Positive, Pin 3 Negative)
• Power Supply: Included 15V DC / 400mA External Adapter
• Package Weight: 1.8 lbs (0.82kg)
• Dimensions: 6.4" × 4.1" × 2.9"
Dual-Channel Phantom Power Supply
Switchable 48V & 12V Operation
Powers Condenser Microphones & Active DI Boxes
Low-Noise Non-Radiating Circuit Design
Stable Ripple-Free Phantom Power
Professional Studio & Live Sound Solution
Compact Portable Design
Included Power Adapter
Reliable Performance for Critical Audio Applications
Trusted Radial Engineering Audio Quality
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