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Nady U-33B Bass Guitar System
High End UHF Bass Guitar Wireless with True Diversity


  • A professional wireless system with state-of-the-art PLL UHF performance with operation up to 300 feet line-of sight
  • Proprietary companding and low-noise circuitry for an amazing 120dB dynamic range
  • DigiTRU Diversity for maximum range and dropout protection
  • Half-rack receiver design with folding front panel dual antennas


  • Nady’s proprietary companding circuitry for an industry best 120dB dynamic range, and clearest, most natural sound available
  • Clear channel operation on the wide open, uncluttered UHF band for interference-free performance in any application or locale
  • DigiTRU Diversity™ for optimum range and dropout protection
  • A/B antenna LED indicators
  • 5-LED AF display for monitoring audio level
  • Unbalanced ¼” and balanced XLR outputs (for bass amp or direct mixer feeds, or both)
  • Volume control for unbalanced line output
  • Fixed level for XLR output
  • External mute (squelch) adjust
  • Half-rack receiver design with folding front panel
  • Dual one-section telescopic antennas
  • Unique snap-out panel locking tabs for optional single receiver rackmounting or dual receiver (side-by-side) rackmounting
  • Externally powered by AC/DC power adapter

U-33B BASS Bodypack Transmitter:

  • Small and compact
  • Removable “rubber ducky” antenna
  • Customized specially for use with U-33B bass guitar receiver
  • Enhanced Headroom™ for maximum possible clarity and distortion-free audio, even with high output active pickups
  • Audio mute switch allows convenient audio muting with transmitter on
  • Bi-color LED status indicator: On (green), low-battery alert (Orange)
  • Locking 3.5mm mini-jack provides secure connection for removable instrument cable
  • Convenient, economical operation with two AAA alkaline or NiMH batteries
Specifications OVERALL SYSTEM Operating Frequency Range: 470-500MHz (UHF, Dual Band) Frequency Response: 30Hz - 18KHz, +/-dB Dynamic Range: 120dB Total Harmonic Distortion: <0.6% Operating Range: Up to 250ft. typical; up to 500ft. U-33B WIRELESS RECEIVER Reception Mode: DigiTRU Diversity (Dual Antenna) Controls: Power On/Off, Volume Control, Squelch (Mute) Adjust Squelch: External Control, Tone Key (30.720KHz) Connectors: DC in, ¼"-inch unbalanced output, XLR balanced output LED indicators: Power on Diversity A/B, Audio Peak Unwanted Signal Rejection: 60dB image and spurious Power requirements: DC 18V@250mA, AC/DC adapter included Dimensions (Max.): 1.75"H x 7.5"D x 8.1"W UB-33B BODYPACK TRANSMITTER Controls: Power/Mute On/Off, Instrument/Headworn Mic/Lav Mic, Input Level LED Indicator: Bi-Color, Unit “ON” (Green), Low Battery Alert (Red) RF power out: 50mW Harmonic & Spurious Emissions: < -50dB Battery needed: 2 "AAA" alkaline Battery Life: 4-5 hours Dimensions: 3.25"H x 2.187"W x 1"D Weight: 2.25oz
California customers: Proposition 65 WARNING