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Nady U-81 OCTAVO Handheld Wireless System (10/11/12/14/15/16/17/18)   

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This Nady U-81 OCTAVO Wireless System is a professional 8-channel UHF wireless system which offers clear, natural-sounding wireless, providing you wi...Read More

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This Nady U-81 OCTAVO Wireless System is a professional 8-channel UHF wireless system which offers clear, natural-sounding wireless, providing you with 8 UB-81 bodypack transmitters with lavalier microphones. The Nady U-81 OCTAVO delivers eight discrete channels on selected frequency bands 902-928MHz and 944-952MHz for interference-free performance in any application or locale. The wireless mic system also features Nady's proprietary companding and low noise circuit for an industry best 120dB dynamic range.

UH-81 Handheld Transmitter
The Nady DM-50D neodymium cartridge in each UH-81 handheld transmitter helps them deliver transparent vocals, maximum feedback rejection, and minimal handling noise. They also have an On/Standby/Off switch for convenient audio muting, a status/low battery LED indicator, and are made of rugged ABS and rubber-coated housing with integral antennas.

A receiver with 8 discrete UHF channels and 8 rugged hand-held transmitters.

  • Nady wireless mic system includes:
  • 1 U-81 OCTAVO Wireless System
  • 8 UH-81 Handheld Transmitters
  • Operates on select UHF frequencies
  • Eight independent single-channel UHF wireless receivers in a single housing for simultaneous operation of up to eight transmitters
  • Front-panel LED display indicates the RF and AF status for each channel
  • Ch. 1-8 individually balanced XLR Mic Level outputs and unbalanced Line Level sum 1/4" jack output for 8-in-1 mix audio output with separate volume control for each channel
  • Nady's exclusive patented companding circuitry with 120dB dynamic range and highest-quality audio for unsurpassed UHF performance
  • Dual removable high-gain antennas with TNC connector, front or back mounting
  • Standard 19" 1U, all-metal rackmount housing
  • Externally powered with AC/DC adapter (included)
UH-81 Handheld Microphone Transmitter:
  • Nady DM-50D neodymium cartridge delivers transparent vocals, maximum feedback rejection and minimal handling noise
  • On/Standby/Off switch allows convenient audio muting while transmitter on
  • Status LED indicator flashes once for Unit On; lights steady for Low Battery Alert
  • Uses two AA alkaline or NiMH batteries

Order the U-81 OCTAVO wireless system for tons of mobility with excellent audio!


U-81 OCTAVO Handheld Wireless System (10/11/12/14/15/16/17/18)

  • Overall
  • RF carrier frequencies: Selected factory installed frequencies between 902-928MHz and 944-952MHz
  • Frequency stability : ±0.005% (Crystal Controlled)
  • Audio deviation: FM ±20kHz normal, ±50kHz maximum
  • Frequency response: 20Hz-20kHz, -3dB
  • Dynamic range: 120dB
  • Harmonic distortion: 0.5% THD, normal
  • Operating range: 250 feet normal, 500+feet max line of sight
  • Wireless Receiver
  • Reception: Mono antenna reception
  • Antennas: 10" (25.4cm) Dual adjustable angle
  • Mute threshold: -95dBm (none-adjustable)
  • Image rejection: -70dB, minimum
  • Balanced output (Audio outputs): ±24mV fixed level (600Ω)
  • Unbalanced MIX output (Audio output): 360mV variable level (Open load)
  • Connectors: Balanced-XLR; Unbalanced-1/4" TS; Antennas-TNC connector; DC in; 2.1mm barrel type
  • Indicators: Power On, RF, and AF LEDs
  • Controls: Power ON/OFF buttons, Volume Controls
  • Power requirement: 15VDC/1200mA
  • Dimensions (WxDxH): 14.25" x 12" x 1.75, (36.20cm x 30.50cm x 4.45cm)
  • Weight: 7.20lb. (3.37kg)
  • UH-81 Handheld Transmitter
  • Input Connectors: UH-Integral Nady DM-50D neodymium dynamic cartridge
  • Controls: UH-81: Power ON/STDBY/OFF
  • RF Power: 20mW normal (50mW Maximum allowed by FCC) Harmonics and Spurs: < -50dB
  • Antennas: Internal antennas
  • LED Indicators: Single LED flashes once for "ON," lights steady for "LOW BAT"
  • Battery: 2xAA Alkaline or NiMH batteries
  • Battery Life: 8-10 hours (Alkaline)
  • Dimensions: 10.5" x 1.875", 26.7cm x 4.8cm
  • Weight: 7.5oz. (213g) without battery

Review Snapshot®

by PowerReviews
NadyU-81 OCTAVO Handheld Wireless System (10/11/12/14/15/16/17/18)

(based on 1 review)

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Reviewed by 1 customer

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(10 of 10 customers found this review helpful)


Octavo U-81


from Church

Comments about Nady U-81 OCTAVO Handheld Wireless System (10/11/12/14/15/16/17/18):

"Come on M"an
3 of the 8 microphones work flawlessly, Ch. 5 and 7 seem to wash each other out, ch. 8 drops out when you turn your back to the reciever 3 ft. away, Ch.1 distorts under heavy vocals (Only Ch.1). System is used at church, and was purchased through donations from members, and chosen by your trully, I can tell people are very disappointed in my selection, and wish I had just saved up to buy multiple Shure mics. Babied system through the holidays holding my breath the whole time. Nady tech support never returned any of the 4 messages sent.
Older system was adjustable and much more reliable,
Purchased older 8 Ch. system, and hoped new technology would be better, wisely purchased 3yr warranty

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