Nady U-81 Octavo HM10 Wireless System  

Item #: 
  • Write a Review

The Nady U-81 Octavo HM10 is a wireless system that includes the U-81 Octavo Wireless Receiver, HM-10 Wireless Headworn Microphone, and the UB-81 Bodypack Transmitter.

The U-81 Octavo wireles... Click To Read More About This Product

We're sorry—we no longer carry this item.

Find a similar product below or contact us for a recommendation of a great alternative.

Call: 866-498-7882 Email or Chat

Recommended Products

The Nady U-81 Octavo HM10 is a wireless system that includes the U-81 Octavo Wireless Receiver, HM-10 Wireless Headworn Microphone, and the UB-81 Bodypack Transmitter.

The U-81 Octavo wireless system offers clear channel operation on the wide-open, uncluttered UHF band for interference-free performance in any application or locale. The Nady Octavo delivers 8 discrete channels on selected frequency bands from 740MHz to 764MHz. The Octavo HM10 system features Nady's proprietary companding and low noise circuit for an industry best 120dB dynamic range, and the clearest, most natural sound available in wireless today.

Consumer Alert:

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCCs wireless microphone website at:

  • U-81 Octavo Wireless Receiver
  • Operates on select UHF frequencies from 740MHz to 806MHz
  • Eight independent single-channel UHF wireless receivers in a single housing
  • Front panel LED display indicates the RF and AF on for each channel
  • Ch 1-8 individual 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 an unsurpassed UHF performance
  • Dual removable high gain antennas with TNC connector front or back mounting
  • Standard 19" 1U, all-metal rack mount housing
  • Externally powered with AC/DC adapter included
  • HM-10 Headworn Microphone:
  • Wide bandwidth omni-directional electret condenser mic ensures clean transparent audio and enhanced vocal pickup with improved gain before feedback
  • Durable thin-metal frame can be easily molded to any user
  • Ergonomic design and comfortable fit with or without glasses, hats, or headphones and no hairstyle hindrance
  • Available with Mini-XLR or 3.5mm phone plug for wired and wireless applications (fits most standard wireless bodypack transmitters). Available in black or beige color
  • Require low voltage phantom power as supplied by most wireless bodypack transmitters
  • 9~52V adapter supplied for wired applications
  • UB-81 Bodypack Transmitter:
  • Choice of headworn or lavalier microphone operation with convenient input volume control for proper level adjust, or instrument operation without input level control
  • OFF/STDBY/ON switch allows convenient audio muting while transmitter "ON"
  • Status LED indicator flashes once for unit "ON". Lights steady for low battery alert
  • Single 9V alkaline or NiMH battery
  • Lightweight, rugged ABS housing with integral antenna
  • Overall System Performance:
    RF Carrier Frequencies: Selected factory installed frequencies between 740MHz-806MHz
    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

    U-81 Octavo Wireless Receiver:
    Reception: Mono antenna reception
    Antennae: 10" (25.4 cm) Dual adjustable angle
    Mute Threshold: 95dBm (none-adjustable)
    Image Rejection: -70dB, minimum
    Balanced output : Audio outputs: +/-24mV variable level (600 Ohms)
    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/1000mA
    Dimensions (W x D x H): 14.25" x 12" x 1.75 ", (36.20 cm x 30.50 cm x 4.45 cm) Weight : 7.20 lbs (3.37 Kg)

    UB-81 Bodypack Transmitter:
    Input Connectors: 3.5mm locking mini-jack,
    Controls: ON/STDBY/OFF, Input Level Control (LT/HM), selectable inputs”GT/HM/LT switches
    RF Power: 20mW normal (50mW Maximum allowed by FCC)
    Harmonics and Spurs: -50 dB
    Antennas: Internal antennas
    LED Indicators: Single LED flashes once for "ON", lights steady for "LOW BAT"
    Battery: Single 9V Alkaline or NiMH battery
    Battery Life: 8-10 Hours (Alkaline)
    Dimensions: 4.25" x 2.5"x 1.0" (10.8 cm x 6.4 cm x 2.5 cm)
    Weight: 3.1 oz (88 g) without battery
Wireless Equipment (Most) *1 Year
DKW-Duo, DKW-3 *90 Day
Pro-Audio (Most *1 Year
SPC-4C, ProPerformer microphones *90 Day
RSM-1,2,3,4,& 5 *1 Year
TRM-6 *1 Year
Speakers/Powered Speakers *1 Year
Headphones *1 Year
Power Amps *1 Year
Products identified as a "Blem" or "Refurb" carry a 90-day warranty.

  • Customer Reviews
You are changing the Ship-To country.

Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.