Nady U-81 Octavo LT/O Wireless Handheld Microphone System

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Need a high-quality, hassle-free wireless system? The Nady U-81 Octavo transmits clear audio across UHF frequencies for up to 8 independently-mixable mics.

The Nady U-81 Octavo Handheld Microphone System operates on eight independent single-channel UHF wireless receivers in a single housing for simultaneous operation of up to eight transmitters, with a front panel LED display to indicate the RF and AF status for each channel. Ch 1-8 have individually balanced XLR Mic Level outputs, with an 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 delivers 120 dB dynamic range and high-quality audio for unsurpassed UHF performance.

The system comes with 8 HT-8U handheld microphone transmitters. Nady's DM-50D neodymium cartridge delivers transparent vocals, maximum feedback rejection and minimal handling noise, with an On/Standby/Off switch for convenient audio muting while transmitter is on.

Receiver Features:

- 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 read more mounting
- Standard 19" 1U, all-metal rackmount housing
- Externally powered with AC/DC adapter (included)

HT-8U 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
- Rugged ABS and rubber-coated housing with integral antenna
- UB-81: 31 oz (88 g) without battery
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OVERALL SYSTEM PERFORMANCE:
- 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

RECEIVER:
- Reception: Mono antenna reception
- Antennas: 10" (25.4 cm) Dual adjustable angle
- Mute Threshold: -95dBm (none-adjustable)
- Image Rejection: -70dB, minimum
- Balanced output: Audio outputs: +/-24mV fixed 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/1200mA
- Dimensions: (W x D x H) 14.25 x 12 x 1.75"(36.20 x 30.50 x 4.45 cm)
- Weight: 7.20 lbs (3.37 Kg)

TRANSMITTERS:
- UH-81 Handheld: Integral Nady DM-50D neodymium dynamic cartridge
- UH-81: Power ON/STDBY/OFF
- 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: 2xAA Alkaline or NiMH batteries
- Battery Life: 8-10 Hours (Alkaline)
- Dimensions, UH-81: 10.5 x 1.875" (26.7 x 4.8 cm)
- Weight: 7.5 oz (213 g) without battery

For support or warranty questions, please contact the manufacturer:
Phone: 510-652-2411

Reviewers gave this product an overall rating of 4.5 out of 5 stars. (2 ratings)
Submitted April 28, 2018 by Stephen Moore in vale, NC

"Bought it. Used it. Not Sehnheiser but great for the money."

Overall: 4.5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
Really liked the idea of 8 mics using one receiver box. Thats just so great. I think this system is great for most amateur and semi pro applications. I have worked with Sehnheiser wireless for a number of years. Lets face it. They are great but at 700 bucks for one mic and receiver thats a big investment for something you'll never make up. After the initial use of this Nady system I think I'm happy about getting it. I bought it to use with my Tri amped PA for a small band but used it today at church. I had 4 of the mics running against 4 Senheisers at the same time. I had a bunch of young ladies about 150 feet away singing along with a piano. The pianist used her Nady to narrate without incident. It definitely sets up eq and trim wise different than the Sehnheiser. With all the singing I couldn't tell much difference. Hadn't tried it for a soloist yet. The mic is pretty bassy up close and can pop some. Maybe a foam will be needed. Don't know yet. I think these would well for a band, including miking instruments and amps. I haven't tried the line out yet where its a summed output of the 8 mics. That might prove handy in some appications.

Sound
Solid. Similar to SM58 or better. Eq some low end thump out.

Features
Most useful is all of it. I like the rack mount option that comes with it. They included alternate way of mounting antennas. On off on mic is handy. Least handy is: managing 8 wireless read more mics can be tricky so i use colored tape. Difficult here because of location of on switch and battery compartment.

Ease of Use
Easy to set up and use. Trims well. I did not have alot of fb problems.

Quality
Made very well. Mics are light compared to SH. Looks nice. As nice as SH without frills.

Value
I think its a bargain.

Manufacturer Support
Nope

The Wow Factor
Looks simple but elegant. Receiver looks nice in my rack. I like the fact you have balanced mic outputs (xlr)

Musical Background:
Play guitar. Bass. Drums. Harmonica. Sing. Have worked sound systems more than 20 years
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