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Product Description

Nady Systems 401X QUAD HM-20U  (Nady 401X QUAD HM-20U)

Featuring four independent VHF receivers in one convenient, rugged, all-metal, single-rack space housing the Nady 401X Quad wireless system makes operating 4 wireless systems at the same time easier than ever. This particular headset wireless mic system comes with four HM-20U headset mics and 4 WLT bodypack transmitters. The versatility of the 401X Quad extends to its dual antenna jacks which allow you to have either onboard or remote antennas. The rock-solid VHF performance is complemented by unmatched transparent audio with 120dB dynamic range and up to 500 feet optimum line-of-sight operation.

The Nady HM-20U miniature unidirectional condenser headset microphone is optimally designed for singing and speaking applications, even in noisy environments. Its small, lightweight design makes it ideal for handsfree use with minimum visibility. Perfect for singer-musicians (drummers, keyboardists), vocal/dance performers, DJs, television announcers, public speakers, and aerobics instructors. The Nady microphone has a 3.5mm phone plug that securely locks into the included WLT bodypack transmitters to give you true, handsfree operation. The WLT bodypacks work for up to 15+ hours on a single 9V battery sold separately) and have low-battery LED indicators, audio muting, and easily accessible volume control.

Features:

Front dual antenna jacks for either onboard or remote antennas
Front panel Power ON/OFF switch, plus Power ON LED, TX ON, and AF signal level LED displays
Noise-free transmitter ON/OFF operation
Rear panel individual XLR Output jacks, volume and RF mute controls for each of the 4 channels, and 4-Channels-Mixed AF Out 1/4" phone jack
High performance, transparent audio with 120dB dynamic range and up to 250+ feet optimum line-of-sight operation
4 transmitters can be operated simultaneously on the 4 different channels

WLT Bodypack Transmitter

Bodypack transmitter
OFF/STANDBY/ON switch allows convenient audio muting with the transmitter ON
Low-battery LED indicator flashes once for when unit is ON; lights steady for low battery alert - single 9V alkaline battery operation (15+ hours)
Locking 3.5mm mini-jack provides secure connection for removable microphone cable
Easily accessible input level adjust control for optimum sound

HM-20U

Full-frequency, unidirectional electret condenser mic
Warm, transparent audio and maximum feedback rejection
Durable, thin metal frame easily molds to any user
Ergonomic design and comfortable fit with or without glasses, hat, or headphones (also no hairstyle hindrance)
Tiny 5 x 8 mm lightweight capsule for hours of comfortable use
Two sizes of foam windscreen included to reduce wind/popping noise
Extendable, fully adjustable boom for optimum mic capsule placement


SPECIFICATIONS

401X Quad HM-20U Headset Wireless System

Wireless Mic System Performance
Frequency Response: 30-18KHz (-3dB)
Dynamic Range: 120dB (20-20KHz)
Total Harmonic Distortion: <0.5% (typical)
RF Carrier Frequency Range: 170-230MHz (Factory installed Channels)
Frequency Stability: +/- 0.005%, crystal controlled
Modulation: FM (F3E), +/-15KHz nor,+/-30KHz max
Operating Range: 250 feet typcial - up to 500+ feet optimum line-of-sight

Wireless Bodypack Transmitters

Audio Inputs: 3.5mm mono locking jack for connecting to omnidirectional lavalier mic with phantom power
Controls: OFF/STANDBY/ON switch, input level adjust
LED Indicator: Unit "ON" (single flash), Low Battery Alert (steady)
RF Power Out: 50mW (Max. allowed by FCC)
Harmonic & Spurious Emissions: <-40dB
Battery: 9V Alkaline
Battery Life: Up to 20 hours
Dimensions: 4.1"H X 2.4"W X 0.8"D (10.4cm X 6.1cm X 2.0cm)
Weight: 3.6oz. (101g)

Wireless Receiver

Controls Power ON/OFF, volume control, mute control
Connectors: 1 unbalanced adjustable mixed (all four channel), 1/4" T-S audio output jack. Line level, 600 ohms, 4 balanced fixed level XLR, #1=GND, #2-3=signals, Line/Mic level, 11k/600ohms
Receiver: 2.1mm barrel-type DC input jack (tip=positive)
LED Indicators: 1 Power ON LED, 4 AF LED, 4 TX ON LED
Dimensions: 1.75"H x 7.5"D x 16.5"W (4.4cm x 19cm x 42cm)
Weight: 4.5lb. (2kg)
Power Requirements: 16V @ 800mA, nominal, AC/DC adapter supplied
Antenna Connectors: Dual female BNC connectors

HM-20U

Element: Back electret condenser
Polar pattern: Unidirectional cardioid
Frequency Response: 20Hz-20KHz
Sensitivity:-46dB ±3dB
Output impedance: 1 KOhms ±5%
SPL max: 135dB
Power Supply: 1.5-12V DC
Capsule: 5x8mm
Cable: 1.5mm diameter, 1M (40")
Weight: 0.6oz.(18g)
Output connector: 3.5mm mini-locking plug or 3-pin mini-XLR
connector
Mini-XLR Wiring: GND = Pin 1, Hot (+) = Pin 3 --> 2K Ohms --> Pin 2
3.5mm Plug Wiring: GND = Sleeve, Hot (+) = Tip Foam windscreen and extra boom assembly included

 

In accordance with California's Prop 65 Compliance Law, Regulation Requires us to Inform California Customers of the Following Warnings for All Products:

*Warning:* This product can expose you to chemicals including wood dust, which is known in the state of California to cause cancer or birth defects or other reproductive harm. For more information, please go to www.P65Warnings.ca.gov

*Warning:* This product can expose you to chemicals including Di-isodecyl phthalate, which is known in the state of California to cause cancer or birth defects or other reproductive harm. For more information, please go to www.P65Warnings.ca.gov

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