Nady 401X Quad LT Wireless Lavalier Microphone System  

Product #277413

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Item Note:

This product has been discontinued but may be available as a Open Box item.

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See All Nady Lavalier Microphone Wireless Systems

A complete 4-Lavalier system!

The Nady 401X Quad LT Wireless Lavalier Microphone System features the 401-HT receiver with four Lavalier mics and body-pack transmitters. Four independent VHF receivers in one convenient housing allows operation of four wireless systems at the same time. This system offers high performance, unmatched transparent audio with 120dB dynamic range and up to 250' optimum line-of-sight operation. Front dual antenna jacks for either onboard or remote switch allows audio muting the transmitter, while maintaining signal integrity.

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:

  • Four independent VHF receivers in one convenient housing allows simultaneous operation of four wireless systems
  • 120dB dynamic range
  • 30Hz-18kHz frequency response
  • Up to 250' optimum line-of-sight operation
  • Front dual antenna jacks for either onboard or remote antennas
  • Off/Standby/On switch allows audio muting the transmitter while maintaining signal integrity
  • Individual channel XLR output jacks, volume and RF mute controls
  • Rear panel four-channel-mixed 1/4 output jack
  • Front panel power ON LED, TX ON and AF signal level LED displays
  • Noise-free transmitter ON/OFF operation
  • Rugged, all-metal construction that is single-space rackmount unit

401X Quad LT Wireless Lavalier Microphone System Specifications:

  • Overall 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 typical ” up to 500+ feet optimum line-of-sight

    Frequency Group 1
    Channel A = 171.905 MHz
    Channel B = 185.15 MHz
    Channel D = 209.150 MHz
    Channel N = 197.150 MHz

    Frequency Group 2
    Channel E4 = 173.8 MHz
    Channel H = 191.3 MHz
    Channel F = 203.4 MHz
    Channel E = 215.2 MHz

    401X Quad Transmitter:
    Audio Inputs: 3.5mm mono locking jack 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" X 2.4"X 0.8" (10.4 X 6.1 X 2.0 cm)
    Weight: (w/o battery): 3.6 oz (101 g)

    401X Quad 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/600 ohms
    Receiver: 2.1 mm barrel-type DC input jack (tip=positive)
    LED Indicators: 1Power ON LED, 4 AF LED, 4 TX ON LED
    Dimensions (H x W x D): 1.75"x 7.5"x 16.5"(4.4 x 19 x 42 cm)
    Weight: 4.5 lbs (2 Kg)
    Power Requirements: 16V @ 800mA, nominal, AC/DC adapter supplied
    Antenna Connectors: Dual female BNC connectors
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by PowerReviews
Nady401X Quad LT Wireless Lavalier Microphone System

(based on 2 reviews)

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Reviewed by 2 customers

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(4 of 4 customers found this review helpful)


Does the job


from Port Royal, PA

Comments about Nady 401X Quad LT Wireless Lavalier Microphone System:

Well, like many products made in China these days, it is not top notch. But then look at the price. Top notch is not what Nady is selling here. Having said that, I checked it out immediately after it arrived. It functioned OK. I hookled it up to my sound system and went 120 ft away from the antenna. I could hear it working alright. I then took it to a program where a number of people in the audience were given a chance to speak using the lavalier mics. A different amplification system from what I had at home was used there. No one had a problem hearing what was being said using the mics. In fact, only few people there knew that the mics were being tested. They did OK. I have a recording studio, and I certainly would not dream of using those mics for any recording, but Iif you just want microphones in a lapelle, cordless situation and you are not looking for squeaky, squeaky clean sound, then this is a good inexpensive system to invest in. One thing that was left out in the instruction for use which at first confused me was that there are four XLR outputs (one for each mic) and ONE quarter-inch output for all four mics at the back of the antenna box. I found out that if you used the XLR outputs, the volume controls on the front of the antenna were not operational, so you would have to use the volume controls on your own amplifier of mixer. On the other hand if you used the single, quarter inch output which was to operate all the mics, then the individual volume controls on the front of the antenna would then work to allow you to control each mic volume. THEY COULD HAVE SAID THAT IN THE OWNER'S MANUAL rather than for me having to find out. I almost thought that the volume controls were useless (and naturally I thought that cosomething was wrong with the antenna box) when I plugged in my XLR cable. Now I know that it is part of the design. Anyway, if you will buy a $40 or $50 microphone and be happy with that, then you will get about the same quality as the NADY mics.

(8 of 8 customers found this review helpful)


Buy Something Else


from Tampa, FL

Comments about Nady 401X Quad LT Wireless Lavalier Microphone System:

My church purchased this system and it was totally worthless. The body packs felt cheap and flimsy, the RF signals seemed weak and the audio quality was horrible. I'm still looking for a good mulitple lav system, but this is certainly not it.

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