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Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System  (Open Box)
Ships Internationally
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Product# 485603
OVERVIEW

A frequency-agile True Diversity UHF wireless receiver with bodypack transmitter and lav mic.

The Audio-Technica ATW-3131b Lavalier Wireless System is part of Audio-Technica's third-generation 3000 Series wireless systems. It includes an Audio-Technica ATW-R3100b receiver, ATW-T310b UniPak transmitter, and an Audio-Technica AT831cW lavalier microphone. The wireless system offers 996 selectable UHF frequencies and features for clear sound and intuitive operation.

Audio-Technica has simplified the selection of usable frequencies, increased system reliability, and illuminated transmitter screens for clear reads on dark stages. It all adds up to the luxury of rock-solid, richly detailed high-fidelity sound.

The versatile Audio-Technica ATW-T310b UniPak body-pack transmitter features a secure 4-pin locking connector compatible with a wide range of microphones, as well as a guitar cable. A 3-position sliding cover on the transmitter's control panel prevents accidental shut-off or channel-switching. A locking battery compartment provides a more secure latch and more robust design.

The Audio-Technica ATW-R3100b receiver is equipped with automatic frequency scanning for easy setup. It also features true diversity reception. Two antennas feed two completely independent RF sections on the same frequency; automatic logic circuitry continuously compares and selects the superior received signal, providing better sound quality and reducing the possibility of interference and dropouts. Soft-touch controls provide convenient access to a variety of functions, while a backlit LCD information display provides constant monitoring of system operation, including indication of the transmitter's battery status. The receiver is half-width for a standard 1U 19" rack mount; rack-mount adapters are included.

An advanced Digital Tone Lock tone squelch system in the ATW-R3100b receiver opens only when a 3000 Series transmitter 3000 Series Installation and Operation is detected, reducing the possibility of interference. As a result, 3000 Series transmitters and receivers must be used together and should not be used with components from other Audio-Technica wireless systems, or with those of other manufacturers. Exception: 3000 Series components are compatible with Audio-Technica 1800 Series wireless system components.

AT831cW lavalier microphone is a cardioid condenser mic terminated with locking 4-pin connector designed speciifcally for the A-T UniPak body-pack wireless transmitters. It features a 55" (1.4m) cable and Includes a windscreen and clothing clip.

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: www.fcc.gov/cgb/wirelessmicrophones.

FEATURES
Includes a 
ATW-R3100b receiver, ATW-T310b UniPak transmitter and AT831cW lavalier microphone
996 UHF frequencies
Antenna power available for powered antennas & other in-line RF devices
Nine pre-coordinated frequency scan groups simplify selection of usable frequencies in a multichannel wireless system
True Diversity operation reduces dropouts
Advanced digital Tone Lock squelch effectively blocks stray RF and communicates transmitter data for receiver display
Transmitter offer backlit LCD & dual-color LED
Locking battery compartment with secure latch and robust design
Ground-lift switch helps eliminate audible hum caused by ground loops
Balanced and unbalanced audio output jacks

AT831cW Cardioid Condenser Lavalier Microphone
Terminated with locking 4-pin connector for A-T UniPak body-pack wireless transmitters
55" (1.4m) cable
Includes windscreen and clothing clip
SPECIFICATIONS
Overall System 
UHF Operating Frequencies (Frequency Range/Number of Frequencies)
Band C: 541.500 to 566.375MHz/996
Band D: 655.500 to 680.375MHz/996
Not all frequencies are available in all areas. Please check with local regulations.
Minimum frequency: Step 25kHz
Modulation mode: FM
Maximum deviation: ±35kHz
Dynamic range: > 110dB (A-weighted), typical
Total Harmonic Distortion: < 1% (at 1kHz, ±17.5kHz deviation)
Operating range: 100m (300'), typical
Open range environment with no interfering signals.
Operating temperature range -5C to +45C, 23F to 113F
Battery and LCD performance may be reduced at very low temperatures.
Frequency response: 70Hz to 15kHz (+1dB, -3dB)

ATW-R3100b Receiver
Receiving system: True diversity
Image Rejection: 60dB nominal, 55dB minimum
RF Sensitivity: 20dBuV at 60dB S/N ratio (50? termination)
Maximum Output Level:
XLR, balanced: +9dBV
1/4" (6.3mm), unbalanced: +7dBV
Antenna Input:
BNC-type, 50?
Bias voltage 12V DC, 60 mA, each
Power Requirements: 12-18V DC, 500 mA
Dimensions (WxDxH): 210.0mm (8.27") x 164.4mm (6.47") x 44.0mm (1.73")
(Not including BNC connectors or feet)
Net weight: 1.1kg (38.8oz.), without accessories
Accessories:
Included Two flexible UHF antennas
AC adapter (country dependent)
Rack-mount adapters

ATW-T310b UniPak Transmitter
RF power output:
High: 30mW, Low: 10mW (switchable), at 50?
Spurious emissions: Following federal and national regulations
Input Connection Four-pin Locking Connector (Pin 1: GND, Pin 2: INST INPUT,
Pin 3: MIC INPUT, Pin 4: DC BIAS +5V)
Batteries: Two 1.5V AA, not included
Battery Life: High: 6 hours (alkaline), Low: 8 hours (alkaline), depending on battery type and use pattern
Dimensions (WxdxH): 66.0mm (2.60") x 24.0mm (0.94") x 87.0mm (3.43")
Net weight: 81g (2.9oz.), without batteries
Reviews
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Review Snapshot

by PowerReviews
Audio-TechnicaATW-3131b 3000 Series Lavalier Wireless System
 
4.9

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (11)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Pros

  • Vocals (8)
  • Presentation/spoken word (6)

Cons

No Cons

Best Uses

No Best Uses
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Reviewed by 12 customers

Displaying reviews 1-12

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(6 of 6 customers found this review helpful)

 
5.0

Audio-Technica's 3000 Series gives me adaptability!

By Rob Nelson

from California

See all my reviews

Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

I work as an A/V Tech in the movie business and we use these units for our sales presentations, company meetings, and special events. I've used them with lavalieres, headset mics, and guitars. The adjustable audio input level means someone soft spoken can be heard without cranking up the gain on the mixer and opening that feedback window. The range, clarity, and complete flexibility these units provide us is tremendous! I was so impressed with the first one that we have added 2 additional units. The President of our company came up to me after his last company meeting and wanted me to order an additional unit just for him. I had him mic'd up with the AT893cW headset mic and had many persons in the company complementing me over how great he sounded. I don't usually give 10's but they are fantastic!
Locking battery compartment and sliding button cover on transmitter prevent 'accidents'.High-pass filter eliminates low frequency rumble.Variable audio input level (-6, 0, +6, +12db) make adjusting for different presenters easy.Over 900 user selectable frequencies guarantee clean and interference free performanceTrue diversity receptionSelectable High or Low Power RF settings for maximum range or long battery life.Input selectable for Lo-Z or Hi-Z use.
Well built units, small and easily transportable.
I believe the features and performance of this unit would be a bargain even at the full MSRP of $799.99. With available headset mics, handheld mics, and instrument cables I can cover speakers/presenters, singer/songwriters, or musicians with the same wireless systems because of AT's Hi-Z or Lo-Z functionality.

(2 of 2 customers found this review helpful)

 
5.0

Awesome wireless!!!

By Bassdude64

from Marion, IN, USA

Pros

  • Instruments

Cons

    Best Uses

      Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

      I put this wireless in my mesa bass rig and it has performed flawlessly. I was looking at another manufacturer and a friend suggested this one. It was less expensive than the one I was looking at and I couldn't be happier with the results. I have used it indoors and outdoors with absolutely no issues. I couldn't recommend it enough for anyone wanting to go wireless.

      • What best describes the environment the product was used in?:
      • Intermediate
      • What best describes your level of audio knowledge?:
      • Musician
      • How long have you used this product?:
      • Up to a year
       
      5.0

      This product help me a lot.

      By djthomasdang

      from Burnsville, Mn

      Pros

      • Clear Sound
      • Compact
      • Easy To Use
      • Lightweight
      • Versatile

      Cons

      • Limited Functions
      • Pricey / Poor Value

      Best Uses

        Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

        I use these mics in the house of worship

        • What best describes the environment the product was used in?:
        • House of Worship
        • What best describes your level of audio knowledge?:
        • Expert
        • How long have you used this product?:
        • Over a year
        • Reliability:
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        5.0

        I have used many of these and they have always worked well.

        By RussellN

        from Abilene, Texas

        Pros

        • Clear Sound
        • Compact
        • Durable
        • Lightweight
        • Versatile

        Cons

        • better read the instructions

        Best Uses

          Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

          These units sound great, I have used as many as 16 with 16 other brands at the same time with no problems, better to scan the system every time you use them no matter where you are, as there will be surprises, other wirelesses you did not know about and TV stations. The hand held condenser sounds as good as any mike I have used, high pass filter is a handy feature, mid high boost is handy too. Mute/Power loc comes in handy for fidgety actors, speakers and kids. double lock battery compartment is a pain, but works. You must train people how to use the hi-rose connectors properly on the belt packs or tell em to keep their hands off. You must take the time to train the user on the handheld mute and belt pack mute if you don't want problems. Alert light solves a lot of problems when using these systems, also when scanning a bunch of units, make sure the transmitters are spread out a bit, or you will have a lot of harmonics and run out of channels. I have been using wireless since the 80's and what you get for the $ is incredible, I had a 4 channel Vega system from the 80's, you can buy 12 of these for what those cost. You must read the instructions and understand them to get the best performance out of them. been using these systems for over 9 years. Wish the belt packs and mic cases were metal. But then you would just buy the 4000s....:)

          • What best describes the environment the product was used in?:
          • Theater
          • What best describes your level of audio knowledge?:
          • Expert
          • How long have you used this product?:
          • Over a year
          • Reliability:
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          •  
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          4.0

          "A Great System"

          By Paul88

          from Scottsboro, AL, USA

          Pros

          • Vocals

          Cons

            Best Uses

              Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

              I have the ATW 341bc system and I like it a lot. I like the simplicity of set-up. I like the size and shape of the transmitter, it has a great feel to it, it doesn't feel cheap, and it also produces great sound. I have ordered and just received the ATW 371bc condenser transmitter to go along with it. These are the types of transmitter that needs to come with the digital system.

              • What best describes the environment the product was used in?:
              • Intermediate
              • What best describes your level of audio knowledge?:
              • House of Worship
              • How long have you used this product?:
              • Up to a year
              • Reliability:
              •  
              • Audio Quality:
              •  
              • Durability:
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              • Ease of Use:
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              5.0

              Great set of features, sound quality, and value

              By RossW

              from Philadelphia area

              Pros

              • Presentation/Spoken Word
              • Vocals

              Cons

              • holder is tight - could be easier to release mike.

              Best Uses

                Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

                Purchased set of six hand-held systems for support of an a cappella chorus. Love them! The chorus immediately noted an increase in sound quality over our previous systems. I love the clear readout of channel, AF and RF strength, etc. -- especially the remote battery monitor. That's saved our bacon during performances!

                Good noise-free handling characteristics.

                • What best describes the environment the product was used in?:
                • Expert
                • What best describes your level of audio knowledge?:
                • Live Sound
                • How long have you used this product?:
                • Over a year
                • Reliability:
                •  
                • Audio Quality:
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                5.0

                Outstanding Wireless System

                By irbyk

                from McLean, VA, USA

                Pros

                • Film/Video Production
                • Presentation/Spoken Word
                • Vocals

                Cons

                  Best Uses

                    Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

                    While there are better AT Wireless systems, the 3000 series gives outstanding results for use in meeting, convnetions and special events. I have used the 3000 series for vocalists in bands that perform at our events with no complaints and excellent sound reproduction. We own 8 systems and have never had a problem either with cross talk or interferience. We have had minor hits when the batteries are low and need to be replaced. We have never had to change frequencies because of interference.

                    • What best describes the environment the product was used in?:
                    • Intermediate
                    • What best describes your level of audio knowledge?:
                    • Corporate/Government/School
                    • How long have you used this product?:
                    • Over a year
                    • Reliability:
                    •  
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                    5.0

                    Great versatility and clean power!

                    By MaidensIV

                    from Loudonville, OH, USA

                    Pros

                    • Instruments
                    • Vocals

                    Cons

                      Best Uses

                        Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

                        We run 10 of these 3000 Series systems with great fun and success! They are powerful clean and have a great roaming range! We never have a problem with them cutting out or interference. The auto scan is fabulous and I rarely have to use squelch. We use them with 4 DPA vocal headsets, Violin, Viola, Bodrans, Taps...ect.

                        • What best describes the environment the product was used in?:
                        • Intermediate
                        • What best describes your level of audio knowledge?:
                        • Live Sound
                        • How long have you used this product?:
                        • Over a year
                        • Reliability:
                        •  
                        • Audio Quality:
                        •  
                        • Durability:
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                        • Ease of Use:
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                        5.0

                        This product is excellent

                        By BikerOH

                        from Hartville, OH, USA

                        Pros

                        • Presentation/Spoken Word
                        • Vocals

                        Cons

                          Best Uses

                            Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

                            I purchased this wireless handheld for live vocal applications. The audio quality is great, excellent gain with no feedback issues, no interference. What else can I say, I'm very pleased with this microphone

                            • What best describes the environment the product was used in?:
                            • Intermediate
                            • What best describes your level of audio knowledge?:
                            • Live Sound
                            • How long have you used this product?:
                            • Up to a year
                            • Reliability:
                            •  
                            • Audio Quality:
                            •  
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                            5.0

                            Best wireless system I have ever used.

                            By MysticMace

                            from Mystic, CT

                            Pros

                            • Presentation/Spoken Word
                            • Vocals

                            Cons

                              Best Uses

                                Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

                                The 3000 series microphones are really great. I have used mine for many applications -- a rock band, a worship band, in an acoustic setting, for spoken word, and even in a pinch for recording. The set-up of the system is exceptionally simple. The use of the microphone power/stand-by switch is very intuitive and the battery life has been very good as well. The sound quality I have found to be exceptional, even in very soft settings. The gain settings make it very easy to adapt to any live situation.

                                • What best describes the environment the product was used in?:
                                • Intermediate
                                • What best describes your level of audio knowledge?:
                                • Live Sound
                                • How long have you used this product?:
                                • Up to a year
                                • Reliability:
                                •  
                                • Audio Quality:
                                •  
                                • Durability:
                                •  
                                • Ease of Use:
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                                5.0

                                Great product, even better investment

                                By AMSofSD

                                from North Central Plains, US

                                Pros

                                • Presentation/Spoken Word
                                • Vocals

                                Cons

                                • occassional 'mute' from some users

                                Best Uses

                                  Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

                                  Having used AT3K systems extensively, both lav and handhelds, they get two thumbs up. We use them primarily with praise and worship teams, but also for spoken word with regional and national speakers. I'm a fan of the 831 uni lavs for sound quality, the beltpacks are extremely durable, have never had interference problems with 10+ freqs in use at a time. I love the protective inserts to keep stray hands from the bodypack controls! The handhelds work well for vocals, effective pattern control for our uses. My only concern - the 'mute' on the handheld transmitters can be inadvertently activated by nervous tapping fingers - I'd love to see a 'lockout' on these. Five stars from me - we'll keep on spec'ing them and using them. Thanks AT!

                                  • What best describes the environment the product was used in?:
                                  • Expert
                                  • What best describes your level of audio knowledge?:
                                  • House of Worship
                                  • How long have you used this product?:
                                  • Over a year
                                  • Reliability:
                                  •  
                                  • Audio Quality:
                                  •  
                                  • Durability:
                                  •  
                                  • Ease of Use:
                                  •  
                                   
                                  5.0

                                  This mic sounds great!

                                  By Raph

                                  from Framingham, MA, USA

                                  Pros

                                  • Presentation/Spoken Word
                                  • Vocals

                                  Cons

                                    Best Uses

                                      Comments about Audio-Technica ATW-3131b 3000 Series Lavalier Wireless System:

                                      I bought the ATW3141b couple months ago and I'm using at my church.

                                      I love the sound quality and the battery meter on the receiver and transmitter.

                                      • What best describes the environment the product was used in?:
                                      • Intermediate
                                      • What best describes your level of audio knowledge?:
                                      • Live Sound
                                      • How long have you used this product?:
                                      • Over a year
                                      • Reliability:
                                      •  
                                      • Audio Quality:
                                      •  
                                      • Durability:
                                      •  
                                      • Ease of Use:
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