Audio-Technica is known for producing reasonably priced audio equipment that both hobbyists and professionals appreciate and the M2M is an excellent example. Among their lineup, the Audio-Technica M2M sits in the sweet-spot where price is accessible for beginners while quality is good enough for experienced users, which in turn allows it to maintain its high ratings.

This bundle includes the M2L transmitter with 100 user selectable UHF frequencies, and the M2R receiver which lets you mix two independent signals right at the receiver pack. This configuration gives direct control to the performer, ideal for bands who don't have a team of techs to mix their sound for them. Other features include three rubber eartip sizes and the ability to use up to 10 complete M2 systems simultaneously in one venue.

Specifications:

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• Earphones: EP3
• Frequency Range: 575MHz-608MHz
• Number of Frequencies: 100
• Transmitter Input: 1 x XLR, 1x 1/4"
• Transmitter Output: 1 x XLR, 1x 1/4"
• Receiver Output: 1 x 1/8", XLR
• Receiver Power: 2 x AA Batteries
• Earphone Type: Buds
• Earphone Freq Response: 40Hz-20kHz
• Earphone Cable Length: 9.8"

Pros

Users and experts agree that the Audio-Technica M2M sounds great and performs well within expectations. Many customer reviewers commented that it has a lot of headroom, while the wireless range is good enough for the usual stage sizes. Some experienced users appreciate the M2's expanded input/output options. Most of the positive feedback came from vocalists, but other musicians also chimed in with their recommendations and high ratings.

Cons

Some users reported that ear buds feel cheap and flimsy, and recommended the use of 3rd party earphones. To be more specific, one bassist recommended the use of headphones to better hear the low-end thump of their instrument.

Overall

With its accessible price, flexibility and reliable quality, the Audio-Technica M2 is highly recommended for those who don't want to spend more than $600 on an IEM.

Japan based Audio-Technica has come a long way from manufacturing phonograph cartridges back in 1962, now they are considered as one of the biggest audio equipment manufacturers in the world. The Audio-Technica M3M showcases why the company continues to thrive in the face of stiff competition, it packs in impressive features while keeping the price much lower than what other brands offer.

The transmitter features an intuitive interface with LCD display, which you can use to mix two signal sources to achieve your preferred monitoring levels. You can have up to 16 M3 systems running on stage without any problems, or you can pair a single M3L transmitter with multiple receivers if you're just going for a single mix. Other features include built-in multi-level limiter and adjustable squelch for controlling annoying static noise.

Specifications:

• Transmitter: M3L
• Receiver: M3R
• Earphones: EP3
• Frequency Range: 575MHz-608MHz
• Number of Frequencies: 1321
• Transmitter Input: 1 x XLR, 1 x 1/4"
• Transmitter Output: 1 x XLR, 1 x 1/4"
• Receiver Output: 1 x 1/8"
• Receiver Power: 2 x AA Batteries
• Earphone Freq Response: 18Hz-18kHz
• Earphone Cable Length: 9.8"

Pros

Reviews have been consistent in saying that the Audio-Technica M3M performs exceptionally well, coming from both new and old users who have been working the M3M for years. Experienced drummers, vocalists, guitarists and engineers have mostly good things to say about their experience, specifically mentioning ease of use and sound quality as its finest features.

Cons

There are some users who complained about the receiver being bulky, while others find that batteries need to be replaced more often than what they wanted. There were also a few that had minor issues with the antennae, but they still gave the unit high ratings.

Overall

The Audio-Technica M3 is highly recommend for those who want a pro-level wireless IEM system that is still reasonably priced, yet can be expanded on.

There's no denying the popularity and reach of Shure, so it's not surprising to find them entrenched in this list, spearheaded by the PSM900, a versatile wireless IEM with extended connectivity and bandwidth options. This compact wireless system features Shure’s P9T transmitter with Group scan and Sync technology for convenient automatic configuration. There’s also the CueMode that allows for monitoring up to 20 mixes, and MixMode for creating custom mix of two channels. Another nifty feature is called “automatic gain control” which ensures signal reliability and clarity. The included Shure P9RA receiver runs on a rechargeable battery.

Specifications:

• Transmitter: P9T
• Receiver: P9RA
• Earphones: SE425CL
• Frequency Range: 470MHz-506MHz
• Number of Frequencies: 20 per band
• Transmitter Input: 2 x XLR/Combo
• Transmitter Output: 1 x 1/4" Headphones
• Receiver Output: 1 x 1/8"
• Receiver Power: Rechargeable
• Earphone Type: Bud
• Earphone Freq Response: 20Hz-19kHz
• Earphone Cable Length: 64"

Pros

Most users point to its personal mix capabilities as its major strength, satisfying even the most fickle vocalists and musicians who prefer traditional wedge monitors. The unit's build and sound quality were also mentioned by reviewers, with one even praising the quality and reliability of the power inlets. One expert reviewer described it as amazingly easy to use, thanks to its automatic sync'ing, intuitive front panel controls and metering. All in all, the Shure PSM900 is highly recommended by almost all of its users.

A gig review from FOH Online said, "The performers who used the PSM 900 system all told us that the sound was the cleanest, purest sound they had experienced with IEMs".

Cons

There was one user who found the antennae to be a bit loose, while another wished that the price was a bit lower.

Overall

If you're looking for a reliable professional-level wireless in-ear monitor system that you can expand on, then check out the Shure PSM 900.