One reviewer calls the iMainGo X iPod speaker's sound "surprisingly good" given the speaker's petite size, even at high volumes. Reviewers are generally fond of the iMainGo X's thoughtful features, which include an external microphone jack so you can take calls on your iPhone without removing it from the case, and an extra headphone jack so both you and a friend can listen to the same music without disturbing others. The iMainGo X also doubles as a sturdy case to protect your iPhone or MP3 player.
Downsides include the lack of a dedicated iPod dock; however, you can use the 3.5 mm jack to connect to any MP3 player. The lack of an external volume control can be frustrating; you make adjustments using your MP3 player or smartphone's touchscreen controls, which poses an obvious problem if you're using a phone or iPod without a touchscreen. The plastic cover that holds your device in place and protects the screen can also make the touch controls less precise. Although the iMainGo X's sound is surprisingly good, it becomes distorted at high volumes.
On the other hand, one reviewer points out that you can daisy-chain several of these units together if you need bigger sound. The unit has two power switches -- one on the outside, and one inside the case -- and if you accidentally leave the inside switch turned on, the battery can run down quickly. This may explain user complaints that the battery discharges quickly.
The iMainGo X receives plentiful reviews, which are almost always cautiously appreciative -- as long as you take the unit's small size into account. Some of the best professional reviews we found were from MacWorld, CNET and iSource.com, with additional, surprisingly good coverage from iPhoneJD.com, iPhoneLife Magazine and BerryReview.com. Amazon.com was a useful source of user reviews.
In this hands-on review, author Roman Loyola delineates the differences between the iMainGo X and its predecessor, the iMainGo 2. He likes the iMainGo X's input and output jacks, rechargeable battery and good sound (considering the size), but notes that the sound becomes badly distorted at high volume.
Review: Portable Sound Laboratories iMainGo X, Roman Loyola, April 5, 2011
CNET reviewer Jasmine France is a little concerned about the iMainGo X's high price tag, as compared to the iMainGo 2, but notes that it comes with some useful extras. She calls the sound quality "pretty decent," and describes it as clear of background hiss. She points out that because the speaker doesn't stay upright on its own, the music ends up being projected straight up, and the unit is "kind of heavy overall," even though it's compact.
Review: iMainGo X: An All-in-One Speaker Case for iPods, Jasmine France, Oct. 27, 2010
In one of the more detailed, balanced reviews we found, the author calls the iMainGo X an "interesting departure from the norm," noting that it produces very loud, but rather muddy sound and that the confusing power switches can cause you to accidentally run the battery down. There's also a short, 35-second video walk-through of the features, including a chance to listen to the iMainGo X's audio performance.
Review: Review: iMainGo X Portable Speaker System, "Thomas", Aug. 9, 2011
The author, an attorney writing for other attorneys, reviews the iMainGo X in some depth and provides links to external reviews of previous iMainGo models. He calls the unit's sound "fantastic" and says "there is a lot to like about this device," but wishes the plastic touch-through panel were a little longer. He also notes that the sound distorts at maximum volume.
Review: Review: iMainGo X -- iPhone Case and Speaker, Jeff Richardson, Sept. 12, 2011
5. iPhoneLife Magazine
The author of this report gives this case/speaker combo a rating of 4 stars out of 5, and gives a decently detailed account of his hands-on testing. He points out that the case is too bulky to fit in your pants pocket -- it's "the size of a small purse" -- but says it provides surprisingly good sound, even at high volumes.
Review: iMainGo X Product Review, Mike Riley, Dec. 5, 2010
This is the only review we found that tested the iMainGo with a BlackBerry instead of an iPhone or iPod. The author describes the unit as "rather huge" compared to other portable speakers, but it works well with his BlackBerry Torch and the music is "indeed top notch." However, he finds navigating the BlackBerry Torch's controls almost impossible, due to the lack of a touchscreen. On the upside, as the author points out, you can always use the built-in microphone jack to sing karaoke with the iMainGo X.
Review: Guest Review: iMainGo X Speaker, Terrence T, April 18, 2011
Reviewer Shane McGlaun reports that the iMainGo X sounds "fantastic," and likes being able to control his touchscreen phone through the plastic shield. However, he takes issue with having to open the case in order to take phone calls.
Review: iMainGo X Ultra-Portable Speaker Review, Shane McGlaun, Oct. 26, 2010
More than 50 Amazon.com reviewers give the iMainGo X an average rating of 4.0 out of 5 stars. Although some feel the iMainGo X is pricey for such a small speaker, many like the sound and how small and light it is while still offering protection from damage. The most common complaint was that the battery ran down too quickly.
Review: iMainGo X Portable Stereo Speaker and Protective Case for iPhone, iPod, and MP3 Players, Contributors to Amazon.com