Shure has taken a much different approach to XLR to USB conversion than its nearest competitor, the Blue Icicle.

While the Icicle relies solely on software for adjustments, the S2U is surprisingly feature-rich for such a compact device with thumb dial controls for gain, volume and monitor level.

Arguably, even handier is the 1/8” headphone output at the side of its cylindrical housing. This allows you to monitor recordings in real-time and bypasses your computer soundcard. In practice this is helpful because you don’t feel chained to your computer while wearing headphones as you can place the X2U anywhere a XLR cable allows.

As one would expect it provides +48V Phantom power for use with condenser microphones. The Phantom power button with corresponding blue indicator light is a nice touch as is the green light to show you the USB connection is functional.

Build quality is excellent despite the somewhat unassuming appearance in photos. It’s of a formidable weight for such a small device. While this makes it roadworthy, you need to conscious of this factor when hooking it up. Although you can plug the X2U directly into a XLR mic sans the XLR cable, I wouldn’t recommend it as this creates unnecessary strain on the connectors.

The sample rate is 16-bit, up to a 48 KHz. Overall sound quality is transparent and clean, as you’d expect from Shure. One weakness is you’ll need to tweak hardware gain and volume levels along with software volume to get the lowest noise floor possible. If you don’t like adjusting dials and don’t require this level of control, the Icicle may be a better option.

The box includes a padded pouch and USB cable so if you don’t have any XLR cables kicking around, I recommend that you pick one up.

Overall the Shure X2U is a good device to have in one’s audio toolkit. Those who don’t have a pro audio interface will appreciate the comprehensive controls. For the audio buff that has everything, it may defeat the purpose, as the extra control will be more of a distraction than a big help with a multi-microphone setup.

I’ve often recommended the ATR2020-USB as an alternative to the highly regarded Blue Yeti. As basic as it is in terms of functionality (just one polar pattern) and hardware controls (there are none), for some users and circumstances a simple solution with rock-solid build quality trumps all.

More recently Audio-Technica has released the ATR2500-USB. It still has the quality feel and great sound of the 2020, however Audio-Technica has added features so it better competes with top offerings from Blue and Samson.

The finish, though sporting a luscious silver sheen in promo shots is actually matte. Adding to the unassuming appearance, the cylindrical exterior is the similar to a slew of other Audio-Technica mics, both XLR and USB. Audio-Technica knows what works and sticks to what does rather than attempting to wow you like Blue.

Most notably there is now a headphone jack at the front so now you can do real-time monitoring rather than relying on your native soundcard output with less than ideal latency. The buttons with arrows pointing up and down respectively control the volume of the headphones. These additions are the biggest selling point of the 2500 over the 2020.

Arguably Audio-Technica has only gone halfway with the hands-on controls (compared to the Yeti benchmark). While it’s handy to have headphone level buttons at your fingertips you’ll still need to adjust the mic gain level via software. From a design philosophy perspective this awkwardly sits at the middle ground; although the headphone functionally is welcome it would be more intuitive to either focus on real knobs and buttons or leave it all up to well-presented software.

Like it’s older brother the 2020, the ATR2500-USB features just the meat and potatoes cardioid polar pattern, making it ideal for podcasting, voiceovers, and home studio work. While it’s nice to have the option to do omnidirectional recordings for room ambiance or to capture the several people on-the-fly, Audio-Technica knows most people won’t need it at all, and others rarely.

Included in the box is a USB cable, manual, and mounting hardware so you can have it freestanding on your desk. The stand you get is a cheap plastic affair, which is to be expected in this price bracket. Likely you’ll want to upgrade to a solid desk stand right out of the gate since they can be picked up for less than $15.

Sound quality is crisp, and well defined for the price as we’ve come to expect from Audio-Technica’s offerings. Zero-latency monitoring gives musicians in particular a huge advantage; singing or playing detailed parts is obviously much easier when delay, no matter how subtle, is eliminated.

Overall the ATR2500-USB is one of the best USB mics currently available, knocking its predecessor the 2020 out of the running. The lack of a gain control and non-switchable polar patterns keeps it from topping the Yeti.

To date Blue’s Yeti hasn’t had much competition in terms of popularity.  The Snowball has done well too while other USB mic manufacturers have struggled to keep up with Blue’s success.

Audio-Technica, a heavy hitter in the realm of pro studio gear, hasn’t rested on its laurels. The AT2020 is a fine USB mic and one of the bigger threats to the dominance of the Yeti.

Both are great mics but in different ways, which comes down to differing design principles.

The Yeti has physical knobs and buttons both on the front and back, making it ideal for tweakers not big on software controls.

The AT2020 in contrast looks nearly identical to Audio-Technica XLR mics. Hardware controls are absent so gain levels must be adjusted via software.

Most notable strengths of the Yeti are features and value. It handles four polar patterns: cardioid, bidirectional, omnidirectional, and stereo. Many top-end studio mics can’t do all that. No matter the situation, from interviews to instrument recording, to capturing the ambiance of the room, the Yeti is flexible enough to fit the task.

Strengths of the AT2020 are build quality and simplicity (geared towards controlling everything from the computer). While the AT2020 only does a cardioid pattern, this is all most people need anyhow. The build is closer to studio mics rather than USB mics, which tend to have cheap plastic parts. If you’re taking it on the road or recording a variety of characters voices or instruments, the importance of this advantage is boosted. Lastly studio engineers working on location will prefer having all controls at their fingertips and out of the way of the client just as when working with XLR mics.

Moving to sound quality, beyond tech specs there isn’t a world of difference. The AT2020 may have a slight edge overall, but the slight variations in frequency peaks and dips come down to personal preference. On paper the Yeti goes up to 20kHz while the AT2020 maxes out at 16kHz. In practice most adults can’t hear frequencies in that range rendering the difference irrelevant.

Looking at the most noteworthy advantages of each it’s easy to see why the Yeti is chosen more often. It’s more in line with the needs of the self-recording musician or DIY podcaster while the AT2020 is closer to what a pro studio owner would want in a USB mic.

If you’re still on the fence there are full individual reviews of the Blue Yeti and Audio-Technica AT2020 that go into the features and sound quality in greater detail.

The first condenser mic was invented in 1916 by E. C. Wente. Microphones have remained analog since then until recently with the popularization of USB-enabled devices.

Although it’s an exciting innovation, USB options aren’t for everyone or for every situation.

While USB mics have much to offer in the area of plug-and-play convenience, the trend hasn’t taken over the high-end market. For the time being, USB mics are intended for musicians with a limited budget, frequent travelers, and podcasters.

The first advantage of USB microphones is price. You don’t need an audio interface that essentially transforms analog XLR input into a digital signal. While most musicians would want this anyhow for instrument recording, podcasters, vocalists and casual tinkerers don’t necessarily.

USB mic’s greatest advantage may be portability and ease of use. For people that prefer to work on a laptop, mobile device and on the go, the ability to plug in directly without dealing with external gear is a big plus.

Where most USB mics fall short is sheer sound quality and technical limitations. Don’t give me wrong, a Blue Yeti sounds great for the price. However in higher price brackets, classics like the Pearlman TM-1 or L47MP MKII are on a different level. Although Blue has attempted to appeal to the pro market with the Yeti Pro, USB mics still have a long way to go before they can compete with the best XLR mics.

The vast majority of USB mics are 16-bit (CD quality) which by today’s standards is adequate but far from cutting-edge. If you’re doing a YouTube video, a podcast or even a vocal track on a home demo it’s more than good enough. However it’s a noticeable notch below the sound you’d expect from a pro studio.

The good news is it’s only a matter of time before USB mics have made the jump to 24-bit en masse. The Yeti Pro has set the stage as one of the first. The issue is high resolution is to some degree wasted when the microphone capsule isn’t detailed enough to fully take advantage of the high spec. It’s akin to point-and shoot cameras with high megapixel counts but mediocre quality lenses.

For many the best option is to have both USB mics and analog XLR mics on hand. Big name artists are fully taking advantage of USB devices when on the road. However when in the studio you’d better believe they’re reaching for a vintage Neumann or SM57. It’s all about choosing what is best for the job, and considering external factors.

If you’re curious about the best USB microphones, read my roundup of the top 5 models.

Not long ago the idea of home recording was revolutionary. For the first time ever musicians were able to make impressive recording sans the hourly studio fees.

The latest step in this revolution is increased interest in maximum portability. Why chain yourself to your desk at home when music can be captured virtually anywhere?

Leading the trend Apogee has released JAM, and MiC: a guitar input and digital microphone, respectively, for iPad, iPhone and Mac. Before that the Duet and ONE made strides in the direction of increase simplicity and travel-friendliness.

When I first got into recording over a decade ago I was bamboozled into believing the more flexibility and features the gear had the better. Experience has taught me just the opposite is true.

Apogee’s choice to make drivers only for Apple operating systems is a plus rather than a minus. In practice company’s have big challenges in keeping up with driver updates, and more supported operating systems leads to software development efforts being spread too thin.

The Jam and MiC are incredibly specialized in their configuration and applications, taking this Zen-like product philosophy even further.

While I love the Duet and originally picked it up to strip down my setup, ironically I’ve found it’s often more than I need for on-the-fly recordings and overdubs. The ONE concept is fantastic but again if I plan on spending an afternoon on overdubs the built-in mic is a wasted feature.

What’s really great about owning both JAM and MiC is you can travel with only the tool you need to get the job done.

For me, the more I can minimize production concerns, the better the performances are. Having only the features you need at your fingertips and eliminating the ones you don’t helps achieve.

As multitudes of people carry an iPhone with them everywhere, the ability to pick up the JAM or MiC at the last minute is a groundbreaking possibility. In addition, the use of the touch screen on the iPad is amazing in a rehearsal situation while a guitar is strapped to your shoulder.

Finally next-gen devices can be used to produce professional-quality recordings. As this is just the beginning it will be fascinating to see where this leads Apogee and others.

Pictured: Apogee MiC with Zacuto Zgrip.