WHAT IS THE SM58 + X2U BEST SUITED TO?
The SM58 is the most popular choice of vocal artists all over the world. Combined with the X2u, it can be easily connected directly to a computer without the need for any additional hardware. This makes it ideal for a home recording studio or recording on the move.
WILL IT WORK WITH MY COMPUTER?
The X2u is compatible with Windows Vista, XP, 2000, 7, 8, 10 and Mac OS X (10.1 or later). It features a built in headphone jack so that you can monitor the sound without the need for an additional sound card. It also includes an integrated pre-amp with mic gain control which allows you to control the signal strength.
AND WHAT ABOUT LATENCY?
Latency can be described as the time taken between initiating a request in the computer and receiving the answer. You can expect zero latency monitoring with the X2U. Zero-latency monitoring means real-time playback and multi-tracking without delay and 16-bit/48 kHz sample rate provides better-than-CD-quality audio.
With Monitor Mix Control (which is featured on the X2U) you can blend the mic signal and audio playback as you desire.
WHAT IF I NEED PHANTOM POWER TO USE THE X2U WITH MY OTHER MICROPHONES IN THE FUTURE?
The X2U is equipped with Phantom Power so you can also use your favourite condensers together with the X2U. Any XLR mic can be plugged directly into your computer using the X2U.
SM58
Dynamic microphone cartridge with a frequency response tailored with brightened mid-range and bass rolloff to deliver legendary warm and clear vocal reproduction
Uniform cardioid polar pattern isolates vocal sound sources while minimizing background noise
Internal pneumatic shock mount minimizes handling noise
Legendary construction and versatility for consistent performance under rugged use and abuse on stage or in the studio 
X2U
USB Plug and Play connectivity
Compatible with Windows Vista, XP, 2000, 7, 8, 10 and Mac OS X (10.1 or later)
Integrated pre-amp with Microphone Gain Control allows control of input signal strength
Zero Latency Monitoring for real-time playback and multi-tracking without disorientation
Headphone jack with volume control for monitoring
Monitor Mix Control for blending microphone and playback audio
Provides +48V phantom power for use with condenser microphones
Includes 3 m USB cable and zippered pouch
Further technical specifications:
Frequency Response: 20 to 20,000 Hz +/- 1 dB
Power Requirements: USB-powered, 500 mA, maximum
Digital Noise Floor (20 Hz to 20 kHz, A-weighted)
Minimum MIC GAIN setting: −81 dB FS
Maximum MIC GAIN setting: −78 dB FS
Sampling Rate: up to 48 kHz
Bit Depth: 16 bit
Peak Signal Indicator (Tri-color)
OFF: −30 dB FS
Green: −30 to −12 dB FS
Yellow: −12 to 0 dB FS
Red: >0 (digital converter clipped)
Adjustable Gain Range: 40 dB
Headphone Output: 3.5 mm (1/8 inch)
SM58
Transducer Type : Dynamic
Polar Pattern: Cardioid
Frequency Response: 50 Hz - 15 kHz
Sensitivity (1 kHz): -54,5 dBV/Pa / 1,88 mV/Pa
Weight: 298 g