Headphone Amp/DAC Reviews

Performance
Features
Ergonomics
Value

AT A GLANCE
Plus
PC-worthy USB DAC
iOS-worthy rear USB input
Coaxial, optical inputs
Minus
No headphone amp

THE VERDICT
About the size of a thick paperback, the Arcam irDAC is a USB DAC that will make your audio files—from lossless to lossy—sound great.

The USB DAC is the missing piece in many of today’s audio systems. Most AV receivers have iOS-friendly USB inputs, but few have the PC-friendly kind. If you want to connect a computer’s USB output to your system, you probably need something like the Arcam irDAC to mediate between computer and system.

When Atari's Greatest Hits made its way into the App Store this past April, retro-oriented gaming geeks worldwide - especially those who'd never been quite geeky enough to seek out ROMs to run on the open-source MAME (Multiple Arcade Machine Emulator) - rejoiced.

RED
Performance
Features
Ergonomics
Value

BLACK
Performance
Features
Ergonomics
Value

AT A GLANCE (RED)
Plus
Step-up USB amp/DAC
For computers and smartphones
Digital volume control on chip
Minus
No bit rates above 96 kHz
No DSD

AT A GLANCE (BLACK)
Plus
Affordable USB amp/DAC
For computers and smartphones
Analog volume control
Minus
No bit rates above 96 kHz
No DSD

THE VERDICT
Among AudioQuest’s latest round of compact USB amplifier/DACs for headphones, the Red has more fine-grained premium sound, while the Black is a superb under-$100 hi-res entry point.

Having made tons of money as one of the pioneers of the premium cable industry, AudioQuest has little left to prove. So it came as a surprise four years ago when the company turned its attention to signal sources and developed the compact DragonFly USB headphone amplifier/DAC with respected audio designer Gordon Rankin. But the move made sense for AudioQuest, whose very existence rides on the proposition that sweating the details can make an audible difference.

S+V dropped by the Beats by Dr. Dre/Monster Cable holiday product preview last night, to check out what the company had to offer to follow up on the Beats Pro headphones we looked at in this month's headphone shootout.

AT A GLANCE
Plus
Inexpensive
Compact
192-kHz capable
Minus
Potential dynamic limits
Runs warm

THE VERDICT
Though not ideal for more demanding headphones with challenging music, this is a highly affordable way to improve computer audio.

Bits are helpless prisoners trapped on the hard drive of your computer. If you plug your headphones (or desktop audio system) into the computer’s analog output, you can faintly hear their cries for help, but not the true timbre of their colorful voices. It takes a USB DAC (digital-to-analog convertor) to truly liberate them. And the good news is that USB DACs—especially those suitable for headphones—have gotten so small and unintrusive that you hardly notice their presence. A product like Cambridge Audio’s DacMagic XS is no bigger than a USB thumb drive. But the difference it can make to your computer audio listening life is very big indeed.

British manufacturer Monitor Audio has a deserved reputation for well-designed, high-performing speaker systems, and the latest offerings in the company's line of iOS device docks, the i-deck 100 and 200, follow in those footsteps. And now they can be yours.