Grado Labs RA1 Reference Headphone Amp (AC Powered)

MSRP 425.00
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To truly optimize and bring a pair of high performing headphones to life, you need to connect them to a headphone amplifier to unleash their true potential. Once the headphones become powered, the difference is not only noticeable, it brings them to life and lets you enjoy all their high performance capability. While there are many headphone amps on the audio market, even at a similar price point, the Grado Labs RA-1 headphone amplifier sets the standard in sound quality and truly amazing high performance. Grado Labs have become a favorite brand in the audiophile community for their great products, and the Brooklyn USA based company continues to deliver with this critically acclaimed headphone amp that lets your headphones truly sound the way they were intended.

There’s no need to rely on any other equipment to drive your Grado headphones any longer. While designed for use with Grado Labs headphones, the RA1 can be used with other headphones as well. Now you can fully enjoy your audio experience with Grado’s Reference Headphone Amp, the RA1. Designed for superior performance and Grado headphones, the RA1 Headphone Amp provides state-of-the-art functionality, allowing you to hear your audio like you never imagined. A great sounding pair of headphones connected to the Grado Labs RA1 amplifier, will sound truly extraordinary. You can hook up the RA1 to any line source (portable or in-home) and finally drive your Grado headphones to their full potential. This new amp is machined from a solid block of rich mahogany and measures 5” wide, 5 1/2” deep and 1 1/2” tall and weighs in at 12 oz. It is small, compact, lightweight and easily portable. The RA1 is available in an AC version or can be powered by two 9-Volt batteries that will drive the amp for 40 to 50 hours of listening pleasure. And the sound? Just like all Grados: warm, smooth, full-bodied, non-fatiguing and rich.


  • Beautiful mahogany construction
  • Designed specifically to drive Grado headphones
  • Warm, smooth, full-bodied sound
  • Operates on AC power
  • Single 1/4” stereo output
  • Gold-plated stereo RCA phono line input
  • Front-panel volume knob

In the box

  • Grado Labs RA-1 Headphone Amplifier
  • 1-year limited warranty
Headphone Output: 1/4"
Weight 12 oz
Dimensions 5 x 5.5 x 1.5"
Line Source: Any
Battery Life: 40 to 50 hours
Battery Power: 2 -9 Volts
MSRP $425.00