Version: 2008
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Grado RA1-HG

  • Quick specs
  • Product type: Headphone amplifier
  • Sound output mode: Stereo
  • Remote control type: None
  • See full specifications

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The good: Audiophile-grade headphone amplifier; elegant solid mahogany case.

The bad: You'll hear a loud pop through the headphones when you turn the RA1 on or off; only the RA1-HG model plays loud with non-Grado 'phones.

The bottom line: This remarkable little amplifier brings out the best sound from your headphones.

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CNET editors' review

  • Reviewed on: 03/11/2005
We're going to let you in on a secret: the headphone amplifiers built into most A/V receivers deliver only so-so sound quality. Brooklyn's premier headphone manufacturer, Grado, has a solution: a dedicated high-performance headphone amplifier, the RA1. The amplifier's electronics are discreetly housed in a solid, real mahogany cabinet fitted with an aluminum volume-control knob. The device is blessedly simple to use: connect it to an audio source, turn it on, plug in a pair of headphones, and adjust the volume level. That's it. The battery-powered DC version retails for $350; we reviewed the AC-powered version, which goes for $425.

With measurements of 5 inches wide, 5.5 inches deep, and 1.5 inches high, the RA1 is tiny enough to fit anywhere. It weighs just 12 ounces. Connectivity is restricted to a pair of RCA analog line-level inputs and one 1/4-inch headphone jack. Buy a Y cable, and your RA1 will drive two sets of headphones; likewise, an 1/8-inch adapter (also not included) can be used to connect standard minijack-equipped headphones.

To assess the sound, we compared the RA1 to the headphone jack in our old $1,500 Pioneer VSX-27TX receiver using our Grado SR125 headphones. The Pioneer actually sounds pretty good on its own, but on the Ladykillers CD soundtrack, the RA1 clearly delivered deeper, better-defined bass, and the gospel singers sounded more natural. Switching back and forth, the Pioneer consistently sounded harsher, brighter, and more aggressive.

On DVDs such as The Matrix Reloaded, the differences between the Pioneer and the Grado were less obvious, but for audiophiles who crave the best sound, the RA1's greater clarity will add a new dimension to the listening experience. To put it another way, the RA1 made the Grado SR125 headphones sound like more-expensive headphones.

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Where to buy

Grado RA1-HG: $425.00
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B&H Photo-Video
$425.00 Backorder 5.0 star rating

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Price: $425.00
B&H Photo-Video $425.00
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Grado RA1-HG