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RA1

Name: Grado Labs RA1
Brand: Grado Labs

Grado Labs

Reference Series1996 – Present

AmplifiersHeadphone AmplifiersDiscontinued

Estimated price (community-sourced)

$425

About the RA1

The Grado RA1 Reference Headphone Amplifier enhances the performance of Grado headphones with its warm, smooth, full-bodied, and non-fatiguing sound signature. Machined from a solid block of mahogany, it features a compact design and is optimized for line-level sources. The AC-powered version uses 100-230 VAC input with an outboard power supply, while the battery-powered variant runs on two 9-volt batteries for 40-50 hours. Both deliver state-of-the-art amplification particularly synergistic with Grado cans, though effective with others. A high-gain RA1-HG variant exists for headphones over 100 ohms. Now discontinued by Grado Labs.

Specifications

Key Specifications

Power: 0.3W

Full structured specifications are available to members.

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