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Grado RA1 (AC)

Grado RA1 (AC)
alaScore 76

17 reviews

Jul, 2015

alaTest has collected and analyzed 17 reviews of Grado RA1 (AC). The average rating for this product is 3.3/5, compared to an average rating of 4.1/5 for other Receivers & Amplifiers for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Receivers & Amplifiers the Grado RA1 (AC) is awarded an overall alaScore™ of 76/100 = Good quality.

Review analysis

(Based on 17 reviews)

User Reviews  

Showing 1 - 17 of 17 Show Reviews: in English

Consumer review by: ( review summary for Grado RA1 (AC)


alaTest has collected and analyzed 15 user reviews of Grado RA1 (AC) from The average user rating for this product is 3.3/5, compared to an average user rating of 3.9/5 for other Receivers & Amplifiers on

67% of the reviews on give this product a positive rating.

This summary is based on the products: Grado RA1 Battery Powered Headphone AmplifierGrado RA1 - Headphone amplifier

Jul, 2015

Consumer review by: (

Grado RA1 (AC)


I'm looking at this amplifier as well as at some Music Centers, and I'm not really sure yet how well they will get a long with my stereo system, or if I should just replace the whole thing, the Music Centers I'm looking at are the Sonos (

Grado RA1 (AC)

Grado RA1 (AC)

Jan, 2005

Consumer review by: jseibert (

Grado RA-1 - (Headphone Amplifiers)

Jun, 2006

Product Specifications

After years of relying on other equipment to drive Grado headphones, you can now listen and enjoy headphones through Grado Labs' Reference Headphone Amp, the RA1. Designed for state-of-the-art performance and specifically to play Grados, the RA1 will allow you to hear your headphones like never before. This amp is machined from a solid block of mahogany and measures 5" wide, 5 1/2" deep and 1 1/2" tall and weighs in at 12 oz. 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. Hook it up to any line source (portable or in-home) and drive your Grado headphones to their full potential.

Audio Input

Type: None

Audio Output

Product Type: None

Audio System

Functions (KA):Headphone amplifier
Sound Output Mode:Stereo
Subcategory (KA):Audio components
Type:Headphone amplifier

Cassette System

Type: None

CD System

Type: None


Headphone Jack: Yes

Dimensions & Weight



Type: None


Manufacturer:Grado Labs
Packaged Quantity:1
Product Line:Grado

MD System

Type: None

Remote Control

Type: None


Type: None