Amps & DACs
Grado RA1-HG
Although nearly all of Grado Labs headphones rate at a highly efficient 32 Ohms impedance, many headphone afficionados own higher-impedance, harder to drive headphones or more power-hungry cans demanding a very robust power source. Using the Grado Labs HG ['High Gain'] headphone amp is the easiest way to bring that world-famous Grado sound to any high-end headphone of your choice. AC power only.
Sorry, no Grado Labs product shipping allowed outside USA due to manufacturer restrictions!
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Product Features:
- More powerful 'high-gain' edition of Grado Labs famous wooden headphone amplifier
- Can easily power any Grado headphone to loud, very clear listening levels
- Lovely audio synergy with Grado high-end PS and GS headphones
- Plugs into household AC power, no batteries
- Engineered & manufactured in Brooklyn USA
What's In The Box:
- (1) Grado RA1-HG headphone amplifier
The Grado Labs RA1-HG 'High-Gain' headphone amp was designed specifically to drive any Grado headphones -- along with other brands' higher impedance headphones -- with easy aplomb and grace. It's especially recommended for use with audiophile reference headphones rated above 100 Ohms impedance that typically demand extra robust drive power for best sound quality performance and maximum acoustic detail. The RA1-HG is AC powered. The AC-power Grado RA1-AC model and the standard battery-driven Grado Labs RA1 headphone amp edition are also available at HeadRoom.
The RA1-HG general build design is small and fairly light for 'portable' or -- better said -- transportable use, although that traditional Grado wood-block design makes it somewhat bulky for easy travel and mobile listening on the fly. It's a very simple yet effective amp; the front panel sports a volume control, an on/off LED light, and a full-size 1/4" headphone jack. The rear of the amp provides an on/off switch and one pair of left/right RCA inputs along with the AC power receptacle.
Note to International Customers: Grado Labs has asked us to respect their distributor and dealer territories and decline all orders from all international destinations including: Canada, UK, Mexico, France, Italy, England, Germany, Switzerland, Spain, Greece, South Africa, Netherlands, Norway, Finland, Sweden, Denmark, Russia, Poland, Hungary, Croatia, Austria, Yugoslavia, Czech Republic, Ukraine, Israel, Slovenia, Australia, New Zealand, Singapore, Taiwan, Japan, Hong Kong, Philippines, Oman, Peru, Argentina, Iceland, Lebanon, Thailand, Brazil, Malaysia, Falkland Islands, Malvides Islands, Cape Verde Islands, the Canary Islands, Ceylon, Tahiti, South Korea. Please address all complaints and dealer territory infractions to: info@gradolabs.com
Specifications:
- Weight: 12 oz (340 grams)
- Dimensions: 5" x 5.5" x 1.5"
- Frequency Response: 20-20k
