Headphone Reviews

Grado Reference Series One Headphones Specifications

Sidebar 2: Specifications

Description: Open-air, dynamic, supra-aural headphones. Frequency range: 12Hz–30kHz. Nominal impedance: 32 ohms. Sensitivity at 1 kHz: 96dB. Weight: 9 oz.
Price: $695. Approximate number of dealers: 510.
Manufacturer: Grado Laboratories, Inc., 4614 Seventh Avenue, Brooklyn, NY 11220. Tel: (718) 435-5340. Fax: (718) 633-6941. Web: www.gradolabs.com.