HEATKEYS

Tests your audio equipment, speakers, room acoustics and hearing. Audio signals and test tones playable online. High resolution sound test files available for free download.

Head-Fi.org: Head-Fi covers headphones, portable audio, earphones, earbuds, headphone amplifiers and audiophile equipment.

Music production, music software reviews, recording, record production, in-depth music audio hardware reviews, monthly Steinberg Cubase, Apple Logic, Propellerhead Reason, Ableton Live, Cakewalk Sonar, Digidesign Avid Pro Tools, music creation tutori...

YouTube is a place to discover, watch, upload and share videos.

Humourous books on classical and pop music.

AudioCircle

Comprehensive home theater product reviews, tech articles, buying guides, and consumer electronics news! Get the latest equipment reviews and tech info on HDMI 1.3 A/V receivers and processors, HD DVD, Blu-Ray and more.

Rives Audio specializes in small room acoustics, listening room design and home theater design. Acoustical Engineering for the Home Environment.

Home page. Digital Recordings provides high-tech audio solutions to meet the everyday needs of individuals and industry.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

Lowest prices from the experts in car audio and video. Daily deals, fast and free shipping, up to $30 in free custom install kits on select car stereo receivers. Shop now!

The authority in high-end audiophile music and audio equipment reviews and information. From tubes, valves, turntables, vinyl, CD music and audio Hi-Fi review magazine.