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DVI and HDMI Cable Quandry
Cable Quandary: Composite, S-Video, Component Video, DVI, and HDMI Connectors At Axiom we take a rational, scientific and no-nonsense approach to cables in general, speaker cables in particular. If it's good-quality copper and it's thick enough for a given length (we like 12-gauge for speaker cable runs longer than 15 feet), then the cable's resistance is low enough to prevent any audible or sonic degradation.
By Alan Lofft
National Research Council - AxiomAudio
The National Research Council (NRC) is the home of ground-breaking psycho-acoustical research that has become the standard by which leading loudspeaker manufacturers measure sound reproduction. Read on to see how Axiom, one of the founding companies of this research, uses these principles connecting the relationship between technical measurements and listeners' impressions in double-blind listening tests.
By Alan Lofft
How A Digital Amplifier Works
Most audiophiles and enthusiasts have grown up with at least a basic understanding of what an amplifier does. It takes a tiny alternating electrical signal that represents the moment-to-moment variations of musical frequencies and their amplitudes (volume levels), and increases their strength many times so they're powerful enough to drive the cones and domes of speakers back and forth to generate air pressure variations (waves), which replicate the original sound waves.
By Alan Lofft
Tight or Flabby Bass?
Regular readers of loudspeaker and subwoofer reviews both online and in hi-fi/video magazines are used to seeing references to the sound quality of deep bass reproduction. Adjectives such as “tight” and “flabby” or “loose” are tossed around by reviewers in quite casual fashion, as if it’s a given that subwoofers or large loudspeakers have inherent traits of “tightness” or “flabbiness” based on their design.
By Alan Lofft
Treated vs Untreated: A Comparison of Two Identical Listening Rooms
At the Home Entertainment Show 2007, held in May in New York City’s Grand Hyatt Hotel, and sponsored by Stereophile and Home Theater magazines, one of the more interesting demonstrations let show attendees and the press hear and compare the combined effects of special room treatment and digital parametric equalization in one hotel room while across the hall was a virtually identical room with no treatments applied.
By Alan Lofft
Rear Projection - A Home Theater Alternative
If you are contemplating creating a dedicated basement home theater in your currently unfinished basement, or planning a new home with a home theater, here's an alternative projection arrangement that will let you move a DLP or LCD front projector into a neighboring utility room along with the associated amplifiers, satellite or cable-TV box tuners and related gear.
By Alan Lofft
Down to Earth: An Explanation of Grounding, Hum, and Conflicting Standards
To get a better understanding of this subject, take a look at the AC plugs on some of your audio-video gear, new and old, and on some appliances in your home. You’ll notice that some may have a 3-prong plug, others a 2-prong plug with one prong larger (polarized) than the other, and still others with two prongs the same size.
By Alan Lofft
Spotting Video Flaws: Motion Artifacts
Read this at your own risk! If you already own one of the High-Definition or Enhanced-Definition video display technologies in question, you may learn to see video defects that previously never bothered you, which, once isolated, may annoy you over time.
By Alan Lofft
What exactly is "Impedance"?
In a word, it’s resistance—opposition to the flow of electrical current (representing the audio signals) through your copper cables to the speaker drivers. It’s a kind of electrical "friction" to the movement of electrons through the copper.
By Alan Lofft
Dolby Digital
Dolby Digital is the trademarked name for Dolby Laboratories' system of discrete, digital 6-channel surround sound used in professional movie theaters and consumer home theater surround sound systems.
By Alan Lofft
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