Alan Lofft

  • Articles
    Dolby Pro Logic IIz (DPLIIz) Explained

    Do Height Speakers Matter? There seems to be some confusion about Dolby Labs’ latest refinement of its...

  • Articles
    Do 4-ohm vs. 8-ohm Speakers Matter?

    Impedance is complicated and frequently misunderstood. A speaker designer doesn't "choose" speaker impedance. The overall impedance is...

  • Articles
    7 Home Theater Improvement Tips

    If you’ve acquired a flat-panel HDTV plasma or LCD display, chances are the sound quality of the display’s puny internal speakers is abysmal, and you’ll want to upgrade it sooner rather than later. It only makes sense to match the stunning clarity of your HDTV’s visual presentation with similarly awe-inducing sound quality....

  • A/V Receivers
    AV Receiver Power Ratings Explained

    It’s no surprise then that one of the first specifications a novice or seasoned enthusiast looking to...

  • Articles
    Does Matching Speaker Brands or Impedance Matter?

    Question. If I’m setting up a 5.1-channel speaker-system, must all speakers come from the same brand, with...

  • Articles
    How Many Audio Channels are Enough?

    Amid the multi-channel world of Dolby Digital 7.1 and surround sound, we don’t often stop to question...

  • 3D TV
    3D HDTV Report from CES 2010

    Big banners proclaimed 3D as the new dimension in TV Still, if the video display manufacturers are...

  • Articles
    Big Screen HDTV Buying Advice

    1. Choose the Right Screen Size for your Room Your viewing distance and screen size will determine...

  • Articles
    Subwoofer Basics for Better Bass

    The driving rhythms of deep powerful bass in rock and pop music as well as the timpani,...

  • Articles
    Tips for Better Home Audio Sound

    As the days in the Northeast, Northwest and Midwest get chillier and darker with fewer daylight hours, we tend to move indoors and spend more time with our electronic entertainment. Getting cozy in front of the electronic hearth with music or movies over the winter months is a modern tradition. With that...

  • Articles
    Tweeter Dome Material Myths

    Modern Marvel All of us take for granted lots of modern marvels, but it nevertheless still impressed...

  • Articles
    Home Audio Shopping on a Budget

    In an uncertain economy, as companies run lean and lay off workers, most everyone except the super...

  • Articles
    7.1-Channel Surround Sound Considerations

    One requirement for 7.1-channel surround is sufficient space behind your couch and listening area — at least...

  • Articles
    Comb Filtering: Popular Misconceptions

    Figure 1 Then we moved the measuring microphone 1/2-inch to the side, off center from the sweet...

  • Amplifiers
    How Class D Digital Amplifiers Work

    As Axiom’s chief R&D engineer Tom Cumberland describes it, a digital amplifier is a “power DAC”, and...

  • Articles
    Grounding, Hum and Conflicting Standards Explained

    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,...

  • Articles
    Speaker Impedance and Ohms Explained

    Easy Answers to Confusing Specs You’ve seen references to “impedance” and “ohms” in various loudspeaker specifications or...