WHAT DO AMPLIFIER CLASSES ACTUALLY MEAN? If you’re shopping around for an amplifier, powered speaker, or subwoofer, you may come across terms such as Class A, Class AB, and Class D. At first, these names probably sound like quality ratings,...
HEADS UP! WHAT IS A HEADSHELL? Previously on SpenCertified, we looked at a couple of pieces that make up the Turntable Puzzle. Namely, the two choices for phono cartridges: Moving Magnet and Moving Coil. This time, we’re digging out our...
BEGINNER’S GUIDE TO MOVING MAGNET VS MOVING COIL CARTRIDGES The stylus, cartridge, headshell, tonearm, and phono preamplifier are all pieces of a single puzzle. The cartridge is one of the smaller pieces (though not the smallest - we’ll get to...
COMBINING A 6-DISC CD CHANGER AND CASSETTE PLAYER INTO A SINGLE DECK The BSR MCD 8050 is a perfect example of peak late-1980s audio technology. It's the result of someone looking at a cassette deck and deciding it needed a...
CHOOSE YOUR FIGHTER: COMPARING TWEETER DESIGNS In my last article, I explored the whats, whys, and hows of ferrofluid tweeters. This time, we’re broadening the scope and taking a closer look at the small but mighty driver responsible for bringing...
FERROFLUID AND THE BENEFITS OF USING IT IN SPEAKER DRIVERS What combines acoustics, materials science, and thermal engineering? This guy! Ferrofluid is a fascinating liquid. If you’re reading this, you’re probably familiar with its application in one particular realm: stereo...
A SIMPLE GUIDE TO UNDERSTANDING SPEAKER CHANNELS AND HEIGHT CHANNELS In a home theater system, a speaker "channel" refers to an independent audio signal sent to a specific speaker. Speaker channels help create a realistic soundstage by placing sounds in...
DOES S-VIDEO IMPROVE VHS QUALITY? This Sunday, June 7th, is National VCR Day! To celebrate, we wanted to tackle a couple of the most common questions we receive about VCRs: What is S-VHS? Does S-Video make a difference in the...
A BEGINNER’S GUIDE TO HDMI TYPES, BENEFITS, AND SUPPORTED DEVICES Think about the last time you connected a gaming console to a TV, plugged a laptop into a monitor, or set up a streaming device. Chances are, you used an...
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