Tag Archives: woofer

Asheville, Walnut Cove, Biltmore Forrest and Western North Carolina’s Audio and Home Theater specialists present Cane Creek AV and Paul McGowan – PS Audio, Intl.

Not that long ago

While looking at a replacement woofer for a friend of mine, I noticed its huge magnet and metal encasing shield. Ah yes, I thought, the magnetic shield that was all the rage a few years ago.

That shield was needed to protect cathode ray tubes from TV’s which use magnetic steering to position their controlling electron beams. Those electron beams had to be pointed at precise locations to light up different colored phosphors.

Ray tubes! What Buck Rogers technology was this?

Of course, I am referring to the old style television tube known as the CRT: small glowing tubes that grew in color range and size over their 75-year reign. The largest commercially available model was about 45 inches and weighed several hundred pounds. Larger TVs were technically possible but not marketable as the depth, weight, and cost made them difficult to sell. A 50-inch TV would require a 38-inch picture tube and even larger casing, making it near impossible for the TV to fit inside a standard door (let alone be hefted by mere mortals).

CRT televisions were finally phased out as late as the 2000s and replaced by plasmas, LCDs, OLEDs, LEDs, etc. The newer technologies are insensitive to magnetic fields, and thus, the need for magnetically shielded speaker drivers has vanished in little more than the blink of a technological eye.

Still, does any technology sound more high tech and futuristic as a fricking Ray Tube?

Buck would probably shed a tear for the passing of ray tubes into the boring of Light Emitting Diodes, so too would his contemporaries: Flash Gordon, Jack Swift, Brick Bradford, Don Dixon, Speed Spaulding, and John Carter.


Asheville, Walnut Cove, Biltmore Forrest and Western North Carolina’s Audio and Home Theater specialists present Cane Creek AV and Paul McGowan – PS Audio, Intl.

Inside looking out

There’s a very important picture within each of us, one we believe represents our persona.

It’s almost always wrong.

It’s wrong because of the constant conflict within our heads: I am good at this—well, maybe not so much. I am really bad at that—well, I’ve been better in the past. I’ve heard much better sound out of cheap speakers!—well, maybe not. This doesn’t make sense!—well, enough people say it does so I am probably missing something. I am sure this sounds right!—well, the others don’t agree.

On an on, round and round it goes. Self-confidence battling self-doubt. New information erases or modifies what once was fact: corner horns are the ultimate, detachable power cords violate the wishes of the designer, one big woofer is better than multiple smaller ones.

Often the noise in our heads can overwhelm us to the point of searching out third-party opinions to hide behind. It’s sure easier to make a decision based on an expert’s opinion than to bravely step out on the ledge and take credit or blame for your own thoughts.

But then we always have to come back to reality when all the noise in our heads goes to sleep. In the quiet hours, we can relax and examine the fruits of our decisions: does the system really achieve what we had hoped for? Is there a nagging sense that it might make someone happy, just not us?

It’s hard to find what really works for us, to be brave enough to say “it’s right for me”.

When we take a stand we risk the judgment of others.

But, when we’re confident enough to make ourselves happy that’s the point of greatest joy.