esl

Electrostatic speakers: A very different way to make sound

Just about every speaker you've ever heard uses cone woofers and dome tweeters that feature a coil of wire in a magnetic field that pushes the diaphragm back and forth to make sound. Lots of great audiophile-grade speakers use conventional drivers of this type.

Flat electrostatic panel speakers work on a completely different design principle. These speakers use a superthin, but large, surface area diaphragm, coated with a conductive material sandwiched between two electrically conductive grids.

Electrostatic speakers produce levels of distortion one to two orders of magnitude lower than conventional cone drivers in a box. Electrostatic speakers' clarity is extraordinary. The big downside is high cost, but electrostatic speakers have been popular with audiophiles for many years.

MartinLogan is America's best-known manufacturer of electrostatic speakers. I've heard previous generations of the company's speakers many times, and was consistently impressed by their sound. Its all-new ElectroMotion series of speakers will feature electrostatic and MartinLogan's proprietary Folded Motion drivers. … Read more

'Confessions' of a hi-fi salesman

Hi-fi salesmen are some of my favorite people. The job is nonstop audio, and they turn their customers onto the best stuff. I know from where I speak; I sold high-end audio for 16 years in New York City. I played more combinations of speakers, amplifiers, turntables, and CD players than any audio reviewer ever has. I knew the gear inside out.

The best sales people are successful because they're all good listeners, and listening is important because you have to first understand what the customer is looking for before you can provide solutions. The best salesmen have lots of satisfied customers, and those customers turn their friends and relatives on to the salesman. The bulk of my sales worked that way.

I dropped by a Long Island, NY, hi-fi shop, Audio Breakthroughs, for the first time last Wednesday. I was immediately stopped in my tracks by the hi-fi store "smell." Nothing bad, just that old familiar slightly sweet scent of new electronics, mixed with a delicate blend of plastic vapors, furniture polish, and packing materials wafting through the air. It's an intoxicating aroma; I love the smell of new hi-fis in the morning!

I know some folks don't trust salesmen, but when I was on the floor I sometimes found it difficult to gauge the intent of a new customer. I'd greet them, exchange a few pleasantries, and try to be of help. Please understand, my store sold speakers priced from $200 a pair to over $100,000. I'd need some sort of ballpark number to get things going, but that wasn't always easy.

The worst part of the job was dealing with people who felt they had a right to hear any combination of gear, at their whim, at any time. Sorry, it doesn't work that way. Now sure, if they just wanted to hear some good stuff that was already set up, and the store wasn't busy I'd play a tune or two. For some that wasn't enough, and they'd become indignant when I tried, graciously, to change the subject. Sometimes they would claim they would have bought something from me, if I had only treated them better. I can't say I was right every time, but over the years I heard from other salesmen in other stores that they never really bought anything. I got out of the business 15 years ago, long before the Internet started chipping away at brick-and-mortar sales.

My favorite customers were the ones who came in with a clear agenda, and could tell me what they wanted, how much they wanted to spend, etc. The demonstration of gear might stretch out over days or weeks, which was fine with me, as long as I felt the customer wasn't wasting my time. Buying a serious hi-fi or home theater system involves a lot of decisions, and having a knowledgeable salesman can be a big help. If you think you're smarter than the sales guy, that's cool, just tell him what you want. … Read more

BOL 1064: Urine in the sky with diamonds

That beautiful silvery comet you saw in the sky recently was actually astronaut urine. No joke. We also avoid talking about pee for most of the show. Bing is still on the rise and Facebook is making money. Wow. Things are looking up all over. Just be careful when you look up. There's astronaut pee up there.

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Facebook grows and makes money http://news.bbc.co.uk/2/hi/technology/8258117.stm

Bing grabs 10 percent of search market http://news.cnet.com/8301-10805_3-10354394-75.htmlRead more

Are ESL bulbs better than CFL or LED?

A novel design for energy-efficient lightbulbs can produce incandescent-quality light and does not contain mercury like compact fluorescents (CFLs), according to manufacturer Vu1.

The Seattle-based firm has been working on an alternative to CFLs and LED lights for five years and just rolled out a demo video, below.

Vu1's Electron Stimulated Luminescence (ESL) lights can last up to 6,000 hours, about three to four times the lifespan of incandescents and comparable to CFLs. They produce 50 percent less heat than incandescents.

The ESL bulbs contain an electron source that fires electrons at a proprietary luminescent phosphor, which then … Read more

Teach English in your spare time with TalkBean

At a conference today about South Korean tech companies, I got a demo of TalkBean, a marketplace that connects people who want to learn English with those who can teach it.

I'll get the snarky bit out of the way up front: The site needs to take its own lessons. Marketing slogans like, "TalkBean will do our best to provide you with diverse culture and profitable experiences," and error messages such as "You need to put number for this section," seem out of place on a site that's trying to help its customers play … Read more