Home theater

Dolby Pro Logic IIz adds vertical dimension to surround sound

Dolby has a new surround format: Pro Logic IIz.

Here we go again. Another new format with more speakers, but this time, the "surround" speakers are in the front of the room, three or four feet above the left-and right-main speakers. These height channels are designed to provide a greater sense of envelopment than previous generations of Dolby or DTS surround.

Pro Logic IIz incorporates all of the features and capabilities of Pro Logic IIx.

"Expanding on established Dolby Pro Logic II matrix-decoding innovations, Dolby Pro Logic IIz identifies and decodes spatial cues that occur naturally in all content--stereo and 5.1 broadcast, music CDs, DVDs, 5.1 and 7.1 Blu-ray Discs, and video games," the Dolby site further explains. "Dolby Pro Logic IIz processes low-level, uncorrelated information--such as ambiance and some amorphous effects like rain or wind--and directs it to the front height speakers."

You don't have to buy new, specially encoded discs to experience Pro Logic IIz, but do you really want to buy another pair of speakers, wall-mount them, and run a pair of speaker wires up your wall, to the sides of your TV?

Dolby doesn't require the height speakers to be identical to the main-left or -right speakers. Some Pro Logic IIz systems will use a total of nine speakers (five front, four rear), plus one or more subwoofers.

Onkyo's TX-SR607 ($599 MSRP) is the first receiver to feature Pro Logic IIz; the company will soon offer additional models equipped with the new Dolby processor, to be announced later this year.

Then again, Yamaha's higher-end receivers have had height, aka "Presence," channels for years. Those extra speakers supplement the sound from the front speakers with ambient effects produced by Yamaha's proprietary Cinema DSP, which provides various multichannel configurations up to 11 channels. Obviously, Dolby's Pro Logic IIz uses different technology, though the end result may be similar. … Read more

720p vs. 1080p HDTVs: 2009 update

A few years ago I wrote a column about HDTV resolution and whether you should just buy a "standard" 720p/1080i set or pay the extra bucks for a higher-resolution 1080p set. The column was very popular, but people wanted me to update it as the market for HDTVs changed. So I did. The new column was called 720p vs. 1080p: The final word. Alas, it was probably a poor title, because folks asked me to update that one as well.

Eventually, of course, manufacturers will completely phase out 720p TVs. But it may take a few years. While the number of new 720p models is dwindling, several manufacturers, including Sony, Samsung, LG, and Panasonic, are putting out entry-level lines in 2009 that feature 720p TVs and we're getting a lot of readers asking whether they should save some dough and buy them. With that in mind, here's the word on 720p vs. 1080p, updated for this year.

1. What's so great about 1080p?

1080p resolution--which equates to 1,920x1080 pixels--is the current Holy Grail of HDTV resolution. That's because most 1080p HDTVs are capable of displaying every pixel of the highest-resolution HD broadcasts. They offer more than twice the resolution of step-down models, which are typically 1,366x768, 1,280x720, or 1,024x768. These days, HDTVs with any of those three of lower resolutions are typically called "720p." Nobody wants to remember all those numbers, and "768p" doesn't really roll off the tongue.

2. How much extra does a 1080p TV cost?

When I wrote my original article a few years ago, you had to pay a premium of about $1,000 to get a 1080p model at the same screen size as a "720p" set. While the gap has certainly narrowed, there's still a notable difference. In the case of a 32-inch LCD, for instance, you're looking at around a $200-$250 price bump. For example, the Samsung LN32B360 goes for $549.99, while the step-up 1080p version, the LN32B530, goes for $799.99. Sony has a similar price delta when it comes to its 32-inch LCDs.

As you move up the LCD-size chain, your 720p options basically disappear. Samsung and Sony, the two biggest names in LCD, don't even produce 720p LCDs larger than 32 inches anymore. You can still find older big-screen 720p models, like the 40-inch Samsung LN40A450, but they're becoming a rare breed.

When it comes to plasma, Panasonic's entry-level 42-inch TC-P42X1 720p carries a price of around $899.99, while the step-up 1080p version, the TC-P42S1, come in at $1,199.99 (street prices will vary, of course). Move up to Panasonic's 50-inch models and you're looking at more like a $700 delta, with the 720p TC-P50X1 coming in around $1,000 and the TC-P50S1 selling for $1,700--though Panasonic's S1 series does feature more-efficient, higher-contrast NEO-PDP panels. (Note: We do expect prices to drop slightly on all these models as the year progresses).

3. Why is 1080p theoretically better than 1080i?

1080i, the former king of the HDTV hill, actually boasts an identical 1,920x1,080 resolution, but conveys the images in an interlaced format (the i in 1080i). In a tube-based television, otherwise known as a CRT, 1080i sources get "painted" on the screen sequentially: the odd-numbered lines of resolution appear on your screen first, followed by the even-numbered lines--all within 1/30 of a second. Progressive-scan formats such as 480p, 720p, and 1080p convey all of the lines of resolution sequentially in a single pass, which makes for a smoother, cleaner image, especially with sports and other motion-intensive content.

World's biggest sound bar speaker

We've tested a lot of sound bar speakers for CNET, but none as ambitious or expensive as GenevaSound's Home Theater system. It's a 2.1 channel virtual surround system with an all-digital 700-watt amplifier, seven speakers, and integrated 12-inch subwoofer.

There's also a CD player, radio, and an iPod/iPhone dock. Considering its $3,999 list price, you might expect this super-size home theater to include a Blu-ray player, or at least a DVD player, but you're on your own. Your TV can be placed on the cabinet or wall mounted.

Oh well, the GenevaSound … Read more

Brooklyn beauties: DeVore Fidelity speakers

Devore Fidelity, founded by president and chief designer John DeVore in 2000, builds state-of-the-art speakers in the Brooklyn borough of New York.

DeVore is one of the few speaker designers I've met who worked as a high-end audio salesman, so he can draw upon first-hand knowledge of what buyers really want. He's also listened to the very best stuff out there, and learned that components that measure well and sound impressive at first don't always sound great over the long run.

I've known John for a long time, and when he first decided to get into … Read more

How to use your AV receiver's speaker calibration

Most new AV receivers come with an "auto setup" or "automatic calibration" feature, but despite the word automatic, these features can stump AV novices. If you're setting up an AV receiver for the first time, this guide will put you on the right track.

First, let's describe what auto setup systems do.

They send test tones to all the speakers and subwoofer, and use a microphone to pick up the sound of the speakers in your room. Auto setup systems determine speaker sizes and volume levels, set the subwoofer-to-satellite crossover frequency, measure distances from each of the speakers to the listener, and confirm that all of the speaker cables are correctly hooked up. Some receivers also use equalization to balance the frequency response of all the speakers.

Auto setup systems go by different names, but they all do approximately the same thing. Denon and Onkyo feature Audyssey; Sony has Digital Cinema Auto Calibration, Pioneer Multi Channel Acoustic Calibration, and Yamaha uses a Parametric Room Acoustic Optimizer.

The exact positioning of the auto calibration microphone is crucial for achieving accurate results. Some auto setup systems work from just one mic position, which would be the primary spot where you sit when watching movies by yourself. Ideally the mic should be placed at the same height as your ears when you're sitting watching a movie.

If you have a camera tripod, use it to place the mic at ear height; perfectionists should move the couch entirely out of the way. Lacking a tripod place the mic on the back of the couch, atop the highest pillow.… Read more

Radiohead, Beck, White Stripes live on DVD

I was never much of a fan of music videos or MTV. I couldn't understand why anyone would want to watch a band act out a silly story or lip-sync to a make-believe "performance." Why not just shoot the band playing for real in a studio?

The geniuses at IFC have done just that with Nigel Godrich's "From the Basement" series, which is now coming to DVD. There's an amazing roster of talent to see and hear.

High points include the White Stripes. Jack's wailing vocal acrobatics and scorching guitar riffs bouncing … Read more

My own stimulus: Buying made-in-U.S. products

Our economy is in a shambles. We all know there's a lot of blame to go around, but the fact is that most of the products we buy are made offshore. It's going to take some time to see if the stimulus plan's billions of dollars are going to turn the economy around, but each of us can do our part by buying American right now.

Our troubled domestic auto industry is at least still building cars here, which is more than you can say about electronics, computer, video, and camera vendors. Even clothing and shoes are mostly made elsewhere. It's not just the loss of blue-collar manufacturing gigs; design and engineering jobs are increasingly outsourced.

When shopping, do you look at the label or box to see where the product you're about to buy is made? If you had a choice of an American-made product and an imported one, would the country of origin play a part in your buying decision? If the American product was 10 percent pricier, would you buy it, even if you judged quality of the two to be about the same?

I just bought a new couch (for a great price), and it was made in North Carolina. That's my personal stimulus plan.

Sure, quality matters, but if we go on exporting jobs, how will we maintain our standard of living? I could make the same case for buying online versus shopping in your city or town. Those local shops employ your family, friends, and neighbors; would you pay extra to keep the dollars in your community?… Read more

Don't plug high-end headphones into AV receivers

Sure, most AV receivers have "good enough" built-in headphone amplifiers, which are fine for occasional listening.

But if you regularly listen to a decent set of headphones over your home theater system or computer, I recommend moving up to a high-quality headphone amplifier, like Benchmark's DAC1 USB ($1,275).

AV receivers' headphone amps, even on $1,000+ models either sound anemic, with little or no bass, or they're muffled sounding things. Whenever I review high-end headphones, I always plug them into an iPod, AV receiver, and a dedicated headphone amplifier, just to see how they perform in different contexts. But headphones always do their best when plugged into a good headphone amp.

Benchmark is one of the few manufacturers of professional audio gear that has consistently wowed audiophiles. The company offers a range of headphone amplifiers, and I reviewed the Benchmark DAC1 USB when I tested the Denon AH-D5000, Grado GS-1000, and Ultrasone Edition 9 luxury headphones for Home Entertainment magazine. … Read more

Swap your old hi-fi for cash

Adam Wexler, who was always into hi-fi equipment, started hanging around high-end audio shops when he was just a kid. By the time he was in college, he was selling a local shop's traded-in components and speakers.

He wasn't just into it for the money; he wound up with a really cool hi-fi on the cheap.

After college, he worked for a couple of stores before landing a sales-and-design position gig with one of New York's top high-end dealers. Now with Stereo Buyers Wexler is ready to take it to the next level. He buys high-quality audio for cash in the tri-state area of New York, New Jersey, and Connecticut, though he will occasionally accept equipment shipped to him.

Please understand: Wexler isn't interested in your Sony receiver, Marantz CD changer, or the Pioneer cassette deck you bought at a yard sale for 10 bucks 20 years ago. No, he's looking good stuff, high-end audio of any vintage, in good working condition. Tube gear, sure, and high-end solid-state amplifiers, turntables, tuners, speakers, etc. E-mail him a list of your gear, and he'll get back to you. … Read more

At last, a great-sounding sound bar speaker

Truth be told, sound bar speakers don't sound very good.

That hasn't stopped them from selling like gangbusters. People happily buy the fantasy of single-speaker surround sound, mostly because they don't want to deal with all the wires and hassles of a bona fide 5.1-channel home theater.

I don't blame them. Even stereo, HT 2.0 systems are too intrusive for some buyers. Enter Canton's nifty CD 90 SB sound bar, it looks and sounds terrific.

I have to admit sound bars can look pretty slick mounted under a flat screen display, but there is the tricky matter of mounting the thing and running wires through walls. I suppose that's why most sound bars wind up sitting on a shelf under the display.

My real beef with sound bars is they don't sound all that good. The worst offenders are the ones that try to do some sort of fake surround sound. True, the better ones spread the sound well out to the sides of the room. Some project sound forward, towards the listener. But it's never as good as real 5.1.

Most sound bars' "surround" is only heard when you're sitting directly centered relative to the display and speaker; once you're over to the left or right the surround effect fades away. Worse yet, the sound quality of these things is iffy: it's either harsh or dull (most sound bars don't have tweeters). Mind you, sound bars aren't cheap: the better ones sell for between $1,000 and $1,800. For that much dough you could buy a really decent 5.1 speaker/subwoofer package with way better sound.

Granted, sound bar sound is passable when you're watching a movie, but try listening to music, and you'll realize just how lame the sound is. … Read more