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Scott Wilkinson May 04, 2012 35 comments
In this week's Home Theater Geeks podcast, Home Theater and Stereophile contributor Steve Guttenberg argues that blind comparisons of audio products are meaningless for several reasons. First of all, he claims, most people cannot reliably discern the difference between similarly performing products, and perhaps not even between products that perform quite differently. As you can see in the graph above, listening tests conducted by Floyd Toole and Sean Olive reveal that blind comparisons of four speakers resulted in much more equal preference ratings than the same comparisons in which the listeners knew what they were listening to.

Also, Guttenberg maintains that the tester's ears are psychophysiologically biased by the sound of one product while listening to the next product. Finally, the conditions under which the test is conducted are rarely the same as those in any given consumer's room, so the results mean nothing in terms of deciding what to buy.

Do you agree? Are blind comparisons of audio products valuable? On what do you base your position?

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Are Blind Audio Comparisons Valuable?
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Scott Wilkinson Oct 21, 2011 4 comments
Despite their high efficiency and low power consumption and heat generation, class-D amplifiers have long been relegated to second-class status by much of the audio community, appearing mostly in low-cost, low-performance audio products. (One notable exception is powered subwoofers, which require amplification only in a limited frequency range.) Lately, however, full-range class-D amps have gained more respect—for example, Pioneer has been using this technology in several generations of its Elite AVRs, including the 2011 SC-55 and flagship SC-57 reviewed exclusively on HomeTheater.com.

Reviewer and long-time class-D detractor Michael Fremer was finally won over by the new Class D3 amp used in the SC-57 (shown above), but many audiophiles still scoff at this technology, preferring the sound of purely analog class-AB designs. What's your take? Have class-D amps finally achieved a performance level commensurate with class-AB?

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Are Class-D Amps Ready For Prime Time?
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Scott Wilkinson Jun 01, 2012 19 comments
I've never considered myself an audiophile. Don't get me wrong—I deeply appreciate high-quality audio reproduction, and I know it when I hear it. But I've never seriously pursued the 2-channel hobby as exemplified in our sibling publication Stereophile. I believe this is because I've been a professional musician far longer than just about anything else in my life, and I spend so much time listening to live music that no reproduction system can compete in my ears.

On the other hand, I do consider myself a videophile—I spend hours calibrating my displays to meet the standards established by the industry, and I can't help noticing the smallest faults in a visual image. Of course, I also want my surround system to sound as good as possible—audio is at least half the home-theater experience, after all—so I carefully select and set up the audio components as well. But home theater is a fundamentally different experience than 2-channel music with no accompanying video.

What about you? Are you more of a 2-channel audiophile or home-theater videophile? Or do you pursue both hobbies about equally?

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Are You More of an Audiophile or Videophile?
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Scott Wilkinson Jun 24, 2011 12 comments
As digital-audio resolutions increase from 44.1kHz/16 bits to 96kHz/24 bits to perhaps even 384kHz/32 bits, I wonder if there's a point at which digital becomes indistinguishable from analog. After all, the human hearing system is not infinite in its discrimination, so there must be a digital resolution beyond which we can't hear the effect of increasing it further. If that's the case, is digital audio at that resolution indistinguishable from top-notch analog, or is there some quality that will always allow us to identify it as digital?

Those who prefer the sound of analog will probably vote that digital will always be distinguishable from high-quality analog, no matter how high the resolution is, and I'd really like to know why you believe that. What is it about digital audio that will always allow humans—at least those with trained ears—to identify it as digital?

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Can Digital Audio Ever Be Indistinguishable From Analog?
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Scott Wilkinson Jan 14, 2011 12 comments

Remember the old commercial—"Is it live, or is it Memorex?" The question of whether or not recorded music can be indistinguishable from a live performance has been bandied about since the first days of Thomas Edison's "talking machine," when many listeners claimed the recorded sound was identical to the original.

Of course, our modern ears are more refined than that, but so are modern recording and playback systems, so the question remains, and much has been written about it. Stereophile editor John Atkinson documented an interesting experiment in which he recorded a live piano recital and immediately played the recording for the same audience, and Michael Lavorgna addressed the issue in Stereophile here. Steve Guttenberg provides more food for thought in an article for Stereophile and his Audiophiliac blog on cnet.com.

So I ask you: Do you think it's at least theoretically possible for recorded music to be indistinguishable from a live performance, perhaps with a massively multichannel recording and playback system? Or is the question moot, since they are two different things altogether?

Vote to see the results and leave a comment about your choice; I look forward to reading your thoughts on this one.

Can Recorded Music Ever Be Indistinguishable From Live?
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Scott Wilkinson Oct 14, 2011 33 comments
Yesterday, I helped Tom Norton unpack and set up a 60-inch Sharp Elite PRO-60X5FD LED-backlit LCD TV (shown on the right above) that he will review over the next couple of weeks. (Interestingly, the name Sharp appeared nowhere on the box, only Elite.) Even before setting the basic picture controls—but after selecting the Elite Pure picture mode and Low color temperature—the image looked remarkable, with deep blacks, bright whites, and rich colors. Also, the Sharp is sitting next to Tom's 60-inch Pioneer Elite PRO-141FD plasma (on the left above), so he will be able to do direct side-by-side comparisons to see if Sharp has managed to wrest the flat-panel crown from the Kuro.

In addition to exceptional picture quality, both TVs have something else in common—a very hefty price tag. The PRO-60X5FD lists for $6000, while the 70-inch version is a whopping $8500. (The 60-inch PRO-141FD was $7000 in 2009.) In my opinion, such high prices lead to the demise of the Kuro, because a best-possible-performance, cost-no-object flat panel is unsustainable in today's—or even yesteryear's—economic climate. So I'm concerned that the new Sharp Elite TVs will suffer the same fate as the Kuro.

Do you think ultra-performance, ultra-expensive flat panels can succeed in today's marketplace? Or are they simply too expensive to manufacture and sell in quantities large enough to make business sense?

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Can Ultra-Premium Flat Panels Succeed?
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Scott Wilkinson Oct 07, 2011 7 comments
Last week in his Audiophiliac blog, Steve Guttenberg mused about how audio measurements relate to sound quality. He concluded that objective measurements do not correlate with subjective evaluations, primarily because well-defined test tones have little to do with real musical signals.

Here at HomeTheater.com, we've certainly observed that poor measurements do not necessarily mean poor subjective performance, and that good measurements do not necessarily reflect good performance. On the other hand, in our experience, measurements sometimes support—and even explain—a reviewer's subjective observations, which are always conducted before the measurements.

Do you think that objective audio measurements using test tones correlate with subjective sound quality playing music? If so, is it a strong or weak correlation? In the comments, I'd love to know how much weight you give the measurements found in our reviews compared with the reviewer's subjective assessment.

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Do Audio Measurements Correlate With Sound Quality?
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Scott Wilkinson Mar 30, 2012 15 comments
Yesterday, it was reported that Best Buy plans to close 50 stores and eliminate about 400 jobs over the next year due to mounting losses in the face of competition from online retailers. Of course, online buying is the ultimate in convenience, but then you have nowhere local to go for service. Also, a store provides at least the possibility of seeing and hearing a demo before you buy, though TV demos in big-box stores are typically useless because the TVs are not set up properly and the environment is nothing like any room in a home.

This news leads me to wonder about where you buy your home-theater gear—online or at brick-and-mortar stores? Why do you shop online or in-store?

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Do You Buy HT Gear Online or In-Store?
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Scott Wilkinson May 27, 2011 11 comments
Last week, I asked if you enjoy 3D in commercial theaters. Thanks to all who voted and especially to those who left a comment—that really makes my day!

Now, I'd like to know how you feel about 3D in the home. Perhaps you own a 3D TV or projector, or you've seen one at a friend's place. And even if you own a 3D display, you might or might not enjoy that particular feature—after all, 3D TVs often provide the best 2D performance, so you might have gotten one for that reason, even if you hate 3D. So I ask you: Do you enjoy 3D in a home setting?

As always, I really hope you'll leave a comment about your choice, especially if you enjoy 3D only with certain types of shows. In your opinion, what programming works well in 3D, and what does not? In any event, I strongly encourage you to leave a comment no matter which choice you make—your fellow readers and I want to know what you think!

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Do You Enjoy 3D in a Home Setting?
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Scott Wilkinson May 20, 2011 21 comments
I've asked several poll questions about 3D, which have stirred strong feelings, both pro and con. But I haven't yet asked if you actually enjoy it. So now I'm asking—do you enjoy 3D in commercial theaters? (Next week, I'll ask the same question about 3D in the home.)

As always, I really hope you'll leave a comment about your choice, especially if you enjoy 3D only with certain genres. In your opinion, which genres work well in 3D, and which do not? But I strongly encourage you to leave a comment no matter which choice you make—inquiring minds want to know what you think!

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Do You Enjoy 3D in Commercial Theaters?
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Scott Wilkinson Mar 10, 2012 31 comments
In the latest Ask Home Theater blog post, Darren Benjamin says he has carte blanche from his wife to do whatever he wants in designing the media room. We should all be so lucky!

How about you? Do you have carte blanche to do whatever you want in your home theater, subject only to budgetary considerations? If you have no spouse, the answer is obvious. But if you do—be it a legal marriage or domestic partnership—have they placed limits on what you can do in that room?

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Do You Have Carte Blanche in Your Home Theater?
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Scott Wilkinson Jun 03, 2011 8 comments
I've heard and read several reports indicating that the adoption rate of 3DTV in the home is faster than it was for HDTV and Blu-ray in their first year and a half. Now that we have some idea of how many readers enjoy 3D in commercial theaters and in a home setting from the last two poll questions (here and here, respectively), I'd like to know if you actually have a 3D display in your home, even if you don't use its 3D capabilities. If not, do you plan to buy one sometime this year? Even if you hate 3D, you might be considering a 3D display for its generally superior 2D performance.

I'm delighted that so many of you have posted comments with the last two poll questions—thanks to all who did!—though I wonder why only about half as many voted and commented in the poll about 3D at home as in the one about 3D in commercial theaters. If you have any thoughts on this, I'd love to read them. In any event, I really hope you leave a comment elaborating on your vote in this week's question. For instance, which 3D display do you have or plan to get?

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Do You Own a 3D Display?
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Scott Wilkinson Feb 18, 2011 7 comments
A multichannel surround system is essential for the full enjoyment of most movies, but it can also provide an enhanced musical experience. I've always been bummed that DVD-Audio and SACD weren't more successful, because I love listening to multichannel music recordings—in fact, I tend to sit and listen to them much more than 2-channel CDs. Yes, early attempts were laughable in their gimmickry—who wants a cowbell clanking at them entirely from one surround speaker?—but as mixing engineers have gained more experience, the soundfield has become more integrated and cohesive. One of the best labels in this regard is AIX Records, whose multichannel releases are models that other engineers would do well to emulate.

In addition, multichannel recordings offer more options than 2-channel—in particular, a choice of perspectives. Mixing engineers can put you in the audience with ambience (room reverb, audience noises during live shows, etc.) in the surround channels, or they can put you in the middle of the ensemble, what AIX calls the "stage perspective." On the other hand, the sweet spot for multichannel is much smaller than for 2-channel—a point in the middle of the speaker array instead of a line perpendicular to the plane of two speakers.

Which leads me to ask: When you sit down to listen to music, do you prefer 2-channel or multichannel recordings? If multichannel, do you prefer the audience or stage perspective?

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Do You Prefer 2-Channel or Multichannel Music Recordings?
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Scott Wilkinson Nov 18, 2011 8 comments
Yesterday, I posted a blog mourning the premature death of so-called "active retarder" 3D technology. That leaves two types of 3D flat panels to duke it out—those that quickly alternate the left and right images on the screen synchronized with active-shutter glasses and those that use a film patterned retarder (FPR) to alternately polarize the odd and even lines on the screen, which are isolated for each eye using passive-polarized glasses.

There are many pros and cons to consider with each technology. Active-shutter glasses unequivocally provide full 1080p resolution to each eye, but they also block more light from reaching the eyes than passive glasses, so the image is typically dimmer. In addition, many people complain about seeing a flickering effect with active glasses that is nonexistent with passive glasses, and active systems are more prone to crosstalk/ghosting. And don't forget that active glasses are much more expensive than passive glasses, not to mention that active glasses are heavier, bulkier, and require replaceable or rechargeable batteries. On the other hand, while FPR displays often have a wider horizontal viewing angle, they have a much narrower vertical viewing angle. And they might not deliver full 1080p to each eye, though this is hotly debated, as discussed in my recent blog.

So which 3D flat-panel technology do you prefer—active-shutter glasses as championed by Panasonic, Samsung, Sharp, and Sony, or FPR with passive glasses as espoused by LG, Toshiba, and Vizio? If you haven't actually experienced them, which one seems more appealing to you?

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Do You Prefer Active or Passive 3D Flat Panels?
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Scott Wilkinson Nov 26, 2010 5 comments

At the heart of all home theaters is a central signal switcher/processor to which all the source devices are connected and one or more power amps to drive the speakers. These functions can be performed by separate components or combined into one unit called an audio/video receiver (AVR) or, in some 2-channel audio systems, an integrated amp.

Most enthusiasts agree that a separate preamp/processor (or pre/pro) and one or more power amps provide the best possible sound. On the other hand, such a system is more expensive and more complex to set up than an AVR, and the performance of AVRs has steadily improved over the years. On the third hand, if any function of an AVR fails, you must replace the entire thing, whereas a failure in a system of separates means replacing only the defective device. And even if there's no failure, separate components can be upgraded in a piecemeal fashion rather than all at once as with an AVR or integrated amp.

All of this leads me to wonder: Which do you prefer, the convenience and economy of an AVR/integrated amp or the ultimate performance and flexibility but greater hassle and expense of a system based on separate components, and why?

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Do You Prefer an A/V Receiver or Separates?
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