ONHOMETHEATER.COM"Ask Us" Archives

...to December 31, 2002

 

December 31, 2002

Subject: Active speakers

Hello Wes,

I recently purchased a Lexicon MC12B, and I've been seeking a good power amp and good surround speakers. Well, until yesterday, I've been under the impression that I'll need at least one power amp to complete a home theater. "How about something unusual?" said my friend when I talked to him about my situation. "Since you've already got balanced outputs on your preamp, you could try placing active speakers instead of passive ones." My friend later said this option is a lot cheaper than the one I'm considering. Now I'm more confused than ever. Should I go for the unusual instead of the conventional?

Thanks for your time

Alex

Your friend is right -- he is proposing a solution that's unusual, but it also makes a lot of sense. For a lot of reasons it is better to run long runs of interconnect than of speaker cable, so active loudspeakers make a lot of sense in terms of signal transfer. (Another option is to use monoblock amplifiers placed near the speakers.)

Of course, audiophiles have tended to resist the whole concept of active loudspeakers, so you don't have a lot of choices, but there are a few good'uns out there -- especially in the pro-audio world. And you'll need to make sure that you have power outlets near all of the speakers.

I do feel, however, that as much as I think active loudspeakers make sense (your friend, too), most people find the concept somewhat strange. If you're the kind of consumer who buys a system and keeps it until it doesn't work anymore, you won't really care -- but if you like to trade things around, you should give a thought to resale value. Active speakers aren't generally as sought after as "regular" models, so you could take a bigger hit when you want to trade up....Wes Phillips


December 28, 2002

Subject: Component video

Wes,

I've finally got a TV that has component-video input (Sony KV-32HV600). I have an old Toshiba DVD player with component-video output but have never used them (because until now I haven't had any TV that would accept it). First, is component video worth it if my DVD player is a rather low-end model? Second, if so, what cables would you recommend (there are a ton out there for all prices)?

Thank you,

Roger Fukai

First, let's talk about what component video is. A video camera stores data in RGB (red, green, blue) form, but real RGB is bandwidth-intensive, so RGB is converted to component video for home use. Like RGB, component video is composed of three signals. The first is called luminance (brightness or black & white information), which is the "Y" component. The other two parts of the signal reveal "color difference" or the relative amount of blue and red relative to luminance. The blue component is called "B-Y" (blue minus yellow) and the red component is "R-Y" (red minus yellow).

Sounds as though there's not enough information there, doesn't it? A certain amount of data is implied by the data that is present. Green, for instance, doesn't have to be transmitted as a separate signal, because it can be derived from the information combined in "Y, B-Y, R-Y." This reduces bandwidth by about one-third.

DVDs are encoded in component video, unlike NTSC broadcast or VHS, so even a " rather low-end model" can take advantage of it. So, go ahead and take advantage of it.

BTW, component connections are usually RCA jacks color-coded green, blue, and red, but they can be labeled several different ways Y, B-Y, R-Y or Y, Pb, Pr or Y, Cb, Cr -- they all mean the same thing.

I haven't compared composite-video cables, so I'm not a big help. However, you can buy inexpensive component sets from pro shops for very little money -- like this 50' set made from Belden cable for $39.95 at Markertek. If you feel the need to upgrade later, you'll have established a yardstick for comparison....Wes Phillips


December 24, 2002

Subject: Under-$500 receiver

Hello Wes,

I am looking for a budget home-theater Dolby Digital receiver, something under $500. Sound quality is the most important feature. What brands and models should I look at?

Thanks,

Cody

That's probably the part of the market where the big multinationals are most directly competitive -- if one company offers a feature that distinguishes its line from the rest, the others will also add it immediately. Check out the usual suspects: Denon, Panasonic, Yamaha, and Sony. All offer a lot of A/V receiver for the money at that level....Wes Phillips


December 19, 2002

Subject: Speaker system

Hello,

I've been shopping for a home-theater system for a few weeks. I'll be connecting this to a dish HD satellite system, a 55" Mitsubishi HDTV, and a progressive-scan DVD player. Just looking for an opinion on the Klipsch Reference series -- RF-3, RC-3, RS-3, and RSW-12 -- with an Onkyo or Denon receiver. Which receiver would be better for that system? The other option would be the Cambridge SoundWorks Newton Theater T300 --  T300, MC300, S300 -- and Marantz 7200 receiver. They're similarly priced, but I wanted to get your opinion on a better package for the money. I'm a musician and listen to lots of music (loud) and also want power for movies. The room is 15' x 10', carpeted with an attached kitchen with Pergo floors, which adds about 20' x 10' of open space. Any help would be greatly appreciated. I'm looking for the best sound for the money. Budget is a factor.

Sten

I haven't heard the Cambridge system, but I have heard the Marantz receiver and it's a good 'un, but so are the Onkyo and Denon. And, while it's been a few years since I last heard a Klipsch HT system, it had all the Klipsch qualities (clarity, projection, strong bass) at a fair price. It sounds to me like you're doing just fine without my help, if those are your choices....Wes Phillips


December 16, 2002

Subject: DVD connection

Hello,

I need a little basic help. I have recently bought the Panasonic SC-DK10 (at least, I think it is the 10, as the 20 has a subwoofer and I don't have that). The problem is that I am unable to watch DVDs due to the fact that I have a 30-year-old-TV that I can't plug the DVD straight into. I have attempted to go through the video recorder but that doesn't work either. I am aware that there is a code that can be programmed in so that I can watch DVDs through my video recorder, but I have no idea where to go to get my hands on it. I cannot afford to upgrade my TV for about one year! Any thoughts on where I could go for this information?

Many thanks,

Jacque R.

The reason your DVD player won't work through the VCR is that DVD is copy-protected and its output interferes with a VCR's circuitry -- even when using it as a pass-through. Some players probably do have hidden codes that defeat this, but I can't help you with that -- besides, that's what the Internet is for.

However, I can suggest a legal solution to your problem. In fact, it will help you with a problem you don't mention -- being able to connect both the VCR and the Panasonic to your TV at the same time.

You want a Radio Frequency (RF) modulator, which will convert the video (and/or audio) output of a DVD player (or camcorder or video game) into a signal you will then receive on channel 3 or 4. Recoton makes a good, $49 RF modulator (model DVD649), which accepts both the DVD's output and that of your antenna (or cable system)....Wes Phillips


December 9, 2002

Subject: Speaker placement

Hello Wes,

I am about to purchase a custom-built entertainment center (built in and I decide where everything goes). I am looking at the 40" Sony tube TV and a Sony DVD surround-sound system. After reading your speaker-placement article, I have some questions. I see by your diagram that the center-channel speaker goes over the top of the TV; however, I was going to place the front left and right speakers in the entertainment center above and just to the left and right of the TV. Is this a bad idea?

I want the best sound, but I have to meet my wife halfway and not have speakers all over the living-room floor. Is this really going to make a huge difference? I will be able to use rear speakers. Can you tell me how to place these rear speakers -- for example, right behind the couch, or up on the wall?

Thanks for your time.

Ralph

I don't quite understand your questions. First, the "center" channel has to be placed close to the TV because that's where all the dialogue and sounds related to the action on the screen emanate. Most people put the center-channel directly above or beneath the television to better glue the sound to the image.

And you could put the left and right speaker just above and to the sides of the TV, but that will severely limit the illusion of scale you get from them. The whole point of surround sound's three-front-speaker array is to allow you to move the left and right speakers away from the television, so you get big, expansive sound without pulling the dialogue away from the set -- otherwise, why not just listen to the speakers inside your TV set?

If not "having speakers all over the floor" is an issue, you should probably consider speakers such as Mirage's OMNISATs, which are small and can be placed on any handy flat surface or even wall-mounted. Don't cripple the very thing that makes surround sound work -- big, expansive sound is one of the most important things that distinguishes home theater from plain old TV.

The very best place to locate the surround (frequently called "rear" speakers) is about two feet above ear level and to the sides or slightly to the rear of your favorite viewing location. Again, consider wall mounting if the floors aren't practical -- I've always had mine wall-mounted and my wife is extremely tolerant of speakers all over the floor.

Hope this helps....Wes Phillips


December 6, 2002

Subjects: Pre-out and power conditioning

Wes,

I just found your site while doing some research on A/V equipment. I've always had a set-up question bothering me and don't know where I can turn. Now I have found your site and hope you can give me some advice.

I recently purchased a Denon AVC-A1SR surround amp. Also, I own a old Aragon 4004 power amp, a PS Audio 5.0 preamp and a pair of Kef 105.4. My question is should I "pre-out" the main channels and drive them through the Aragon/PS Audio or directly through the Denon?

Also, I am looking for a power conditioner and have a few in mind: Monster Power 5100, Audio Prism Foundation III, and PS Audio Power Director (last year's model where I can get at relative low price). What is your preference? Thanks a lot for your help.

Andrew Lau

I'm not sure what role the PS Audio preamp would play if you chose to "pre-out" the Denon, but you might possibly prefer the sound of the Aragon driving the front left and right speakers -- and all it will cost you to find out is the effort of trying it and a pair of interconnects, which you presumably already have if you own a preamp/amp combination. You may not find this discernibly different for surround-sound applications, but it might offer sonic benefits for stereo music playback. Or possibly not, but you already have it all, so why not check it out?

As to power conditioners, I thought well of Monster's HTPS-7100, but I haven't auditioned the 5100 or either the PS Audio or Audio Prism units. All have good reputations, but my experience with power conditioners is that people have very wide-ranging responses to their effects, based on taste, expectations, and system/power-grid interactions, so you really need to "suck on it and see." Good luck!...Wes Phillips


December 2, 2002

Subject: Component-video input

Dear Wes,

I recently bought a JVC 723GD progressive-scan DVD-Audio/Video player and a Pioneer VSX-D511 receiver to hook up to my Mitsubishi 55311.

I did not realize that the Pioneer receiver did not have component-video inputs. Can I still connect the JVC to the Mitsubishi and enjoy component-video output?

Thanks,

Robert Kaplan

Yes, it is surprising that a component as well thought out as the D511 doesn't have component-video inputs and outputs, isn't it? But, as you've already figured out, you can connect the DVD player directly to your television and use the TV's video-switching capabilities -- and it's even possible that this direct connection will be clearer than using both another set of interconnects and a receiver's video switcher (just so you can feel good about something). You'll probably forget you've hooked things up this way, at least at first, but you'll get used to it in time. Some programmable remotes let you program "sequences" -- if you have one of them, just set up a sequence where pressing DVD play automatically switches the TV to the proper input....Wes Phillips


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