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Old 10-23-2005, 08:32 PM   #1
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Default Logitech Z-4 2.1 Speakers

Listening to music and watching movies on our PC's has become something we do on a daily basis, and how that sound is output is very important. The audio should be crisp, clear and undisturbed by distortions caused by speakers. The Logitech Z-4, an award winning product, promises crystal clear sound deliverance in a sleek retro design with advanced driver technology.



After reading the review here, don't hesitate to discuss it here!
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Old 10-24-2005, 12:28 PM   #2
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A picture of the sub's rear would have been nice.
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Old 10-24-2005, 04:18 PM   #3
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Looking at the sats I can tell that each has one active driver (located in the center) and 2 passive radiators also known as a butterworth 4th order tuned port which use the air inside the speaker enclosure to couple the radiators to the driver via fluid dynamics.

The middle driver is an inverted dome full range driver, basically a hopped up tweeter that has a suspension allowing for greater movement so that frequencies down to the crossover point are covered and the passive radiators help to reinforce the upper bass registers.

I'd also imagine that the crossover point for the sats is somewhere in the area of 200-180hz rolling off at 6db per octave and the sub is likely crossed over at around 120hz but that's just an educated guess.

Nice little setup.
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Old 10-25-2005, 01:44 AM   #4
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Quote:
Originally Posted by madmat
Looking at the sats I can tell that each has one active driver (located in the center) and 2 passive radiators also known as a butterworth 4th order tuned port which use the air inside the speaker enclosure to couple the radiators to the driver via fluid dynamics.

The middle driver is an inverted dome full range driver, basically a hopped up tweeter that has a suspension allowing for greater movement so that frequencies down to the crossover point are covered and the passive radiators help to reinforce the upper bass registers.

I'd also imagine that the crossover point for the sats is somewhere in the area of 200-180hz rolling off at 6db per octave and the sub is likely crossed over at around 120hz but that's just an educated guess.

Nice little setup.
Thank you SO much for pointing this out.

I too was a little disapointed when he refered to the PR's on this setup as "speaker covers", and beeing skeptical about the sound output through them. It is mearly a flat dust cap, rather then the typical inverted cone on most speakers and PR's. Truth is, there is nothing covering over the speakers, and nothing covering them to impede the sound. What you see are the actual drivers themselves.

I certaintly hope that the reviewer reads these comments and updatest he review to reflect them.

And hopfully learns somthing along the way.
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Old 10-25-2005, 10:38 AM   #5
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Unhappy :|

I have learned something... that people can be callous. Next time I guess I will take them apart and list how they are made and work, all the tedious little bits inside, in addition to how they look and sound. I thank Madmat for the additional internal tech information on them. Also, here is a photo of the subwoofer's back.

http://foreverdreams.techgage.com/images/1/IMGA0043.JPG

http://foreverdreams.techgage.com/images/1/IMGA0045.JPG

I'm sorry the review wasn't up to your standards... I will be far more aware next time. Thanks for making my day just peachy. Kudos to you.
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Old 10-25-2005, 12:16 PM   #6
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Thanks to Matt and the unregistered user for pointing out these things. This has been our first actual speaker set review, so neither Jen or myself had a good basis or knowledge to post an in-depth review.

After reading Jen's review, I had no problems with anything she said, so I also mis-understood some l33t sp34k in the sp34k3r world.

Our future speaker reviews will be more accurate as we figure these things out.
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Old 10-25-2005, 04:43 PM   #7
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I wasn't trying to be callous, I was trying to point out how they work so that you'd have an idea of what you were seeing.

I'm genuinely sorry if I hurt your feelings Jen, it wasn't what I had in mind at all but I must say your idea about tearing them apart is an attractive idea since it would allow you to take pictures of the insides for your reviews and most tech guys like the same thing every other guy likes, naked parts

I liked the review, just thought I'd point out a few basics on what you were seeing.
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Last edited by madmat; 10-25-2005 at 04:45 PM.
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Old 10-25-2005, 06:10 PM   #8
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Talking :d

Haha, no Mat, I'm not upset, most certainly not at you <3. I'm actually glad you knew the insides on them, and wasn't meaning to sound sarcastic in my thanking you for listing that. I was being quite honest. I'm more of a function, actual use reviewer, rather than naming the bits inside type. I suppose I will learn though. I just want to do a good job ^^

And yes... I know most guys love stripping things. XD Maybe showing naked parts will make my reviews even better!! :P haha...
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Old 10-25-2005, 06:28 PM   #9
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That's good to know, I felt really bad thinking I'd hurt your feelings...:-\ I'm just an uber audio geek, I've been into it since I was a little kid and two of my personal heros are Paul Klipsch and Matthew Polk. I've been designing and building speakers for home and car audio since I was a teen.
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Old 10-26-2005, 02:23 AM   #10
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First, to Rob...i am no longer an "Unregistered User" (the seconed post). I kinda like this little comunity here, so i recon ill join.

Now to Jen...

PLEASE!!!! Do NOT pull the knee jerk reaction of "everyone hates me cause im a girl reviewer" becuase its not true. Honestly, i didnt even know the review was written by a women when i made my first post (as evident when i refered to the reviewer as a 'he'). Ive just seen FAR to many girls in this industry do this very thing over the years, and that type of mentality is what killed their carriers in the hardware review industry. Becuase they could not take any form of constructive critisism. Which is what anyone in the review industry has to learn to take in stride. And i speak from personal experience. Plus, it has nothing to do with being calloused, its becuase we are geeks. And as geeks we want to know all the ins and outs of the hardware we are reading about, and expect the reviewers of that product to have at least as much, if not more knowledge about the product then we do.

Heres the raw basics of what was said, and why. (and i say all of this with yours, Robs, and TechGage's best interests in mind)

You incorrectly described a piece of hardware. Which was a direct result of failing to research audio equipment design, and terminology before writing your review.

This time, its not so big of a deal...so your thought the dust cap on the passive radiator was a speaker grill, a glaring oversite, but not a big one. And fortunately Logitech is a preaty forgiving company in those respects.

However, some companies arent. Infact, most of them arent. And it can hurt you when you misquote a companies product like that.

So it pays to do your research, and become versed on the more in-depth basics of the product your reviewing. Such as, what type of box is the sub contained in? Why type of configuration are the satalites run in? What type of amp? Why type of speaker design type? Etc. All of those hard ware descriptions are fairly easy to figure out with a couple hours spent on google researching. Or even contacting Logitech, or any other hardware manufacture directly.

I guess the biggest part of the whole issue is that Audio Officianados know more about there particular niche of hobby then most other hobbiest...except maybe those in computers. In which case your doubly screwed with this review. Because, as you know, we are all about the numbers, and the tech specs. And arent your typical "function, actual use" type of people.

So educate yourself on the basics of audio, invest in a radioshack dB meter, and have a great time doing your next review. Its not really necessary to take them apart and know the insides, just be knowledgable on what the speakers actually are, and how they function. Which is easily done with a quick visual inspection, once you know what you are looking for.

Learn from your mistakes, pick up, move on, and do it better next time.
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Old 10-26-2005, 12:35 PM   #11
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Quote:
Originally Posted by Buck-O
PLEASE!!!! Do NOT pull the knee jerk reaction of "everyone hates me cause im a girl reviewer" becuase its not true.
I don't see where Jen brought that point up at all. It has nothing to do with her being a girl at all, it's a matter of her not being a hardcore speaker guru. Neither am I, as I mentioned. I would have written the review probably exactly as she had.

In future speaker reviews, we will take a look at others around the web to see what people want to know. We will likely also get one of our staffers who are more audiophile-ish to take a stab at them instead. At any rate, I enjoyed Jen's review, and in over 2,500 reads, this was the first complaint I've had, so apparently not everyone cares about every tech spec.

At any rate, welcome to the forums
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Old 10-26-2005, 01:08 PM   #12
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Red face ^^

Everyone loves me. What are you talking about? :P I expect some people to reflect negatively on my reviews. Which is fine. Its all part of the job, and I will take it in stride, for constructive criticism is important to refinement. Remarks directed at me to help me better my reviews. I'm an artist, I deal with it all the time.

But it doesn't mean I have to be happy about it... which I am entitled to, and partly thats with myself. Yet as stated before I am a lifestyle reviewer, not an in depth hardware reviewer. I list the aspects of it, how 'I' see it, and yes that may not be a technical listing, and obviously will not please everyone. To you that is describing a piece of hardware wrong because I'm not listing the parts right, but not all people are looking for the internal workings of it. They just want to know how well it works, is it worth buying. Thats what I do. All of my reviews have been on how the piece looks and functions in every day applications.

I will always have room to improve, and will be working to better myself in tech areas. If I make mistakes I will learn from them, just like anyone else. Just because I'm a 'girl' doesn't make me ignorant or silly, and most certainly not incapable of taking criticism.

Thanks for the input. I'll take your suggestions into consideration on my next review Buck-o.

Have a peachy day.
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Old 10-26-2005, 08:31 PM   #13
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Thanks for the replys guys. I must say it is a nice change to actually have someone read a post subjectivly, and take what is being said into consideration, rather then flaming away becuase i am some noob coming in here trying to "start somthing".

THe comment about girls and reviewing just comes from the years of being around, and even in the industry, and having worked alongside female reviewers. There is a tendency fot hem to get easily discouraged with critisism, and it turns into a me against the world scenerio. Im not saying thats what Jen was doing...im jost forwarning against that kind of mentality turning into somthing much worse. And im optimistic about the future, given Jen's honest responce.

I think that there are certain pieces of hardware that are difficult to review in a lifestyle review format. Cases, displays, and speakers, i think fall easily into that caragory. Not only is there a large amount of technicle info that needs to be displayed, but there also has to be subjective data on ease of use, setup, quality, etc. that have to go along with it. I think reviewing any one of those items, and especially speakers, is a hard task for anyone, reguardless of which side of the review spectrum your on. Becuase there is such a fine line to walk between them. Especially when the technology is so varied among one type of prodyct segment, and people usually feel so strongy about a certain form of that tech as the best.

I think that your future media reviews will have a much broader feel in their scope, and provide just as much technicle information as they do subjective information. And merrying those together can only bring you both great success. And i think your both more then capable of getting it right the next time.


Thanks for listening.

B

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Old 01-25-2006, 01:53 AM   #14
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Hi!
Can anyone tell me some facts about his/her opinion about the Z-4 speakers? I only saw posts about the review and Jen.
Does anyone have such speaker system?Does it really sound that good?
My Z-4 set is arriving today..I hope it won't disappoint me....
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Old 01-25-2006, 06:39 PM   #15
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I have heard great things about these speakers from others, and never anything bad. You will definitely enjoy them.
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