9 year old Yamaha bookshelfs unveiling - not particularly impressed - diyAudio
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Old 14th May 2009, 02:51 PM   #1
konman is offline konman  Australia
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Default 9 year old Yamaha bookshelfs unveiling - not particularly impressed

Hey guys I thought i would share this with you.

I was cleaning up my computer desk, installing quieter power supply in my computer, when I had my screw driver handy, I'd thought I would crack open my yamaha speakers which i bought a good 9 years ago.

I wasn't impressed to say the least. Build quality of the cabinets is really cheap and nasty. I mean, I like these speakers, they sound "ok" for a bookshelf, and have served me well for a very long time. I bought a pair of budget strathfields 2 way floor standing cabs with a 6" woofer, and what looks like a bandpass config, around 6 years ago, and they were only 100 bucks.. sound pretty good and built ALOT better!!! haha

I cant recall what model these are, (i have a heavy bookshelf perched ontop of them) but here are a few shots of the drivers, and ahem... crossover network *cough!* and whats with using telephone wire for speaker cable... dammit!

1 cap for the tweeter and a full range woofer??? cmon Yamaha were is the 150 dollar value in these??.. just aswell that i don't thrash these, as they would surely be dead by now.

anyways.. :-)

Now i really cant wait to make my DIY 3 way jaycar floor standers.. and use PROPER crossovers!..

sheesh.

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Old 14th May 2009, 02:58 PM   #2
Dr_EM is offline Dr_EM  United Kingdom
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That's quite shocking for a speaker that retailed at $150 like you said . Just about the very cheapest parts and construction. I have some smaller speakers that came with a mini Hi-Fi, the total cost of which was probably about equivalent to $150 and the speakers supplied appear of higher quality than these!

Good luck with your new DIY 3-way, it should be a whole lot better!
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Old 14th May 2009, 03:08 PM   #3
konman is offline konman  Australia
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thanks Dr Em

I mean, If these Yamahas, sound ok to me.. not the best but ok, Imagine what a solid built, tuned, properly done cabinet with good quality drivers would sound like,

Im new to audio, and Im doing a lot of prep and theory before I build, so now this shocking discovery has actually made me more enthusiastic about my new project! woo! :-)
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Old 14th May 2009, 03:31 PM   #4
limono is offline limono  United States
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Why shocking? Very good binding posts cost $150 .Also quite expensive EPOS speakers and many other full range outrageously expensive ones used the same topology with just a cap to roll the tweeter in. I don't expect yamaha woofer to be the same quality but knowing British manufacturing mentality who knows If it sounds good it's good and perceived built quality has little importance. You may be sorely disapointed with your DIY efforts and blow your budget
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Old 14th May 2009, 03:44 PM   #5
konman is offline konman  Australia
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well..

using common sense, im sure by using thicker wood, sound deadening, padding, and a decent quality cross over, as well as drivers that are quality built with good specs, Im sure that i will be satisfied.

then again, who knows, as you say I may be dissapointed.. but thats what makes this fun right? :-) You never know what you will get when you first dive into this stuff :-)
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Old 14th May 2009, 03:58 PM   #6
limono is offline limono  United States
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Yes , I also think that you should be satisfied with proven DIY design and nice components but I also found out that some of those cheap mid-fi speakers are suprisingly musical and non fatiguing sounding with all kind of music.
Good luck with your project.
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Old 15th May 2009, 12:05 AM   #7
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having disected many similar boxes found on the side of the road, I have to sat that they are all pretty similar to this one; the only diff is that Yamaha & Panasonic (Matsushita) may have slightly better quality drivers, so they may be worth the effort of upgrading, most of the rest can be ditched (after testing of course, there are some unknown gems out there...)

First thing to try is some padding in the box & upgrade the xover to 1st order on the woofer, 2nd order on the tweeter
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Old 15th May 2009, 08:10 AM   #8
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What Pete said !!
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Old 15th May 2009, 09:45 AM   #9
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Default I have those !!!!!!!!!!!!!

I bought them for the boxes to put some silver flutes woofers in them.

As they were, they are a 6" with super tweeter, kinda bad, but I just wanted the box.

I had better luck taking their 3-way with the 8", disconnecting the tweeter, replacing the series cap to the 3" mid/tweet, connected the drivers so same polarity, added poly fill, then tilted it backwards till some time alignment. Then played with receivers tone controls till it sounded good. They used to sell for $100 at sears, I think the 2 way was closer to $70 or $80 10 years ago.


Norman
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Old 16th May 2009, 04:28 AM   #10
gedlee is offline gedlee  United States
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All I can say is that you guys have some distorted ideas of what speakers are like. Those are actually pretty good speakers, I've seen lots worse. And you know what, the total cost of those parts was maybe $25. That right, that's about what a speaker like that costs top manufacture in China, maybe less. 25$ in parts, sold to the distributor at $50 and at retail from $100 - $150. You think your getting a good deal when they "discount" it to $90.

Thats is the market. Nobody wants to pay for good speakers. The fact is that a DIY could probably not do better for that price or maybe even twice that price. You have to jump big time in dollars to beat what the mass market companies can do when they sell in volume. Basically at $150 you would have to jump to almost $500 before you could get someting that was "notably" better.

The market is like that. The "sweet spot" is dirt cheap, but just a little bit better costs a whole lot more. And then the next "notable" step above that and your talking very big price tags. The big guys "own" the "average" market, and, unfortunatley, few can afford to get above that.
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