V*****n
发帖数: 893 | 1 OK, I am building someone else's designs. I don't have the knowledge or
equipment to design my own speaker yet. I am not gonna bother telling you
what designs I am using since there are tons of free designs online. the
ones I choose are nothing particular. but basically right now I am building
a pair of 3.5-way towers for my 5.1 project and a pair of small bookshelves
as a gift to some friends. later on I will build a center which matches the
towers. If I like the small bookshelves, I may build |
V*****n
发帖数: 893 | |
V*****n
发帖数: 893 | |
V*****n
发帖数: 893 | |
V*****n
发帖数: 893 | 5 Bought the plywood for the bookshelf speakers today from lowes. this batch
has incredible quality. I didn’t see a single void. The veneer on one side
is blond wood, super high quality, on the other side is lower grade brich
with eyes that actually look very interesting. I had the 4'*8' piece cut to
sizes at lowes that I will be using. And I was very lucky that the gentleman
who did it for me was very good and patient. The cuts are near perfect. |
V*****n
发帖数: 893 | 6 I experimented with some sizes for the tweeters on a piece of scrap wood.
The result is near perfect. Note the tweeter is not sitting flush because of
the foam on the back of the faceplate. |
V*****n
发帖数: 893 | 7 made the tweeter and woofer mounting hole on the baffles. very happy with
the results. |
V*****n
发帖数: 893 | 8 finished the baffles today and if I am lucky, I should be able to finish the
wood work and start painting the bookshelf speakers tomorrow. |
V*****n
发帖数: 893 | 9 an update: the boxes are finished with a glossy clear-coat. It has been two
days but the Polyurethane is still not hardened in the garage. so I am
laying them our in the sun right now. hopefully I can assemble everything
tonight and start breaking in the speakers. |
V*****n
发帖数: 893 | 10 finished the bookshelf speakers Friday. has been breaking them in. so far so
good. my wife was pretty surprised by the how good looking the speakers
turned out that she wants to keep them (OK, she may have a low expectation
for "home made" speakers). and we are both impressed with the performance.
aside from noticably better resolution, there is truely nothing standing out
, which is what I thought what speakers are supposed to be. |
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x***k
发帖数: 3311 | 11 Amazing pieces of art in progress! Sorry for interrupting but...
Q: how did you cut the recess around the speaker holes, with a router? |
V*****n
发帖数: 893 | 12 yes, with a plunge router controlling for depth |
x***k
发帖数: 3311 | 13 A very handy man, dude.
【在 V*****n 的大作中提到】
: yes, with a plunge router controlling for depth
|
V*****n
发帖数: 893 | 14 well, I want very good sound but don't want to spend a load of money. that's
the only way to go. the cost of drivers and components for the 5 speakers
I plan to build ($1,000) plus the shop quality tools ($600) I bought will
be only a third of what I will have to pay for similar quality commercial
speakers. definitely a better way to spend some spare time than arguing
about how this speaker/headphone sound better than the others for this kind
of music. But I don't think designing speakers is w
【在 x***k 的大作中提到】
: A very handy man, dude.
|
x***k
发帖数: 3311 | 15 Well said, man.
As a personal preference, I liked silk dome tweeters better than metal (Al
or Ti) but if you went with KEF kit that may not be an option.
Q: are you going to have front cover or not? If so, what/how are you going
to do with that?
's
speakers
kind
time
【在 V*****n 的大作中提到】
: well, I want very good sound but don't want to spend a load of money. that's
: the only way to go. the cost of drivers and components for the 5 speakers
: I plan to build ($1,000) plus the shop quality tools ($600) I bought will
: be only a third of what I will have to pay for similar quality commercial
: speakers. definitely a better way to spend some spare time than arguing
: about how this speaker/headphone sound better than the others for this kind
: of music. But I don't think designing speakers is w
|
p*********y
发帖数: 802 | 16 太牛了。。。
so
out
【在 V*****n 的大作中提到】
: finished the bookshelf speakers Friday. has been breaking them in. so far so
: good. my wife was pretty surprised by the how good looking the speakers
: turned out that she wants to keep them (OK, she may have a low expectation
: for "home made" speakers). and we are both impressed with the performance.
: aside from noticably better resolution, there is truely nothing standing out
: , which is what I thought what speakers are supposed to be.
|
V*****n
发帖数: 893 | 17 both silk domes and metal domes have pros and cons. metal domes tend to have
lower distortion but a ultrasonic break-up node (ringing or resonance).
soft domes tend to have smooth and extended frequency response but higher
distortion. a good designer will always work around the cons in each driver.
all well designed speakers (low distortion and smooth response) sound alike
. :)
I am not gonna have grills for the speakers because they defeat the purpose
of high quality speakers. the center and th
【在 x***k 的大作中提到】
: Well said, man.
: As a personal preference, I liked silk dome tweeters better than metal (Al
: or Ti) but if you went with KEF kit that may not be an option.
: Q: are you going to have front cover or not? If so, what/how are you going
: to do with that?
:
: 's
: speakers
: kind
: time
|
x***k
发帖数: 3311 | 18 Dude, I know what you are sayin.
An option for the front grill.
I bought a pair of Meridian A500 speakers without the grills. The original
speaker design, I was told, had a cloth with a rubber/elastic band so you
can put it on with tbe elastic band go into the groove.
So, I just bought speaker cloth at Amazon.com and rubber strings(for holding
window screens) from HomeDepot and squeezed it into the groove to hold the
cloth. So cheap, functional, and easy grills were in place now, as you see
in
【在 V*****n 的大作中提到】
: both silk domes and metal domes have pros and cons. metal domes tend to have
: lower distortion but a ultrasonic break-up node (ringing or resonance).
: soft domes tend to have smooth and extended frequency response but higher
: distortion. a good designer will always work around the cons in each driver.
: all well designed speakers (low distortion and smooth response) sound alike
: . :)
: I am not gonna have grills for the speakers because they defeat the purpose
: of high quality speakers. the center and th
|
V*****n
发帖数: 893 | 19 Thanks for the suggestion! that would be about the only way I would accept a
grill. but the thing is, it would touch the woofer surrounds and
definitely won't work with a mid-dome. the best way is a design like the
vandersteen speakers, whose designs I am actually quite fond of.
original
holding
the
see
【在 x***k 的大作中提到】
: Dude, I know what you are sayin.
: An option for the front grill.
: I bought a pair of Meridian A500 speakers without the grills. The original
: speaker design, I was told, had a cloth with a rubber/elastic band so you
: can put it on with tbe elastic band go into the groove.
: So, I just bought speaker cloth at Amazon.com and rubber strings(for holding
: window screens) from HomeDepot and squeezed it into the groove to hold the
: cloth. So cheap, functional, and easy grills were in place now, as you see
: in
|
x***k
发帖数: 3311 | 20 OK, make sense. Actually w/o grills is better for the look and sound
anyways. Can't wait to see the finished products.
a
【在 V*****n 的大作中提到】
: Thanks for the suggestion! that would be about the only way I would accept a
: grill. but the thing is, it would touch the woofer surrounds and
: definitely won't work with a mid-dome. the best way is a design like the
: vandersteen speakers, whose designs I am actually quite fond of.
:
: original
: holding
: the
: see
|
|
|
V*****n
发帖数: 893 | 21 thanks for the good words. Building my first speakers really was a game
changer. Now I'm gonna sell off our IQ3 and AR94 since I can easily build
speakers a couple of notches better. I am currently investigating ways to
improve the strength and precession of the enclosure construction. that
might delay things a bit.
【在 x***k 的大作中提到】
: OK, make sense. Actually w/o grills is better for the look and sound
: anyways. Can't wait to see the finished products.
:
: a
|
V*****n
发帖数: 893 | 22 a few more picture with better lighting. |
V*****n
发帖数: 893 | 23 a quick update:
building even a small pair of enclosures turned out to be harder than I
thought. Towers will require much greater precision due to their size. I got
some great new tools - a table saw and a drill press - to achieve
satisfying results. Right now I am focusing on building jigs. Hopefully the
super exciting tower build will start next week. |
t****b
发帖数: 482 | |
V*****n
发帖数: 893 | 25 just cleared the thread to make room for the LCR build. all the boards have
been painstakingly cut. |
d******0
发帖数: 22800 | 26 牛啊，建好了，偶给你放精华区。最好写的也能让后人跟着DIY。 |
V*****n
发帖数: 893 | 27 finished the baffles for all LCR last night. this build is so much work and
complicated it is killing me. lots of much heavier lifting. sorry about lack
of pictures. my cheap camera is not home. didn't want to bring my nice
camera into the dusty workshop. honestly, I am so tired, I don't even have
anything left to bring everything together to take a picture. Last night I
made a few errors. not visible on the outside or cause any structural
concerns. but still made me unhappy. I mean, the sound q |
V*****n
发帖数: 893 | 28 clamped the center speaker yesterday. very happy with it. it's gonna be
super strong and rigid. it's perfectly straight. all that hard work paid off
. it has 7 internal structural reinforcement, all joints are recessed to
increase rigidity. you have to pay a lot of money on a commercial speaker to
have this level of construction. the towers are all ready for gluing as
well. they have 10 internal reinforcement each. really complicated to make
the way I did it. I doubt I will build a speaker this |
s*******y
发帖数: 46535 | 29 真不错
off
to
some
【在 V*****n 的大作中提到】
: clamped the center speaker yesterday. very happy with it. it's gonna be
: super strong and rigid. it's perfectly straight. all that hard work paid off
: . it has 7 internal structural reinforcement, all joints are recessed to
: increase rigidity. you have to pay a lot of money on a commercial speaker to
: have this level of construction. the towers are all ready for gluing as
: well. they have 10 internal reinforcement each. really complicated to make
: the way I did it. I doubt I will build a speaker this
|
V*****n
发帖数: 893 | 30 an update:
all woodworking is done. I planned to stain the speakers Ebany, which is
basically black. but I don't really like the rather fakish color of stained
wood and the prestain I used on the speakers looked really pleasant to me.
so I just left them that way. I will apply three coats of polyurethane in
the next two days and build the Xovers adn test the drivers tomorrow. Sunday
will be the big day of gluing damping foam, soldering all joints, and
screwing everything together.
after that, ti |
|
|
x***k
发帖数: 3311 | 31 Dude: blank is good and can't wait to see the finished products.
Just curious, did you have woodworking experiences before? |
V*****n
发帖数: 893 | 32 no
【在 x***k 的大作中提到】
: Dude: blank is good and can't wait to see the finished products.
: Just curious, did you have woodworking experiences before?
|
V*****n
发帖数: 893 | 33 a picture update! things are looking good. these are after prestain, but
before polyurethane (clear coat). I think the prestain increase the contrast
in the wood gain, making me decide not apply ebony stain. I tried to finish
the xovers tonight. but the zip ties I bought were too short on some bigger
components. I hate it when that happens. will finish the xover assembly and
driver testing tomorrow. I am getting more and more anxious to finish them
and give them a listen. |
V*****n
发帖数: 893 | 34 this is a detail picture after the first coat of polyurethane applied. It
made the wood color very rich and sophisticated. hard wood has that
shine soft wood simply don't have I love it. I love it. all the wood
work really make the speakers look good. but it's just hard to make
everything perfect, especially with plywood. moving the router a little too
quick the big round over bit took some chunks off the corner. that speaker
was perfect in everyway other wise. anyway, at this stage, I really d |
x***k
发帖数: 3311 | 35 EXCELLENT!
I would try a little color stain panel on small cut off boards to compare
results before the final coats. Just to make sure you like the color and
finish. |
V*****n
发帖数: 893 | 36
tried. didn't like it. stain simply didn't look as nice as the corespondent
real wood color. I have used red mahogany stain on pine and birch before.
the pine turned out really well. but I didn't like the way stained birch
looked like.
【在 x***k 的大作中提到】
: EXCELLENT!
: I would try a little color stain panel on small cut off boards to compare
: results before the final coats. Just to make sure you like the color and
: finish.
|
V*****n
发帖数: 893 | 37 Damn, I just blow a tweeter when I was testing. I thought I can finish
everything tomorrow. Now it take a week and a lot more money to replace that
fucking tweeter. |
i*d
发帖数: 2640 | 38 这么大的箱体，木头形变非常非常难控制。
试问有没有超低形变处理过的木材卖？
contrast
finish
bigger
and
them
【在 V*****n 的大作中提到】
: a picture update! things are looking good. these are after prestain, but
: before polyurethane (clear coat). I think the prestain increase the contrast
: in the wood gain, making me decide not apply ebony stain. I tried to finish
: the xovers tonight. but the zip ties I bought were too short on some bigger
: components. I hate it when that happens. will finish the xover assembly and
: driver testing tomorrow. I am getting more and more anxious to finish them
: and give them a listen.
|
V*****n
发帖数: 893 | 39 plywood is it. and it's light and stiff, which means higher resonate
frequency (above 2khz if well braced). There is not enough energy to
excite the resonate frequency in music.
MDF is much more uniform/consistent and has the lowest contraction. but it
just doesn't sound good as good because it's heavy and flexy, which
translate to lowered resonate frequency (to below 50hz). This can lead to a
dead feel in sound. The reason most commercial speakers are made of MDF is
that it's easy to work with
【在 i*d 的大作中提到】
: 这么大的箱体，木头形变非常非常难控制。
: 试问有没有超低形变处理过的木材卖？
:
: contrast
: finish
: bigger
: and
: them
|
l*******s
发帖数: 3562 | 40 2000k Hz???
a
standing
【在 V*****n 的大作中提到】
: plywood is it. and it's light and stiff, which means higher resonate
: frequency (above 2khz if well braced). There is not enough energy to
: excite the resonate frequency in music.
: MDF is much more uniform/consistent and has the lowest contraction. but it
: just doesn't sound good as good because it's heavy and flexy, which
: translate to lowered resonate frequency (to below 50hz). This can lead to a
: dead feel in sound. The reason most commercial speakers are made of MDF is
: that it's easy to work with
|
|
|
V*****n
发帖数: 893 | |
V*****n
发帖数: 893 | 42 kinda finished one speaker today. it sounds great even before broken in. the
bass sounded amazing. I'd say it really made the music sound full bodied. a
pair of grand speakers.
it is definitely too bright with the default tweeter resister. luckily have
have ordered the other two resister values when I ordered more tweeters. I
made some many freak mistakes today and I was just so pissed. and then the
biggest mistake of all is I realize that my zdt3.5 are build too tall (by 6"
). hopefully my 3.8 |
V*****n
发帖数: 893 | 43 Damn finished! I am in sonic heaven now. No matter how much time, money,
energy, frustration went into building these speakers, they don't even come close to the out-of-this-world sound quality. I am truly thankful to the designer for sharing his great creation. it's answer to a lot of prayers.
will post pictures tomorrow when lighting is good. |
V*****n
发帖数: 893 | 44 pic 1: air-core inductors, the best. the small inductor has been unwounded
to read the target value.
pic 2: xover board for the mid (left part) and tweeter (right four
components)
Pic 3: xover board for the woofers. the huge inductor is for the .5 (lower
woofer)
pic 4: finished xovers in the lower compartment of the tower. |
V*****n
发帖数: 893 | 45 view from the rear. it's surprising how much good foams can cost. the ports
are read cheap though, but works as good as any.
the tweeter is hard to put in in that little corner. |
V*****n
发帖数: 893 | 46 here you are! like I said, the birch has a shiny texture that adds the
complexity to the look. |
V*****n
发帖数: 893 | 47 details
the feet are made of 14 gauge wood screw, the cheapest way to do it
the paint surface, as you can see, is glossy but not mirror like |
x***k
发帖数: 3311 | 48 NICE!!! Finally.
The tweeters don't look like they are made of Ti but silk. |
