Tang Band W5-704D 5-1/4" Woofer-- has anybody used this? - Page 3 - diyAudio
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Old 27th June 2008, 02:16 AM   #21
GM is offline GM  United States
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Measured specs MLTL:

L = 47.75"
CSA = 39.791"^2
zdriver = 15.946"
zport = near/at the bottom
dport = 2.5"
Lport = 3"

All dims i.d. and approximate. Simmed stuffing density = 0.25 lbs/ft^3 polyfil.

GM
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Old 27th June 2008, 02:24 AM   #22
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Quote:
Originally posted by loninappleton

What kind of BSC would be needed on a wide baffle front with
rounded edges?
Rounded edges unless very large radius are strictly cosmetic. Don't know about BSC, this is very room/personal preference dependment, so my advice is to use MJK's ajustable one to dial it in, then replace the pots with resistors.

GM
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Old 27th June 2008, 03:58 AM   #23
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Quote:
Originally posted by GM
Measured specs MLTL:

L = 47.75"
CSA = 39.791"^2
zdriver = 15.946"
zport = near/at the bottom
dport = 2.5"
Lport = 3"

All dims i.d. and approximate. Simmed stuffing density = 0.25 lbs/ft^3 polyfil.

GM
Thanks and thanks for the follow up. This baby is getting bigger.

It would certainly be a fresh build rather than the scraps (not long enough) that I have.

I should pop for a Martin King subscription just for the work
you, GM, put into these things.

This looks like a lot of wood for a 5.5 in driver.

48 inches long (about the same as my BIBs with additional 8 in
extensions

15 inches down

Figure 8 in wide by 5 inches deep internal dimensions

The leg extensions give room to stick the port in the bottom.

Last time I bought wood it was on deal. Haven't seen any fresh deals. I will be sure to save this off so I don't have to go looking for it later.

cheers.
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Old 27th June 2008, 05:21 AM   #24
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You're welcome!

Seems fair, some others have.........

Yeah, the relatively high Qts needs room to 'breathe'....... Back in the naive days of DIY speaker building there was a really nice sounding 8" RadioShack driver that they recommended a 1 ft^3 sealed cab for, but I got to experimenting and wound up with a 6 ft^3 pipe horn tuned to ~27 Hz that really wowed folks, but it did look rather lost on its 30" wide baffle.

FWIW I've built many a project with scrap from a large commercial construction site for either free or next to nothing since they have to pay to dispose of it.

GM
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Old 27th June 2008, 05:34 PM   #25
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Quote:
Originally posted by GM
You're welcome!

Seems fair, some others have.........

Yeah, the relatively high Qts needs room to 'breathe'....... Back in the naive days of DIY speaker building there was a really nice sounding 8" RadioShack driver that they recommended a 1 ft^3 sealed cab for, but I got to experimenting and wound up with a 6 ft^3 pipe horn tuned to ~27 Hz that really wowed folks, but it did look rather lost on its 30" wide baffle.

FWIW I've built many a project with scrap from a large commercial construction site for either free or next to nothing since they have to pay to dispose of it.

GM
Those are good sorts of places to get 'sonotube' for making subs.
Most of what I see in the rubbish looks like, well, rubbish.

In the 'next to nothing' department, how do you negotiate for the stuff you want to haul off?

I have a memory from when I was a kid and they were taking down the brewery ( I bet they wish they had that back instead of the
police station) and on a weekend some dad and his kid were out cleaning bricks to make a barbeque or something.

Around here even though the area is well off (meaning not in the bread line yet) people pick junk. I do it. My neighbors do it.
And there's freecycle too.
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Old 3rd July 2008, 03:27 PM   #26
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Well, much of the time I had an architect buddy that allowed me to 'cherry pick', but I had to take the 'wheat with the chaff', i.e. a full truckload, so if you don't have a yard/whatever big enough to store/separate it into various piles or a neighborhood covenant that prohibits such 'trash piles' period, then all you can do is work the best deal you can or get an architect buddy.

Of course you must have a city/county garbage collection service that will pick up what you don't want either as part of the regular trash or for only a small surcharge. That, or a pick-up/mini-van/whatever and nearby landfill. A nearby metal recycler to recoup some of your costs is a nice perk too.

GM
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Old 3rd July 2008, 07:19 PM   #27
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The project is on hold til PE gets the Tangband back in stock on or around July 15th.

If someone wants to sell one off or trade you can respond to the thread.

Since I'm making a test box with some things I have around that go pretty close to the original measures (ie not a floor stander) I'd be
sticking to that. There may not be the bass extension for a larger box
but the goal is to actually find a happy medium between clarity
of a smaller tuned box and boominess from a larger one ( something that has been a criticism of the VTL for instance.)

I have no knowledge of how to make crossovers but maybe
if this topic gets going I'll add on something to the smaller cabinet design.
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Old 19th July 2008, 07:11 PM   #28
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Default back in stock

The W5-704D is back instock at PE as of today.

Though this thread is moved, the goal is still to use it as "an
only" to get music reproduction.

Over on Loudspeaker Full Range they have talk about a
Tangband full range 5 In for about 4 times as much.

W5-1611sa

I would buy Fostex any day over TB in that price range.

However, making a 5 in. for less than a Fostex 4 in. has lead me to want to do this project.

No responses on my offer to trade 2 TB 871 3 inchers for one
W5-704D so I may have to buy new.

Today I'm looking for some hand holding.

In anyone's considered opinion will this driver _play music_
by itself with measured freq of 13,000hz? I'm asking about
actual usable human hearing range to play jazz and classical quartets and symphonies.
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Old 30th July 2008, 01:47 AM   #29
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Default GM are you on this thread yet?

I am looking for the original sim for this driver-- not the big box one but
the more compact first edition simmed from what was said to be
bad specs from TB.

Can you repost that since this thread has been banished from full range?

And yes I have tried search. Search is useless for me on most boards-- give the driver model and zero comes up.

Anyway, back in the shop I took one of my old MLTL boxes from the
original FE127e and slapped in one of those 50 cent Panasonics I got to make line arrays (bought 16.)

I'm using a boom box as a source. The sound isn't too bad considering all the considerings.


Other thing is a new TB that is a 4 inch but way up there in price
on their 'new' list. It hasn't materialized at PE yet but the price is posted at $77 ea.
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Old 30th July 2008, 03:24 AM   #30
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The way to search drivers is to break it up. IOW I inputted W5 in the 'Search for items including these words:' box and 704D in the 'and optionally containing these words:' box, then looked in any thread from the 'fullrange' forum and found it in the BIB thread: http://www.diyaudio.com/forums/showt...00#post1542000

Sometimes you have to get creative to overcome some code writer's need to express himself through what I perceive is obtuse programming.

A $77 TB?! It's going to have to be pretty special to make it worth $54/pr. more than the CSS FR125ST IMO.

GM
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