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Old 6th May 2007, 12:19 AM   #101
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Join Date: Feb 2004
Location: Appleton, WI
Default jeez

Quote:
Originally posted by chuck55
loninappleton,
I agree, the TB is not the most clear driver. I like it with a chip amp since the chip amp is pretty clear. No need for tubes with TB. Like I said the Sonic Barrier was better than egg crate foam and better than felt too. At least that would get rid of the internal reflections.

1 question I have:

How much power does this speaker need? Will a 20wpc chip amp be enough?

What do people here use to drive their TABAQ?
Jeez,


I made reply earlier but the dog must have eaten it.

Thanks for the reply chuck55.

I have a Yamaha RP U100 which I use for all my playback:
computer sound card, dvd player.

The Yamaha is 15 wpc and when using the TB's I have to dial
the volume pretty high.



The other speaks I use with is are a BIB build and an MLTL build
housing FE127e.


A/B test with this sort of mixture may be apples and oranges but
the TB should be able to at least play flat and musically crisp.
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Old 10th May 2007, 04:27 AM   #102
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Location: Appleton, WI
Default upside down

I continue to twiddle with the TABAQ.

I made another Tangband on a board (open baffle of about
a foot and half across) to compare with the TABAQ. Not much of
consequence in that. But to get the speakers the same listening height I flipped the TABAQ upside down and redid the port so that it
is inside.

Well to me it was a big improvement-- no noticeable boominess and it
A/B tested fairly well except that my B test is much higher efficiency
so the volume was all different.
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Old 10th May 2007, 08:36 AM   #103
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Location: Reykjavík
Default Re: upside down

Quote:
Originally posted by loninappleton
But to get the speakers the same listening height I flipped the TABAQ upside down and redid the port so that it
is inside.
Interesting, thanks for the writeup. Could you post a picture? Can't seem to visualize this
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Old 10th May 2007, 07:30 PM   #104
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Location: Appleton, WI
Default Re: Re: upside down

Quote:
Originally posted by kristleifur


Interesting, thanks for the writeup. Could you post a picture? Can't seem to visualize this

I am camera challenged and have often wanted to do some snaps
of things I'm doing but do not have a digital camera.


To visualize this look at Bjorn's design, then stand up
close to monitor and put the top of your head on the desk.



That's pretty much it. However, if you did not read the whole thread
I've taken the dimension of the port and cut that from 2in PVC and
put it on the bottom rather than the front. In other experiments with the TB in a TL I did not care for the result of the front port. And Martin's TL notes say that the port moves no air and radiates sound
horizontally at the terminus. this to me says that the radiated sound from the port is better places in the listening plane.

The idea comes from a build for the Jordan 92s and I've used it
in another MLTL build.
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Old 11th May 2007, 06:46 PM   #105
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Join Date: May 2007
Quote:
Originally posted by Solve
This is the best-easybuilt speaker with Tangband W3-871 or
like mine W4-1320!
Period!



Just build it and listen!!
Im the only one?

Solve

So you can just drop the W4-1320 in with no other changes to the cabinet?

I wonder if you can do the same with the W4-656SC?
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Old 11th May 2007, 09:38 PM   #106
Solve is offline Solve  Sweden
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Just can speak for my self and the W4-1320SA.
Yes it sounds very good!
I had the W3-871 in first and i was amazed!
But the bottom came with the W4.
Dont know if it works with W4-656SC.
Just try?



Solve
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Old 11th May 2007, 11:43 PM   #107
kage is offline kage  Hong Kong
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thanks for the thread
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Old 12th May 2007, 06:13 PM   #108
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Default Dipole with 1320

Some update on my similar design posted a few posts before.

I built a cabinet with 10cm x 17cm X 90 cm internal dimension a while back. I put one W4-1320 at 10 cm from the top and did not like the sound. It was thin and dry. Instead of doing simulation and making changes, I decided to cut another driver hole on the opposite side around 1/3 from the top to have smoother output like TABAQ.

Now I have a dipole speaker with one driver that is higher than the other one. The driver mounted 1/3 from the top faces the listener. I hope this will give a smooth output. I added a 2.5 mH inductor in series with the back driver to dampen the high frequency output. The two drivers are wired parallel and in phase.

After a bit tuning and playing around, I am listening to it (along with another straight TL with a single driver and different dimension) now. I like the dipole sound. Deep and strong bass with good balance!

I am sure if I mount the other driver also from 1/3 height and with coupling between the two drivers, I may make it even better. However, that will take some time. I am enjoying the music now.
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Old 13th May 2007, 05:05 PM   #109
Consul is offline Consul  United States
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I'm seriously considering making this my first speaker-building project, using the W4-1320SB. I was looking at inductors on Parts Express and I'm wondering if I need to pay really close attention to the DC resistance of the coil for the BSC circuit. The one I was looking at was the cheaper 20-gauge one, which has a DC resistance of .71 ohms:

http://www.partsexpress.com/pe/pshow...=255-048&DID=7

I don't see the need to go any more expensive than this.

Thank you for the help!
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Old 14th May 2007, 02:36 AM   #110
chuck55 is offline chuck55  United States
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loninappleton, it would be interesting tto hear your comparisons of the TABAQ vs. open baffle. I would think the TABAQ would have more bass since the box is producing bass from 50-100 hz although at a cost of lesser efficiency.

I have been listening to Tang-band's W4-616s in a 3.5 L cabinet. It is clearer through the midrange than the 871s and obviously more bass. It could use a supertweeter above 10kHz. This driver would be my 1st choice for a 4"er.
I found the 1320 to be bright since it has a 10dB rising FR.
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