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Old 31st July 2005, 10:06 AM   #21
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For some reason it wouldn't let me attach the pic....

Click the image to open in full size.
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Old 31st July 2005, 10:07 AM   #22
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Quote:
Originally posted by soongsc
Where does it talk about this?

http://www.zaphaudio.com/minitest/

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Old 31st July 2005, 10:55 AM   #23
soongsc is offline soongsc  Taiwan
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Quote:
Originally posted by planet10
For some reason it wouldn't let me attach the pic....

Click the image to open in full size.
That's a neat way to blend the driver with the box, can you take the driver out if it needs replacing?

Quote:
Originally posted by planet10



http://www.zaphaudio.com/minitest/

dave
Ah! Now I remember. I never get smooth responses like that when they are boxed.
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Old 31st July 2005, 10:59 AM   #24
Nuuk is offline Nuuk  United Kingdom
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Quote:
That's a neat way to blend the driver with the box, can you take the driver out if it needs replacing?
Yes, drivers look much neater when the flange and screws/bolts are concelaled!

That could be done by making the speaker as usual, then adding an extra panel on top of it. If you use screws and key slots, you can slide the extra panel over the front but be able to remove it to get at the driver if necessary.
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Old 31st July 2005, 11:36 AM   #25
soongsc is offline soongsc  Taiwan
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Quote:
Originally posted by Nuuk


Yes, drivers look much neater when the flange and screws/bolts are concelaled!

That could be done by making the speaker as usual, then adding an extra panel on top of it. If you use screws and key slots, you can slide the extra panel over the front but be able to remove it to get at the driver if necessary.

Won't there be vibration coupling if you do that?
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Old 31st July 2005, 11:47 AM   #26
Nuuk is offline Nuuk  United Kingdom
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Quote:
Won't there be vibration coupling if you do that?
Not f you out a bit of thin cork or similar at the back of the 'extra' panel.

And alternative is to mount the driver from the rear and have a removeable rear panel.
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Old 31st July 2005, 02:39 PM   #27
Zaph is offline Zaph  United States
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Vikash: I like the look of those. Classic styling.

Quote:
Originally posted by richie00boy
I see on your website that you sell the Tang Band's. What made you choose this model from the large range by Tang Band and is the 0.5mm Xmax quoted on your website correct? It seems uselessly low.
It's true. I've ripped one apart, and the voice coil is 7mm while the gap is 6mm. In this case, .5mm isn't as bad as it seems, because of the large gap height. The speaker may run out of Xmax fast, but it overloads slowly and gracefully because the tall gap has a high percentace of coil in it at any give time.

So while the Xmax is .5mm, you'll generally get 1.5mm one way before distortion starts to be audible.
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Old 31st July 2005, 02:54 PM   #28
Zaph is offline Zaph  United States
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The B3S on the other hand, has a 9mm long voice coil and a relatively small 3mm gap. So it gets more Xmax for starters, but when distortion sets in, it comes on fast.

The B3S and 871 are a little closer in realistic output than their Xmax figures say, though the B3S still has effectively double the swept volume before distortion sets in.

These drivers took very different routes to voice coil and gap configurations. The 871's larger gap is what gives it a little more efficiency, though efficiency is less important than ultimate output potential with speakers of this low power handling. (unless you are using them for a midrange)

Ps. Dave: I like what you did with the Aura NS3. Rear mounting looks very nice. I might have to try that with the next set I do. (Possibly 4 per side in a MMTMM)
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Old 31st July 2005, 05:29 PM   #29
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Quote:
Originally posted by soongsc
That's a neat way to blend the driver with the box, can you take the driver out if it needs replacing?
I haven't seen these speakers yet -- i believe the back comes off.

I do like the drivers mounted from behind.

dave
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Old 31st July 2005, 05:41 PM   #30
jemraid is offline jemraid  United Kingdom
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I do the same kind of mouting with mine, I can easily try other units or replace the existing ones if I put my finger through the cones.

To try a new pair or when I first listen I use a ring of Blue Tack and push it down heavily it's surprising how much effort is needed to part two pieces of wood held together like this.

Rgds - Jem
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