What drivers are these?

[Eccu]

I bought couple weeks ago these cheap drivers.
I am planning those for computer speakers but I don't TS parameter for those.
I know that I can measure those parameters but if somebody knows something about those direvers, I will be very grateful.

[Eccu]

Dia is 10cm = 4 inch.

Any speaker box ideas for those?

I have some ideas, but I haven't decided yet:
- maybe I build boxes using wood layers
- or somekind horn
- or something unprecedented

[Volenti]

Their not shielded so you would have to be carefull with them close to the monitor.

Sealed enclosures are pretty hard to get drastically wrong, a 10L sealed enclosure would be a good starting point.

[Eccu]

I must try to make these drivers to DIY shielded.

Yes... I'm thinking that sealed box too. It's easiest way to make box.

But on the other hand... dipole is more easier way

[slackerbob]

sheilding is pretty easy to do. "borrow" some cookie sheets and stick them next to your monitor. thet should do the trick. (this kind of thing is currently protecting our TV, heh heh)

[Eccu]

Can this kind front panel cause some bad reflections or resonances?
I know these "horns" (or how those should be called) are used for tweeters but is there any disadvantages if I use that for midranges too because those drivers which I will use are "biconical" speakers.

[sreten]

They appear to be 'standard' taiwanese drivers, I've come
across several versions in my hifi fixing capacity.

A baffle may be easy but will have no bass
- you need a high Q driver for this.

In my experience Q is pretty low and needs to be raised by
sealed box loading. I'd say 10 litres is far too high a box volume.
They usually work well with 3 to 4 litres.
You could try 5 to 7 litres reflexed to 50Hz - but it is a bit hit
and miss.

A simple way of sheilding us to glue (use contact adhesive)
tin-plate panels to the interior walls of the enclosure.

If the depth of the cutout is ~ 1cm or less I can't see it would
cause any problems.

/sreten.

[SimontY]

Q is pretty low and needs to be raised by

It just so happens I was looking at some Visaton FR drivers, which are very cheap. They look JUST like this. I started to think 1 or 6 of them in an open baffle might let me hear the virtues of the open baffle approach, which I am becoming curious about. Would the Visatons be like these (low Q)? There are no TS specs on the (www.cpc.co.uk) website

-Simon

[sreten]

Like I said fairly standard Taiwanese drivers.

So if you start looking you'll find the chassis and magnet everywhere.

Low power rating (5W) and full range twin cone both suggest
a lightweight short voice coil - which suggests lowish Q.

JMO but the 'benefits' of open baffles are extremely
unlikely to be realised by a number of low cost drivers.

/sreten.

[SimontY]

Ok, I'll scrap that idea then