"Fullrange" 4" or 5" ?

[TroelsM]

Hi.

Been thinking about this for a few days. I would like some input on the general idea and input on driver-selection.

I'm not going for super-hifi, but for an alternative speaker that cheap to make.

The Idea is to use a cardboard-tube for cabinet. The dimensions would like 18 cm diameter and height about 1.20-1.60m. Thickness would have to min 10mm.

I would probably use 4 (or 5) 4" or 5" bass/mid-range/full-range units and a tweeter. If I go all the way, it should bed an active speaker as I have most components to do 6 amp-channels.

I have a lot (10-12) old full-range Philips units and I might use them for a first try. They a crappy looking and only 12W a piece, but it might just work.

So, any ideas on the driver selection before i decide to make this or not? Whats the price for 10 4" units with acceptable data?

Regards TroelsM

 

[TroelsM]

Here's a quick drawing shoving the idea.

Any inputs?

Regards TroelsM

 

[planet10]

A 2 1/2 way or a 3 way? Some of those old Philips are pretty good -- they do need mods to get the most out of them. Which ones do you have?

dave

 

[TroelsM]

Hi Dave.

I haven't gotten the detail figured out yet. Right now it's only a feasibility-study... If I'm gonna´ make an active system I might as well go all the way and make it a 3 way... Don't know. I have to think about getting the most "volume" out of the small units...

I'll try to find some data on the Philips units.

As I remember they are approx 5", 12W and with a paper-diaphragm. Voice-coil looks to be aluminium or perhaps copper. VC-diameter is approx 15mm.

Have you got any links to info about these old Philips-units?

Regards TroelsM

 

[planet10]

Here are a couple sites with some info:
http://www.hupse.nl/radio/speakers/A.htm
http://www.sitecenter.dk/otc/nss-folder/philipsfullrange/

Most have an ADxxxx number on the back.

I have some info culled from my eBay auctions.

http://p10hifi.net/planet10/vintage-driver-gallery/philips/

dave

 

[TroelsM]

Hi Dave.

My units look as if they are somewhat newer than the ones in your links. Sadly the ones you link to look much better than mine :-(

Anyways, I'll try to find some data or numbers on them.

Regards TroelsM

 

[TroelsM]

Here's a shot of the units I'm planning on using:

Do they look familiar?

Regards TroelsM

 

[TroelsM]

And the backside:

The label is hard to read. My mistake.

Regards TroelsM

 

[sreten]

http://www.linkwitzlab.com/Pluto/intro.htm

Is worth a look if your considering active. Personally I'd reflex them low.

🙂/sreten.

 

[planet10]

Do they look familiar?

I don't see many of the eared Philips but they are quite nice. The little VIFA tweeter is a decent performer too...

dave

 

[TroelsM]

Hi.

Planet10: "I don't see many of the eared Philips but they are quite nice." - So I might get a a good result from these?

Have you got any experience with those Philips units? Datasheets? Sound? As far as I remember, I've seen a datasheet with a RMS-rating of 12W. That's ~ 50W RMS with 4 units... That's not a lot... Any idea of the sensitivity?

Regards TroelsM

 

[planet10]

Have you got any experience with those Philips units?

Not really with this specific one... I wouldn't worry about the power rating...

dave