Planar magnetics & ribbons

[fivestring]

Hi,

Here is a pair of loudspeakers I have made with the excellent Hygeia drivers. Their staff was very supportive and welcoming with my particular needs. I wanted a ribbon tweeter with a flat foil and an open back midrange magnetostat (their original one was closed on the back).

Hygeia

An externally hosted image should be here but it was not working when we last tested it.

My site:

http://loudspeakers.we.bs/

 

[poldus]

Amazing job! Could you comment on the differences between those planar mids and the neo8?

 

[fivestring]

I would say Hygeia RM-8402 is much better IMHO, but please notice my version was different than the stock unit, which is closed at the back (mine was open - dipole). However, I feel they are best used in an dipole fashion, like on the prototype loudspeaker below:

Hygeia RM 8402

 

[Baldin]

I don't see any prices on Hygeia's pages.
How much did you pay for the mids and the tweeters?

Looks like realy nice speakers. Good job 😉

 

[fivestring]

Don`t hesitate to inquiry them, the prices are good.

regards

Miro

 

[Charcoal]

fivestring,

What is the exact model of midrange planar in your speaker?

 

[fivestring]

fivestring,

What is the exact model of midrange planar in your speaker?

It is Hygeia RM 8402, but it is not a stock unit, as I have requested an open back.
The stock unit is

here

 

[Charcoal]

What speaker sounds better: from your fisrt picture or second?

What is the low frequency cut off for planars?

Could you give moredetails about this project?

 

[Charcoal]

Just received responce that they sell only to speaker producers.

 

[Atom666]

The RM-8401 http://www.hg-audio.com.tw/ribbon-RM8401.htm looks like a clone of the Monsoon driver. Some of the others look like the BG Neo8 and other BG drivers Maybe this is where they have them made?
Andrew