PROJECT 8 full range, paper cone loudspeakers.
 

So another guy wants the Project 7. I cant go again "into the same river". So I decided to modify it a little.
I changed all drivers to make an exceptionally detailed and musical speaker.
The Revelator for cost savings is substituted by the 9500. It is not as good but for the money it is very good. Very musical and easy to use. Its ferrofluid does the job of damping/cooling (and killing any micro detail).
The 8542 paper mid bass is substituted with my favorite midrange: 8640. FANTASTIC driver that is going out of production.
I bought the last pair in Poland just because I love them.
The gray paper cone, I thought, will look great with the antique 8562-00 26 cm bass unit. Yes, that is their best bass from the pre carbon era.
So it was born in my head: another very simple three way that you can build in one weekend and which is better than $$$ speakers from your shop.
Almost an ultimate scan speak experience on the  budget.
Less bassy than  Project 7, but a lot more refined. And that nice antique paper look !
 
 

Clicking on images will load hi resolution pictures.
 
 
This 13 cm little sucker is a great midrange driver. Ultimate detail. Female voices and violins sound awesome. Shame it will disappear from s-s offer.
4 gm moving mass, silk dome as a dust cap that is identical to the tweeter dome, rubber suspension, huge X-max, very low resonance etc. 		 This bass driver is very nice. Very soft and light cone produces really nice sound in the upper range. Can be crossed as high as you like. I do it at around 500 Hz. First order is possible. I do it 3 mH. I had those test boxes from Project 6 so I took the P-8 for a test ride before making the new boxes. The test box adaptation took only one hour but I was able to get the feeling what the new speakers will sound like.
I was shocked at the quality of bass. Sealed box of 100 liters seemed ideal for that bass unit. I was excited at the thought of building the new, "proper" boxes.		 The new boxes - to get to this stage for both cabinets took me 4 hours.
Plain MDF "backpack" is attached to very heavy, 40 mm front baffle of real wood - oak. 
I just LOVE to work with this wood. So much nicer than MDF. And when I route it, it smells like wood!
The front will be beautiful, giving the character to this elegant speaker.


 
Baffle detail, unfinished. Just 6 pieces of MDF (1 inch). 4 screws and lots of clamping.  Did I mention clamping ? Did I mention it can get dusty at times ?

The view from the back at the midrange opening. 
Frog perspective from the back side. As you see - no bi-wiring. I wanted to keep everything really simple for the new users.
You can admire my stained MDF with 5 coats of semi gloss polyurethane.
The front board really looks like a million dollar. I love working with solid wood. I will do it more often.  And it is so nicely absorbing the stain. Very dead on tapping test.  Everybody says WOW! 
I applied just one very very thin  invisible coat of semi gloss poly.


    
 CROSSOVER:
HIGH: 2nd  order, 2,2 uF/0,6mH
MID: 1 st order, 100 uF/0,6 mH
BASS: 3 mH first order.
Midrange : reversed phase.
 The whole thing Look how simple it is - a plain vanilla box, one shelf with four holes, foam lining, no stuffing, a 20 lb sandbag on the bottom. The sand is baked and dry and antiseptic.  I like wheels. Just imagine - everyone can move those speakers during cleaning and NO SCRATCHES on the floor. I apply these wheels (with ball bearings and stoppers) to all my speakers.   

 

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