Alpair 10.3 dual help

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#41
Scottmoose said:
This is what happens when you don't keep a proper catalogue of your own work. Ploughing through a folder of work-in-progress & misc. designs, I ran across this, which I worked up last December. :sigh:
Click to expand...

You and Dave also did a bespoke design for me, for 2x Alpair 10.x, a number of years ago. Sadly, I never got around to building them. I think we called it the "megaTower" (or was it the "megaCastle"?) or something like that, since it was basically just a bigger version of the P-10 microTower in "Castle" configuration.

Since I (happily) paid for the plans but then never built them, I'd love to see someone else build them!

EDIT: Found the plans! It was called the "CogiCastle" and was intended for the Alpair 10.2 + Alpair 10P (which is what I had on hand) but I suspect it would work fine for 2x Alpair 10.3.

If Scott does not object, I can share the plans here.
 
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#44
planet10 said:
Depends on how they are wired.

I would wire in series and put a big shunt cap on the bottom one.

Advantages:
0/ in the bass you have 2 drivers working so each has to only do half the work.
1/ no change in level as transition is made between 1 ndriver and 2 drivers
2/ Since the driver limits are most likely
Click to expand...
regarding these statements, how big of a shunt cap are you suggesting ?
I've bought 2 pairs of these drivers, waiting them to arrive, the price was too good to pass upon, 240euro for 2pairs new and unused..
but, i have no idea how to utilize them all at once.

Could 1 driver be used in open baffle on top and the 2nd driver with shunt cap in a box like sibelius desing(different dimensions to keep normal 1m height).

Thoughts ?
 
#46
There is also this hybrid:

S

Thread 'Markaudio Alpair Hybrid'

Hi Guys,
long time no see.

It is time to do something new.
I have two pairs of alpair 10.3m lie around.
I looked at all the recommended enclosures and think the FHxl would be fine.
but the footprint of these is to large. I would like something in my favourite
100 x 25 x30 cm.
I also would like to do some dual driver as I already have them on hand.

A larger micro tower would be fine or a double MarKen wich I have seen already, but I did not find any plans for both of them.

So I'd like to develop something by my own.
playing around with hornresp I came to following approach.

It's kind of...
A

Thread 'First? clone of Alpair 10.3 hybrid'

Hello my new friends.

I am reading here time by time for several years.
I just registered to present my build of Spassgeneral's hybrid design.

As I am a big fullranger fan I decided to try the Alpair 10.3 hybrid tml/horn.
In general the downside of single driver designs is the little membrane area which compromises the bass authority. Using bigger fullrange drivers beam in hights so it is always a compromise.
the two driver approach seems to be a good solution to me.

Instead of using bb ply I decided to do a double walled, sand filled enclosure of mdf.

I choose to build these, since they are rather simple. I like the way they play and they also play the low notes quite well. Some have even thought that I have my subwoofer on when we've been listening to these. Unfortunately I have no comparison to other dual designs, so can't really say what is the best.
 
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