Scan speak floorstander project?

[mlankton]

I have looked all week, and I haven't found a project that fits what I am looking for.
If anyone knows of an MTM, TMM, or TMWW project using Scan speak drivers, that is reasonably efficient (87dB or better), and has a nominal impedance of at least 6 ohms, please post. I found a Scan speak MTM, but it was 4 ohm nom and used 5.5" drivers where I want 6.5 or 7". I have considered the 2.5 clone, but I really want something in a 2 or 2.5 way MTM or TMM, or else a 3 way TMWW. Have also looked at the SP38, but I fear it will be more forward than I am wanting with the dome mid.
Basically what I really want is something a lot of people want, a D38 clone, but that isn't a possibilty at this time afaik. Hell, I would be happy with a Studio 140 clone.
If you know of a project that is along these lines, please point me toward it. Thanks

[infinia]

I haven't tried these, but seems reasonable to what you're looking for.
http://audioclone.free.fr./previn1.html

Could run the woofers in series( 1st find 4 ohm coils). Inductors and caps in LF crossover would double in value. Because of loss in sensitivity (series conn.) need to pad the tweeter down 3dB. Or consider a new amp that can handle high currents.

[johnny1]

99.9% of the woofers i know have 8 Ohms impedance.
If you use 2 of them in parallel you will have a 4 ohms Speaker. Period!

I think that connecting the woofers in series, will cause you more problems.

[andrew01]

Have a look here , might give you some ideas.

http://audiocomponents.nl/speakers/s...erence_eng.htm

[sreten]

http://www.troelsgravesen.dk/Diy_Lou...r_Projects.htm

Hi, should find something suitable here, /sreten.

[Alfetta87]

Most Scan-Speak's are 8 Ohms, you might find some customized 4 ohms version at the german distributor:
http://www.aos-lautsprecher.de/indexE.html

They have an 18W/4XXX in 4 ohms.

Originally posted by infinia
I haven't tried these, but seems reasonable to what you're looking for.
http://audioclone.free.fr./previn1.html

The Previn is quite old in design now (1994) and was intended to be a copy of the Response 3.0 from Proac (whilst Proac is using different drivers though, not available for DIY).
But they sound somewhat different, the crossover totally different. I know because I was the designer of the Previn back in 1994...

Why don't you want a 4 ohms design? Most of actual amplifiers can handle this impedance easily.

Cheers,
- dan

[johnny1]

Another idea is to use one 8" driver. It has almost the same effective piston area as 2 x 6.5"

If the speaker hight is still low for a floorstander, you can always extend the sidewalls to make it look like one.

[mlankton]

Originally posted by johnny1
99.9% of the woofers i know have 8 Ohms impedance.
If you use 2 of them in parallel you will have a 4 ohms Speaker. Period!

18W/16531G is 16 ohm.

[mlankton]

Originally posted by Alfetta87
Why don't you want a 4 ohms design? Most of actual amplifiers can handle this impedance easily.

I know I am opening myself up to ridicule by revealing my motive for wanting an easy load, but here it is.
I have a B&K 200wpc amp. It's up to driving just about anything. However, it's a mosfet design, and runs hotter than just about any ss amp you ever saw, and it's location is not the best ventilated spot I could have it in. However, it IS the best spot I could have it in as far as what I have to work with for placing my equipment in my home theater. I fear that if it was driving a harder load I would have heat problems forcing me to relocate it, and I just don't want to do so at this time.

[mlankton]

Another alternative I have considered is the Eton 8.2 3 way. Anyone have any thoughts on the Eton kit?