Silver Flute 6-1/2" Wool Cone

[LING GOWA]

Anyone know of a design for the Silver Flute 6-1/2" Wool Cone Shielded W17RC38-S (8 ohm).
Mad has them on sale.

http://www.madisound.com/catalog/product_info.php?products_id=847

I'm hoping to load these in an existing box that measures 14.5'' X 9'' baffle with .5 cu. ft. volume.

[jquin]

I don't know what your plans are.
You may wish to have fun with doing a design and making the mistakes and learning, in which case fill your boots.

However if you want a budget DIY speaker system then you are going about this the wrong way.
Look at the mission accomplished section.
As far as budget is concerned the Modula MT's are a good start
I have built some and recommend them as being excellent value for money.
If you want to cut costs a bit the use inductors with cores and dare I say bi-polar electrolytic capacitors.
You will avoid disappointment doing it this way. Choosing a driver on special and then building a system around it seems like a lot of hard work especially to get it to the level of the true and tried designs.
But hey it's your nickel. Don't feel pressured, different people are looking for different things when doing DIY.

Hope this helps

[LING GOWA]

I don't know what your plans are.
You may wish to have fun with doing a design and making the mistakes and learning, in which case fill your boots.

However if you want a budget DIY speaker system then you are going about this the wrong way.
Look at the mission accomplished section.
As far as budget is concerned the Modula MT's are a good start
I have built some and recommend them as being excellent value for money.
If you want to cut costs a bit the use inductors with cores and dare I say bi-polar electrolytic capacitors.
You will avoid disappointment doing it this way. Choosing a driver on special and then building a system around it seems like a lot of hard work especially to get it to the level of the true and tried designs.
But hey it's your nickel. Don't feel pressured, different people are looking for different things when doing DIY.

Hope this helps

Yes, I will be building the Modula MT as well very soon. It's just that I have a feeling that these Silver Flutes are under rated and I would like to try them out. Thanks for your input.

[cjd]

Silver flutes are nice drivers for the money. I'd cross it at about the same point and with similar filters (though I doubt very much it'd be a drop-in) to the RS180. Distortion issues on the top end.

C

[LING GOWA]

Silver flutes are nice drivers for the money. I'd cross it at about the same point and with similar filters (though I doubt very much it'd be a drop-in) to the RS180. Distortion issues on the top end.

C

I wouldn't use the crossover from another design. I'd go with a fresh one that is specific to the drivers. I'm trying to limit the tweeter to $20.00 if possible.
I have no idea how accurate these measurements are. I got them from Solen's website.

[Undefinition]

I have no idea how accurate these measurements are. I got them from Solen's website.

Wolf got some results with Silver Flute's graphs on that woofer. My own measurements with Silver Flute woofers, while doing the Orient Express, showed somewhat different results than Silver Flute's pretty, flat FR (ie: actual peaking w/ the cone breakup).

But I thought the W14RC25 was a fun little woofer nonetheless; and the build quality is just amazing... up there with the big boys. (Also, I was able to cross it above 2K with no ill effects) So it made me curious to try the 6.5" Silver Flutes. My hesitation came, however, when I was trying to do a box model. It seemed no matter how I fudged the box size and tuning, I couldn't get a lower F3 than if I had used the 5.5". Ironically, the same was basically true for the 8". Thus, I haven't gone out of my way to work with the 6.5" Silver Flute woofer. I'd rather spend my money on something I can get better bass extension or can get a higher XO point.

My $.02

[LING GOWA]

Thanks for the input, Paul.

[HareBrained]

Wolf got some results with Silver Flute's graphs on that woofer. My own measurements with Silver Flute woofers, while doing the Orient Express, showed somewhat different results than Silver Flute's pretty, flat FR (ie: actual peaking w/ the cone breakup).

But I thought the W14RC25 was a fun little woofer nonetheless; and the build quality is just amazing... up there with the big boys. (Also, I was able to cross it above 2K with no ill effects) So it made me curious to try the 6.5" Silver Flutes. My hesitation came, however, when I was trying to do a box model. It seemed no matter how I fudged the box size and tuning, I couldn't get a lower F3 than if I had used the 5.5". Ironically, the same was basically true for the 8". Thus, I haven't gone out of my way to work with the 6.5" Silver Flute woofer. I'd rather spend my money on something I can get better bass extension or can get a higher XO point.

My $.02

I found the same thing in modeling the SF drivers. And very similarly, the MCM 55-3870 (being used in Zaph's forthcoming ZVM5) is another 5" driver that performs as well as it's bigger brother (cast frame 55-38xx) . I also notice that the MCM driver is very flexible regarding the enclosure size, offering good response in a small vented cabinet while rewarding those who can go large.

[cjd]

Yeah, the 6.5's are rough box-wise.

The WR14's I'd optimally cross 1800Hz 4th order, but you can push it higher with less ill effect than the RS150... but not less distortion and probably not less loss of clarity or accuracy.

They're not entirely suited to a budget system - crossover cost feels out of place rather quickly with them.

Nice drivers though.

C

[cotdt]

The Silver Flute 6.5" is difficult to work with as it has a nasty breakup peak that occurs quite early, you'd have to cross low, which requires an expensive tweeter.