Fonken 167 enclosures build- notes

[brucegseidner]

50% is not much to ask in a cosmetic augmentation and I too like the look of a single forward driver. I thought it would not be much trouble to extend the bottom cabinet, making it deeper than the Fonken167 top. This would keep the front and sides svelte and at worst I could have a giggle when enjoying the utterly base extension of the cabinet, thump thump, playing "baby got back."

Now that I am saving money going from the SDX10 to the SDX7 I will just place an order with Parts Connection instead of scrounging around, dumpster diving, and Ebay snipping. May I ask the values and arrangement for the space age resistors and capacitors, that with some point to point soldering, will sit ahead of this amplifier->SDX7?

[planet10]

John (aka VictoriaGuy) built his with a set of 7" Easttech on the front. I to prefer them on the side or back. as it is a subwoofer it makes little difference, except on the back if used close to a back wall you'll get more room loading/gain.

dave

[planet10]

Originally Posted by brucegseidner

Now that I am saving money going from the SDX10 to the SDX7

For SDX7 you want the volume as drawn (and is the woofer shown), but add braces not shown to eat up a bit of volume. And you can get away with just lining the walls. This will give critical Q and refiring taking advantage of room gain give surprising bass for a 7" driver. It also has smooth response up to over 1kHz so a simple CR PLLXO is likely sufficient. I'd cross over in the 60-100 Hz range. What are you going to use for the top end?

IMO the SDX7 needs at least a minimum of modification to be really useable.

Alpair 5 project completed

Contact me if you want some pre-done.

dave

[VictoriaGuy]

Originally Posted by planet10

John (aka VictoriaGuy) built his with a set of 7" Easttech on the front.

It wasn't my idea...as I recall....perhaps I mis-interpreted the plans/suggestions....
Anyway, they sound OK.....

John

[planet10]

John,

I probably said you could put them on any side....

dave