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After finding myself completely disgusted with my new bedroom tv's "speakers" I set out to find something I could build that would have high WAF. This meant small, really small and wall mounted. After going back and forth on the Overnight Sensations in a customized enclosure and the Helium's, I finally went with the Helium's due to their smaller size and since I could save time with the Parts Express flat pack. The Heliums are designed by Scott Sehlin and posted in the parts express speaker gallery here and on the Midwest Audio Club Website here. I bought all the parts from PE for these and they came in around $125 for the pair (this includes the enclosure flat pack!).
I'll be documenting my build (ok - glue and cut 8 holes...) as I go in hopes this will help some one. This will be my first set of speakers outside of my subs.
Here is the BOM:
300-7060 PARTS EXPRESS KNOCK-DOWN MDF 0.04 CU. FT. MICRO BOOKSHELF
015-3939 OHM 5W RESISTOR WIRE WOUND 5% TOLERANCE
027-414 DAYTON AUDIO DMPC-2.0 2.0UF 250V POLYPROPYLENE CAPACITOR
004-2 DAYTON AUDIO DNR-2.0 2 OHM 10W PRECISION AUDIO GRADE RESISTO
016-15 15 OHM 10W RESISTOR WIRE WOUND 5% TOLERANCE
027-421 DAYTON AUDIO DMPC-4.0 4.0UF 250V POLYPROPYLENE CAPACITOR
255-024 JANTZEN AUDIO 0.20MH 20 AWG AIR CORE INDUCTOR CROSSOVER COIL
260-294 ROUND SPEAKER WIRE TERMINAL CUP SPRING TYPE
269-303 FERRITE CORE CROSSOVER INDUCTOR 2.5MH 21 AWG 125 WATT
IMPORTANT: This is a clearance item because i'm cheap. When you knock out the Ferrite core, this becomes a 1mh inductor as is required by Scotts design.
275-025 DAYTON AUDIO ND16FA-6 5/8" NEODYMIUM DOME TWEETER
290-224 DAYTON AUDIO ND91-4 3-1/2" ALUMINUM CONE FULL-RANGE DRIVER
I'll be documenting my build (ok - glue and cut 8 holes...) as I go in hopes this will help some one. This will be my first set of speakers outside of my subs.
Here is the BOM:

300-7060 PARTS EXPRESS KNOCK-DOWN MDF 0.04 CU. FT. MICRO BOOKSHELF
015-3939 OHM 5W RESISTOR WIRE WOUND 5% TOLERANCE
027-414 DAYTON AUDIO DMPC-2.0 2.0UF 250V POLYPROPYLENE CAPACITOR
004-2 DAYTON AUDIO DNR-2.0 2 OHM 10W PRECISION AUDIO GRADE RESISTO
016-15 15 OHM 10W RESISTOR WIRE WOUND 5% TOLERANCE
027-421 DAYTON AUDIO DMPC-4.0 4.0UF 250V POLYPROPYLENE CAPACITOR
255-024 JANTZEN AUDIO 0.20MH 20 AWG AIR CORE INDUCTOR CROSSOVER COIL
260-294 ROUND SPEAKER WIRE TERMINAL CUP SPRING TYPE
269-303 FERRITE CORE CROSSOVER INDUCTOR 2.5MH 21 AWG 125 WATT
IMPORTANT: This is a clearance item because i'm cheap. When you knock out the Ferrite core, this becomes a 1mh inductor as is required by Scotts design.
275-025 DAYTON AUDIO ND16FA-6 5/8" NEODYMIUM DOME TWEETER
290-224 DAYTON AUDIO ND91-4 3-1/2" ALUMINUM CONE FULL-RANGE DRIVER
