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I'm Feeling lucky
Fountek 3" Full Range FR88EX
CNC'd flatpack
CNC'd parts
Front Baffle
Glue up
This is the internal brace. I went a little crazy on the holes, but I had fun.
Front view before the Baffles were attached.
Front and back
Martello speaker 8a
Fountek FR88EX 3" Full Range. Nominal Impedance 8 ohm DC Resistance (Re) 6.0 ohm Voice Coil Inductance (Le) 0.45 m H Effective Piston Area (Sd) 27.34 cm 2 Voice Coil Diameter 25 mm Voice Coil Height 4 mm Air Gap Height 10 mm Linear Coil Travel (p-p) 3 mm Net Weight 0.35 kg Free Air Resonance 95 Hz Sensitivity (2.83V/1m) 84.4 d B Mechanical Q-factor (Qms) 2.35 Electrical Q-factor (Qes) 0.72 Total Q-factor (Qts) 0.55 Moving Mass incl. air (Md) 2.26 g Force Factor (BL) 3.313 Tm Equivalent Volume (Vas) 1.29 l Compliance (Cms) 1.212 um/N Flux Density 0.88 T Rated Power Handling 15 W Rms Overall diameter 88.4 mm Cutout diameter 73 mm Flange thickness 4.3 mm Depth 38 mm
Martello Fountek FR88EX Speaker
Martello Fountek FR88EX Speaker front
Martello Fountek FR88EX Speaker back
Martello Fountek FR88EX speaker close
Martello Fountek FR88EX speaker breaking in on my desk.
Martello speaker 14a
Martello speaker 29a
Front baffle
Front baffle with magnets
making the grills
Back Panel
Martello speaker 21a
Martello speaker 22a
Martello speaker 23a
Martello speaker 24a
Martello speaker 25a
Martello speaker 26a
Martello speaker 27a
Martello speaker 28a
Martello speaker 30a
Martello speaker 31a