MARTELLO Fountek 3" FR88EX Build

This album documents my first full range speaker build using the Fountek 3" FR88EX. Thanks to AC member "Teflon" for sharing his plans with me.

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

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