Massive Audio TKO104

10″ subwoofer · dual 4 Ω · 300 W RMS

Fs 39.2 HzQts 0.51Vas 0.95 ft³Xmax 0.28″

Recommended box

For a sedan, one sub, 300 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

Net volume0.67 ft³ (19 L)
Qtc0.80
Fc61 Hz
F3 (−3 dB, no cabin gain)58 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 12 5/16″
Open sealed box in designer

Ported

Net volume1.91 ft³ (54 L)
Tuning (Fb)34 Hz
Portslot 1 9/16 × 14 5/16″, 23 7/16″ long
Port velocity at 300 W59 ft/s
F3 (−3 dB, no cabin gain)31 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs39.2 Hz
Qts0.51
Qes0.57
Qms5.06
Vas0.95 ft³
Re (one coil)3.2 Ω
Sd49.6 in²
Xmax0.28″
Vd13.7 in³ calc.
Mms89 g calc.
BL11.1 T·m calc.
EBP69 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.5 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power300 W

Mounting dimensions

Ø10 3/16″cutout Ø9 1/8″mounting depth 5 3/8″magnet Ø≈ 5 15/16″
Cutout diameter9 1/8″
Mounting depth5 3/8″
Overall diameter10 3/16″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

Other Massive Audio 10″ models