Phoenix Gold ZMAX82 (DVC 2 ohm)

8″ subwoofer · dual 2 Ω · 500 W RMS

Fs 49.7 HzQts 0.55Vas 0.13 ft³Xmax 0.57″

Recommended box

For a sedan, one sub, 500 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 volume0.28 ft³ (8 L)
Qtc0.67
Fc60 Hz
F3 (−3 dB, no cabin gain)66 Hz
Example box (outside)10 5/8″ × 10 5/8″ × 7 7/8″
Open sealed box in designer

Ported

Net volume0.60 ft³ (17 L)
Tuning (Fb)40 Hz
Portround port Ø2 1/2″, 12 1/16″ long
Port velocity at 500 W230 ft/s
F3 (−3 dB, no cabin gain)35 Hz
Example box (outside)14 7/16″ × 15 3/4″ × 7 11/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs49.7 Hz
Qts0.55
Qes0.585
Qms9.19
Vas0.13 ft³
Re (one coil)2 Ω
Sd31.9 in²
Xmax0.57″
Vd18.2 in³ calc.
Mms162 g calc.
BL13.1 T·m calc.
EBP85 — sealed or ported calc.
Sensitivity, 1 W / 1 m81 dB calc.

General

Size8″
Voice coilsdual 2 Ω
RMS power500 W

Mounting dimensions

Ø8 5/8″cutout Ø7 5/16″mounting depth 5 3/16″magnet Ø≈ 4 3/4″
Cutout diameter7 5/16″
Mounting depth5 3/16″
Overall diameter8 5/8″

“≈” 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 Phoenix Gold 8″ models