DL Audio Gryphon Pro 15 V.3 SE (2+2)

15″ subwoofer · dual 2 Ω · 600 W RMS

Fs 24.1 HzQts 0.74Vas 2.64 ft³

Recommended box

For a sedan, one sub, 600 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 volume2.83 ft³ (80 L)
Qtc1.03
Fc34 Hz
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 11 3/4″
Open sealed box in designer

Ported

Net volume4.80 ft³ (136 L)
Tuning (Fb)25 Hz
Portslot 2 3/16 × 16 11/16″, 27 1/4″ long
Port velocity at 600 W64 ft/s
F3 (−3 dB, no cabin gain)21 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 21″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs24.1 Hz
Qts0.74
Qes0.844
Qms6
Vas2.64 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 124 in²
Xmax≈ 0.39″
EBP29 — suits sealed calc.
Sensitivity, 1 W / 1 m82.9 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power600 W

Mounting dimensions

Ø15 1/2″cutout Ø14″mounting depth 8 1/16″magnet Ø≈ 9 1/8″
Cutout diameter14″
Mounting depth8 1/16″
Overall diameter15 1/2″

Only Qts is published — Qms assumed to be 6 and Qes calculated (barely affects box design).

“≈” 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 DL Audio 15″ models