Timpano TPT-T1500-12 D4
12″ subwoofer · dual 4 Ω · 1,600 W RMS
| Source | timpanoaudio.com · manufacturer data |
|---|---|
| Checked against source | October 2026 |
| Thiele/Small parameters | not in the spec sheet: Sd — typical value for the size used |
| Mounting dimensions | 0 of 4 — missing: cutout, mounting depth, frame outer diameter, magnet diameter; the designer will use an estimate |
Recommended box
For a sedan, one sub, 1,600 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
smaller, tighter| Bass character (Qtc) | Tight and punchy · 0.80 |
|---|---|
| Fc | 52 Hz |
| F3 (−3 dB, no cabin gain) | 48 Hz |
| Example box (outside) | 14 3/16″ × 14 3/16″ × 14 9/16″ |
Ported
deeper, louder| Tuning (Fb) | 34 Hz |
|---|---|
| Port | slot 1 9/16 × 14 5/16″, 39 9/16″ long |
| Port velocity at 1,600 W | 93 ft/s |
| F3 (−3 dB, no cabin gain) | 34 Hz |
| Example box (outside) | 31 1/2″ × 15 3/4″ × 9 1/2″ |
At 1,600 W this example’s port will be noisy: air speed 93 ft/s, while the limit is 82 ft/s. It stays quiet up to about 1,250 W. Full power needs a port of at least 25.5 in², which means a bigger box than this example — size it in the designer.
Open ported box in designerDeeper: 2.93 ft³ (83 L) tuned to 30 Hz, 31 1/2″ × 15 3/4″ × 21 7/8″ outside — a bigger box with flatter deep bass. Open in the calculator
Projects with this subwoofer
Boxes that users designed and published: plans, cut sheet and response graph.
Thiele/Small parameters
| Size | 12″ |
|---|---|
| Voice coils | dual 4 Ω |
| RMS power | 1,600 W |
| Fs | 37 Hz |
| Qts | 0.57 |
| Qes | 0.62 |
| Qms | 7.71 |
| Vas | 1.07 ft³ |
|---|---|
| Re (one coil) | 3.6 Ω |
| Sd | ≈ 76 in² |
| Xmax | 0.63″ |
| EBP | 60 — sealed or ported calc. |
| Sensitivity, 1 W / 1 m | 86 dB calc. |
Mounting dimensions
| Cutout diameter | ≈ 11 1/8″ |
|---|---|
| Mounting depth | ≈ 5 7/8″ |
“≈” 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 Timpano 12″ models
- Timpano TPT-T1000-12 D4 12″ · dual 4 Ω
- Timpano TPT-T2500-12 D4 12″ · dual 4 Ω
- Timpano TPT-T3500-12 D2 12″ · dual 2 Ω
- Timpano TPT-TSUB12 D4 12″ · dual 4 Ω
Similar 12″ subwoofers from other brands
Close in Fs, Qts and Vas — a box of similar volume will suit them.
- DC Audio Level 3 M3 12 D1 1.09 ft³ sealed · 1.02 ft³ ported
- DC Audio Level 3 M3 12 D2 1.09 ft³ sealed · 1.02 ft³ ported
- DC Audio Level 3 M3 12 D4 1.09 ft³ sealed · 1.02 ft³ ported
- MTX Audio T9512-04 1.09 ft³ sealed · 1.31 ft³ ported
- Machete M12 Super Sport D1 1.17 ft³ sealed · 1.20 ft³ ported
- JL Audio 12TW1-2 1.09 ft³ sealed · 1.13 ft³ ported
FAQ
What box does the Timpano TPT-T1500-12 D4 need?
Recommended net volume: 1.13 ft³ sealed, 1.20 ft³ ported tuned to 34 Hz — for one sub in a sedan at 1,600 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.
What are the Timpano TPT-T1500-12 D4 Thiele/Small specs?
Fs 37 Hz, Qts 0.57, Vas 1.07 ft³, Xmax 0.63″.
How much power does the Timpano TPT-T1500-12 D4 handle and how do I wire it?
RMS power rating: 1,600 W. Dual 4 Ω voice coils: series gives 8 Ω, parallel gives 2 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.