Rockford Fosgate T1S1-10P
Best box: 13.1 L sealed · Fc 59.4 Hz · F3 49.6 Hz
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Comparable 10.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Rockford Fosgate T1S1-10P does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
⚠️ Engineering Notice for Builders
- Straight vent would be 168.8 cm long: not physically buildable as a simple tube. Use a passive radiator, a folded slot port or model a 3D folded duct in Load Forge Studio.
Textbook Bass Reflex — not recommended
PORT NOT BUILDABLE| Net Box Volume (Vb) | 10.5 Liters |
| Tuning Frequency (Fb) | 35.7 Hz |
| F3 (-3 dB Cutoff) | 54.7 Hz |
| F6 / F10 Extension | 46.9 Hz / 37.3 Hz |
| Port Inner Diameter | Ø 10.0 cm |
| Port Physical Length | 168.8 cm |
| First Pipe Resonance | 102.0 Hz |
| Estimated MOL @ F3 | 110.7 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.95 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.344; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 13.1 Liters |
| System Q (Qtc) | 1.344 (above Butterworth: Qtc cannot fall below Qts (0.95)) |
| System Resonance (Fc) | 59.4 Hz |
| F3 (-3 dB Cutoff) | 49.6 Hz |
| F6 / F10 Extension | 42.3 Hz / 34.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 42.0 Hz |
| Total Q (Qts) | 0.95 |
| Electrical Q (Qes) | 1.056 |
| Mechanical Q (Qms) | 9.43 |
| Equivalent Volume (Vas) | 13.1 Liters |
| Diaphragm Area (Sd) | 356.0 cm² |
| DC Resistance (Re) | 0.9 Ω |
| Efficiency Bandwidth Product (EBP) | 39.8 |
| Linear Excursion (Xmax) | 15.0 mm |
| Thermal Power (Pe) | 500.0 W |
| Nominal Diameter | 10.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Rockford Fosgate T1S1-10P?
A simple ported box is not recommended for Rockford Fosgate T1S1-10P: the textbook alignment (10.5 liters tuned to 35.7 Hz) needs a 168.8 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.
Can Rockford Fosgate T1S1-10P be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 13.1 liters with a Qtc of 1.344 (above Butterworth: Qtc cannot fall below Qts (0.95)), the system exhibits an F3 of 49.6 Hz.
What port dimensions should be used for Rockford Fosgate T1S1-10P to avoid port chuffing?
A straight 10.0 cm port would need 168.8 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.
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