Jensen C 10/50 SB
Best box: 19.7 L bass reflex tuned to 79.9 Hz · F3 114.3 Hz
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Comparable 10.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Jensen C 10/50 SB 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
- Xmax is not published, so the port size is an empirical estimate (area ≥ 12 in² per ft³ of net volume, minimum by driver size), not a displacement calculation. Check air velocity in Load Forge Studio.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 19.7 Liters |
| Tuning Frequency (Fb) | 79.9 Hz |
| F3 (-3 dB Cutoff) | 114.3 Hz |
| F6 / F10 Extension | 97.6 Hz / 77.1 Hz |
| Port Inner Diameter ESTIMATED | Ø 10.0 cm |
| Port Physical Length | 11.6 cm |
| First Pipe Resonance | 1487.0 Hz |
| Estimated MOL @ F3 | 113.4 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.9 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.273; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 24.6 Liters |
| System Q (Qtc) | 1.273 (above Butterworth: Qtc cannot fall below Qts (0.90)) |
| System Resonance (Fc) | 132.9 Hz |
| F3 (-3 dB Cutoff) | 103.5 Hz |
| F6 / F10 Extension | 87.8 Hz / 72.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 94.0 Hz |
| Total Q (Qts) | 0.9 |
| Electrical Q (Qes) | 0.974 |
| Mechanical Q (Qms) | 11.88 |
| Equivalent Volume (Vas) | 24.6 Liters |
| Diaphragm Area (Sd) | 330.1 cm² |
| DC Resistance (Re) | 6.0 Ω |
| Efficiency Bandwidth Product (EBP) | 96.5 |
| Linear Excursion (Xmax) | N/A mm |
| Thermal Power (Pe) | 50.0 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 Jensen C 10/50 SB?
Load Forge's calculated alignment puts Jensen C 10/50 SB in a 19.7 liter vented enclosure tuned to 79.9 Hz, reaching an F3 cutoff of approximately 114.3 Hz.
Can Jensen C 10/50 SB be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 24.6 liters with a Qtc of 1.273 (above Butterworth: Qtc cannot fall below Qts (0.90)), the system exhibits an F3 of 103.5 Hz.
What port dimensions should be used for Jensen C 10/50 SB to avoid port chuffing?
Xmax is not published for Jensen C 10/50 SB, so the port is an empirical estimate: a 10.0 cm diameter with a length of 11.6 cm (area at least 12 in² per ft³ of net volume). Check the air velocity at your power level in Load Forge Studio.
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