Hinor 12 CITY
Best box: 105.7 L sealed · Fc 46.6 Hz · F3 37.9 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Hinor 12 CITY 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
- Limited linear excursion (Xmax: 3.5 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.
Textbook Bass Reflex — not recommended (4.8 dB bass hump)
PORT BUILDABLE| Net Box Volume (Vb) | 84.6 Liters |
| Tuning Frequency (Fb) | 28.0 Hz |
| F3 (-3 dB Cutoff) | 42.6 Hz |
| F6 / F10 Extension | 36.9 Hz / 29.7 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 5.3 cm |
| First Pipe Resonance | 3246.0 Hz |
| Estimated MOL @ F3 | 106.6 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 1.04 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.471; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 105.7 Liters |
| System Q (Qtc) | 1.471 (above Butterworth: Qtc cannot fall below Qts (1.04)) |
| System Resonance (Fc) | 46.6 Hz |
| F3 (-3 dB Cutoff) | 37.9 Hz |
| F6 / F10 Extension | 32.7 Hz / 27.1 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 33.0 Hz |
| Total Q (Qts) | 1.04 |
| Electrical Q (Qes) | 1.481 |
| Mechanical Q (Qms) | 3.49 |
| Equivalent Volume (Vas) | 105.7 Liters |
| Diaphragm Area (Sd) | 523.0 cm² |
| DC Resistance (Re) | 3.4 Ω |
| Efficiency Bandwidth Product (EBP) | 22.3 |
| Linear Excursion (Xmax) | 3.5 mm |
| Thermal Power (Pe) | N/A W |
| Nominal Diameter | 12.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Hinor 12 CITY?
A simple ported box is not recommended for Hinor 12 CITY: the textbook alignment (84.6 liters tuned to 28.0 Hz) needs a 5.3 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 Hinor 12 CITY be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 105.7 liters with a Qtc of 1.471 (above Butterworth: Qtc cannot fall below Qts (1.04)), the system exhibits an F3 of 37.9 Hz.
What port dimensions should be used for Hinor 12 CITY to avoid port chuffing?
A straight 5.0 cm port would need 5.3 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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