Reiss audio Reiss RS-KJ12.D2 - 30cm Double Bobine 2+2 Ohms 2000W RMS
Best box: 32.2 L bass reflex tuned to 26.6 Hz · F3 32.4 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Reiss audio Reiss RS-KJ12.D2 - 30cm Double Bobine 2+2 Ohms 2000W RMS 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
- Port length (96.2 cm) exceeds a straight internal run; use an elbow bend, slotted vent or 3D folded duct to fit the enclosure.
Recommended Bass Reflex (Vented)
PORT NEEDS ELBOW / 3D| Net Box Volume (Vb) | 32.2 Liters |
| Tuning Frequency (Fb) | 26.6 Hz |
| F3 (-3 dB Cutoff) | 32.4 Hz |
| F6 / F10 Extension | 23.8 Hz / 20.3 Hz |
| Port Inner Diameter | Ø 10.0 cm |
| Port Physical Length | 96.2 cm |
| First Pipe Resonance | 179.0 Hz |
| Estimated MOL @ F3 | 114.7 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 33.0 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 47.1 Hz |
| F3 (-3 dB Cutoff) | 47.9 Hz |
| F6 / F10 Extension | 36.2 Hz / 27.4 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 37.0 Hz |
| Total Q (Qts) | 0.55 |
| Electrical Q (Qes) | 0.616 |
| Mechanical Q (Qms) | 5.1 |
| Equivalent Volume (Vas) | 21.5 Liters |
| Diaphragm Area (Sd) | 530.0 cm² |
| DC Resistance (Re) | 3.2 Ω |
| Efficiency Bandwidth Product (EBP) | 60.0 |
| Linear Excursion (Xmax) | 10.0 mm |
| Thermal Power (Pe) | 2000.0 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 Reiss audio Reiss RS-KJ12.D2 - 30cm Double Bobine 2+2 Ohms 2000W RMS?
Load Forge's calculated alignment puts Reiss audio Reiss RS-KJ12.D2 - 30cm Double Bobine 2+2 Ohms 2000W RMS in a 32.2 liter vented enclosure tuned to 26.6 Hz, reaching an F3 cutoff of approximately 32.4 Hz.
Can Reiss audio Reiss RS-KJ12.D2 - 30cm Double Bobine 2+2 Ohms 2000W RMS be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 33.0 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 47.9 Hz.
What port dimensions should be used for Reiss audio Reiss RS-KJ12.D2 - 30cm Double Bobine 2+2 Ohms 2000W RMS to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 10.0 cm with a length of 96.2 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
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