Stereo Integrity IB-24
Best box: 328.0 L sealed · Fc 40.2 Hz · F3 33.2 Hz
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Comparable 24.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Stereo Integrity IB-24 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 211.6 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.
- Large enclosure volume (262.4 L) requires extensive internal matrix bracing to prevent panel resonance.
Textbook Bass Reflex — not recommended
PORT NOT BUILDABLE| Net Box Volume (Vb) | 262.4 Liters |
| Tuning Frequency (Fb) | 24.1 Hz |
| F3 (-3 dB Cutoff) | 33.9 Hz |
| F6 / F10 Extension | 28.0 Hz / 21.5 Hz |
| Port Inner Diameter | Ø 39.4 cm |
| Port Physical Length | 211.6 cm |
| First Pipe Resonance | 81.0 Hz |
| Estimated MOL @ F3 | 121.3 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.7 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.99; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 328.0 Liters |
| System Q (Qtc) | 0.99 (above Butterworth) |
| System Resonance (Fc) | 40.2 Hz |
| F3 (-3 dB Cutoff) | 33.2 Hz |
| F6 / F10 Extension | 27.2 Hz / 21.7 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 28.4 Hz |
| Total Q (Qts) | 0.7 |
| Electrical Q (Qes) | 0.81 |
| Mechanical Q (Qms) | 5.14 |
| Equivalent Volume (Vas) | 328.0 Liters |
| Diaphragm Area (Sd) | 2129.4 cm² |
| DC Resistance (Re) | 5.8 Ω |
| Efficiency Bandwidth Product (EBP) | 35.0 |
| Linear Excursion (Xmax) | 65.0 mm |
| Thermal Power (Pe) | 1000.0 W |
| Nominal Diameter | 24.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Stereo Integrity IB-24?
A simple ported box is not recommended for Stereo Integrity IB-24: the textbook alignment (262.4 liters tuned to 24.1 Hz) needs a 211.6 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 Stereo Integrity IB-24 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 328.0 liters with a Qtc of 0.99 (above Butterworth), the system exhibits an F3 of 33.2 Hz.
What port dimensions should be used for Stereo Integrity IB-24 to avoid port chuffing?
A straight 39.4 cm port would need 211.6 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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