MTX Audio T5510-04
Best box: 24.4 L bass reflex tuned to 31.5 Hz · F3 42.8 Hz
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Comparable 11.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the MTX Audio T5510-04 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
- The textbook alignment (24.4 L at 30.0 Hz) would need a 100.1 cm port; the recommendation is retuned to 24.4 L at 31.5 Hz so the port can be built.
- Port length (90.1 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) | 24.4 Liters |
| Tuning Frequency (Fb) | 31.5 Hz |
| F3 (-3 dB Cutoff) | 42.8 Hz |
| F6 / F10 Extension | 35.2 Hz / 27.3 Hz |
| Port Inner Diameter | Ø 10.0 cm |
| Port Physical Length | 90.1 cm |
| First Pipe Resonance | 191.0 Hz |
| Estimated MOL @ F3 | 117.6 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.67 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.948; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 30.6 Liters |
| System Q (Qtc) | 0.948 (above Butterworth) |
| System Resonance (Fc) | 50.0 Hz |
| F3 (-3 dB Cutoff) | 43.0 Hz |
| F6 / F10 Extension | 35.0 Hz / 27.7 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 35.3 Hz |
| Total Q (Qts) | 0.67 |
| Electrical Q (Qes) | 0.805 |
| Mechanical Q (Qms) | 4.0 |
| Equivalent Volume (Vas) | 30.6 Liters |
| Diaphragm Area (Sd) | 387.9 cm² |
| DC Resistance (Re) | 3.28 Ω |
| Efficiency Bandwidth Product (EBP) | 43.9 |
| Linear Excursion (Xmax) | 13.5 mm |
| Thermal Power (Pe) | N/A W |
| Nominal Diameter | 11.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for MTX Audio T5510-04?
Load Forge's calculated alignment puts MTX Audio T5510-04 in a 24.4 liter vented enclosure tuned to 31.5 Hz, reaching an F3 cutoff of approximately 42.8 Hz.
Can MTX Audio T5510-04 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 30.6 liters with a Qtc of 0.948 (above Butterworth), the system exhibits an F3 of 43.0 Hz.
What port dimensions should be used for MTX Audio T5510-04 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 10.0 cm with a length of 90.1 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
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