Visaton T 130 4 OHM
Best box: 2.6 L bass reflex tuned to 91.8 Hz · F3 98.1 Hz
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Comparable 4.5" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Visaton T 130 4 OHM 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 (2.6 L at 68.0 Hz) would need a 85.7 cm port; the recommendation is retuned to 2.6 L at 91.8 Hz so the port can be built.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 2.6 Liters |
| Tuning Frequency (Fb) | 91.8 Hz |
| F3 (-3 dB Cutoff) | 98.1 Hz |
| F6 / F10 Extension | 84.8 Hz / 72.1 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 44.8 cm |
| First Pipe Resonance | 384.0 Hz |
| Estimated MOL @ F3 | 103.0 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.85 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.202; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 3.3 Liters |
| System Q (Qtc) | 1.202 (above Butterworth: Qtc cannot fall below Qts (0.85)) |
| System Resonance (Fc) | 113.1 Hz |
| F3 (-3 dB Cutoff) | 113.2 Hz |
| F6 / F10 Extension | 85.8 Hz / 64.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 80.0 Hz |
| Total Q (Qts) | 0.85 |
| Electrical Q (Qes) | 1.174 |
| Mechanical Q (Qms) | 3.08 |
| Equivalent Volume (Vas) | 3.3 Liters |
| Diaphragm Area (Sd) | 69.0 cm² |
| DC Resistance (Re) | 3.5 Ω |
| Efficiency Bandwidth Product (EBP) | 68.1 |
| Linear Excursion (Xmax) | 12.0 mm |
| Thermal Power (Pe) | 50.0 W |
| Nominal Diameter | 4.5" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Visaton T 130 4 OHM?
Load Forge's calculated alignment puts Visaton T 130 4 OHM in a 2.6 liter vented enclosure tuned to 91.8 Hz, reaching an F3 cutoff of approximately 98.1 Hz.
Can Visaton T 130 4 OHM be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 3.3 liters with a Qtc of 1.202 (above Butterworth: Qtc cannot fall below Qts (0.85)), the system exhibits an F3 of 113.2 Hz.
What port dimensions should be used for Visaton T 130 4 OHM to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 44.8 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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