Visaton W 170 4 OHM
Best box: 13.8 L bass reflex tuned to 57.8 Hz · F3 82.7 Hz
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Comparable 6.5" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Visaton W 170 4 OHM does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 13.8 Liters |
| Tuning Frequency (Fb) | 57.8 Hz |
| F3 (-3 dB Cutoff) | 82.7 Hz |
| F6 / F10 Extension | 69.2 Hz / 53.7 Hz |
| Port Inner Diameter | Ø 7.5 cm |
| Port Physical Length | 23.4 cm |
| First Pipe Resonance | 736.0 Hz |
| Estimated MOL @ F3 | 105.8 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.76 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.075; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 17.3 Liters |
| System Q (Qtc) | 1.075 (above Butterworth: Qtc cannot fall below Qts (0.76)) |
| System Resonance (Fc) | 96.2 Hz |
| F3 (-3 dB Cutoff) | 78.1 Hz |
| F6 / F10 Extension | 65.0 Hz / 52.5 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 68.0 Hz |
| Total Q (Qts) | 0.76 |
| Electrical Q (Qes) | 0.948 |
| Mechanical Q (Qms) | 3.84 |
| Equivalent Volume (Vas) | 17.3 Liters |
| Diaphragm Area (Sd) | 137.0 cm² |
| DC Resistance (Re) | 3.7 Ω |
| Efficiency Bandwidth Product (EBP) | 71.8 |
| Linear Excursion (Xmax) | 15.0 mm |
| Thermal Power (Pe) | 40.0 W |
| Nominal Diameter | 6.5" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Visaton W 170 4 OHM?
Load Forge's calculated alignment puts Visaton W 170 4 OHM in a 13.8 liter vented enclosure tuned to 57.8 Hz, reaching an F3 cutoff of approximately 82.7 Hz.
Can Visaton W 170 4 OHM be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 17.3 liters with a Qtc of 1.075 (above Butterworth: Qtc cannot fall below Qts (0.76)), the system exhibits an F3 of 78.1 Hz.
What port dimensions should be used for Visaton W 170 4 OHM to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 7.5 cm with a length of 23.4 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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