Micro-Precision 5.8+Widerange
Best box: 1.5 L bass reflex tuned to 106.2 Hz · F3 125.7 Hz
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Comparable 3.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Micro-Precision 5.8+Widerange 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
- Xmax is not published, so the port size is an empirical estimate (area ≥ 12 in² per ft³ of net volume, minimum by driver size), not a displacement calculation. Check air velocity in Load Forge Studio.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 1.5 Liters |
| Tuning Frequency (Fb) | 106.2 Hz |
| F3 (-3 dB Cutoff) | 125.7 Hz |
| F6 / F10 Extension | 99.4 Hz / 80.1 Hz |
| Port Inner Diameter ESTIMATED | Ø 5.0 cm |
| Port Physical Length | 31.2 cm |
| First Pipe Resonance | 551.0 Hz |
| Estimated MOL @ F3 | 101.0 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.83 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.174; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 0.98 Liters |
| System Q (Qtc) | 1.174 (above Butterworth: Qtc cannot fall below Qts (0.83)) |
| System Resonance (Fc) | 176.8 Hz |
| F3 (-3 dB Cutoff) | 148.6 Hz |
| F6 / F10 Extension | 125.3 Hz / 102.1 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 125.0 Hz |
| Total Q (Qts) | 0.83 |
| Electrical Q (Qes) | 0.966 |
| Mechanical Q (Qms) | 5.9 |
| Equivalent Volume (Vas) | 1.0 Liters |
| Diaphragm Area (Sd) | 30.6 cm² |
| DC Resistance (Re) | 6.6 Ω |
| Efficiency Bandwidth Product (EBP) | 129.4 |
| Linear Excursion (Xmax) | N/A mm |
| Thermal Power (Pe) | 30.0 W |
| Nominal Diameter | 3.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Micro-Precision 5.8+Widerange?
Load Forge's calculated alignment puts Micro-Precision 5.8+Widerange in a 1.5 liter vented enclosure tuned to 106.2 Hz, reaching an F3 cutoff of approximately 125.7 Hz.
Can Micro-Precision 5.8+Widerange be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.98 liters with a Qtc of 1.174 (above Butterworth: Qtc cannot fall below Qts (0.83)), the system exhibits an F3 of 148.6 Hz.
What port dimensions should be used for Micro-Precision 5.8+Widerange to avoid port chuffing?
Xmax is not published for Micro-Precision 5.8+Widerange, so the port is an empirical estimate: a 5.0 cm diameter with a length of 31.2 cm (area at least 12 in² per ft³ of net volume). Check the air velocity at your power level in Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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