Dayton Audio DMA58-8 2" Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm
Best box: 0.19 L sealed · Fc 216.1 Hz · F3 221.2 Hz
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Comparable 2.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Dayton Audio DMA58-8 2" Dual Magnet Aluminum Cone Full-Range Driver 8 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
- Limited linear excursion (Xmax: 2.0 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.
Textbook Bass Reflex — not recommended (4.4 dB bass hump)
PORT BUILDABLE| Net Box Volume (Vb) | 1.5 Liters |
| Tuning Frequency (Fb) | 121.5 Hz |
| F3 (-3 dB Cutoff) | 112.8 Hz |
| F6 / F10 Extension | 107.7 Hz / 101.1 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 23.0 cm |
| First Pipe Resonance | 748.0 Hz |
| Estimated MOL @ F3 | 95.9 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 0.19 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 216.1 Hz |
| F3 (-3 dB Cutoff) | 221.2 Hz |
| F6 / F10 Extension | 166.3 Hz / 125.2 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 166.2 Hz |
| Total Q (Qts) | 0.54 |
| Electrical Q (Qes) | 0.693 |
| Mechanical Q (Qms) | 2.45 |
| Equivalent Volume (Vas) | 0.1 Liters |
| Diaphragm Area (Sd) | 14.5 cm² |
| DC Resistance (Re) | 6.9 Ω |
| Efficiency Bandwidth Product (EBP) | 239.9 |
| Linear Excursion (Xmax) | 2.0 mm |
| Thermal Power (Pe) | 15.0 W |
| Nominal Diameter | 2.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Dayton Audio DMA58-8 2" Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm?
A simple ported box is not recommended for Dayton Audio DMA58-8 2" Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm: the textbook alignment (1.5 liters tuned to 121.5 Hz) needs a 23.0 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 Dayton Audio DMA58-8 2" Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.19 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 221.2 Hz.
What port dimensions should be used for Dayton Audio DMA58-8 2" Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm to avoid port chuffing?
A straight 5.0 cm port would need 23.0 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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