Dayton Audio DMA70-8
4Ω
8Ω
Full-range
| Nominal diameter | 2.5″ / 64 mm |
| Resonance | 114 Hz |
| Q factor | 0.50 |
| Sensitivity | 83 dB |
| Linear excursion | ± 2 mm |
| Program Power | 40 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 83dB
- Frequency response 110 - 20000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 114Hz
- Mechanical quality factor QMS 2.06
- Electrical quality factor QES 0.73
- Total quality factor QTS 0.50
Large signal parameters
- Maximum linear excursion (one way) xmax 2mm
- Air volume displaced at xmax VD 4.6cm³
- Power handling P 20W
- Program power Pmax 40W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 7.5Ω
- Inductance (1kHz) LE 0.5mH
- VC Diameter 25.4mm
Magnet
- Force factor Bl 4.7N/A
- Motor constant Bl/√RE 1.72N/√W
Diaphragm
- Effective diameter 54mm
- Effective area SD 22.9cm²
- Moving mass MMS 2.6g
- Moving mass (without air load) MMD 2.5g
Suspensions
- Stiffness KMS 1.37N/mm
- Compliance CMS 730µm/N
- Equivalent volume to the compliance VAS 0.566L
- Mechanical resistance RMS 0.9N·s/m
Dimensions
- Nominal diameter 2.5″
- 64mm
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