- Nominal diameter
- 2.5″ / 60 mm
- Resonance
- 117 Hz
- Q factor
- 0.55
- Sensitivity
- 81 dB
- Linear excursion
- ± 4.35 mm
- Program Power
- 12 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
- Sensitivity (1W, 1m, infinite baffle) SPL1W 81dB
- Frequency response 200 - 20000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 117Hz
- Mechanical quality factor QMS 3.20
- Electrical quality factor QES 0.66
- Total quality factor QTS 0.55
Large signal parameters
- Maximum linear excursion xmax 4.4mm
- Maximum excursion before damage xlim 4.7mm
- Air volume displaced at xmax VD 7.6cm³
- Power handling P 10W
- Program power Pmax 12W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.9Ω
- Inductance (1kHz) LE 0.13mH
- VC Diameter 19.6mm
- Winding height HVC 9mm
Magnet
- Flux density B 0.691T
- Force factor Bl 3.2N/A
- Motor constant Bl/√RE 1.62N/√W
- Air gap height HAG 3mm
- Diameter 27mm
- Weight 0.023kg
Diaphragm
- Effective diameter 47mm
- Effective area SD 17.4cm²
- Moving mass MMS 2.39g
- Moving mass (without air load) MMD 2.3g
Suspensions
- Stiffness KMS 1.28N/mm
- Compliance CMS 780µm/N
- Equivalent volume to the compliance VAS 0.33L
- Mechanical resistance RMS 0.55N·s/m
Dimensions
- Nominal diameter 2.5″
- 60mm
- Overall diameter 56mm
- Baffle cutout diameter 52mm
- Mounting depth 35mm
- Net weight 0.087kg
Similar speaker drivers to SEAS OR004-04 FL6RBND/S
Fountek FR58EX8 Ω |
---|
2.5″ Full-range |
fS | 134 Hz |
SD | 17 cm² |
130 - 20000 Hz |
QTS | 0.55 |
xmax | 2.9 mm |
SPL1W | 82 dB |
Bl/√RE | 1.54 |
Pmax | 30 W |
Wavecor FR055WA034 Ω |
---|
2″ Full-range |
fS | 128 Hz |
SD | 16 cm² |
128 - 20000 Hz |
QTS | 0.51 |
xmax | 1.4 mm |
SPL1W | 83 dB |
Bl/√RE | 1.53 |
Pmax | 20 W |
SEAS OR002-04 FA6RBND/S4 Ω |
---|
2.5″ Full-range |
fS | 109 Hz |
SD | 17 cm² |
200 - 20000 Hz |
QTS | 0.51 |
xmax | 4.3 mm |
SPL1W | 82 dB |
Bl/√RE | 1.46 |
Pmax | 12 W |