SEAS H1252-08 L22RNX/P

Subwoofer

Nominal diameter8″ / 220 mm
Resonance23 Hz
Q factor0.32
Sensitivity87.6 dB
Linear excursion± 6 mm
Program Power300 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
Discard
Apply

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 87.6dB
  • Frequency response 25 - 2000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 23Hz
  • Mechanical quality factor QMS 2.07
  • Electrical quality factor QES 0.38
  • Total quality factor QTS 0.32

Large signal parameters

  • Maximum linear excursion (one way) xmax 6mm
  • Maximum excursion before damage xlim 10.5mm
  • Air volume displaced at xmax VD 132cm³
  • Power handling P 110W
  • Program power Pmax 300W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.0Ω
  • Inductance (1kHz) LE 1.43mH
  • VC Diameter 39mm
  • Winding height HVC 18mm

Magnet

  • Flux density B 1T
  • Force factor Bl 8.15N/A
  • Motor constant Bl/√RE 3.33N/√W
  • Air gap height HAG 6mm
  • Weight 0.64kg

Diaphragm

  • Effective diameter 167mm
  • Effective area SD 220cm²
  • Moving mass MMS 27g
  • Moving mass (without air load) MMD 24.5g

Suspensions

  • Stiffness KMS 0.556N/mm
  • Compliance CMS 1800µm/N
  • Equivalent volume to the compliance VAS 112L
  • Mechanical resistance RMS 2.01N·s/m

Dimensions

  • Nominal diameter 8
  • 220mm
  • Volume occupied by the driver (estimated) 0.91L
  • Net weight 2.2kg
SEAS H1252-08 L22RNX/P SPL & Impedance
SEAS H1252-08 L22RNX/P Dimensions

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8 Ω
8Woofer
fS21 Hz
SD220 cm²
21 - 3000 Hz
QTS0.25
xmax9 mm
SPL1W88.1 dB
Bl/√RE3.98
Pmax200 W