REDCATT 18XR

Subwoofer

Nominal diameter18″ / 468 mm
Resonance21 Hz
Q factor0.35
Sensitivity90.8 dB
Linear excursion± 26 mm
Program Power2400 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 90.8dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 21Hz
  • Mechanical quality factor QMS 17.00
  • Electrical quality factor QES 0.36
  • Total quality factor QTS 0.35

Large signal parameters

  • Maximum linear excursion (one way) xmax 26mm
  • Air volume displaced at xmax VD 3267cm³
  • Power handling P 1200W
  • Program power Pmax 2400W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.3Ω
  • Inductance (1kHz) LE 0.54mH
  • VC Diameter 101.6mm
  • Winding height HVC 22mm
  • Winding material Copper
  • Former material kapton

Magnet

  • Force factor Bl 22.2N/A
  • Motor constant Bl/√RE 12.2N/√W
  • Air gap height HAG 56mm
  • Material Neodymium

Diaphragm

  • Effective diameter 400mm
  • Effective area SD 1257cm²
  • Moving mass MMS 402g
  • Moving mass (without air load) MMD 371g
  • Material Paper

Suspensions

  • Stiffness KMS 7.09N/mm
  • Compliance CMS 141µm/N
  • Equivalent volume to the compliance VAS 300L
  • Mechanical resistance RMS 3.12N·s/m
  • Surround material Rubber
  • Spider material Nomex

Dimensions

  • Nominal diameter 18
  • 468mm
  • Overall diameter 468mm
  • Baffle cutout diameter 422mm
  • Mounting depth 257mm
  • Volume occupied by the driver (estimated) 6.8L
  • Net weight 14.7kg
REDCATT 18XR SPL & Impedance
REDCATT 18XR Dimensions

Similar subwoofers to REDCATT 18XR

Dayton Audio SS18-22 Subwoofer

Dayton Audio SS18-22

2 x 2 Ω
18Subwoofer
fS21 Hz
SD1188 cm²
20 - 400 Hz
QTS0.37
xmax26 mm
SPL1W88.7 dB
Bl/√RE12.6
Pmax2600 W
Dayton Audio RSS460HO-4 Subwoofer

Dayton Audio RSS460HO-4

4 Ω
18Subwoofer
fS18.8 Hz
SD1164 cm²
20 - 500 Hz
QTS0.32
xmax12.8 mm
SPL1W88.9 dB
Bl/√RE13.1
Pmax1800 W
Eighteen Sound 18NLS4000 Subwoofer

Eighteen Sound 18NLS4000

4 Ω
18Subwoofer
fS27 Hz
SD1225 cm²
28 - 500 Hz
QTS0.35
xmax22.3 mm
SPL1W91.4 dB
Bl/√RE14.2
Pmax2400 W