Peerless NSM-0820R00-04

Woofer

Nominal diameter8″ / 203 mm
Resonance77 Hz
Q factor0.18
Sensitivity96.5 dB
Linear excursion± 6.6 mm
Program Power500 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 96.5dB
  • Frequency response 60 - 6000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 77Hz
  • Mechanical quality factor QMS 5.32
  • Electrical quality factor QES 0.19
  • Total quality factor QTS 0.18

Large signal parameters

  • Maximum linear excursion xmax 6.6mm
  • Air volume displaced at xmax VD 150cm³
  • Power handling P 250W
  • Program power Pmax 500W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 2.5Ω
  • Inductance (1kHz) LE 0.12mH
  • VC Diameter 50.5mm

Magnet

  • Force factor Bl 13.7N/A
  • Motor constant Bl/√RE 8.66N/√W
  • Air gap height HAG 9mm
  • Material Neodymium

Diaphragm

  • Effective diameter 170mm
  • Effective area SD 227cm²
  • Moving mass MMS 28.3g
  • Moving mass (without air load) MMD 25.9g

Suspensions

  • Stiffness KMS 6.67N/mm
  • Compliance CMS 150µm/N
  • Equivalent volume to the compliance VAS 11L
  • Mechanical resistance RMS 2.57N·s/m

Dimensions

  • Nominal diameter 8
  • 203mm
  • Volume occupied by the driver (estimated) 0.5L
  • Net weight 1.25kg
Peerless NSM-0820R00-04 SPL & Impedance
Peerless NSM-0820R00-04 Dimensions

Similar woofers to Peerless NSM-0820R00-04

B&C Speaker 8NW51 Woofer

B&C Speaker 8NW51

8 Ω
8Woofer
fS74 Hz
SD220 cm²
70 - 3000 Hz
QTS0.17
xmax6 mm
SPL1W95.5 dB
Bl/√RE8.29
Pmax400 W
Oberton 8NMB250VCX Coaxial

Oberton 8NMB250VCX

8 Ω
8Coaxial
fS85.2 Hz
SD202 cm²
85 - 20000 Hz
QTS0.16
xmax4.3 mm
SPL1W99 dB
Bl/√RE7.64
Pmax500 W
Celestion NTR08-2009D Low frequency

Celestion NTR08-2009D

8 Ω
8Low frequency
fS71.4 Hz
SD227 cm²
70 - 5000 Hz
QTS0.21
xmax6.5 mm
SPL1W94.1 dB
Bl/√RE7.69
Pmax400 W