Tang Band W4-1879

Full-range

Nominal diameter4″ / 102 mm
Resonance55 Hz
Q factor0.43
Sensitivity87.6 dB
Linear excursion± 5 mm
Program Power50 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 55 - 20000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 55Hz
  • Mechanical quality factor QMS 2.68
  • Electrical quality factor QES 0.51
  • Total quality factor QTS 0.43

Large signal parameters

  • Maximum linear excursion (one way) xmax 5mm
  • Air volume displaced at xmax VD 29cm³
  • Power handling P 25W
  • Program power Pmax 50W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.3Ω
  • Inductance (1kHz) LE 0.025mH
  • VC Diameter 25.4mm

Magnet

  • Force factor Bl 4.19N/A
  • Motor constant Bl/√RE 1.67N/√W
  • Air gap height HAG 15mm
  • Material Neodymium

Diaphragm

  • Effective diameter 85mm
  • Effective area SD 57cm²
  • Moving mass MMS 4g
  • Moving mass (without air load) MMD 3.7g
  • Material Paper

Suspensions

  • Stiffness KMS 0.506N/mm
  • Compliance CMS 1977µm/N
  • Equivalent volume to the compliance VAS 9.12L
  • Mechanical resistance RMS 0.52N·s/m
  • Surround material Foam Rubber

Dimensions

  • Nominal diameter 4
  • 102mm
  • Volume occupied by the driver (estimated) 0.72L
  • Net weight 1.753kg
Tang Band W4-1879 SPL & Impedance
Tang Band W4-1879 Dimensions

Similar speaker drivers to Tang Band W4-1879

ETON 4-308 Woofer

ETON 4-308

8 Ω
5Woofer
fS55 Hz
SD50 cm²
70 - 20000 Hz
QTS0.39
xmax8.2 mm
SPL1W86.3 dB
Bl/√RE1.8
Pmax100 W
Tang Band W4-1052SD Full-range

Tang Band W4-1052SD

4 Ω
4Full-range
fS70 Hz
SD57 cm²
70 - 17000 Hz
QTS0.44
xmax3.4 mm
SPL1W88.1 dB
Bl/√RE1.76
Pmax40 W
MONACOR SPP-110/4 Mid-range

MONACOR SPP-110/4

4 Ω
4Mid-range
fS53 Hz
SD55 cm²
53 - 8000 Hz
QTS0.37
xmax2 mm
SPL1W86.4 dB
Bl/√RE1.82
Pmax60 W