SB Acoustics SB16PFCR25-4

Mid Bass

Nominal diameter6″ / 152 mm
Resonance35 Hz
Q factor0.34
Sensitivity87.1 dB
Linear excursion± 4.5 mm
Program Power80 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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 87.1dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 35Hz
  • Mechanical quality factor QMS 2.76
  • Electrical quality factor QES 0.39
  • Total quality factor QTS 0.34

Large signal parameters

  • Maximum linear excursion xmax 4.5mm
  • Air volume displaced at xmax VD 56cm³
  • Power handling P 40W
  • Program power Pmax 80W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.2Ω
  • Inductance (1kHz) LE 0.56mH
  • VC Diameter 25.4mm
  • Winding height HVC 14mm

Magnet

  • Flux density B 1.06T
  • Force factor Bl 5N/A
  • Motor constant Bl/√RE 2.8N/√W
  • Air gap height HAG 5mm
  • Weight 0.36kg

Diaphragm

  • Effective diameter 126mm
  • Effective area SD 124cm²
  • Moving mass MMS 13.8g
  • Moving mass (without air load) MMD 12.8g
  • Material Natural fibers (made in-house)

Suspensions

  • Stiffness KMS 0.667N/mm
  • Compliance CMS 1500µm/N
  • Equivalent volume to the compliance VAS 32.7L
  • Mechanical resistance RMS 1.1N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 6
  • 152mm
  • Volume occupied by the driver (estimated) 0.37L
  • Net weight 0.94kg
  • Frame material Reinforced plastic
SB Acoustics SB16PFCR25-4 SPL & Impedance
SB Acoustics SB16PFCR25-4 Dimensions

Similar speaker drivers to SB Acoustics SB16PFCR25-4

accuton C158-8-085 Mid Bass

accuton C158-8-085

8 Ω
6.25 Mid Bass
fS37 Hz
SD113 cm²
38 - 3000 Hz
QTS0.36
xmax5 mm
SPL1W87.2 dB
Bl/√RE2.71
Pmax200 W
Scan-Speak 18W/8545K00 Mid Bass

Scan-Speak 18W/8545K00

8 Ω
8 Mid Bass
fS28 Hz
SD145 cm²
28 - 3000 Hz
QTS0.28
xmax6.5 mm
SPL1W87 dB
Bl/√RE3.5
Pmax170 W
MONACOR SPH-135/AD Mid-range

MONACOR SPH-135/AD

8 Ω
5.5 Mid-range
fS39 Hz
SD95 cm²
39 - 6000 Hz
QTS0.37
xmax1.8 mm
SPL1W87.4 dB
Bl/√RE2.13
Pmax60 W