SB42FHCL75-6

15" Honeycomb Cone Subwoofer

Free. Just your email.

SB Acoustics photo of the SB42FHCL75-6 driver
Photo: SB Acoustics View on sbacoustics.com (opens the SB Acoustics website in a new tab)

Frequency response and impedance

40506070809010011010 Hz1001k10k20kdBohm0306090120

Level in dB (left axis) and impedance in ohm (right axis), 10 Hz to 20 kHz. The line on each switch above shows how its curve is drawn.

Features

  • Light weight rigid honeycomb cone (hard paper honeycomb with fiber glass skin layers)
  • 3″ copper voice coil for improved power handling
  • Long life silver lead wires
  • Vented pole piece for minimum compression
  • Vented cast aluminum chassis for optimum strength and low compression
  • Low damping rubber surround for improved dynamic linearity
  • Non-conducting fiber glass voice coil former for minimum damping
  • Large motor system

Features as listed by SB Acoustics. Full details on sbacoustics.com (opens the SB Acoustics website in a new tab)

SB Acoustics dimensional drawing of the SB42FHCL75-6
Dimensional drawing: SB Acoustics Datasheet (PDF) (opens the SB Acoustics website in a new tab)

Specifications

Nominal impedance
6 Ω
Voice coil inductance, Le
2.1 mH
Free air resonance, Fs
18.4 Hz
Total Q, Qts
0.31
Electrical Q, Qes
0.32
Mechanical Q, Qms
7.4
Equivalent volume, Vas
462 L
Effective piston area, Sd
850 cm²
Linear coil travel (p-p)
23 mm
Moving mass, Mms
166 g
Force factor, Bl
16.7 Tm
Compliance, Cms
0.45 mm/N
Mechanical loss, Rms
2.6 kg/s
Sensitivity (2.83 V / 1 m)
93 dB
Rated power handling
300 W

Read from the SB Acoustics datasheet. Check the current datasheet before you rely on a figure.

Design files

SB42FHCL75-6 FRD and ZMA files, in one zip:

  • Frequency responses at 0, 30 and 60 degrees (.frd)
  • Impedance (.zma)
  • A README and a note on how each curve was made

Plain text files for VituixCAD, XSim, REW and most other crossover tools.

Free. Just your email.

Order on WhatsApp

Almost there

Pop in your email and the files download straight away. We will also send you a copy of the link.

    Beta. These FRD and ZMA files are made by Artisan Acoustics from the curves printed in SB's datasheets. They are not measurements and not official SB Acoustics or SB Audience files. Use them at your own risk, and check the conditions printed on each datasheet.

    The marketing box is optional: you get the files either way. We never sell your details. Privacy & PDPA notice.

    SB42FHCL75-6 FAQ

    What are FRD and ZMA files?

    An FRD file holds a driver's frequency response and a ZMA file its impedance, the two curves a crossover simulator needs. Plain text, one point per line.

    Which software can open the SB42FHCL75-6 files?

    VituixCAD, XSim and REW, and most other crossover tools that read plain text.

    How was this data made?

    It was digitised by Artisan Acoustics from the response and impedance graphs in the SB Acoustics datasheet, so it is not a measurement and not an official SB Acoustics file. Each curve is checked against its graph. The datasheet it came from and the conditions printed on it are in the ABOUT.txt note and in the header of each file inside the zip. Use the files at your own risk.

    Why is the phase column zero?

    The datasheets print level and impedance but not phase. If your simulator needs phase, derive minimum phase there.

    Where can I buy the SB42FHCL75-6 in Singapore or Malaysia?

    From Artisan Acoustics, the official SB Acoustics distributor for Singapore and East and West Malaysia. Message us on WhatsApp