ART SERIES

ART 3" Coaxial Speaker Driver (Carbon Fiber, Square Frame)

Model  SV-078C-44-065-0128-01

128–20kHzFrequency Range
82dBSensitivity
4ΩImpedance
15WRated Power

Features

  • 3- inch carbon fiber woofer
  • 0.75-inch polymer material dome tweeter
  • Ferrite External magnetic circuit
  • Concave Suspension System Design
  • Sovox ISP patented coaxial loudspeaker
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01General Specification
UnitLFHF
Diameter mm∅79∅19.7
Nominal impedance Ω44
Program power [1] W155
AES power rating [2] W103
Sensitivity [3] dB8284
Frequency range HzF0–20k
Voice coil diameter inch0.750.75
Frame material Iron basket
Magnet material Ferrite
Recommended crossover [4] Hz2.5k
Xmax [5] mm1.75
Driver displacement enclosure L0.117
02LF T/S Parameters [6]
DC resistanceRe (Ω)3.2
Resonance frequencyFs (Hz)128
Moving massMms (g)3.6
ComplianceCms (mm/N)0.41
Mechanical lossesRms (kg/s)0.3
Force factorBL (N/A)2.3
Mechanical Q-factorQms5.2
Electrical Q-factorQes1.6
Total Q-factorQts1.2
Equivalent air volumeVas (L)0.5
Voice coil InductanceLe (mH)0.05
Diaphragm areaSd (cm²)29.71
Reference efficiencyη0 (%)0.08
03Shipping Information
Net weightkg0.42
Unit sizemmL79×W79×H48
Multipack weightkg
04SPL & Impedance Curve
SPL and impedance curve
Measured with KLIPPEL equipment, on baffle, in Sovox's full-scale anechoic chamber.
05Dimensions mm
dimension drawing dimension drawing

Test Notes

  1. Program power is defined as 3 dB greater than AES power.
  2. Tested in free air for two hours using a continuous band-limited pink noise signal as per AES 2-1984 Rev. 2003.
  3. Measured on axis at 2 V, 1 m; SPL is the average at 200, 500, 800 and 1000 Hz.
  4. High-pass filter with slope 12 dB/oct. or higher.
  5. Xmax = (Hvc − Hg) / 2, where Hvc is voice-coil height and Hg the gap height.
  6. Thiele-Small parameters measured after preconditioning (20–22 °C, 50% RH, 2 h) by Klippel LSI. All specifications subject to change without notice.