12S305

12" Ultra low Distortion Driver

  • 95 dB Sensitvity 1 W / 1 m
  • 800 W Power Handling
  • 3″ Copper Sandwich Voice Coil for low Power Compression
  • Double Treated Cone for Water Protection
  • Triple Aluminum demodulating Rings for ultra low Distortion
  • Optimal for compact Subwoofers
  • Light weight Carbon Fiber Diaphragm

Specification

12S305 Specification

Application
Nominal Impendance: Ohm 8
Power handling AES noise: W 800
Sensitivity (1 W / 1 m): dB 95
Frequency response: Hz 35 – 2500
Voice Coil Diameter: mm 77 (3″)
Voice Coil Material: Cu
Voice Coil Winding Depth: mm 32
Magnet Gap Depth: mm 10
Basket: Cast Aluminum
Effect. diaphragm diameter D mm 256

Recommended reflex enclosure:
30 L / 50 Hz, BRD = 100 mm / 226 mm long
40 L / 45 Hz, BRD = 100 mm / 204 mm long

Thiele-Small

12S305 Thiele-Small Parameters

Resonance Frequency: Fs Hz 35
DC Resistance: Re Ohm 5.4
Mechanical Q Factor: Qms 5.8
Electrical Q Factor: Qes 0.278
Total Quality Factor: Qts 0.265
Equivalent Volume: Vas L 82
Moving Mass: Mms kg 0.095
Mechanical Complience: Cms mm / N 0.218
BL Factor: BL Tesla m 20.14
Effective Piston Area: Sd 0.0515
Max. linear Excursion: Xmax mm +/- 11
Voice Coil Inductance: Le1k mH 0.7
Le10k mH 0.41

Mounting & Drawing

12S305 Drawing

 

12S305 Mounting Information

Overall Diameter: mm 318
Mounting Holes Diameter: mm 8 x (7 x 8)
Bolt Circle Diameter: mm 300
Baffle cut-out Diameter: mm 284
Overall depth: mm 153
Net Weight: kg 8

Curves

12S305 Curves

Frequency Response measured 100 W (28.3 V)
at 1 m in a closed enclosure of 50 litre in an anechoic chamber incl. 2nd and 3rd harmonic distortion raised 20 dB.


Downloads

Downloads