12N820

12" Neodymium Ultra low Distortion low Midrange Driver

  • 98 dB Sensitivity 1 W / 1 m
  • 800 W Power Handling
  • Extremely light Weight of 5.5 kg
  • 4″ Copper Sandwich Voice Coil for low Power Compression
  • Double treated Cone for Water Protection
  • Neodymium Magnet System
  • Triple Aluminum demodulating Rings for ultra low Distortion
  • Optimal for compact 2- or 3-way Systems

Specification

12N820 Specification

Application Low-Middle
Nominal Impendance: Ohm 8
Power handling AES noise: W 800
Sensitivity (1 W / 1 m): dB 98
Frequency response: Hz 45 – 1700
Voice Coil Diameter: mm 101.6 (4″)
Voice Coil Material: Cu
Voice Coil Winding Depth: mm 19
Magnet Gap Depth: mm 10
Basket: Cast Aluminum
Effect. diaphragm diameter D mm 260

Recommended reflex enclosure:
8 L / 77 Hz, -3 dB = 104 Hz, BRD = 70 mm / 178 mm long
20 L / 64 Hz, -3 dB = 70 Hz, BRD = 90 mm / 155 mm Long

Thiele-Small

12N820 Thiele-Small Parameters

Resonance Frequency: Fs Hz 37.8
DC Resistance: Re Ohm 5.7
Mechanical Q Factor: Qms 5.3
Electrical Q Factor: Qes 0.16
Total Quality Factor: Qts 0.16
Equivalent Volume: Vas L 98.7
Moving Mass: Mms kg 0.072
Mechanical Complience: Cms mm / N 0.25
BL Factor: BL Tesla m 24.2
Effective Piston Area: Sd 0.0531
Max. linear Excursion: Xmax mm +/- 4.5
Voice Coil Inductance: Le1k mH 0.62
Le10k mH 0.51

Mounting & Drawing

12N820 Drawing

12N820 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 155
Net Weight: kg 5.5

Curves

12N820 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