| Specification | Value | Unit | |
| Overall diameter | 220 | mm | |
| Cutout Diameter/Square | 191 | mm | |
| Min. frontplate thickness | 9 | mm | |
| Overall depth | 112.5 | mm | |
| Motor assembly depth | 49.5 | mm | |
| Motor assembly diameter | 120 | mm | |
| Screwfitting | DIN 7984 / Ø 4.50 | mm | |
| Terminal | +: 6.3 x 0.8 / -: 4.8 x 0.8 | mm | |
| Shipping weight (pair) | 9.5 | Kg | |
| Shipping box size (pair) | 250/290/250 | mm | |
S220-6-222 Sandwich Bass
Vented box design parameters:
Vb: 30L, Fres: 23Hz with passive radiator, -12dB @ 25Hz, Q: 0.47 (optimal A/V alignment)
Vb: 25L, Port diameter: 70mm, Length: 230mm, Fres: 40Hz, F-3dB: 43Hz, Q: 0.50
Vb: 40L, Port diameter: 70mm, Length: 155mm, Fres: 37Hz, F-3dB: 37Hz, Q: 0.43 (extended bass)
Closed Box design parameters:
Vb: 12L, -11dB @ 40Hz, F-3dB: 69Hz, Q: 0.71 (typical)
Vb: 25L, -8dB @ 40Hz, F-3dB: 70Hz, Q: 0.50 (extended bass)
Highlights
8.5 inch sandwich cone bass with high efficiency for 2 or 3-way designs.
Large sized voice coil with 55mm titanium voice coil former.
Big, underhung 120mm Neodymium magnet system for very low distortion.
| Dome material | Sandwich |
| Application | Bass |
| Overall diameter | 220 MM |
| Cutout Diameter/Square | 191 MM |
| Overall depth | 112.5 MM |
| Motor assembly depth | 49.5 |
| Motor assembly diameter | 120 |
Main Features
underhung motor design
55mm Titanium VC Former
Soft Rubber Surround
Vented VC, Pole Piece & Spider
31 HZ - 1 KHZ in ventilierter Box
Mechanical Data
Thiele/Small Parameters
| Specification | Value | Unit | |
| Sensitivity (2.83V / 1m) | Spl | 91.5 | dB |
| DC-resistance | Re | 6.52 | Ohm |
| Resonance frequency | Fs | 25 | Hz |
| Equivalent volume of air | Vas | 89.68 | ltr |
| Mechanical Q | Qms | 3.83 | |
| Electrical Q | Qes | 0.27 | |
| Total Q | Qts | 0.26 | |
| Effective piston area | Sd | 224 | Cm2 |
| Moving mass | Mms | 32.15 | g |
| Suspension compliance | CMs | 1.26 | mm/n |
| Mechanical resistance | Rms | 1.32 | Kg*s |
voice coil parameters
| Specification | Value | Unit | |
| Power handling | P | 150 | W |
| Linear excursion | Xmax | +/-5.25 | mm |
| Voice coil diameter | 55 | mm | |
| Voice coil former material | Ti | ||
| Voice coil material | Cu | ||
| Voice coil inductance | Le | 0.36 | mH |
| Force factor | Bl | 10.95 | N/A |
| Motor type | Underhung | ||
| Ferrofluid filling | No | ||
Frequency Response [DB]
Impedance [Ohm]
Harmonic Distortion [%]
