Extended bass performance
optimised for bass performance in sub-woofer applications
The SB220.1 uses a vented, symmetrical field magnet system with an exceptionally long voice coil for large linear excursion capability. The cone uses a long fibred pulp for rigidity and the dustcap is damped by a coat of glossy black dope. Suspension stiffness and excursion is optimised for tight control over high power transients. The Thiele-Small parameters are ideal for easy use in small sealed, vented or bandpass enclosures to give extended bass performance.
Key Stats
86dB/W/m
Sensitivity
25 - 1000Hz
Frequency Response
38mm
Voice Coil Diameter
SB220.1 (8″) Specifications
- Model Number: SB220.1
- Nominal Diameter (mm): 220
- Power Rating (Watt AES): 150
- Frequency Range (Hz): 20-1000
- Nominal Impedance (Ohms): 8
- Voice Coil Diameter (mm): 38
- Voice Coil Height (mm): 30mm
- Voice Coil Layers: 2
- Magnet Gap Height: 6mm
- Linear Excursion (XMax):± 12mm
- Maximum Excursion: 30mm (before damage)
- Volume Displaced (litres): 0.8
- Connection: 5mm Solder Terminals
- Chassis: Diecast Aluminium
SB220.1 (8″) Mounting Information
| Parameter | Measure |
|---|---|
| Overall Diameter | 235mm |
| Mounting Bolt Circle Diameter | 218mm |
| Number and Size of Bolts | 4 M5 |
| Baffle Cutout Diameter | 192mm front mount |
| Baffle Cutout Diameter | 200mm rear mount |
| Depth | 108.5mm below front flange |
| Depth | 118mm total depth |
| Weight | 4.1Kg |
SB220.1 (8″) Thiele-Small Parameters
| Parameter | Measure |
|---|---|
| Fs | 27 Hz |
| Re | 4.8 Ω |
| Sd | 227 cm² |
| Qms | 5.94 |
| Qes | 0.53 |
| Qts | 0.49 |
| Cms | 0.58 mm/N |
| Mms | 50.3g |
| Rms | 1.70 Ωm |
| Bl | 9.72 N/A |
| Sensitivity (1w /1m) | 86 dB |
| VAS | 37.35 litres |
| Le | 0.85 mH |
