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Thumbnail Filmstrip of Wavecor Subwoofer SW223BD03 8 Ohm 8 Inch Images
Wavecor Speaker Driver - SW223BD03 - 8 Ohm 8¾" Alu-Cone Subwoofer
Description
The Wavecor SW223BD03 is an 8 Ohm 8¾" black aluminium cone subwoofer engineered
specifically for high performance compact subwoofer applications where ultimate sound quality, deep bass extension, and
low distortion are the primary priorities.
Powered by a heavy-duty motor structure with a large 51 mm (2") voice coil diameter, the SW223BD03 delivers outstanding power handling and precise mechanical control under heavy excursions. Featuring an impressive linear excursion of ±10.7 mm, effective chassis and voice coil venting, and an internal aluminium field-stabilising ring, it minimises distortion and compression to deliver clean, dynamic low-frequency reproduction in compact sealed or vented enclosures.
Features:
- Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced even order harmonic distortion
- Extremely large linear stroke (Xmax = ±10.7 mm) ensuring low distortion at high output levels
- Very rigid black aluminium cone to ensure true piston motion at high levels and superior heat dissipation under continuous high power
- Rigid die cast aluminium chassis with extensive venting for lower airflow velocity, reducing audible air turbulence
- Heavy-duty black fibre glass voice coil former to reduce mechanical losses, resulting in enhanced dynamic performance and low-level detail
- Large motor system with 51 mm (2") voice coil diameter for exceptional control and high power handling
- Built-in aluminium field-stabilising ring for reduced magnetic distortion at high power levels
- Low-loss suspension (high Qm) for better reproduction of subtle details and transients
- Black-plated cone and motor components for improved heat transfer to surrounding air
- Conex spider for maximum durability under extreme operational conditions
- Gold-plated terminals to prevent oxidation and ensure long-term, reliable signal connection
Technical Specifications
| Notes | Parameter | Value | Unit |
|---|---|---|---|
| - | Nominal size | 8¾ | inch |
| - | Nominal impedance | 8 | Ohm |
| - | Recommended max. upper frequency limit | 1.0 | kHz |
| 1, 3 | Sensitivity, 2.83V/1m (calculated from T/S parameters) | 81 | dB |
| 2 | Power handling, short term, IEC 268-5 (no filtering) | - | W |
| 2 | Power handling, long term, IEC 268-5 (no filtering) | - | W |
| 2 | Power handling, continuous, IEC 268-5 (no filtering) | 200 | W |
| - | Effective radiating area, Sd | 206 | cm² |
| 3, 6 | Resonance frequency (free air, no baffle), Fs | 25 | Hz |
| - | Moving mass, incl. air (free air, no baffle), Mms | 89 | g |
| 3 | Force factor, Bxl | 13.1 | N/A |
| 3, 6 | Suspension compliance, Cms | 0.47 | mm/N |
| 3, 6 | Equivalent air volume, Vas | 28 | litres |
| 3, 6 | Mechanical resistance, Rms | 1.35 | Ns/m |
| 3, 6 | Mechanical Q, Qms | 10.2 | - |
| 3, 6 | Electrical Q, Qes | 0.48 | - |
| 3, 6 | Total Q, Qts | 0.46 | - |
| 4 | Voice coil resistance, Rdc | 6.0 | Ohm |
| 5 | Voice coil inductance, Le (measured at 1 kHz) | 1.16 | mH |
| - | Voice coil inside diameter | 51 | mm |
| - | Voice coil winding height | 29.4 | mm |
| - | Air gap height | 6 | mm |
| - | Theoretical linear motor stroke, Xmax | ±10.7 | mm |
| - | Magnet weight | - | g |
| - | Total unit net weight (excl. packaging) | 4.4 | kg |
| 3, 5 | Krm | 88 | mOhm |
| 3, 5 | Erm | 0.40 | - |
| 3, 5 | Kxm | 36 | mH |
| 3, 5 | Exm | 0.54 | - |
Specification Notes:
Note 1: Measured in infinite baffle.
Note 2:
Tested in free air (no cabinet).
Note 3: Measured using a semi-constant current source, nominal level
2 mA.
Note 4: Measured at 20°C.
Note 5: Standard coil models simplify voice
coil inductance. Wavecor utilises the advanced Wright empirical model (TSL model in LEAP-4) using parameters Krm, Erm, Kxm,
and Exm for increased simulation accuracy.
Note 6: Specifications after burn-in are measured 12 hours
after driving the transducer with a 20 Hz sine wave for 2 hours at 10/14.1 Vrms (4/8 Ohm version). Transducers are not burned
in prior to shipping.