Your Cart (0)
Thumbnail Filmstrip of Wavecor Subwoofer SW270WA01 4 Ohm 10 Inch Images
Wavecor Speaker Driver - SW270WA01- 4 Ohm 10 Inch Air-Dried Paper Cone Subwoofer
Description
The 10 Inch transducer SW270WA01 was designed specifically for high performance subwoofer applications where sound quality and low distortion are the priorities. It features the Wavecor Balanced Drive motor technology.
Features
- Extremely large linear stroke, Xmax = ±11 mm, ensuring low distortion at high output levels
- Very rigid air dried paper cone cone to ensure piston motion at high levels for reduced distortion
- Chassis with extensive venting for lower air flow speed reducing audible distortion
- Vented centre pole with dual flares for reduced noise level at large cone excursions
- Heavy-duty black fibre glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
- Large motor with 2" voice coil diameter for better control and power handling
- Built-in alu field-stabilising ring for reduced distortion at high levels
- Low-loss suspension (high Qm) for better reproduction of details and dynamics
- Black plated motor parts for better heat transfer to the surrounding air
- Conex spider for better durability under extreme conditions
- Gold plated terminals to ensure long-term trouble free connection
Frequency SPL and Impedance Response Graphs
Loudspeaker Frequency Response Graph
Measuring conditions for SPL
Driver mounting: Flush in infinite baffle
Microphone distance: 1.0 m
Input level: 2.83 VRMS
Smoothing: 1/6 oct.
Technical Specifications
| Notes | Parameter | Value | Unit |
| Nominal size | 10½ | inch | |
| Nominal impedance | 4 | Ohm | |
| Recommended max. upper frequency limit |
400 | kHz | |
| 1, 3 | Sensitivity, 2.83V/1m (calculated from T/S parameters) | 88 | dB |
| 2 | Power handling, short term, IEC 268-5, no additional filtering | W | |
| 2 | Power handling, long term, IEC 268-5, no additional filtering | W | |
| 2 | Power handling, continuous, IEC 268-5, no additional filtering. | 150 | W |
| Effective radiating area, Sd | 312 | cm2 | |
| 3, 6 | Resonance frequency (free air, no baffle), Fs | 28 | Hz |
| Moving mass, incl. air (free air, no baffle), Mms | 88 | g | |
| 3 | Force factor, Bxl | 9.7 | - |
| 3, 6 | Suspension compliance, Cms | 0.37 | mm/N |
| 3, 6 | Equivalent air volume, Vas | 51 | lit. |
| 3, 6 | Mechanical resistance, Rms | 1.9 | Ns/M |
| 3, 6 | Mechanical Q, Qms | 8.1 | - |
| 3, 6 | Electrical Q, Qes | 0.53 | - |
| 3, 6 | Total Q, Qts | 0.49 | - |
| 4 | Voice coil resistance, RDC | 3.2 | Ohm |
| 5 | Voice coil inductance, Le (measured at 1 kHz) | 1.4 | mH |
| Voice coil inside diameter | 51 | mm | |
| Voice coil winding height | 28 | mm | |
| Air gap height | 6 | mm | |
| Theoretical linear motor stroke, Xmax | ±11 | mm | |
| Magnet weight | g | ||
| Total unit net weight excl. packaging | 3.6 | kg | |
| 3, 5 | Krm | 17 | mOhm |
| 3, 5 | Erm | 0.61 | - |
| 3, 5 | Kxm | 10.5 | mH |
| 3, 5 | Exm | 0.75 | - |
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 deg. C
Note 5 It is generally a rough simplification to assume that loudspeaker transducer voice coils exhibit the characteristics of an inductor. Instead it is a far more accurate approach to use the more advanced model often referred to as the "Wright empirical model", also used in LEAP-4 as the TSL model (www.linearx.com), involving parameters Krm, Erm, Kxm, and Exm.
Note 6 After burn-in specifications are measured 12 hours after exiting the transducer by a 20 Hz sine wave for 2 hours at level 10 VRMS. The unit is not burned in before shipping.
Driver Nominal Dimensions
Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)
Terminal Nominal Dimensions
Loudspeaker Driver Terminal Dimensions and Measurements - all dimensions in mm (approx.)
Thickness, both terminals: 0.5 mm
Terminal plating: Gold