Dayton Audio
Dayton Audio - 4" Coaxial Driver - CX120-8
Dayton Audio - 4" Coaxial Driver - CX120-8
In stock
Stock status is updated regularly from my distributor. If the full quantity ordered isn’t available, I’ll get in touch.
Couldn't load pickup availability
Description
With a natural sounding 3/4" soft dome tweeter concentrically mounted in a long throw poly cone 4" woofer Dayton Audio's CX120-8 will produce extremely smooth response on and off-axis while avoiding the phase and lobing issues associated with standard 2-way designs. This driver is perfect for compact designs, portable speakers, or even custom car audio systems.
The Dayton Audio CX120-8 is a full-range coaxial loudspeaker providing high-quality sound in a very compact format featuring a 4" curved linear poly cone woofer mated with a 3/4" silk dome tweeter. The poly cone woofer provides a good balance between stiffness, low mass, and damping making for a very natural sounding driver with a smooth frequency response. The silk dome tweeter provides detailed and clear high frequencies with minimal distortion. In addition, the optimised tweeter placement and flaring reduce the phase issues with the woofer that is commonplace with even the BIG brand coaxes. Designed for use as a full-range in a small bookshelf speaker, an extended range (i.e. midrange/tweeter) driver in a 3-way system, or even car audio systems.
4" Woofer:
- 1" voice coil wound on an aluminium former for high power handling
- Curved linear shaped poly cone provides a good balance between stiffness, low mass and damping making for a natural sounding driver with a smooth frequency response
- Optimised rubber surround for reduced break up in the midrange band
- Attractive rigid open cast frame cast frame to minimise reflections, resonances and improve air flow
- High energy ceramic magnet for greater cone control and improved efficiency
3/4" Tweeter:
- Silk dome provides detail and clarity of high frequencies
- Coaxially mounted to pole piece of woofer cone
- Optimised placement and trimmed flaring to reduce phase issue interaction with woofer
- Strong neodymium magnet
- Trimmed flared throat to minimise phase issues causing suck-out with woofer
- High pass filter required (not included)
Features
- Full-range with accurate bass and extended high frequency response
- Coaxial mounted 3/4" silk dome tweeter
- Open cast frame for improved air flow and minimal power compression
- 4" curvilinear poly cone woofer with rubber half roll surround
Specifications
Specifications
General
| Driver type | Coaxial |
|---|---|
| Nominal size | 4" |
| Nominal impedance | 8Ω |
| Series | Coaxial |
| Power handling (RMS) | 40 W |
| Power handling (program) | 80 W |
| Sensitivity | 88.5 dB |
| Frequency range | 90 – 20,000 Hz |
| Suggested alignment | Ported |
Thiele/Small parameters
| Resonant frequency (Fs) | 87.5 Hz |
|---|---|
| DC resistance (Re) | 6.22 Ω |
| Voice coil inductance (Le) | 0.63 mH |
| Mechanical Q (Qms) | 2.89 |
| Electrical Q (Qes) | 0.57 |
| Total Q (Qts) | 0.48 |
| Equivalent volume (Vas) | 3 L |
| Compliance (Cms) | 0.765 mm/N |
| Moving mass (Mms) | 4.82 g |
| Mechanical resistance (Rms) | 0.9169 kg/s |
| Force factor (Bl) | 5.08 T·m |
| Effective piston area (Sd) | 52.51 cm² |
| Linear excursion (Xmax, one-way) | 3 mm |
| Displacement volume (Vd) | 15.75 cm³ |
| Efficiency bandwidth product (EBP) | 153.5 |
Motor
| Voice coil wire | CCA |
|---|
Mounting
| Overall diameter | 120 mm |
|---|---|
| Cutout diameter | 109.6 mm |
| Mounting depth | 59 mm |
| Mounting holes | 4 |
| Voice coil diameter | 25.4 mm |
| Weight | 0.8845 kg |
Materials
| Cone | Polypropylene |
|---|---|
| Surround | Rubber |
| Voice coil former | Aluminium |
| Basket | Cast Aluminium |
| Magnet | Ferrite |
- Xmax is quoted one-way (peak), not peak-to-peak.
- Sensitivity measured at 2.83V/1m.
Downloads
- CX120-8 Specifications Sheet
- CX120-8 Cutout & Recess Template (NB Audio) Every figure is straight off Dayton Audio's own spec sheet. Left out: recess depth not on file, so measure your flange; no bolt holes (positions not on file). Check it against your driver before you cut.
Where do these figures come from? See the source of each one
