← Back to Peerless - ¾" Dome Tweeter Silk - DX20BF00-04
Where the figures for DX20BF00-04 come from
I take every figure from Peerless' own product page or datasheet where I can. This lists where each figure on the DX20BF00-04 page came from.
- 28 from Peerless' product page
- 6 from Peerless' datasheet
- 3 worked out from Peerless' figures
- 1 my estimate
- 3 from NB Audio's listing
General
| Driver type | Tweeter | NB Audio's listing |
|---|---|---|
| Nominal size | 0.75" | NB Audio's listing |
| Nominal impedance | 4Ω | Maker's product page |
| Series | Peerless Dome Tweeter | NB Audio's listing |
| Power handling (RMS) | 10 W | Maker's product page |
| Sensitivity | 84.9 dB | Maker's product page |
Thiele/Small parameters
| Resonant frequency (Fs) | 840 Hz | Maker's product page |
|---|---|---|
| DC resistance (Re) | 3 Ω | Maker's product page |
| Minimum impedance (Zmin) | 3.3 Ω | Maker's product page |
| Voice coil inductance (Le) | 0.012 mH | Maker's product page |
| Mechanical Q (Qms) | 3.05 | Maker's product page |
| Electrical Q (Qes) | 2.92 | Maker's product page |
| Total Q (Qts) | 1.5 | Maker's product page |
| Equivalent volume (Vas) | 0.007 L | Maker's product page |
| Compliance (Cms) | 0.25 mm/N | Maker's product page |
| Moving mass (Mms) | 0.142 g | Maker's product page |
| Mechanical resistance (Rms) | 0.2457 kg/s | Worked out from the maker's figures |
| Force factor (Bl) | 0.869 T·m | Maker's product page |
| Effective piston area (Sd) | 4.52 cm² | Maker's product page |
| Linear excursion (Xmax, one-way) | 0.728 mm | Maker's product page |
| Displacement volume (Vd) | 0.3291 cm³ | Worked out from the maker's figures |
| Efficiency bandwidth product (EBP) | 287.7 | Worked out from the maker's figures |
Motor
| Motor efficiency factor (β) | 0.256 (T·m)²/Ω | Maker's product page |
|---|---|---|
| Air gap height | 2 mm | Maker's product page |
| Voice coil winding height | 1.63 mm | Maker's product page |
| Voice coil layers | 2 | Maker's product page |
| Voice coil wire | CCAW | Maker's product page |
| Magnet size (OD × ID × thickness) | 40 × 22 × 7 mm | Maker's product page |
Mounting
| Overall diameter | 66 mm | Maker's datasheet |
|---|---|---|
| Cutout diameter (suggested) | ≈ 49.6 mm | My estimate, from the maker's drawing |
| Mounting depth | 35 mm | Maker's datasheet |
| Flange thickness | 2.14 mm | Maker's datasheet |
| Bolt circle diameter | 55 mm | Maker's datasheet |
| Mounting holes | 3 | Maker's datasheet |
| Mounting hole diameter | 4.2 mm | Maker's datasheet |
| Voice coil diameter | 19.4 mm | Maker's product page |
| Weight | 0.158 kg | Maker's product page |
Materials
| Cone | Fabric | Maker's product page |
|---|---|---|
| Surround | Silk | Maker's product page |
| Basket | Plastic | Maker's product page |
| Magnet | Ferrite | Maker's product page |
What the labels mean
- Maker's product page: copied from the maker's product page.
- Maker's datasheet: read off the maker's own datasheet or drawing.
- Worked out from the maker's figures: Vd = Sd × Xmax, EBP = Fs ÷ Qes.
- My estimate, from the maker's drawing: measured off the maker's drawing, usually within ±0.3 mm (up to ±0.5). The suggested cutout is the basket's width on the drawing plus 1 mm of clearance (1.5 mm on drivers over 200 mm). Measure before you cut.
- NB Audio's listing: how I've filed it in the store.
Check them yourself: Spec Sheet