← Back to Scan-Speak - 1" Illuminator Ring Radiator Tweeter - R3004/602010
Where the figures for R3004/602010 come from
I take every figure from Scan-Speak's own product page or datasheet where I can. This lists where each figure on the R3004/602010 page came from.
- 27 from Scan-Speak's datasheet
- 2 worked out from Scan-Speak's figures
- 3 from NB Audio's listing
General
| Driver type | Tweeter | NB Audio's listing |
|---|---|---|
| Nominal size | 1" | NB Audio's listing |
| Nominal impedance | 4Ω | Maker's datasheet |
| Series | Illuminator | NB Audio's listing |
| Power handling (RMS) | 50 W | Maker's datasheet |
| Sensitivity | 87.5 dB | Maker's datasheet |
Thiele/Small parameters
| Resonant frequency (Fs) | 420 Hz | Maker's datasheet |
|---|---|---|
| DC resistance (Re) | 3 Ω | Maker's datasheet |
| Minimum impedance (Zmin) | 3.8 Ω | Maker's datasheet |
| Voice coil inductance (Le) | 0.02 mH | Maker's datasheet |
| Mechanical Q (Qms) | 2.57 | Maker's datasheet |
| Electrical Q (Qes) | 1.03 | Maker's datasheet |
| Total Q (Qts) | 0.74 | Maker's datasheet |
| Equivalent volume (Vas) | 0.02 L | Maker's datasheet |
| Compliance (Cms) | 0.41 mm/N | Maker's datasheet |
| Moving mass (Mms) | 0.35 g | Maker's datasheet |
| Mechanical resistance (Rms) | 0.36 kg/s | Maker's datasheet |
| Force factor (Bl) | 1.7 T·m | Maker's datasheet |
| Effective piston area (Sd) | 5.6 cm² | Maker's datasheet |
| Linear excursion (Xmax, one-way) | 0.2 mm | Maker's datasheet |
| Mechanical excursion (Xmech) | 1.6 mm | Maker's datasheet |
| Displacement volume (Vd) | 0.112 cm³ | Worked out from the maker's figures |
| Efficiency bandwidth product (EBP) | 407.8 | Worked out from the maker's figures |
Mounting
| Overall diameter | 61.7 mm | Maker's datasheet |
|---|---|---|
| Mounting depth | 55.4 mm | Maker's datasheet |
| Flange thickness | 5 mm | Maker's datasheet |
| Bolt circle diameter | 53.9 mm | Maker's datasheet |
| Mounting holes | 3 | Maker's datasheet |
| Mounting hole diameter | 3.3 mm | Maker's datasheet |
| Volume displaced by driver | 0.12 L | Maker's datasheet |
| Voice coil diameter | 26 mm | Maker's datasheet |
| Weight | 0.2 kg | Maker's datasheet |
Not on file: Cutout. Either the maker doesn't publish it or I haven't found it yet.
What the labels mean
- 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.
- NB Audio's listing: how I've filed it in the store.
Check them yourself: Scan-Speak datasheet