Scan-Speak
Scan-Speak - 1" Classic Dome Tweeter - D2904/950000
Scan-Speak - 1" Classic Dome Tweeter - D2904/950000
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$234.95
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$234.95
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Stock status is updated regularly from my distributor. If the full quantity ordered isn’t available, I’ll get in touch.
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Description
The Classic tweeters are among the many highly praised designs in the Classic series. They have enjoyed success over 3 decades, and are still among the best tweeters available. The Scan-Speak tweeter kick-started a new era with a line of very high quality 1" tweeters. Despite their many years on the market still used in many top High-End speakers around the world.
Features
- 1" Textile Dome Diaphragm
- Ferro Fluid
- Low Resonant Rear Chamber
- Black Painted Alu Face Plate
- 4 ohm
Specifications
Specifications
General
| Driver type | Tweeter |
|---|---|
| Nominal size | 1" |
| Nominal impedance | 4Ω |
| Series | Classic |
| Power handling (RMS) | 150 W |
| Power handling (program) | 430 W |
| Sensitivity | 91 dB |
| Frequency range | 2,500 – 25,000 Hz |
| Recommended crossover | 2. order HP Butterworth, 2.5 kHz |
Thiele/Small parameters
| Resonant frequency (Fs) | 550 Hz |
|---|---|
| DC resistance (Re) | 3.5 Ω |
| Minimum impedance (Zmin) | 4.3 Ω |
| Voice coil inductance (Le) | 0.05 mH |
| Mechanical Q (Qms) | 1.47 |
| Electrical Q (Qes) | 0.53 |
| Total Q (Qts) | 0.39 |
| Equivalent volume (Vas) | 0.02 L |
| Compliance (Cms) | 0.19 mm/N |
| Moving mass (Mms) | 0.45 g |
| Mechanical resistance (Rms) | 1.05 kg/s |
| Force factor (Bl) | 3.2 T·m |
| Effective piston area (Sd) | 9.5 cm² |
| Linear excursion (Xmax, one-way) | 0.1 mm |
| Mechanical excursion (Xmech) | 1.5 mm |
| Efficiency bandwidth product (EBP) | 1,038 |
| Effective piston diameter (D) | 35 mm |
| Impedance at resonance (Zo) | 13.3 Ω |
Motor
| Voice coil height | 2.5 mm |
|---|---|
| Air gap height | 2.5 mm |
| Voice coil layers | 2 |
Mounting
| Overall diameter | 104.3 mm |
|---|---|
| Mounting depth | 43 mm |
| Flange thickness | 3.3 mm |
| Bolt circle diameter | 90 mm |
| Mounting holes | 4 |
| Mounting hole diameter | 5 mm |
| Volume displaced by driver | 0.15 L |
| Voice coil diameter | 28 mm |
| Weight | 0.7 kg |
Materials
| Cone | Textile |
|---|---|
| Magnet | Ferrite |
- Xmax is quoted one-way (peak), not peak-to-peak.
- Sensitivity measured at 2.83V/1m.
- Power handling (RMS) is Scan-Speak's 100-hour RMS noise test (IEC 18.4); program power is its long-term maximum power (IEC 18.2).
Where do these figures come from? See the source of each one
