1
/
of
1
Scan-Speak
Scan-Speak - 11" Revelator Woofer - 28W/8878T01
Scan-Speak - 11" Revelator Woofer - 28W/8878T01
Regular price
$984.95 AUD
Regular price
Sale price
$984.95 AUD
Unit price
/
per
Tax included.
Shipping calculated at checkout.
Couldn't load pickup availability
Description
A 28 cm (11") woofer from Scan-Speak's Revelator range, with a large 3" voice coil, long linear excursion and a low resonance frequency for the deepest bass. Its paper-sandwich cone is very stiff for its weight, and the patented Symmetrical Drive motor has heavy-duty copper sleeves to control eddy currents and self-induction.
Features
- Paper sandwich cone
- Spider with balanced tinsel leads
- 3" Voice coil, Titanium former, paper reinforced
- Patented Symmetrical Drive motor
- Long linear excursion
- Stiff and strong die cast aluminium chassis
Specifications
Specifications
General
| Driver type | Woofer |
|---|---|
| Nominal size | 11" |
| Nominal impedance | 8Ω |
| Series | Revelator |
| Power handling (RMS) | 200 W |
| Power handling (program) | 500 W |
| Sensitivity | 88.5 dB |
| Frequency range | fs – 1,000 Hz |
| Recommended crossover | 2. order LP Butterworth, 200 Hz |
Thiele/Small parameters
| Resonant frequency (Fs) | 22 Hz |
|---|---|
| DC resistance (Re) | 6.3 Ω |
| Minimum impedance (Zmin) | 7.4 Ω |
| Voice coil inductance (Le) | 0.55 mH |
| Mechanical Q (Qms) | 5.81 |
| Electrical Q (Qes) | 0.33 |
| Total Q (Qts) | 0.31 |
| Equivalent volume (Vas) | 116 L |
| Compliance (Cms) | 0.62 mm/N |
| Moving mass (Mms) | 84 g |
| Mechanical resistance (Rms) | 2 kg/s |
| Force factor (Bl) | 14.9 T·m |
| Effective piston area (Sd) | 363 cm² |
| Linear excursion (Xmax, one-way) | 7.5 mm |
| Mechanical excursion (Xmech) | 28 mm |
| Displacement volume (Vd) | 272.2 cm³ |
| Efficiency bandwidth product (EBP) | 66.67 |
| Effective piston diameter (D) | 215 mm |
| Impedance at resonance (Zo) | 136 Ω |
Motor
| Voice coil height | 23 mm |
|---|---|
| Air gap height | 8 mm |
| Voice coil layers | 2 |
Mounting
| Volume displaced by driver | 2.23 L |
|---|---|
| Voice coil diameter | 75 mm |
| Weight | 7.5 kg |
Materials
| Cone | Sandwich Paper |
|---|---|
| Magnet | Ferrite |
Typical box tunings
| Closed box: box volume | 31 L |
|---|---|
| Closed box: corner frequency | 48 Hz |
| Vented box: box volume | 57 L |
| Vented box: box resonance | 27 Hz |
| Vented box: corner frequency | 30 Hz |
- 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).
Share
