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Scan-Speak
Scan-Speak - 13" Revelator Woofer - 32W/4878T01
Scan-Speak - 13" Revelator Woofer - 32W/4878T01
Regular price
$989.95 AUD
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$989.95 AUD
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Description
32cm Woofer 4ohm, Sandwich Paper Cone, Ferrite Magnet
The 32W/4878T01 is the most powerful woofer designed by Scan-Speak. Its large 3” voice coil and low resonance frequency is perfect to reproduce low to mid frequencies with high efficiency. It features a brand new type of paper-sandwich cone with a special foam filling technology (patented) that gives the cone very high stiffness and relatively low weight. The motor system has heavy-duty copper sleeves for optimising eddy currents effect and minimised self-induction.
Features
- Paper sandwich cone with Patented foam filling
- Lin. excursion (±7.0 mm) with high efficiency
- Patented Symmetrical Drive motor
- 3" Voice coil, Titanium former and paper reinforced
- Spider with balanced woven in tinsel leads
- Stiff and strong die cast aluminium chassis
Specifications
Specifications
General
| Driver type | Woofer |
|---|---|
| Nominal size | 13" |
| Nominal impedance | 4Ω |
| Series | Revelator |
| Power handling (RMS) | 150 W |
| Power handling (program) | 400 W |
| Sensitivity | 92 dB |
| Suggested alignment | Either |
| Frequency range | fs – 1,500 Hz |
Thiele/Small parameters
| Resonant frequency (Fs) | 23 Hz |
|---|---|
| DC resistance (Re) | 3.1 Ω |
| Voice coil inductance (Le) | 0.3 mH |
| Mechanical Q (Qms) | 6 |
| Electrical Q (Qes) | 0.3 |
| Total Q (Qts) | 0.28 |
| Equivalent volume (Vas) | 170 L |
| Compliance (Cms) | 0.43 mm/N |
| Moving mass (Mms) | 112 g |
| Mechanical resistance (Rms) | 2.7 kg/s |
| Force factor (Bl) | 13 T·m |
| Effective piston area (Sd) | 526 cm² |
| Linear excursion (Xmax, one-way) | 7 mm |
| Mechanical excursion (Xmech) | 28 mm |
| Displacement volume (Vd) | 368.2 cm³ |
| Efficiency bandwidth product (EBP) | 76.67 |
| Effective piston diameter (D) | 260 mm |
Motor
| Voice coil height | 22 mm |
|---|---|
| Air gap height | 8 mm |
| Voice coil layers | 2 |
Mounting
| Overall diameter | 320 mm |
|---|---|
| Flange thickness | 7.55 mm |
| Bolt circle diameter | 305 mm |
| Mounting holes | 9 |
| Mounting hole diameter | 6.3 mm |
| Volume displaced by driver | 2.65 L |
| Voice coil diameter | 75 mm |
| Weight | 7.5 kg |
Materials
| Cone | Sandwich Paper |
|---|---|
| Magnet | Ferrite |
Typical box tunings
| Closed box: box volume | 40 L |
|---|---|
| Closed box: corner frequency | 53 Hz |
| Vented box: box volume | 69 L |
| Vented box: box resonance | 30 Hz |
| Vented box: corner frequency | 34 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).
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