Scan-Speak Revelator 28W/4878T01 Subwoofer
SKU:
28W/4878T01
279.4 mm
4 Ω
Deliver deep, controlled bass for high-fidelity audio systems with this Scan-Speak subwoofer, engineered for precise low-frequency reproduction in sealed or ported enclosures. Its low total Q factor of 0.26 ensures tight, accurate response ideal for critical listening. The driver features a 4-ohm impedance and 91 dB sensitivity.
258 990 Ft
(203 929 Ft + VAT)
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Out of stock
Külső raktár 2.
4 pcs
júl. 9.
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Technical data
| Nominal diameter | |
| Impedance | |
| Resonance frequency (Fs) | |
| Sensitivity (SPL at 1 m / 2.83 V) | |
| Power tolerance (max) |
| Maximum linear deflection (Xmax) | |
| Total Q (Qts) | |
| Electromagnetic Q (Qes) | |
| Mechanical Q (Qms) | |
| DC resistance (Re) | |
| Voice coil inductance (L_e) | |
| BL product (BL) | |
| The surface area of the cone (Sd) | |
| Equivalent volume (Iron) | |
| Mechanical compliance of the suspension (Cms) | |
| Drive mechanical losses (RMS) | |
| Voice coil diameter | |
| Dimensions (mm) | |
| Diameter of the baffle cutout | |
| # Mounting holes | |
| Diameter of the access opening | |
| Depth |
The Scan-Speak Revelator 28W/4878T01 Subwoofer represents a pinnacle of low-frequency engineering, delivering deep, controlled bass that transforms high-fidelity audio systems. Designed for the discerning audiophile, this driver excels in both sealed and ported enclosures, making it an ideal choice for home theatre setups, dedicated stereo systems, or custom loudspeaker projects where precise, articulate low-end response is paramount. Whether you are building a reference-grade subwoofer or upgrading an existing design, this unit ensures every note from the deepest organ pedal to the subtlest film score rumble is rendered with authority and clarity.
Technically, the Revelator is a marvel of precision. With a nominal diameter of 279.4 mm and a maximum linear excursion (Xmax) of 7 mm, it moves air with remarkable control. The low total Q factor (Qts) of 0.26, combined with a mechanical Q (Qms) of 6.21 and an electromagnetic Q (Qes) of 0.27, ensures tight, well-damped bass that integrates seamlessly with main speakers. Sensitivity is rated at 91 dB SPL (1m/2.83V), while the 4-ohm impedance and DC resistance (Re) of 3.1 ohms allow for efficient power handling. The voice coil inductance (Le) is a mere 0.5 mH, contributing to excellent transient response. A robust 7-hole mounting pattern and a cut-out diameter of 250.5 mm facilitate straightforward installation, while the overall depth of 155.6 mm accommodates compact enclosures. This subwoofer is a testament to Scan-Speak’s commitment to sonic excellence.
Technically, the Revelator is a marvel of precision. With a nominal diameter of 279.4 mm and a maximum linear excursion (Xmax) of 7 mm, it moves air with remarkable control. The low total Q factor (Qts) of 0.26, combined with a mechanical Q (Qms) of 6.21 and an electromagnetic Q (Qes) of 0.27, ensures tight, well-damped bass that integrates seamlessly with main speakers. Sensitivity is rated at 91 dB SPL (1m/2.83V), while the 4-ohm impedance and DC resistance (Re) of 3.1 ohms allow for efficient power handling. The voice coil inductance (Le) is a mere 0.5 mH, contributing to excellent transient response. A robust 7-hole mounting pattern and a cut-out diameter of 250.5 mm facilitate straightforward installation, while the overall depth of 155.6 mm accommodates compact enclosures. This subwoofer is a testament to Scan-Speak’s commitment to sonic excellence.
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