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Scan-Speak Revelator 18W/4531G00 woofer
The Scan-Speak Revelator 18W/4531G00 is a 7-inch mid-range woofer that is known for its smooth frequency response, midrange clarity, and overall high performance.
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Scan-Speak Revelator 18W/4531G00 woofer
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The Scan-Speak Revelator 18W/4531G00 is a 7-inch mid-range woofer that is known for its smooth frequency response, midrange clarity, and overall high performance. It features a sliced paper cone that is filled with damping glue, which helps to reduce break-up modes and improve the overall sound quality. The woofer also has a low-loss linear suspension and a patented Symmetrical Drive (SD-1) motor design, which further contribute to its excellent performance.
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Highlights
Sliced paper cone with dampening glue
Low loss linear suspension
Patented Symmetrical Drive (SD-1) motor design
4-ohm impedance
90 dB sensitivity
33Hz resonance frequency
41.9 liter equivalent volume
0.35 total Q factor
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Product details
The Scan-Speak 18W/4531G00 is a 18 cm (7") woofer from the Revelator series. It features a sliced paper cone, a large ferrite magnet, and a low-loss linear suspension. The sliced cone helps to reduce cone breakup, while the low-loss suspension minimizes distortion. The large ferrite magnet provides good power handling and bass response.
The Scan-Speak Revelator 18W/4531G00 is a high-performance mid-range woofer that is well-suited for a variety of applications, including home audio, studio monitors, and professional sound reinforcement. It is a great choice for those who are looking for a woofer that delivers excellent sound quality and performance.
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Features
- Item number: 18W/4531G00
- EAN 8785256848416
- Woofer series Scan-Speak Revelator series
- Woofer type Midwoofer
- Nominal diameter 7 inches
- Power handling (QMW) 70 watts
- Power handling (max) 110 watts
- Impedance (Z) 4 ohms
- Sensitivity (SPL at 1 m / 2.83 V) 90 dB
- Frequency response 33-7000 Hz
- Voice coil diameter 38 mm
- DC resistance (Re) 3.4 ohms
- Voice coil inductance (Le) 0.3 mH
- Resonance frequency (Fs) 33 Hz
- Mechanical quality factor (Qms) 5.20
- Electrical quality factor (Qes) 0.38
- Total quality factor (Qts) 0.35
- Moving Mass (Mms) 17.5 g
- Suspension Compliance (Cms) 1.33 mm/N
- Diaphragm Area (Sd) 157 cm2
- Force Factor (BL) 5.7 Tm
- Equivalent Volume (Vas) 41.1 liters
- Maximum Excitation (Xmax) 11 mm
- Driver's Mechanical Losses (Rms) 0.70 kg/s
- Outer Diameter 182.2 mm
- Total Depth 77.4 mm
- Cutout Diameter 156 mm
- # Mounting Holes 5
- Mounting Hole Diameter 5.3 mm
- Bass Reflex Volume 35 liters
- Bass Reflex F3 17 liters

18W/4531G00
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Scan-Speak was founded in 1970 by Ejvind Skaaning and is today a world leader in the development and manufacture of high-end transducers. Scan Speak chassis have been used for years by the largest hifi and high-end loudspeaker manufacturers worldwide, obtaining unsurpassed results.
Scan-Speak Discovery
The Discovery family is one of the largest lines in Scan-Speak’s families, and a lot of its drivers are best sellers in Nonsolospeakers shop. This line of products is so popular because it offers a wide variety of choices of sizes. The design is based on traditional electroacoustic knowledge and craftsmanship. The cones are made of a glass fibre material coated to achieve proper damping, and that ensures smooth sound pressure frequency response. In this family, the well-known design, namely the 3” dome midrange Scan-Speak D7608/920000, still goes strong in terms of quality and performance despite its many years on the market. Other popular products in this family are the Scan-Speak Discovery R2604/832000, the Scan-Speak Discovery D2606/922000, and the Scan-Speak Discovery D2604/833000.
Scan-Speak Illuminator
The Illuminator line features advanced technology, and incredible performance. Characterized by an extreme care in the realization of the coils which are equipped with a linear excursion. Combined with the care in the use of materials for the cones and diaphragms guarantee transparency, detail and, the lack of distortion even at the highest levels is difficult to find elsewhere. The most popular example of this family is the Scan-Speak 18WU/8741T00 illuminator.
Scan-Speak Revelator
Products in the Revelator family feature a slit-paper uncoated non-resonant cone that reproduces music at a dynamic level, and clarity was unparalleled in the market. The tweeters are predominantly designed with a large roll surround, a powerful ring of Neodymium magnets, and optimized airflow systems. Within the wide Revelator range, you will find everything you need when it comes to high-end audio transducers, whether you need drivers for a small 2-way system or a giant multi-way loudspeaker. The Scan-Speak 15W/4531G, for example, provides a more extended frequency response than its brothers but still fantastic bass in a vented enclosure.
Scan-Speak Classic
The quality and success of Scan-Speak's designs are found in the Classic family with patented and proprietary technologies such as Symmetrical Drive, Low Loss Linear Suspension, Air-Dry Carbon Reinforced Paper Cones, and Paper Reinforced Nylon. The latest additions are Scan-Speak Classic D2904/980000 and Scan-Speak Classic D2008/851100.
Scan-Speak Ellipticor
One of the goals for a new driver concept at Scan-Speak was to minimize cone modes, and this family uses an innovative concept: an elliptical-shaped voice coils to control the cone and dome. By not driving the diaphragm asymmetrically, what you get is an “infinite” number of Eigen frequencies, but less contribution for each frequency and overall lower distortion. Driving the diaphragm symmetrically gets you a finite number of Eigen frequencies with a higher contribution combining at certain frequencies producing the “dreaded” colouration modes. From this concept, it was developed the Scan-Speak Ellipticor 18WE/4542T00.
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