631 SE vs Bowers & Wilkins CDM 2
The CDM 2 matches the 631 SE on sensitivity (87 dB), impedance (8Ω), woofer (6.5"), and ways (2).
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The Tannoy 631SE loudspeakers are a 2-way bookshelf speaker system introduced in the mid-1990s as part of the Tannoy Profile series. They feature a coaxial dual concentric driver design with a 165mm (6.5") bass/midrange cone and a high-frequency tweeter, providing a frequency response from approximately 66 Hz to 30 kHz. The speakers have a nominal impedance of 8 ohms and a sensitivity of 87 dB, making them suitable for use with amplifiers rated between 10 and 70 watts RMS. The crossover frequency is set at 4.5 kHz with a first-order passive crossover network. The cabinet dimensions are 194 mm wide, 343 mm high, and 157 mm deep, weighing about 3 kg (6.6 lbs) each. The 631SE speakers are bi-wireable and typically finished in black ash with original speaker grills included. They are well-regarded for delivering clear, detailed sound in a compact package, suitable for home audio and TV/video center integration. These speakers were manufactured in the United Kingdom and are considered vintage, with production years around 1994 to 1998.
Driver and acoustic performance characteristics
Driver configuration and enclosure design
Size, weight, and appearance
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The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The CDM 2 matches the 631 SE on sensitivity (87 dB), impedance (8Ω), woofer (6.5"), and ways (2).
The 609's sensitivity is 89 dB against the 631 SE's 87 dB. Both share impedance (8Ω), high-frequency extension (30 kHz), and ways (2).
The L1 matches the 631 SE on sensitivity (87 dB), impedance (8Ω), woofer (6.5"), and ways (2).
The SX50's woofer is 5.25" against the 631 SE's 6.5". Both share sensitivity (87 dB), impedance (8Ω), and ways (2).
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