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Vandersteen 2W - $600 (Derry/Manchester area)
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Subwoofer(s) (3) 8” Critically-Damped Long-Fiber Cones with Butyl Rubber Surrounds, Heavy-Duty 1.5” 4-Layer Voice Coil with 40 oz. Magnet Structure
Subwoofer Amplifier 300-Watts, Zero Current-Limiting
Amplifier Power 300 watts with no current limiting
Frequency Response - 3dB @ 20Hz and 80Hz
System Second order, slot-loaded with less than 1/2 pulse overshoot
Crossover
First order/6dB per octave, 80Hz- Requires external high-pass filter between preamp and power amp matched to power amp such as the Vandersteen WX-2, x-2.
Vandersteen 2W series subwoofers use three active eight-inch drivers rather than a single large woofer. The three eight inch drivers equal the cone area of a fourteen-inch woofer, but with much higher motor-to-cone-area ratio. The high ratio improves pitch definition and insures stable frequency and phase responses throughout and beyond the drivers’ operating range. This allows more crossover design flexibility since a steep-slope, high-order crossover is not necessary when the drivers perform well several octaves past the crossover frequency.
The drivers are downward firing in a front slot-loaded configuration to provide superb bass detail, impact and dynamics while minimizing any potential midrange interference.
Each of the drivers uses a heavy duty 1 1/2 inch, four-layer voice coil engineered to withstand high temperatures. Each voice coil is within a massive 40 oz, high gauss magnet structure for increased control and efficiency. Critically damped, long fiber cones with environmentally stable butyl rubber surrounds are used for excellent rigidity and linearity.
The drivers are connected to a built-in 300-watt amplifier with advanced feed-forward error correction. This powerful amplifier provides the benefits of bi-amplification to the system without the additional expense and complexity of an additional separate amplifier.
The cabinets of the 2W series subwoofers are constructed of MDF (Medium DensityFiberboard), a wood product far more dense and acoustically inert than particle board. FFT analysis and listening tests refined both the shape of the enclosure and the placement of the internal braces. The entire structure is carefully designed to minimize cabinet resonances that could affect the system’s performance.
Feed-Forward Error Correction
Many subwoofers use a negative feedback or servo control type of error correction that samples the output of the subwoofer amplifier or the movement of the driver and makes comparisons to the original input. When a deviation is detected, a correction signal is generated to counter the error. A shortcoming of these systems is that an error must actually occur before the correction process can begin. The negative feedback and the non-linearities of the correction create their own audible distortions that compromise the performance of the subwoofer.
The 2W series uses Feed-Forward Error Correction (FFEC), which eliminates the errors before they begin. Extensive spectrum, FFT and dynamic analysis of the 2W detected the errors that would occur during normal use. The inverse of these errors was then designed into the integral amplifier to eliminate the errors before they could occur. Errors resulting from coupling, loading, driver phase and frequency non-linearities and thermodynamic box loss are eliminated by FFEC.
Input Terminals
(2) Bananas which accept high-level input from power amplifier
Dimensions (WHD) 18” x 18 1/2” x 17”
Weight 80 lbs. Net
Country of Manufacture Made in the USA