...了体积，三个单元中，两个负责低音的还原，为了使得高、低音更加清晰可辨，细节更加突出，又加入了被动交叉（passive crossover）技术，从听感上确实可以感受到提高。
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分频器有两大类：一类是被动分频器(passive crossover)，亦称功率分频器；另一类是自动分频器(active crossover)，亦称电子分频器。
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Electronic Crossovers - Possible phase shifts from a passive crossover are eliminated by using DSP electronic crossovers within Spinnaker's amplifiers.
ENGADGET: Edifier's Spinnaker Bluetooth speaker system promises not to hurt you, sells for $350
In addition, Edifier engineers have freed up valuable internal space within Spinnaker by eliminating a large passive crossover printed circuit board, with coils, capacitors and resistors.
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