The Electro-Voice TX2152 excels where all other dual, 15-inch loudspeakers fail - transient detail. The secret to the TX2152 is its combination of dual, low distortion woofers with an integrated analog crossover that uses elliptical filters to achieve 36 dB per octave slopes at the crossover frequency. The result is crossover performance that surpasses many electronic DSP devices and bi-amping.