l Support two-band (low and high frequency) linear-phase crossover filter for stereo channel. Frequency crossover frequency can be set by different resistor sets shown in the Table I.
l Attenuation 80dB/decade or 24dB/octave, linear phase.
l Maximum input voltage: +/-18V
l Maximum output voltage: +/-16V
l Either use of very low distortion high quality audio OPAMP AD797, 0.03% at f=1k Hz typical or low noise OPAMP NE5534.
l Three APLS / STD 50K POTs are used for the volume control: gain, low and high pass, for 0dB to -100dB attenuation.
l Implement with non-inductance 1% Dale resistors, WIMA / RIFA / EVOX film capacitors, and Nichicon FW capacitors.
l High power rejection ratio: 80dB and channels isolation: 100dB
l Symmetric PCB design for both R and L channels.
l High quality PCB, blue solder mask, double layer, 2.4mm thickness, 2oz copper. PCB dimension: 188(L) x 85(W) mm.
l Required power supply: +/-15V to +/-18V DC, 80mA
APPLICATIONS
l For professional bi-amp, it requires exactly the same response time for the low and high frequency components.
l Audiophile low-pass and high pass filters.