One pair of crossovers.
Like new, never used, box opened just for inspection.From the GPA site:
"The Great Plains Audio Model N1600-8A is a 12-dB/octave dual-section passive crossover network having
a center frequency of 1,600 Hertz. It is designed specifically to provide smooth response from our Model 604-8H,
Series II Loudspeaker throughout its bandwidth. This combination results in a speaker system that is ideal for use
in home theatre and high-quality audiophile systems, recording studios, and professional sound system installations.
The N1600-8A is not an “off-the-shelfâ€, generic crossover, conceived by computer with resistive loads. Instead,
it was created through extensive tests using an actual 604-8H-II loudspeaker in it’s proper enclosure in real time.
This method of design resulted in a crossover that has been optimized for the 604-8H-II, which enables it to exhibit
well balanced, phase-coherent performance at high power levels, but with ultra-low distortion.
The N1600-8A Crossover is constructed using the components of the highest quality, including air-core
inductors, polypropylene capacitors, and non-inductive wire wound resistors, which are mounted to a printed-circuit
board having large copper traces. Connections are made using large, 12-gauge stranded wire, which allows for
efficient transfer of audio power from the amplifier to the speaker.
The GPA Model N1600-8A Crossover is the choice for use with our Model 604-8H-II when clear, natural, and
uncolored sound reproduction are essential, and high power handling with low distortion are required.
Though specifically designed for our Model 604-8H-II Two-Way Loudspeaker, the N1600-8A Crossover is also
quite suitable for use with earlier Altec Lansing® 604-series loudspeakers. The 604-8G, 604-8H, 604-8K, and 904-
series loudspeakers all perform well using this crossover."
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