The Great Plains Audio Model N1200-8C is a 12-dB/octave, dual-section, passive crossover network, with a center frequency of 1,200 Hertz. This crossover is designed to replace the original crossover used in the famous Altec Lansing Model 19 speaker system. It may also be used with some of our Great Plains Audio products to create your own 2-way speaker system designs.
The N1200-8C crossover is constructed using high quality components, including air-core inductors, polypropylene capacitors, and non-inductive wire wound resistors, which are all mounted to an over-sized copper trace printed-circuit board. Connections to the crossover are made using 12-gauge stranded wire, which provides the efficient transfer of audio power from amplifier to speaker. This crossover also includes two large (100 watt), L-pad controls, which allow adjustments in the mid and high frequency response, so the user can optimize the performance of their speaker system in a variety of applications.
Because the N1200-8C was designed to replace the Model 19 crossover, Great Plains Audio designed a control panel with the same footprint as the original Model 19 control panel; no cabinet modifications are required. However, because of the massive size of the air-core inductors, we recommend that the circuit board be mounted inside the cabinet on the bottom panel.
Although it was designed to replace the Altec Lansing Model 19 crossover, our N1200-8C crossover is also quite suitable for use in other speaker systems, such as any of the 8-ohm Voice of the Theatre speaker systems. When our N1200-8C crossover replaces an older 500 Hz or 800 Hz crossover, the result will be a warmer, more musical listening experience.