Mackie C300/C300i Owner's Manual - Page 3

INTRODUCTION Thank you for choosing Mackie Designs' sound reinforcement speakers. The C300 has a Speakon® input, and the C300i has a 1/4 inch phone jack. Apart from this difference, all details in this manual apply to both models. The C300 is a portable two-way loudspeaker system, capable of extremely high sound pressure levels, and designed to give you the best performance of any loudspeaker in its class and price range. Mackie Designs' entry into the sound reinforcement loudspeaker market began with the acquisition of Radio Cine Forniture (RCF), headquartered in Reggio Emilia, Italy. RCF has a long tradition in developing speaker technology for the high-end pro-audio market. The Transducers The C300 features a 12" high-power low-frequency woofer and a 1.75" mylar diaphragm high-output compression driver. The woofer incorporates technology used in large-format touring systems and, with a massive, precision 3-inch voice coil, is virtually indestructible. The high-frequency compression driver is mounted on a multi-cell aperture loaded on a constant directivity horn, providing an ultra-wide, controlled dispersion pattern and precise reproduction of the critical upper mid-range and high-frequencies. The result is an unbelievably smooth off-axis response that allows everyone in the audience to experience the same high-resolution audio no matter where they are seated. Each driver has been specifically designed by our engineers for optimum performance in a lightweight high-strength cabinet. The Crossover This unique Low Impedance Compensated Crossover (LICC) design places inductors in series with the woofer whose values are markedly lower than conventional designs. This reduces the amount of energy that is typically wasted as heat and increases the amount of energy that is transformed into real acoustic power. It also incorporates dynamic protection for the compression driver from non-linear signals. The Cabinet The C300 cabinet was designed to be the strongest molded composite cabinet on the planet. This material is as strong as concrete, and rigid enough to prevent unwanted vibrations and standing waves in the cabinet. It has built-in fly points for hanging, and a socket in the bottom for mounting on a tripod stand. Although it is an exceptional choice for installed sound situations, its light weight and durable finish also make it ideal for portable sound system use. The asymmetrical trapezoidal design of the cabinet also makes it easy to use as a floor wedge for stage monitor applications. The C300 offers a portable, lightweight solution for a variety of high-powered sound reinforcement applications. Inputs The C300 input is a Speakon connector, wired as follows: Pin 1+ is Positive (+) Pin 1- is Negative (-) (Pins 2- and 2+ are not used) The C300i input is 1/4" TS (tip-sleeve), wired as follows: The Tip is Positive (+) The Sleeve is Negative (-) Having these inputs on the C300i speakers makes them an ideal choice for use with one of our PPM-series professional powered mixers. Part No. 820-188-00 Rev. A 7/99 ©1999 Mackie Designs Inc. All Rights Reserved. 3