User manual ALTEC LANSING 290 HF DRIVERS

[. . . ] The 515 is truly legendary, and Altec Lansing's 5158HHP and 515-16HHP are the two newest models in this series. Continuing in the tradition of the 515 series, these two new models produce the outstanding fidelity that established Altec Lansing as the number one choice in theater, auditorium, and studio applications. The 515-8HHP and 515-16HHP are constructed from one of the industry's largest magnet structures mated to a very lightweight cone assembly, resulting in two of the most efficient low frequency loudspeakers that Altec Lansing has ever produced. [. . . ] Both low frequency loudspeakers incorporate a high-power handling, edge-wound aluminum, flat-wire voice-coil, which is designed for dependability and high acoustic output level capability. These low frequency loudspeakers also feature a special cloth suspension, which provides extended low frequency response and extremely high linearity. The new 515-HHP series loudspeakers are designed to maximize the performance of bass horn enclosures (vented or sealed). The 515-16HHP is rated at a nominal 16 ohm impedance, making it the first choice for dual-loudspeaker, vented bass horn cabinets, like the Altec Lansing 210/211 and 817A enclosures. Installation of these low frequency loudspeakers is made simple with 0. 25-inch blade type wire terminals, allowing either solder connections or crimp type quick-connect wire terminals. The Altec Lansing models 515-8HHP and 515-16HHP are perfect complements to our high frequency compression drivers when the requirements are superior efficiency, excellent low frequency response, premium sound quality, high acoustic output level, and absolute reliability. 1000 W. Wilshire Blvd. , Suite 362 · Oklahoma City, Oklahoma 73116 · Phone: 1-405-848-3108 · Fax: 1-405-848-3217 · www. altecpro. com ARCHITECTS & ENGINEERS SPECIFICATION The loudspeakers shall be multi-purpose, 15 inch / 381 mm low frequency cone drivers. 3 The sensitivity of the loudspeaker system is the log based average SPL taken over the intended bandwidth of operation for the system with a 2. 83 V swept sine stimulus. The data is measured and level corrected in a manner consistent with notes 1 and 2. 4 The power handling capacity of the loudspeaker system is tested using a full range form of AES Standard 2-1984. The test stimulus is band limited (40 Hz ­ 16 kHz) pink noise with a 6 dB crest factor. The applied RMS voltage is determined using the minimum impedance of the system. The amplifier used to drive the system has a minimum operating headroom of 6 dB referenced to the RMS voltage. 5 The peak output level of the loudspeaker system is calculated based on the sensitivity and the peak power handling capabilities of the system. [. . . ] The amplifier used to drive the system has a minimum operating headroom of 6 dB referenced to the RMS voltage. 5 The peak output level of the loudspeaker system is calculated based on the sensitivity and the peak power handling capabilities of the system. 6 The minimum impedance of the loudspeaker system is taken over its intended band of operation. [. . . ]