Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Eminent LFT XII
Summary of Contents for Eminent LFT XII
- Page 1 EMINENT TECHNOLOGY INCORPORATED LFT XII CENTER CHANNEL LOUDSPEAKER REFERENCE MANUAL Eminent Technology, Inc. 225 East Palmer Street Tallahassee, Florida 32301 Phone: (850) 575-5655 FAX: (850) 224-5999 Email: info@eminent-tech.com Website: www.eminent-tech.com...
-
Page 2: Table Of Contents
TABLE OF CONTENTS THE LFT-12 PLANAR MAGNETIC CENTER CHANNEL LOUDSPEAKER..3 ABOUT THE LFT-12....................3 UNPACKING ......................3 SETTING UP THE LFT-12..................3 MOUNTING INSTRUCTIONS................3 AMPLIFIER REQUIREMENTS AND SENSITIVITY .......... 4 GETTING THE BEST PERFORMANCE FROM THE LFT-12......4 CLEANING ...................... -
Page 3: The Lft-12 Planar Magnetic Center Channel Loudspeaker
THE LFT-12 PLANAR MAGNETIC CENTER CHANNEL LOUDSPEAKER Congratulations on your purchase of the Eminent Technology LFT-12! The LFT-12 is the most advanced planar magnetic loudspeaker technology available. With proper care and use, the LFT-12 will last many years. To get the most out of your LFT-12, please read this manual carefully. -
Page 4: Amplifier Requirements And Sensitivity
AMPLIFIER REQUIREMENTS AND SENSITIVITY Almost any audio amplifier can be used with the LFT-12. The minimum recommended amplifier power rating is 35 watts RMS per channel for moderate listening levels. Amplifiers up to 150 watts per channel can be used but this much power could over drive the speaker in the full range mode. -
Page 5: A Review Of Previous Loudspeaker Technology
TECHNICAL DESCRIPTION The Eminent Technology Linear Field Transducer (LFT) is a full-range, push- pull, dynamic planar loudspeaker. In a sense, it is the magnetic equivalent of a push-pull electrostatic loudspeaker, differing in that it requires no step-up transformer or bias voltage, and that the audio signal is applied directly to its diaphragm. -
Page 6: The Traditional Planar Magnetic Loudspeaker
A DC charge of high voltage (in the thousands of volts) but very low current, known as the bias voltage, is applied to the conductive diaphragm and kept constant. A step-up transformer is introduced to increase the usable voltage of the amplifier's output (while simultaneously decreasing the current), and the two ends of the transformer's output coil are connected to the two stators. -
Page 7: The Ribbon Loudspeaker
THE RIBBON LOUDSPEAKER The third and final antecedent to consider is the ribbon loudspeaker: a distinctly different sort of transducer, but one that is similar (in principle, at least) to the single-ended planar magnetic loudspeaker. The ribbon’s primary distinction is that its “diaphragm” and “voice element” are one and the same. -
Page 8: Evaluating Earlier Approaches
EVALUATING EARLIER APPROACHES Not surprisingly, each of the approaches described above has its own unique set of pros and cons. The electrostatic, because its diaphragm is so thin and light, offers exceptionally good transient response and reproduction of subtle, low-level musical detail. And, because it is a true push-pull device (i.e., its diaphragm is, by design, driven from both the front and the rear), the ESL operates in a linear fashion. -
Page 9: Linear Field Transducer Construction
Two U.S. patents (4,837,838 and 5,901,235) have been granted to Eminent Technology on its innovative magnetic circuits for flat panel loudspeakers. - Page 10 the diaphragm undergoes, the voice element is always optimally positioned within the magnetic field. The result is extremely linear performance throughout the audible range, with a profound increase in dynamic range and an absolute minimum of distortion. LFT-12 LINEAR FIELD TRANSDUCER [TOP VIEW CROSS SECTION]...
-
Page 11: Technical Information
TECHNICAL INFORMATION GENERAL SPECIFICATIONS Frequency Response 70Hz - 20Khz + or - 4dB Sensitivity 85dB@ 1 watt/1 meter Minimum suggested power 35 watts RMS per channel into 8 ohms Maximum suggested power 150 watts per channel into 8 ohms Maximum sound pressure level 103 dB at 1 meter (midband) Total Radiating Area 140 sq. -
Page 12: Frequency Response
FREQUENCY RESPONSE MEASUREMENTS TAKEN WITH AN INPUT OF 1W/1METER IMPEDANCE CURVE... -
Page 13: Crossover Information
CROSSOVER INFORMATION LFT-12 ELECTRICAL SCHEMATIC... -
Page 14: Warranty
10 days of the personal sale. The obligation of Eminent Technology under the terms of this warranty does not extend to: 1. Any LFT-12 installed or operated without regard for the instructions contained in this manual. -
Page 15: Warranty Form
EMINENT TECHNOLOGY, INC. LFT-12 WARRANTY FORM Name _______________________________________________________ Address______________________________________________________ City_________________________________________________________ State_______________________ Zip_________________________ Dealer Purchased From_________________________________________ Dealer Address________________________________________________ City_________________________________________________________ State_______________________ Zip_________________________ Date Purchased_______________ Serial Number ________________ Please complete this form and return to: EMINENT TECHNOLOGY 225 East Palmer Street Tallahassee, FL 32301...
Need help?
Do you have a question about the LFT XII and is the answer not in the manual?
Questions and answers