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Summary of Contents for MartinLogan Ascent LoudSpeaker
- Page 1 S C E N T u s e r ’ s m a n u a l A R T I N O G A N...
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Page 2: Table Of Contents
Electrostatic Advantages ......15 Full Range Operation MartinLogan Exclusives ......17 Curvilinear Line Source... -
Page 3: Installation In Brief
Step 3: Power Connection (AC) (see warning) MartinLogan speakers require AC power to energize their electrostatic cells. Using the AC power cords provided, plug them in first to the AC power receptacle on the rear panel of the speaker, making sure that you have made a firm connection, and then to the wall outlet. -
Page 4: Introduction
NTRODUCTION AND Introduction Congratulations! You have invested in one of the world’s premier loudspeaker systems. The MartinLogan Ascent represents the culmination of an intensive, dedicated group research program directed toward establishing a world class reference monitor utilizing leading-edge technology, without compromising durability, reliability, craftsmanship or aesthetic design. -
Page 5: Operation
AC Power Connection Because your MartinLogan Ascents use an internal power supply to energize their electrostatic cells with high-voltage DC, they must be connected to an AC power source. For this reason they are provided with the proper IEC standard power cords. -
Page 6: Single-Wire Connection
(See Figure 2). Bi-Wire Connection This method of connection replaces the jumper clips installed under the binding posts with individual runs of speaker wire from your amplifier. This doubles the signal carrying conductors from the amplifier to the speaker, thus direct- coupling each portion of the crossover to the amplifier. -
Page 7: Bass Control Switch
The very nature of vertical bi-amping dictates that both amplifiers be identical. With vertical bi-amping, each of the stereo amplifiers is dedicated to one speaker. For instance, the left channel of each amplifier drives the low pass (WOOFER) section while the right channel drives the high pass (ESL) section. -
Page 8: Placement
In long rooms, naturally, that relationship changes. The distance between the speakers will be far less than the distance from you to the speaker system. However, in a wide room, you will still find that if... -
Page 9: Final Placement
On well recorded music, the instruments should extend beyond the edges of each speaker to the left and to the right, yet a vocalist should appear directly in the middle. The size of the instruments should be neither too large nor too small. -
Page 10: Room Acoustics
Reflective Surfaces (near-field reflections) The hard surfaces of your room, particularly if close to your speaker system, will reflect some waves back into the room over and over again, confusing the clarity and imaging of your system. The smaller sound waves are mostly affected here, and occur in the mid and high frequencies. -
Page 11: Dipolar Speakers And Your Room
MartinLogan ETC spikes will fit any common 1/4” inch thread insert that may be found on your other audio equipment (racks, speakers, etc.) -
Page 12: Dispersion Interactions
16" inches above the floor level (See Figure 8). This vertical dispersion profile minimizes interactions with the floor and the ceiling. Figure 7. MartinLogan Ascents deliver a 30 degree wave launch dispersion pattern distributed horizontally. Dispersion Interactions... - Page 13 Figure 13–14. A controlled 30-degree cylindrical wave-front, which is a MartinLogan exclusive, offers optimal sound distribution with minimal room interaction. The result is solid imaging with a wide listening area.
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Page 14: Home Theater
Good subwoofers will provide a foundation for the rest of the system. Figure 15. Ascent speakers as front channels, MartinLogan Theater as the center channel, MartinLogan Scripts as side surround (effects) channels. -
Page 15: Electrostatic Advantages
Since the diaphragm of an electrostatic speaker is uniformly driven over its entire area, it can be extremely light and flexible. This allows it to be very responsive to transients, thus perfectly tracing the music signal. -
Page 16: Full Range Operation
Full Range Operation The most significant advantage of MartinLogan’s exclusive transducer technology reveals itself when you look at examples of other loudspeaker products on the market today. The Ascent uses no crossover networks above 280 Hz because they are not needed. The Ascent consists of a single, seamless electrostatic membrane reproducing all frequencies above 280 Hz simultaneously. -
Page 17: Martinlogan Exclusives
After creating this technology, MartinLogan developed the production capability to bring it out of the laboratory and into the market place. You will find this proprietary MartinLogan technology used in all of our products. -
Page 18: Electrostatic Loudspeaker History
However, Lodge had no intention for his device to reproduce music because in 1898 there was no way to amplify an electrical signal! As a result, his speaker had nothing to offer over the acoustical gramophones of the period. It was not until 1906 that Dr. Lee DeForrest invented the triode vacuum tube. - Page 19 The test instrument needed an extremely accurate speaker, but Janszen found that the cone speakers of the period were too nonlinear in phase and amplitude response to meet his criteria. Janszen believed that electrostats...
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Page 20: Frequently Asked Questions
2 Ohms. Could you suggest a list of suitable electronics and cables that would be ideal for MartinLogan speakers? The area of electronics and cable choice is probably the most common type of question that we receive. It is also the most subjective. - Page 21 How do MartinLogan speakers hold up over a long term in the humidity of tropical climates? We should tell you that MartinLogan indeed has a very substantial number of customers in tropical regions of the world.
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Page 22: Troubleshooting
•Check your speaker wires and connections. •Check all interconnecting cables. Weak Output, Loss of Highs •Check the power cord. Is it properly connected to the speaker? Exaggerated Highs, Brightness •Check the toe-in of the speakers. Read Placement (pages 8–9) for more information. -
Page 23: Service
5 Year Warranty coverage you need to complete and return the Certificate of Registration, included with your speakers, and provide a copy of your dealer receipt, to MartinLogan within 30 days of purchase. MartinLogan may not honor warranty service claims unless... -
Page 24: Glossary Of Audio Terms
Impedance. The total opposition offered by an electric circuit to the flow of an alternating current of a single frequency. It is a combination of resistance and reactance and is measured in ohms. Remember that a speaker’s impedance changes with frequency, it is not a constant value. - Page 25 Sensitivity. The volume of sound delivered for a given electrical input. Stator. The fixed part forming the reference for the moving diaphragm in a planar speaker. THD. The abbreviation for total harmonic distortion. (See Distortion.) TIM. The abbreviation for transient intermodulation distortion.
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Page 26: Notes
OTES Notes... - Page 27 Notes...
- Page 28 A R T I N O G A N 2101 Delaware Street, Lawrence, Kansas 66046, USA tel 785.749.0133 fax 785.749.5320 www.martinlogan.com ©2000 MartinLogan, All rights reserved Rev. #072100...
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