MartinLogan Fresco manuale d’uso

TM F RESCO TM user ’s manual M ART I N L OGA N the loudspeaker technology company ®[...]

2 Contents & Introduction C ONTENTS &I NTRODUCTION Contents & Introduction . . . . . . . . . . . . . . . . . . . .2 Contents Introduction Installation in Brief . . . . . . . . . . . . . . . . . . . . . . . .3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Signal Connection On W all/Off W all Switch Break -In Mo[...]

Installation in Brief 3 I NST ALLA TION IN B RIEF W e know you are eager to hear your new F resco loud- speaker , so this section is provided to allow fast and easy set up. Once you have it operational, please take the time to read, in depth, the rest of the information in this manual. It will give you perspective on how to attain the greatest pos-[...]

Use the best speaker cables you can. The length and type of speaker cable used in your system will have an audible effect. Under no circumstance should a wire of gauge higher (thinner) than #16 be used. In general, the longer the length used, the greater the necessity of a lower gauge, and the lower the gauge, the better the sound, with diminishing[...]

NOTE: MartinLogan recommends using 5 wall anchors to secure each F resco to a wall. During the installation, if any of the screw/wall anchor positions are over a stud, it is recommended to screw directly into the stud. NOTE: T o assure that your F resco is safely wall mounted, these instructions must be carefully followed. Study them thoroughly bef[...]

6 Mounting the Fresco On A Wall or Ceiling NOTE: F resco’s bracket assembly consists of two main parts: the wall bracket (attaches to the wall) and the cabinet bracket (attaches to the F resco). When correctly configured the wall and cabinet brackets should each have one pin installed—the wall bracket with an upward pointing pin in the upper hi[...]

Mounting the Fresco On A Wall or Ceiling 7 Changing the Direction of Rotation Figure 7. Changing the direction of rotation—step 2.[...]

8 Mounting the Fresco On A Wall or Ceiling Required hardware (included): (6) M4 screws Required tools (included): 2.5mm Allen tool 1 Prepare a flat surface with padding and sheets to pro- tect the speaker as you work on it. Remove the F resco's grill cloth and carefully place the F resco face down on the work surface, using books or pieces of [...]

Required hardware (included): (5) wall anchors (5) 1" Phillips head wood screws Required tools (included): 6mm Allen tool Required tools (not included): Level Electric drill and 1 / 4 " and 1 / 8 " drill bits Phillips screwdriver 1 Hold the F resco at the desired location. Examine the mount- ing location to assure that the wall is fr[...]

10 Mounting the Fresco On A Wall or Ceiling NOTE: F igures 19–24 illustrate the F resco mounted in 4 different configurations. 3 Mark your wall with the center point for the wall bracket (see figure 19). 4 Using a level, square the wall bracket and hold it flush against the wall with the wall bracket's center hole over the point you just mar[...]

Mounting the Fresco On A Wall or Ceiling 11 5 Set the wall bracket aside. Using a 1 / 8 " bit, drill a pilot hole at all five points marked in the previous steps. If a pilot hole hits a stud during this step, DO NO T WIDEN that pilot hole or install a wall anchor at that location. If a pilot hole does not hit a stud , use a 1 / 4 " bit to[...]

9 Place the F resco onto the wall bracket and carefully slide the F resco into place (see figure 23). 10 Using a 6mm Allen tool, attach a washer and cap nut onto each pin. Do not fully tighten the cap nuts (see figure 23). 11 Make the signal connections from the amplifier (see ‘ Operation ’, pages 4). 12 Rotate the F resco to point at the liste[...]

H OME T HEA TER Home Theater 13 Figure 26. F resco loudspeakers as front, center and surround (effects) channels. Grotto subwoofers as 0.1 (effects) channel. It had long been the practice of stereo buffs to connect their television to a stereo system. The advantage was the use of the larger speakers and more powerful amplifier of the stereo system.[...]

14 ATF (Advanced Thin Film) AT F ( A DV ANCED T HIN F ILM ) A TF Operation The MartinLogan A TF transducer consists of a micro-thin, low-mass Kaladex diaphragm with an ultra-light, etched conductive aluminum surface suspended between two high field strength neodymium super magnet arrays (see figure 27). When an electrical current (music signal) pas[...]

Push-Pull Operation = Ideal Linearity Linearity is another factor contributing to a loudspeaker's ability to achieve ultimate clarity , detail and resolution. By positioning neodymium magnet arrays in a push-pull con- figuration, MartinLogan A TF transducer technology maintains uniform diaphragm control, regardless of position as it traverses [...]

16 Frequently Asked Questions and Troubleshooting F REQUENTL Y A SKED Q UESTIONS AND T ROUBLESHOOTING How do I clean my speakers? Just use a dust free cloth or a soft brush to remove the dust from your speakers. W e recommend a specialty cloth (available at the Xtatic shop at www .martinlogan.com) that cleans your speakers better than anything else[...]

System Frequency R esponse 75–20,000 Hz ± 3 dB Sensitivity 90 dB/2.83 volts/meter Impedance 5 ohms Crossover Frequency 500, 3200 Hz Components Air core coils, metal film and low dissipation electrolytic capacitors W oofer T ype T wo 4” (10.2cm) magnetically shielded high rigidity alu- minum cone with extended throw drive assembly , non-resonan[...]

AC. Abbreviation for alternating current. Active crossover . Uses active devices (transistors, ICs, tubes) and some form of power supply to operate. Amplitude. The extreme range of a signal. Usually mea- sured from the average to the extreme. Arc. The visible sparks generated by an electrical discharge. AT F . The abbreviation for advanced thin fil[...]

Inductance. The property of an electrical circuit by which a varying current in it produces a varying magnetic field that introduces voltages in the same circuit or in a nearby circuit. It is measured in henrys. Inductor . A device designed primarily to introduce inductance into an electrical circuit. Sometimes called a choke or coil. Linearity . T[...]

2101 Delaware Street, Lawrence, K ansas 66046, USA tel 785.749.0133 fax 785.749.5320 www .martinlogan.com M ART I N L OGA N the loudspeaker technology company ©2003 MartinLogan. All rights reserved. Rev . #052803 ®[...]