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Martin Audio C4.8T manual

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Table of contents for the manual

  • Page 1

    The Martin Experience C4.8T , C.6.8T , C8.1T User ’s Guide All material © 2007. Martin Audio Ltd. Subject to change without notice.[...]

  • Page 2

    All material © 2007. Martin Audio Ltd. Subject to change without notice. Installation Guide Martin Audio Ceiling Lou dspeakers C4.8T, C6.8T, C8.1T Description Martin Audio C4.8T, C6.8T a nd C8.1T ceiling loudspeakers a re all 2-way designs usi ng soft dome tweeters for t he widest dispersion and ex cellent off-axis performance. All models have per[...]

  • Page 3

    A steel cover plate with a clamped cable entr y protects the input connector against fire in accordance with BS 5839: Part 8, Section 10.3 . All models are fitted with a thermal fuse to prevent the loudspeaker from short circuiting and disabling other loudspeakers in its group under the influence of fire . Model Drivers Dispersion C4.8T 4 ” (100m[...]

  • Page 4

    All material © 2007. Martin Audio Ltd. Subject to change without notice. Note that all models are protec ted with a PTC (positive temperat ure coefficient) device and will quieten, if overdriven. T he PTC device will reset itself once the signal is reduced to a more sensible level. Installation Ceiling loudspeaker with C-bracket and tile rails (fo[...]

  • Page 5

    Suitable hole cutting methods will depend on the ceiling structure, local conditions, personnel, equipment etc and must be determined by the installer. Step 2 Place a tile rai l either side of the ceiling hole and clip the C - bracket over the upright edges of the tile rails. Note the rail orientations – outwards for the C4.8T and C6.8T, inwards [...]

  • Page 6

    Note that the tile rail ends may be reshaped to suit your particular ceiling structure. Tile rail end Step 3 Screw the C - bracket to the tile rails with the screws provided. C - bracket screwed to tile rail S tep 4 Place the loudspeaker into the ceiling hole (and through the centre of the C - bracket ) from the underside . Align the loudspeaker so[...]

  • Page 7

    2 - way ceiling loudspeaker orientation Make sure that the C4.8T and C6.8T swivel - tabs do not coincide with the C - bracket gap. Loudspeaker in place. N ote swivel - tab position s before fully tightening I t is permissible for one of the five C8.1T swivel - tabs to coincide with a C - bracket gap in order to maintain driver orientation. All mate[...]

  • Page 8

    Step 5 Screw the loudspeaker to the C - bracket by tight ening the screws from the underside of the baffle . Tightening the s wivel - tab screw s Step 6 Connect your pre - installed amplifier cable to the ceiling loudspeaker. Amplifier power input is via a 4 - pin rising clamp plug providing + and – inputs and + and – Loop Through connections a[...]

  • Page 9

    The input and loop connectors must be fireproofed using the steel cover and screws provided. This cover has a 0.75 ” (19mm) knockout and a clamped cable entry. Ceiling loudspeaker rear can – fireproof steel cover fitted Step 7 Fit a steel safety wire between its rear can safety tag and a suitable overhead supporting structure to provide backup [...]

  • Page 10

    Step 8 Push the grille into position ensuring that the grille is properly located in the baffle slots. Locate grille tags into slots Your Martin Audio ceiling loudspeaker is now ready for u se. Warranty Martin Audio ceiling loudspeaker products are warranted against manufacturing defects in materials or craftsmanship over a period of 5 years from t[...]