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APOGEE ACOUSTICS Full Range Ribbon Speaker System Owner's Manual And Assembly Instructions

Full range ribbon speaker system
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POGEE
COUSTICS INC.
APOGEE FULL RANGE RIBBON SPEAKER SYSTEM
OWNER'S MANUAL
AND
ASSEMBLY INSTRUCTIONS

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Summary of Contents for APOGEE ACOUSTICS Full Range Ribbon Speaker System

  • Page 1 POGEE COUSTICS INC. APOGEE FULL RANGE RIBBON SPEAKER SYSTEM OWNER'S MANUAL ASSEMBLY INSTRUCTIONS...
  • Page 2 Apogee Acoustics has resolved fundamental problems inherent to ribbon acoustical transducer design. For the first time clarity, speed and power are provided over the entire music spectrum with a full range ribbon speaker system. The combined tweeter, midrange and woofer ribbon coupled with APOGEE's own seamless crossover provide:...
  • Page 3 APOGEE ACOUSTICS' FULL RANGE RIBBON SPEAKER SYSTEM takes great pride in announcing a revolutionary APOGEE ACOUSTICS development in loudspeaker design; the first full range ribbon speaker system. Previous sound system's have employed ribbon-technology to provide outstanding performance in the high frequency, tweeter range.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS Pages PREPARATION (Steps 1-6) ---------------------------1-3 ASSEMBLY (Steps 7-11) -----------------------------3-5 PLACEMENT (Steps 12-14) ---------------------------5 BIAMP OPERATION -----------------------------------6 SPEAKER CONNECTION FOR BI-AMP ---------------------7 APOGEE PASSIVE CROSSOVER --------------------------8 AMPLIFIER IMPEDENCE LOADING TABLE CX-1 ------------9 SPEAKER ADJUSTMENTS -------------------------------10 SPECIFICATIONS ------------------------------------11 LOW IMPEDENCE DIRECT DRIVE ------------------------12 DIRECT DRIVE CONNECTIONS --------------------------13 DIRECT DRIVE RETROFIT PROCEDURE -------------------14 FIGURE 1 - Preassembly positioning ----------------15...

  • Page 5: Preparation (Steps 1-6)

    SPEAKER SET-UP The APOGEE speakers' performance is affected by the quality and compatibility of the front end equipment, turntable, cartridge, electronics, connections, room acoustics and the placement within the room. Care in selection of compatible equipment and placement of the speakers within the room will be very rewarding in terms of the sonic quality of your music system.
  • Page 6 NOT allow any object to touch the ribbons!! CAUTION - USE CARE - DO Unpack outer midrange tweeter-left, MRT-L, and MRT-R and place the outer boxes in position and B as shown in 1. During FIG. the removal of the inner containers do not rotate the container (lift straight out).
  • Page 7 Place the right midrange tweeter, MRT-R on boxes A and B. (see FIG. 2). The bottom of the MRT-R should be toward speaker position. a) Remove the white foam end caps. b) Remove top and bottom corrugations. c) Do not rotate MRT during this procedure. Carefully move the midrange tweeter toward the woofer until they butt.
  • Page 8 Attach base plate to woofer. a) Use the T-Handle wrench and 1/2" long 1/4-20 Flat Head Socket Screws, and secure base plate to woofer of speaker using 8 screws. The base plate is oriented as shown in FIG. 3 and 4 with the bottom of the base plate seen from the right speaker position.

  • Page 9: Placement (Steps 12-14)

    (12) Placing speaker upright. This procedure requires two people with clean hands. The stronger person should be positioned to lift the top section of the mid range tweeter while the other person should be positioned to lift the top section of the suede covered ear. A rubber mat should be placed between the floor and the front edge of the base plate (see FIG.

  • Page 10: Biamp Operation

    BIAMP Operation 1. CONNECT crossover between Pre Amp and Power Amps. 2. For APOGEE crossover go to Step 3. For other manufacturers follow instruction with unit. Note the woofer/midrange crossover frequency is 400 Hz and the slope is 6db/octave. 3. Connect Preamp Output to crossover input. Connect Lo output to woofer Amp input and Hi output to MRT Amp input.

  • Page 11: Speaker Connection For Bi-Amp

    SPEAKER CONNECTIONS FOR BI AMP Connect the woofer cables to the woofer binding posts of the transformer box. Blue cable to blue binding post and black cable to black binding post. Connect the MR cables to the MR binding posts. White cable to white post and black cable to black post.

  • Page 12: Apogee Passive Crossover

    APOGEE PASSIVE CROSSOVER INTRODUCTION The Apogee passive crossover is designed to provide the electrical separation of woofer and midrange-tweeter signals. This is accomplished at signal levels between the pre-amplifier and power amplifiers in a manner to provide the most coherent and musically accurate result. This passive approach requires selection of loading resistors to provide the ultimate performance.

  • Page 13: Amplifier Impedence Loading Table

    TABLE CX -1 Load Amplifier Resistor Amplifier Impedence RHI & RLO Spectral DMA - 100 NONE Perreau 2150 NONE ML-3 Krell (ALL MODELS) 18.2K Bryston 4B 12.4K ML-9 12.4K D-90 12.4K Threshold 11.5K ML-2 100K 11.0K Quicksilver 200K 10.5K (Page 9)

  • Page 14: Speaker Adjustments

    SPEAKER ADJUSTMENTS The performance of the Apogee Ribbon Speaker will respond to adjustments that can be made in three separate ways. The first way that adjustments may be made is by speaker position within the room. This is room dependant and primarily affects the openness and correctness of the sound image.

  • Page 15: Specifications

    SPECIFICATIONS FULL RANGE RIBBON SPEAKER Three element system - Woofer - Midrange – Tweeter Frequency response - below 25 - 30 kHz Sound Pressure Level: 115 dB at 4 meter listening position in a 14 by 27 foot room utilizing 100 watt amplifiers, bi-amped.

  • Page 16: Low Impedence Direct Drive

    LOW IMPEDANCE DIRECT DRIVE Introduction & Description The APOGEE Acoustics Direct Drive is an alternate embodiment of the speaker. It is intended to take advantage of certain low power Class A Amplifiers with exceptional sonic merits, and still provide adequate dynamic range for most music.

  • Page 17: Direct Drive Connections

    (page13)

  • Page 18: Direct Drive Retrofit Procedure

    DIRECT DRIVE RETROFIT PROCEDURE The following assembly steps are to be done prior to hookup of the direct drive on those systems being retrofitted from the standard 4 OHM speaker: Measure each midrange cable and mark at 10½” with a black magic marker.
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