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Apogee APL-10 Manual

Self-powered concert subwoofer system
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APL-10, APL-12, & APL-SB
SELF-POWERED CONCERT
SUBWOOFER SYSTEM MANUAL
© 2003 Apogee Sound International, LLC
Specifications subject to change without notice.
A 42-0835 / B 55-0040-01C
Printed in U.S.A.
0308

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  • Page 1 APL-10, APL-12, & APL-SB SELF-POWERED CONCERT SUBWOOFER SYSTEM MANUAL © 2003 Apogee Sound International, LLC Specifications subject to change without notice. A 42-0835 / B 55-0040-01C Printed in U.S.A. 0308...
  • Page 2 Notice Every effort was made to ensure that the information in this guide was complete and accurate at the time of printing. However, information is subject to change. IMPORTANT SAFETY INFORMATION WARNING: To Reduce The Risk of Fire Or Electric Shock, Do Not Expose This Apparatus To Rain Or Moisture.

  • Page 3: Table Of Contents

    Signal Processing........19 Using the APL-10, -12, and -SB ..... . . 21 Troubleshooting &...

  • Page 4: Precautions & Safety Notes

    • Do not install the speaker in wet or humid locations without using weath- er protection equipment from Apogee Sound. • Do not allow water or any foreign object to get inside the loudspeaker. Do not put objects containing liquid on, or near, the unit.
  • Page 5 • Ce haut-parleur contient des circuits haute tension présentant un danger. Ne jamais essayer de le démonter. Il n’y a aucun composant qui puisse être réparé par l’utilisateur.Toutes les reparations doivent être effectuées par du personnel qualifié et agree par le constructeur. Deutsch •...
  • Page 6 • No instale el altoparlante en lugares donde haya agua o humedad excesiva. • No deje que en el altoparlante entre agua ni ningún objeto extraño. No ponga objetos con líquidos encima de la unidad ni cerca de ella. • Para reducir el riesgo de sobrecalentamiento, no exponga la inidad a los rayos directos del sol ni la instale cerca de artefactos que emiten calor, como estufas o cocinas.

  • Page 7: Introduction

    The APL-10,APL-12, and APL-SB are large format, high-powered subwoofers, capable of providing clean, undistorted low frequency sound at very high out- put levels.They form powerful arrays when used in multiples with like units.
  • Page 8 • An integrated speaker system is able to use current sensors as well as volt- age sensors (VIProtect ) to provide information to the processor’s protec- ™ tion circuits. The result is more accurate control of the drivers’ mechanical and thermal limits, and therefore better protection under abusive conditions. •...

  • Page 9: Ac Power Requirements

    Figure 1 The AC PowerCon cable assembly provided with your APL-10, -12, or -SB is equipped with an AC mains plug compatible with the power service in the country of sale. If you need to change this plug or to construct special pur- pose power cables, the wiring must follow the convention shown in Figure #2.
  • Page 10 GROUND PIN OF THE AC POWER PLUG. (2) Voltage Range The APL-10, -12, and -SB are manufactured for nominal line voltages of either 120V AC or 230V AC. NOTE:The 120V AC model is suitable for use at 100V AC with only a small reduction in power capability.
  • Page 11 All power amplifiers require sufficient current for proper operation and the amplifiers designed into Apogee powered loudspeakers are no exception. Chart #1 shows the required current for one APL-10, -12, or -SB at three standard international working voltages (120, 240, & 100V AC). Because cur-...
  • Page 12 Chart 2 applies to three-conductor portable cordage of the types S, SO, SP, SPT, SJ, and SJO, which are typically rated at a maximum operating tempera- ture of 140°F (60° C). (NOTE: Operating temperature is the heat generated within the cable from the voltage drop added to the ambient temperature.) Chart 2 covers ambient temperatures of 86°F (30°C), 104°F (40°C), &...
  • Page 13 POWER CABLE VOLTAGE DROP (IN PERCENTAGE OF NOMINAL VOLTAGE) #14 AWG, 120V AC #14 AWG, 240V AC Chart 3 Length in Feet Length in Feet 0.6% 1.2% 1.8% 2.4% 0.3% 0.6% 0.9% 1.2% 1.2% 2.4% 3.6% 4.9% 0.6% 1.2% 1.8% 2.4% 1.8% 3.6%...

  • Page 14: Audio Signals

    Audio Signals (1) Input Impedance and Level The APL-10, -12, and -SB were designed to receive a balanced-line signal on their 3-pin female XLR type connector. They are also equipped with a 3-pin Male XLR output connector, labeled “loop-through,” intended for the pur- pose of daisy-chaining multiple powered speakers together on a common sig- nal feed.These input and output connectors are hard-wired in parallel;...
  • Page 15 If by chance the APL-10, -12, or -SB is placed in an inaccessible loca- tion and the Phase Reverse Switch is in the opposite position from that...
  • Page 16 DC offset. It is designed to feed a +4 dBv (nominal) line-level input.The line driver in the APL-10, -12, and -SB is of an advanced design (Analog Devices SSM 2141) that can easily drive a load as low as 1000 ohms. This means that quite a few full-range speakers can be fed from this output simul- taneously.

  • Page 17: Amplifiers

    (2) Special Functions The APL-10, -12, and -SB are equipped with a SLEEP mode. After initial acti- vation, the system constantly seeks an input signal. If no signal is present for approximately 30 minutes, the SLEEP circuitry will shut down the main power supplies, the amplifier, and all but one section of the processor.When...

  • Page 18: Installation

    The APL-10, -12, and -SB require unimpeded air circulation in order to func- tion properly (this is especially important when multiple units are used in stacked and/or tight-pack configurations).

  • Page 19: Signal Processing

    Signal Processing (1) Basic Concept The APL-10, -12, and -SB use a highly-advanced signal processor contained entirely within the unit. The processor provides the functions of an asym- metrical electronic crossover (36 dB/octave low-pass and 24 dB/octave high- pass), fixed equalization to compensate for driver/enclosure anomalies, and advanced protective limiting circuits.
  • Page 20 A limiter LED is located on the rear panel of the APL-10, -12, and -SB, intend- ed to indicate the deployment of the limiters. It is not uncommon to see this LED illuminate regularly, such as on downbeats and crescendos.

  • Page 21: Using The Apl-10, -12, And -Sb

    The APL-10, -12, and -SB can be used in many ways and for many applica- tions. In its simplest form, one APL-10, -12, or -SB placed at each side of the stage will add dramatic low frequency impact to a typical full-range system in a club, church, or theatre.
  • Page 22 rear wall or ceiling (being careful not to restrict air flow to the heat exchang- er), or in a corner. When located by a wall (half space), power output will increase by 3 dB (see Figure 4) when compared to placement in a free-field environment (see Figure 5).When located at the junction of two walls (quarter space), power output will increase by 6 dB over that of a free-field environment (see Figure 6).
  • Page 23 Multiple units configured in a line will exhibit increased directionality in the axis of the line. For example, placing four or more APL-10, -12, or -SBs hor- izontally end-to-end narrows their horizontal coverage pattern without changing the vertical pattern (NOTE: dispersion is essentially omni-direc- tional for a single unit).
  • Page 24 APL-10, -12, and -SBs can also be combined in an L-format (See Figure 8). The L-format exhibits directional control in both axes, and is often the best choice for deploying a large number of speakers in sizeable venues. Figure 8 Finally, APL-10, -12, and -SBs can be configured into a block arrangement (See Figure 9).This arrangement also exhibits directional control in both axes, but...
  • Page 25 APL-10, -12, or -SB is off- set in depth, such as in front of, or behind, the full-range system.
  • Page 26 An easy way to determine the best phase relationship is to listen to a low- frequency source while standing in front of the system and have someone change the setting of the Phase Reverse Switch from normal to reverse while you listen.
  • Page 27 The APL-10 and -12 are equipped with four rigging points – two on the top and bottom of the APL-10 – and two on either side for the APL-12. The APL- SB is equipped with two rigging points – one on either side.These points are...
  • Page 28 An Aeroquip fitting can sustain a straight-line-of-force load of 5000 lbs. before failure.This means that if suspended from only two Aeroquip fittings, the APL-10, -12, or -SB will exhibit at least a 46:1 safety factor. However, like the nutplate,Aeroquip fittings de-rate rapidly as the load angle changes from straight to oblique.

  • Page 29: Troubleshooting & Field Repairs

    (7) Using the Built-in Mast Fitting Models APL-10, -12, and -SB are all equipped with a built-in stand fitting on their top surface. This fitting is designed to accept an adjustable mast, avail- able from Apogee.The adjustable mast threads into the fitting and provides a means of support for an Apogee full-range loudspeaker, such as the AE-3,AE- 4,AE-5, FH-1, FH-2,APL-500,APL-220, and others.The mast is equipped with...
  • Page 30 AC mains supply! The drivers in the APL-10, -12, and -SB can be changed in just a few minutes. To gain access, first remove the front protective grille with a Phillips screw- driver.
  • Page 31 After replacing the driver, power up the speaker system and play some pro- gram material through it before replacing the grille.Verify that the new driv- er is operating properly. If the system still exhibits problems, it may need additional service work. (3) Amplifier Removal &...

  • Page 32: Troubleshooting Chart

    • Check to be sure the input cable is properly mated. distorted and the limit light is NOT registering. • Listen to an alternate source with the same APL-10, -12, or -SB to determine if the source or the loudspeaker is malfunc- tioning.

  • Page 33: Amplifier Panel Details

    Amplifier panel of an Apogee APL Subwoofer MADE IN USA STATUS INPUT LOOP THRU HI-PASS POWER BREAKERS CAUTION HAZARDOUS VOLTAGE LIMIT MAY BE PRESENT PIN 2+ INSIDE. NO USER SERVICEABLE PARTS. SIGNAL REFER SERVICE TO QUALIFIED PERSONNEL SLEEP PIN 3+ POWER ®...

  • Page 34: Specifications

    44.75" W X 30" H X 22.5" D 30" W X 22.5" H X 21" D Dimensions (813 X 572 X 610mm) (1137 X 762 X 572mm) (762 X 572 X 533mm) Dual Apogee 15" with Dual Apogee 18" with Single Apogee 18" with Drivers ® ®...

  • Page 39: Limited Warranty

    Tel: 707-778-8887 Fax: 707-778-6923 The salespersons or agents of Apogee Sound International, or its dealers, are not authorized to make any representations, promises, or warranties regarding products on behalf of Apogee Sound International or in any manner obligate Apogee Sound International to the purchaser.
  • Page 40 2180 S. McDowell Blvd., Petaluma, CA 94954, USA Tel. 707-778-8887, Fax: 707-778-6923 www.apogee-sound.com...

This manual is also suitable for:

Apl-12Apl-sb

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