Models 222 PBM 262 PBM 352 PBM THX ATECHNOLOGY tlantic Model 222 PBM Model 262 PBM Instruction Manual Model 352 PBM THX High Performance Subwoofer Systems Models 222 PBM, 262 PBM and 352 PBM THX tlantic ATECHNOLOGY Contents Lucasfilm Home THX ......................................................................................................................... 3 Features ............................................................................................................................................... 4 Connection ......................................................................................................................................... 7 Low-Level Connection ............................................................................................................... 7 High-Level Connection .............................................................................................................. 7 Example 1: Subwoofer Line Out/Low Level In .................................................................. 8 Example 2: Preamp Line Out/Low Level In for 1 Subwoofer ............................................ 8 Example 3: Preamp Line Out/Low Level In for 2 Subwoofers .......................................... 9 Example 4: Speaker Out/High Level In for 1 Subwoofer ................................................... 9 Example 5: Speaker Out/High Level In for 2 Subwoofers ............................................... 10 Example 6: Speaker Out/High Level In for 2 Subwoofers ............................................... 10 THX Example: THX Subwoofer Out/THX Input (Model 352 only) .............................. 11 Power Connection ............................................................................................................................ 11 Voltage Selection ...................................................................................................................... 12 Placement .......................................................................................................................................... 12 Home THX Subwoofer Applications: The 352 PBM THX ....................................................... 12 Operation .......................................................................................................................................... 14 The Phase Invert Mode ............................................................................................................. 14 A Word About Center Channel Modes .................................................................................... 14 Subwoofer Troubleshooting Guide .................................................................................................. 15 For Future Reference ......................................................................................................................... 15 Specifications .................................................................................................................................... 16 CAUTION: To reduce the risk of electric shock, do not remove the cover (or back). No user serviceable parts inside. Refer to qualified personnel. WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electrical shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating maintenance (servicing) instructions in the literature accompanying the appliance. 2 Models 222 PBM, 262 PBM and 352 PBM THX Models 222 PBM 262 PBM 352 PBM THX® Atlantic Technology tlantic ATECHNOLOGY High Performance Subwoofer Systems Congratulations on choosing an Atlantic Technology Powered Subwoofer. This manual covers the Atlantic Technology Models 222, 262 and 352 THX® Powered Subwoofer Systems. Our subwoofers feature a proprietary amplifier and special high excursion woofers designed to deliver very high output levels on a continuous basis. The sealed acoustic suspension cabinet configuration provides extended, deep bass in a compact, room-friendly design. This new generation of subwoofers utilizes a new advanced circuit design to control distortion and woofer over-excursion. The overload circuitry incorporates optical devices that isolate this circuit from the rest of the amplifier for optimum sound quality. Atlantic Technology Powered Subwoofers integrate easily with virtually all other brands of loudspeakers on the market. All inputs and outputs, both line level and high (speaker) level, are designed for optimum signal integrity. The premium quality gold plated connectors and all controls are clearly labeled and versatile in operation. The amplifiers have more than ample power and headroom to supply a high fidelity foundation to any audio or home theater system. Lucasfilm Home THX George Lucas and Lucasfilm, (creators of the Star Wars saga), originated and perfected Home THX, a strict set of standards and guidelines for home theaters, so that they may emulate the original dubbing stage. When properly followed, these guidelines address and correct the problems of overly bright or harsh soundtracks, unintelligible dialog, limited bass response, and poor localization of sounds. It is important to realize that THX is not a recording process or film sound format. All motion pictures will be reproduced as they were heard in the film studio dubbing stage through the Home THX System, no matter what delivery system is used. The 352 PBM THX will easily handle the full dynamic range and low frequency bandwidth of any existing or newly emerging surround sound technology (such as Dolby AC-3). The 352 PBM THX addresses the interface requirements and dynamic capabilities of the real world. It's combination of advanced amplification and high-excursion woofer delivers prodigious amounts of low frequency energy at high sound pressure levels with very little distortion. ® 3 Models 222 PBM, 262 PBM and 352 PBM THX tlantic ATECHNOLOGY Features Your Atlantic Technology Powered Subwoofer was engineered using the latest technology and finest components available. q q High excursion drivers in a sealed acoustic suspension cabinet Continuous power output conservatively rated at 125, 150 and 200 watts (Model 222, 262, and 352, respectively) Coupled with our highly efficient drivers, this is plenty of power for even the most dynamic music and effects you are likely to encounter. Discrete very high current output devices rated at 30 amps each The 352 PBM THX doubles up output devices for even higher current capability. Working frequency range from 20Hz to low pass filter setting up to 125Hz Continuously adjustable low-pass filter from 60Hz to 125Hz The slope of the low-pass filter is -24 dB/octave. This allows for flexible integration with most any brand or type of speaker on the market. Two line input and two passive line level outputs with gold RCA connectors The model 352PBM THX uses one line input as the THX input to comply with THX requirements. All speaker inputs and outputs are gold 5-way binding posts This is the ideal way to make connections without compromising signal integrity. All models employ a 12dB/octave subsonic filter for frequencies below 20Hz. Frequencies below 20Hz are inaudible and consume vast amounts of amplifier power. Filtering them out with a gradual slope maintains amplifier headroom while maintaining fidelity. Phase inverter toggle switch (0/180°) Allows matching with many systems whose output may be inverse phased. Woofer output level control Matches a wide range of input levels. Optical anti-clipping circuitry This is the lowest distortion type of circuit available. It has ideal linearity, works in real time and uses imperceptible time constant triggers (delays) so that its effect during operation, if needed, is virtually instaneous and inaudible. 75°C thermal protection Temperature at external surface of heatsink never goes above 70°C. The output devices are rated to operate safely at much higher temperatures. Auto power on/off function The 7-10 minute turn-off delay features a front panel mounted dual-color LED power indicator for power on and standby indication. 4 q q q q q q q q q q Models 222 PBM, 262 PBM and 352 PBM THX tlantic ATECHNOLOGY q IEC AC power socket Unit comes with a detachable power cord. You can easily replace this cord with one of another length or plug style. 120V or 240V AC operation Externally switchable with an external fuse socket. Heavy-duty rocker-type power switch. Design and construction meets all UL/CSA and European safety requirements Figure 1: Amplifier panel and controls for Models 222 and 262 (Model 222 shown) q q q 5 Models 222 PBM, 262 PBM and 352 PBM THX tlantic ATECHNOLOGY Figure 2: Amplifier panel and controls for Model 352 THX 6 Models 222 PBM, 262 PBM and 352 PBM THX tlantic ATECHNOLOGY Connection Atlantic Technology Powered Subwoofers are simple to hook up, offering several connection methods for maximum flexibility. Study the system diagrams starting on page 8. Once you have found the example which most closely matches your system, hook up your subwoofer(s) as shown in that diagram. Low-Level Connection For best performance, we suggest using the low-level (RCA style jacks) subwoofer line out or preamp outputs if your receiver/amplifier has them. Simply connect your subwoofer with high quality shielded cables as shown in the diagrams. High-Level Connection Alternately, you may use the high-level (speaker) inputs. Make sure to match the type and gauge speaker wire used to connect your main speakers. We recommend that you connect your subwoofer using high quality wire of 16 gauge or larger for lengths up to 25 feet. There are many manufacturers who specialize in speaker wire and interconnects suitable for your new system. We recommend that you consult your local audio/video specialist for more specific information. Warning: To prevent risk of electrical shock or damage to your equipment, always unplug all component AC cords before proceeding with speaker and component connections. You can connect your subwoofer by using spade lugs or "banana" connectors, or by removing 1/2" of insulation from each wire end, twisting the strands of wire together, placing the wire through one of the post holes and screwing down the nut tightly. Be certain that no stray wire strands are touching across the two terminals as this might damage your amplifier when you turn it on. It is important to observe polarity while making speaker connections: red (+) terminals on the amplifier to red (+) on the speaker, black (-) on the amplifier to black (-) on the speaker. Look carefully at the wires you are using and note that one of the wires in each pair is marked by either a different color, printing, ridges, or a thread intertwined with the wire strands. By convention, the marked wire is connected to the red (+) terminal. Figure 3: Speaker Wiring Terminals 7 Models 222 PBM, 262 PBM and 352 PBM THX tlantic ATECHNOLOGY Receiver/Amplifier Example 1: Subwoofer Line Out/Low Level In This is the most commonly used system connection for systems with Dolby Pro Logic receivers. LOW LEVEL INPUT L/MONO R IN Sub Woofer Out HI LEVEL INPUT L/MONO R IN LOW LEVEL INPUT L/MONO R IN HI LEVEL INPUT L/MONO R IN THRU THRU THRU THRU Single Sub Woofer Optional Second Sub Woofer Example 2: Preamp Line Out/Low Level In for 1 Subwoofer This arrangement is for owners of stereo receivers/ amplifiers with Preamp outputs. If your receiver/ amplifier uses jumper links between the Pre-out and Main In, then you must remove them and use option 1 or 2. If your receiver/ amplifier uses a switch instead of connectors, then use option 3. Receiver/Amplifier Left Sub Woofer LOW LEVEL INPUT L/MONO R HI LEVEL INPUT L/MONO R IN Option 1 L R Pre Out IN Y-adapters THRU Main In THRU Option 2 L R Pre Out LOW LEVEL INPUT L/MONO R IN HI LEVEL INPUT L/MONO R IN THRU Main In THRU Option 3 Pre Amp L R Internal External Pre Out LOW LEVEL INPUT L/MONO R IN HI LEVEL INPUT L/MONO R IN THRU Main In THRU 8 Models 222 PBM, 262 PBM and 352 PBM THX tlantic ATECHNOLOGY Receiver/Amplifier Example 3: Preamp Line Out/Low Level In for 2 Subwoofers Note that the L/MONO input is used on both left and right subwoofers. Instead of Y-adapters, you may also use the THRU outputs to connect back to the Main Inputs as shown in Option 2 of Example 2. Y-adapters L R Pre Out Main In LOW LEVEL INPUT L/MONO R IN HI LEVEL INPUT L/MONO R IN LOW LEVEL INPUT L/MONO R IN HI LEVEL INPUT L/MONO R IN THRU THRU THRU THRU Left Sub Woofer Right Sub Woofer Example 4: Speaker Out ...