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Instruction Manual
®
Model 272 PBM THX THX Select Certified
High Performance Powered Subwoofer
Atlantic Technology ®
I NNOVATIVE H OME T HEATER
343 Vanderbilt Avenue Norwood, MA 02062 (781) 762-6300 www.atlantictechnology.com
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Model 272 PBM THX Atlantic Technology ® MODEL 272 PBM THX High Performance THX Select Certified Powered Subwoofer Congratulations on your purchase of an Atlantic Technology 272 PBM THX powered subwoofer. A well designed subwoofer, properly integrated into your system will enhance your listening pleasure dramatically by providing the bass foundation upon which most music and special effects are built. The 272 PBM THX is capable of delivering very high output levels and wide dynamic range. When p
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Model 272 PBM THX Atlantic Technology ® l A linear power high current Class A/B amplifier conservatively rated at 225 watts RMS This advanced amplifier is a fully discrete design utilizing audiophile grade component parts including a custom-wound, low-hum Torroidal transformer. The output stage is capable of very high current delivery for exceptional driver control. As a custom designed amplifier it has been precision matched and equalized to the 12" driver. Together they deliver powerful, contr
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Model 272 PBM THX Atlantic Technology ® Figure 1: Amplifier panel and controls for Model 272 PBM THX Connecting Your Subwoofer The Atlantic Technology System 272 PBM THX Powered Subwoofer is simple to hook up, offering several connection methods for maximum flexibility. Study the system diagrams starting on page 6. Once you have found the example which most closely matches your system, hook up your subwoofer(s) as shown in that diagram. Warning: To prevent risk of electrical shock or damage to y
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Model 272 PBM THX Atlantic Technology ® Example 1: Subwoofer Receiver/Amplifier/Processor Line Out/ Low Level In Before using this Sub Woofer Out connection method, please see the Note on page 3. HI PASS LOW LEVEL HI PASS LOW LEVEL OUT THRU IN OUT THRU IN L/MONO L/MONO RIGHT RIGHT Single Sub Woofer Optional Second Sub Woofer Example 2: Preamp Line Out/Low Receiver/Amplifier/Processor Single Sub Woofer Level In for Option 1 1 Subwoofer HI PASS LOW LEVEL OUT THRU IN This arrangement LR L/MONO is f
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Model 272 PBM THX Atlantic Technology ® Example 3: Preamp Line Receiver/Amplifier/Processor Out/Low Level Y-adapters In for LR 2 Subwoofers Pre Out Note that the Main In L/MONO input is used on both sub- woofers. Instead of Y-adapters, you HI PASS LOW LEVEL HI PASS LOW LEVEL OUT THRU IN OUT THRU IN may also use the L/MONO L/MONO THRU outputs to RIGHT RIGHT connect back to the Main Inputs as shown in Option Left Sub Woofer Right Sub Woofer 2 of Example 2. Example 4: Preamp Line Receiver/Amplifier
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Model 272 PBM THX Atlantic Technology ® Example 5: Speaker Out/ Receiver/Amplifier High Level In for 1 Subwoofer Main Speakers This is the recommended method for Left Right connecting the 272 PBM THX to a discrete 5.1 channel. Please HI PASS LOW LEVEL OUT THRU IN the Note on L/MONO page 3. RIGHT L/MONO HI LEVEL INPUT RIGHT Left Front Speaker Sub Woofer Right Front Speaker Example 6: Speaker Out/ Receiver/Amplifier High Level In for 2 Subwoofers Main Speakers This is the recom- mended method for
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Model 272 PBM THX Atlantic Technology ® Using the Low level Thruput If desired, you can run a low level stereo signal through the 272 PBM THX and out to another unit. This way you can add an additional subwoofer with minimal additional wiring. The signal that comes out of the Thruput jacks is identical to the input signal. High Level Connection Alternately, you may use the high level (speaker) inputs. We recommend that you connect your new 272 PBM THX Powered Subwoofer(s) using high quality wire
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Model 272 PBM THX Atlantic Technology ® Helpful Hint: A particularly useful experiment is to place the subwoofer right at the prime listening position (move your couch or chair out of the way and put the sub in its place). Then play something with lots of good bass (preferably music), and walk around the room, listening to the subwoofer’s response. When you locate an area that has ample amounts of well defined bass you’ve found a good potential place to locate the sub. System Set Up Figure 3: Wh
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Model 272 PBM THX Atlantic Technology ® How Much is Enough? Sometimes people prefer more bass impact for movies than sounds natural when reproducing music. You may wish to determine both a video level and an audio level if you find yourself falling into this camp. Remember however, the most common error people make when setting up their system is to play the subwoofer (and surrounds) too loudly. Of course, the Home Theater Police will not arrest you for this act. But should you desire the most a
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Model 272 PBM THX Atlantic Technology ® A Word About Bass, Center Channel Modes, and System Set Up Many surround processors and receivers feature a “Wide” and “Normal” mode for the center channel speaker. Atlantic Technology recommends that the center channel be operated in the “Normal” mode when using a powered subwoofer. The center channel speaker will sound more dynamic and the intelligibility of the system will generally be improved when in the “Normal” mode. With discrete digital “5.1” chan
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Model 272 PBM THX Atlantic Technology ® Model 272 PBM THX Specifications Type/Features Powered subwoofer, sealed enclosure All discrete linear Calss A/B power amplifier w/ dual power 2", four layer vented aluminum voice coil, vented motor Switched 55, 80, 100, 140Hz bypass, 18dB/octave low pass output Variable low level stereo inputs and thruputs, low level output High level stereo inputs and thruputs w/5-way, gold-plated binding posts Absolute phase invert switch Auto signal sensing on/off/bypa
