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Instruction Manual
Model 172 PBM
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 172 PBM MODEL 172 PBM High Performance Powered Subwoofer Congratulations on your purchase of an Atlantic Technology 172 PBM powered subwoofer. With proper care, your new subwoofer will provide many years of trouble-free performance. The 172 PBM is capable of delivering very high output levels and wide dynamic range. When properly placed it will provide smooth in-room bass response down to approximately 20 Hz, with a peak SPL of 108dB (1800 cubic foot space). The built-in proprietary high-
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Atlantic Technology ® A useful in room working frequency range of 20Hz to 150Hz TM A unique Dual Diversity Crossover (DDC) system with an adjustable (50Hz to 150Hz) 12dB per octave low-pass crossover, and a fixed 24dB per octave “voice filter” at 180Hz. This sophisticated crossover’s upper end roll-off slope is an extremely steep 12dB + 24dB per octave, totaling 36dB per octave above 180Hz. It allows for exceptional integration with most any brand or type of speaker on the market. We have de
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Model 172 PBM IMPORTANT NOTE - Only if you are NOT using the complete System 170: If you are using a surround receiver/processor that includes its own filtered subwoofer output and ultra-compact satellites, we strongly recommend that you connect the 172 PBM to your system using the high level (speaker) inputs. This is because most receiver/processor internal crossovers are 12dB per octave, which isn’t steep enough for use with the higher crossover levels required for ultra-compact satellites. In
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Atlantic Technology ® Example 1: Receiver/Amplifier/Processor Subwoofer Line Out/ Low Level In Sub Woofer Out Before using this connection method, please see the Important Note on page 4. LOW LOW LEVEL LEVEL THRU IN THRU IN L/ L/ MONO MONO IN IN R R HIGH HIGH LEVEL LEVEL 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 LOW LEVEL LR This arrangement THRU IN Pre Out is for owners of L/ MONO
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Model 172 PBM Example 3: Preamp Line Receiver/Amplifier/Processor Out/Low Level In for Y-adapters LR 2 Subwoofers Pre Out Note that the Main In L/MONO input is used on both sub- woofers. Instead of Y-adapters, you may also use the LOW LOW THRU outputs to LEVEL LEVEL THRU IN THRU IN connect back to L/ L/ MONO MONO the Main Inputs as IN IN shown in Option R R HIGH HIGH 2 of Example 2. LEVEL LEVEL Left Sub Woofer Right Sub Woofer Example 4: Speaker Out/ Receiver/Amplifier High Level In for 1 Subwoo
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Atlantic Technology ® Example 5: Speaker Out/ Receiver/Amplifier High Level In for 2 Subwoofers Main Speakers This is the recom- mended method for connecting the 172 PBM to a Left Right discrete 5.1 chan- nel receiver or amplifier. Please see the Important Note on page 4. You can also use LOW LOW LEVEL LEVEL the speaker level THRU IN THRU IN THRU outputs. L/ L/ MONO MONO Note that the IN IN L/MONO High R R HIGH HIGH Level input is used LEVEL LEVEL on both left and right subwoofers. Left Front Sp
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Model 172 PBM Note: Due to the very close placement of the High-level connectors, the most practical connectors to use are “double banana plugs” (North America only) available from most electronic supply stores. You can connect to the High-level inputs by using a variety of 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. We recommend that you check your local
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Atlantic Technology ® Figure 3: Typical arrange- ment for a single Start here subwoofer in a Less Bass home theater. More Bass Subwoofer Tuning Using the Variable Level Control Start your listening with the subwoofer Lo-pass control set at approximately 1/3 of its range (which corresponds to 90Hz), the phase switch set to normal, and the front panel variable level control (Figure 5) set to the bottom of its range (fully counterclockwise facing the front of the woofer). Play some music that you k
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Atlantic Technology ® Figure 3: Typical arrange- ment for a single Start here subwoofer in a Less Bass home theater. More Bass Subwoofer Tuning Using the Variable Level Control Start your listening with the subwoofer Lo-pass control set at approximately 1/3 of its range (which corresponds to 90Hz), the phase switch set to normal, and the front panel variable level control (Figure 5) set to the bottom of its range (fully counterclockwise facing the front of the woofer). Play some music that you k
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Model 172 PBM Figure 5: Assymmetrical arrangement for 2 subwoofers in a home theater, for example, one closer to a corner than the other. Using the Subwoofer Lo-Pass Control When used with the complete System 170, the 172 PBM Lo-pass control should be set at 1/3 of its range to begin with. The goal is to optimize the performance of the system by ensuring that the sub- woofer and satellites produce a cohesive and well integrated sound “picture.” The low frequency response of the System 170 satell
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Model 172 PBM Model 172 PBM Specifications Type/Features Powered Subwoofer with Sealed Acoustic-Suspension Enclosure Variable 50-150 Hz, 12 dB/Octave low pass output Fixed 24 dB/Octave 180 Hz Low-Pass Filter Dual Diversity Crossover System (DDC)™ Driver (1) 12" long-throw woofer, 2”, 4 layer vented aluminum voice coil, vented motor system Amplifier Power 150 Watts RMS all discrete linear Class G power amplifier with dual power supplies Amplifier Distortion <0.025% Frequency Response 20-180 Hz ±3
