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Instruction Manual
Model T70.1 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 T70.1 PBM MODEL T70.1 PBM High Performance Powered Subwoofer Congratulations on your purchase of an Atlantic Technology T70.1 PBM powered subwoofer. With proper care, your new subwoofer will provide many years of trouble-free performance. The T70.1 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 25Hz, with a peak SPL of 103dB (1500 cubic foot space). The built-in proprietar
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Atlantic Technology ® Important Note: If you are using a surround receiver/processor that includes its own filtered subwoofer output we recommend that you set the crossover switch on the T70.1 PBM to Bypass. l Two line inputs, two line outputs The outputs allow daisy chaining of multiple subwoofers, or can act as a return path back to the processor. l Two high level inputs, two high level outputs These let you connect the subwoofer to your amplifier using the amplifier’s speaker outputs. The spe
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Model T70.1 PBM l A Phase Invert switch (Normal/Invert) This switch allows precise acoustic matching with speaker systems whose output may be phase reversed. This switch also allows you to compensate for unusual room acoustics that occur when a woofer is physically separated from the midrange/high frequency units. Be sure to try the Phase switch in both positions when you set up the T70.1 PBM. Even if you just change the built-in crossover settings it’s a good idea to try the Phase switch in bot
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Atlantic Technology ® Example 1: Subwoofer Receiver/Amplifier/Processor Single Subwoofer Optional Second Subwoofer Line Out/ Low Level In When using this connection method, please see the Important Note on page 3. Example 2: Preamp Line Receiver/Amplifier/Processor Single Subwoofer Out/Low Level In for 1 Subwoofer LEFT RIGHT Option 1 MAIN IN This arrangement is for owners of PRE OUT stereo receivers/ amplifiers with Preamp outputs. Y-adapters If your receiver/ amplifier uses jumper links be- twe
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Model T70.1 PBM Example 3: Preamp Line Receiver/Amplifier/Processor Right Subwoofer Left Subwoofer Out/Low Level In for Stereo Subwoofers Note that the L/MONO input is used on both sub- woofers. Instead of Y-adapters, you may also use the outputs to con- nect back to the Main Inputs as Y-adapters shown in Option 2 of Example 2. Example 4: Speaker Out/ Right Speaker Subwoofer Left Speaker High Level In for 1 Subwoofer This is the most common method for connecting a subwoofer to a system without a
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Atlantic Technology ® Example 5: Speaker Out/ Right Speaker Right Subwoofer Left Subwoofer Left Speaker High Level In for Stereo Subwoofers This is the most common method for connecting 2 subwoofers to a system without a dedicated sub- woofer line out or Preamp outputs. Note that the L/MONO High Level input is used on both left and right subwoofers. Receiver/Amplifier You can connect to the High-level inputs by removing 1/2" of insulation from each wire end, twisting the strands of wire together
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Model T70.1 PBM with no signal detected from the rest of the system, the amplifier will shut itself off and go into standby mode. Power consumption in the standby mode is negligible. Standby operation can be completely bypassed by placing the “Auto” switch in the “On” position. In this mode, the subwoofer will be controlled by the position of the Main Power switch. Placement and Operation Generally speaking, the best location for your new Subwoofer will be in the front of the room, in or close t
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Atlantic Technology ® Figure 3: Assymmetrical arrangement for 2 subwoofers in a home theater, for example, one closer to a corner than the other. Subwoofer Tuning Using the Variable Level Control Assuming that you do not have access to a Sound Pressure Level meter for system set up, start your listening with the subwoofer crossover control set at approximately two-thirds of its range (which corresponds to approximately 100Hz), the phase switch set to normal, and the variable level control set to
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Model T70.1 PBM Higher crossover frequencies pass more bass but can sound boomy and may be more easily localized to the subwoofer. Higher crossover frequencies may be suitable, however, when using very small satellites that have no real low frequency performance. Settings lower than 90Hz should be employed if you are using full range speakers that have extended bass response. This way, the subwoofer will only reproduce the very lowest bass frequencies that are in the range where the large main s
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Atlantic Technology ® Model T70.1 PBM Specifications Type/Features Powered Subwoofer with Sealed Acoustic-Suspension Enclosure 24 dB/Octave variable crossover Line-level stereo inputs and outputs High-level stereo inputs and outputs Absolute phase invert switch Auto signal sensing on/off Driver (1) 10" long-throw woofer, 2", 4-layer vented voice coil, vented motor system Amplifier Power 125 Watts RMS discrete linear Class A/B power amplifier Amplifier Distortion <0.025% Frequency Response 25-150
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Model T70.1 PBM For Future Reference Record your speaker serial number and date of purchase here: Model Number Serial Number Date of Purchase The serial number is found on the back of the speaker near the connecting terminals. 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 wi
