Model 272 PBM THX
®
THX Select Certified
High Performance Powered Subwoofer
Atlantic Technology
I
N N O V A T I V E
H
O M E
T
H E A T E R
343 Vanderbilt Avenue Norwood, MA 02062 (781) 762-6300 www.atlantictechnology.com
Instr
uction Manual
Page 1: ...THX THXSelectCertified HighPerformancePoweredSubwoofer AtlanticTechnology I N N O V A T I V E H O M E T H E A T E R 343 Vanderbilt Avenue Norwood MA 02062 781 762 6300 www atlantictechnology com Instruction Manual ...
Page 2: ...al production of the film THX is intended to enhance every type of viewing and listening experience including the latest discrete multi channel digital formats Please note however that THX is not a separate surround format THX Select standards are based upon a room size of 2000 cubic feet L x W x H THX Ultra standards are based upon a room size of 3000 cubic feet This does not mean these component...
Page 3: ... the subwoofer to your amplifier using the amplifier s speaker outputs Once again you can daisy chain to another subwoofer using the unmodified signal that comes out of the thruput connectors A Phase Invert switch Normal Invert This switch allows precise acoustic matching with satellite speaker systems whose output may be phase reversed This switch also allows you to compensate for unusual room ac...
Page 4: ...s shown in that diagram 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 The last step in wiring your system should be plugging in the AC cords Low Level Connection We suggest using the low level RCA jack subwoofer line out or preamp output if your receiver processor has one Simply ...
Page 5: ... use option 1 or 2 If your receiver amplifier uses a switch instead of connectors then use option 3 Option 1 Option 3 Option 2 L MONO RIGHT LOW LEVEL HI PASS THRU OUT IN L MONO RIGHT LOW LEVEL HI PASS THRU OUT IN L MONO RIGHT LOW LEVEL HI PASS THRU OUT IN Single Sub Woofer Pre Out Main In L R Receiver Amplifier Processor Pre Out Main In L R Pre Out Main In L R Internal Pre Amp External Pre Out Mai...
Page 6: ...ass Out for 1 Subwoofer The line level Hi Pass outputs send audio signals above the Lo Pass filter setting to the main L and R power amplifier inputs This keeps the low frequen cies out of the left and right front speakers allowing the subwoofers to reproduce the bass frequencies Note These outputs are primarily intended for use in a two channel satellite subwoofer system where the left and right ...
Page 7: ...6 Speaker Out High Level In for 2 Subwoofers This is the recom mended method for connecting the 272 PBM THX to a discrete 5 1 channel receiver or amplifier Please see the Important Note on page 3 You can also use the speaker level THRU outputs Note that the L MONO High Level input is used on both left and right subwoofers Left Right Main Speakers Left Sub Woofer Right Sub Woofer Left Front Speaker...
Page 8: ...wined with the wire strands By convention the marked wire is connected to the red terminal Power Connection Connect the power cord to an AC outlet only after making all other connections to the subwoofer This will avoid any chance of accidentally activating the subwoofer while wiring Atlantic Technology does not recommend plugging the subwoofer into the switched outlet of an amplifier preamplifier...
Page 9: ...ld you have difficulty achieving the correct subwoofer volume this way or should your Processor Receiver not have a subwoofer level control you can use the 272 PBM s front mounted level control to make this adjustment If you decide not to use an SPL meter try to set all the speaker levels the same using the Test Tones Of course this will be much more difficult without the meter especially for the ...
Page 10: ...r Higher crossover frequencies may be suitable however when using very small satellites that have no real low frequency performance Settings lower than 80Hz should be employed if you are using larger 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 speakers begin to roll off It s general...
Page 11: ... useful in case you move or have to ship your subwoofer for any reason In any case save all packing materials until you are certain that the system has suffered no damage in shipment If you find such damage either visible or internal contact your dealer immediately for the proper return procedure Subwoofer Troubleshooting Guide Once your subwoofer is set up you should have many years of maintenanc...
Page 12: ...cting terminals 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...
