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Model 452 PBM THX
Atlantic Technology
®
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Adjustable low-pass filter from 55 Hz to full bypass
The slope of this low-pass filter is 18 dB/octave. This allows for flexible integration with most any
brand or type of speaker on the market. A subsonic filter is also incorporated to filter out
inaudible frequencies that can rob amplifier power.
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Two line inputs, two line thruputs, and an 80 Hz line level high-pass output
The thruputs allow daisy-chaining of multiple subwoofers, or can act as a return path back to the
processor. The high-pass outputs send the audio signal, minus the bass frequencies below 80Hz,
back to your amplifier and main speakers.
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Phase inverter toggle switch (0/180 degrees)
Allows matching with many systems whose output may be inverse phased.
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Front panel variable volume control with THX preset position
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Automatic standby operation
The 7-10 minute turn-off delay features a front panel indicator and a defeat switch.
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IEC AC power socket
Unit comes supplied with a detachable power cord.
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Heavy duty rocker type power switch
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Design and construction meets all UL/CSA European safety requirements
Connection
The Atlantic Technology 452 PBM THX Powered Subwoofer is simple to hook up, offering several
connection methods for maximum flexibility. Study the system diagrams starting on page 5. 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 simplicity, 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 new 452 PBM THX Powered Subwoofer(s) using high quality
wire of 16 gauge or larger. There are many respected manufacturers in the audio industry that
specialize in speaker wire and interconnect cables 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! The last step in wiring your system is
plugging in the AC cords!