Atlantic Technology 452 PBM Instruction Manual

Model 452 PBM THX® Reference THX

Powered Subwoofer System

Instruction Manual

Atlantic Technology

NNOVATIVE

343 Vanderbilt Avenue Norwood, MA 02062 (781) 762-6300

OME

HEATER

Model 452 PBM THX

Atlantic Technology

ODEL

Reference THX Powered Subwoofer System

Congratulations on your purchase of an Atlantic Technology 452 PBM THX powered subwoofer. With proper care, your new subwoofer will provide many years of trouble-free, high quality reproduction.

The 452 PBM is fully THX certified to provide very high output levels and a wide dynamic range with smooth in-room response down to 20 Hz, with a peak SPL of 110 dB.

The subwoofer also features a proprietary class G linear amplifier conservatively rated at 325 watts rms. This amplifier, coupled with a massive 15" high-excursion woofer will deliver very high output levels with minimum distortion.

Your Atlantic Technology powered subwoofer will easily integrate with virtually all other brands of loudspeakers on the market. All inputs and outputs, both line level and high (speaker) level, are designed for optimum signal integrity. The premium quality gold plated connectors and all controls are clearly labeled and versatile in operation. The amplifier has more than ample power and headroom to supply a high fidelity foundation to any audio or home theater system.

Lucasfilm Home THX

George Lucas and Lucasfilm, creators of the Star Wars saga, originated and perfected Home THX, a strict set of standards and guidelines for home theaters, enabling you to reproduce the full sound heard in the finest theaters in your home. When properly followed, these guidelines address and

THX system, no matter what surround decoding system is used. Whether you are using Dolby Digital (AC-3), DTS, Dolby Pro Logic, or any other system, Home THX will make the experience more natural and lifelike. With the lights down, your intimate home theater environment is transformed into the large acoustic space of a real theater. It’s really quite startling how “big” your room will sound when the lights are off and the visual cues of your room size are absent.

452 PBM THX

correct the problems encountered when a film soundtrack is played back in the smaller environment of the home. The Home THX system takes a soundtrack that was mixed and equalized to play back in a large theater and adapts it to reproduce more naturally when experienced in the smaller space of your home.

It is important to realize that THX is not a recording process or a special decoding system. All motion pictures will be reproduced as they were heard in the film studio dubbing stage through the Home

Features

Your Atlantic Technology 452 PBM THX powered subwoofer was engineered using the latest technology and finest components available.

● High excursion 15" driver in a sealed acoustic suspension cabinet

● Class “G” linear power amplifier conservatively rated at 325 watts RMS

● Discrete, high current output devices

● Working frequency range from 20 Hz to full bypass, (approximately 500 Hz)

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Model 452 PBM THX

Atlantic Technology

Connection

● 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.

● 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.

● Phase inverter toggle switch (0/180 degrees)

Allows matching with many systems whose output may be inverse phased.

● Front panel variable volume control with THX preset position

● Automatic standby operation

The 7-10 minute turn-off delay features a front panel indicator and a defeat switch.

● IEC AC power socket

Unit comes supplied with a detachable power cord.

● Heavy duty rocker type power switch

● Design and construction meets all UL/CSA European safety requirements

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!

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Model 452 PBM THX

Figure 1:

Amplifier panel and controls for Model 452 PBM THX

Atlantic Technology

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