The center channel in a surround sound system is a critical component to deliver dialogue, music, and special effects with such accuracy you will hear every nuance no matter what the source. Our new 8600eC center channel speaker employs a set of seven drivers, crossover, bi-wire capability and acoustic optimization controls matched to our 8600eLR floor-standing LR speakers, so sounds move seamlessly across the front channels.

The 8600eC can be placed above, below or behind an acoustically transparent projection screen. It incorporates the trademark Atlantic pivoting base which tilts the 8600eC up or down so its sound is optimized to the listener's seating position. Built-in compensation controls* further optimize the system for any placement and room acoustics for the ultimate in flexibility and performance for today's high-end installations.

With the design of the 8600e series, Atlantic Technology set new standards for performance. By implementing new driver technology in an all-new configuration, we have developed a no-compromise surround sound speaker system able to deliver superb performance in a wide variety of acoustic settings.

This all-new speaker design of the 8600eC features internally braced .75-inch thick non-resonant MDF cabinets housing seven new state-of-the art Atlantic Technology drivers configured in a D'Appolito/M-T-M array; four 6.5-inch fiberglass woofers, two 5.25-inch fiberglass mid-drivers, and an advanced 1-inch aluminum/magnesium dome tweeter with a powerful neodymium magnet structure. The midrange and tweeter drivers are internally isolated within their own airtight sub-enclosure.

Critical to a center channel's performance is dialog intelligibility. Loudspeaker brands employing a D'Appolito/M-T-M array in a system will often arrange the center channel M-T-M speakers in a symmetrical or horizontal arrangement rather than matching the correct vertical D'Appolito/M-T-M array of the L/R speakers. Unfortunately, the symmetrical arrangement creates undesirable audible comb-filtering effects which cause the dialog intelligibility to change across listener seating positions. The 8600eC D'Appolito/M-T-M array retains the same critical vertical alignment as the 8600eLR L/R channels so that listeners in all positions get the clearest, best un-compromised sound quality.

Like the 8600e LR's, the cross-over is a 4th order Butterworth asymmetrical time-aligned Linkwitz-Riley design with bi-wire inputs to maximize efficient power transfer and maintain optimum amplifier damping factor for the best bass control. 24K gold-plated terminals accept and tightly secure very large gauge speaker cable and also accept banana plugs. 24K gold-plated terminal jumper links are used when bi-wiring is not employed. A high-sensitivity spec of 93 dB with power handling of up to 300-watts makes the 8600eC perfect for very high-performance, large-room home theater systems.

• Dual long-throw composite cone bass drivers, each with a vented motor structure and high temperature, 2-inch, 4-layer voice coil. This powerful driver design has a very stiff cone that acts like a piston through its operating range. Its massive magnetic motor assembly and high temperature component parts deliver exceptional performance and reliability.
• Sealed, acoustic-suspension bass-alignment with a robust braced MDF enclosure. This delivers low distortion, superior transient response and extended deep bass output, resulting in Atlantic's renowned accurate musical bass reproduction with wide dynamic range for stunning special effects.
• High-efficiency 500 and 1000 watt amplifiers. The digital output stages are capable of very high current delivery for exceptional driver control and headroom while ensuring cool, reliable operation. Each amplifier is precision matched and equalized to its specific driver resulting in powerful, controlled bass with great articulation and authority.
• Volume control. Sets the subwoofer's overall output to match the sound level with the rest of the audio system.
• Continuous Adjustable 40 Hz to 140 Hz, 24dB per octave low pass crossover. The steep 24dB per octave slope allows for much better blending with the satellite speakers while making the woofer less localizable.
• Low Pass/Bypass Switch. The Low Pass setting sets the upper frequency limit of the subwoofer with the sub's adjustable crossover control. A Bypass setting is for processors and receivers with their own crossovers and low-pass outputs.
• EQ Switch. The Max SPL position provides stronger overall output with restricted deep bass output. The Max Range position provides deeper bass extension with restricted maximum overall output.
• Absolute Phase Invert Switch. This switches between normal or inverted phase to allow better acoustic matching and blending with satellite speaker systems. This switch also allows you to compensate for unusual room acoustics that occur when the woofer is physically separated from the main speakers by a significant distance.
• Choice of Line In and XLR inputs. Connect mono or stereo signals to line or XLR inputs for better rejection of hum and noise over longer cable runs for more flexible sub placement in larger rooms.
• Main Power/Automatic standby. The three position power switch (on/off/standby) gives users operational flexibility. Automatic standby senses a signal presence to turn the subwoofer on. It automatically turns back to standby with a 7 to 10 minute delay when no signal is present.
• LED Status Indicators: The multi-color power indicator LED located on the amplifier panel glows green when on, yellow in standby and red when off.
• 110-120/220-240V (50/60Hz) Input Voltage Switch. Allows for international use with industry standard user detachable cables connecting to the sub's IEC-320-13 power input socket.

• Dual long-throw composite cone bass drivers, each with a vented motor structure and high temperature, 2-inch, 4-layer voice coil. This powerful driver design has a very stiff cone that acts like a piston through its operating range. Its massive magnetic motor assembly and high temperature component parts deliver exceptional performance and reliability.
• Sealed, acoustic-suspension bass-alignment with a robust braced MDF enclosure. This delivers low distortion, superior transient response and extended deep bass output, resulting in Atlantic's renowned accurate musical bass reproduction with wide dynamic range for stunning special effects.
• High-efficiency 500 and 1000 watt amplifiers. The digital output stages are capable of very high current delivery for exceptional driver control and headroom while ensuring cool, reliable operation. Each amplifier is precision matched and equalized to its specific driver resulting in powerful, controlled bass with great articulation and authority.
• Volume control. Sets the subwoofer's overall output to match the sound level with the rest of the audio system.
• Continuous Adjustable 40 Hz to 140 Hz, 24dB per octave low pass crossover. The steep 24dB per octave slope allows for much better blending with the satellite speakers while making the woofer less localizable.
• Low Pass/Bypass Switch. The Low Pass setting sets the upper frequency limit of the subwoofer with the sub's adjustable crossover control. A Bypass setting is for processors and receivers with their own crossovers and low-pass outputs.
• EQ Switch. The Max SPL position provides stronger overall output with restricted deep bass output. The Max Range position provides deeper bass extension with restricted maximum overall output.
• Absolute Phase Invert Switch. This switches between normal or inverted phase to allow better acoustic matching and blending with satellite speaker systems. This switch also allows you to compensate for unusual room acoustics that occur when the woofer is physically separated from the main speakers by a significant distance.
• Choice of Line In and XLR inputs. Connect mono or stereo signals to line or XLR inputs for better rejection of hum and noise over longer cable runs for more flexible sub placement in larger rooms.
• Main Power/Automatic standby. The three position power switch (on/off/standby) gives users operational flexibility. Automatic standby senses a signal presence to turn the subwoofer on. It automatically turns back to standby with a 7 to 10 minute delay when no signal is present.
• LED Status Indicators: The multi-color power indicator LED located on the amplifier panel glows green when on, yellow in standby and red when off.
• 110-120/220-240V (50/60Hz) Input Voltage Switch. Allows for international use with industry standard user detachable cables connecting to the sub's IEC-320-13 power input socket.

The Atlantic Technology 642e SB THX Select powered subwoofer is a significant upgrade from its highly acclaimed predecessor. Compared to the original 642, we have developed a totally new driver with three times the motor size, a stiffer spider, and a heavier cone. It's a real "monster" of a driver. While the driver's free-air resonance remains at 25 Hz, the output of the sub from 35 Hz to 60 Hz-right in the impact range- has been improved by almost 3dB.

We have modified the equalization (because of the new driver's improved low-frequency output, less amp power is needed for EQ, and consequently more power is available for SPL), limiting and soft clipping parameters of the amplifier to optimize its performance. The result of these changes is a perceived 50-watt increase. In other words, the amplifier plays louder than before, with less distortion at its limits. The 642e SB features a sealed enclosure design for low distortion and smoother bass output. Sealed enclosure woofer designs are inherently low in distortion, and deliver deep smooth bass response with a gradual and predictable roll-off below resonance. As with all Atlantic Technology subwoofers, close attention has been paid to providing accurate musical bass reproduction along with terrific special effects. Atlantic's proprietary Clear Filter Technology ensures that the bass is detailed and accurate.

Powered by a high-efficiency 350 watt amplifier, the 642e SB utilizes the latest in amplifier technology, with an output stage capable of extremely high current delivery and maximum efficiency for exceptional driver control and cool thermal operation. As a custom-designed amplifier, it has been precision matched and equalized to the new 12" driver.

With a useful in-room frequency response of 20Hz to 150Hz, the 642e SB subwoofer is designed to deliver its rated performance under actual listening conditions, when properly placed and adjusted. Additionally, an adjustable (40Hz to 140Hz) 18dB per octave Low Pass crossover with steep upper end roll-off allows for much better bass integration with your main speakers.