○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Models 4.5 LR, 4.5 C, and 4.5 SR
S
YSTEM
4.5
High Performance Ultra-Compact
Home Theater Loudspeaker System
Thank you for choosing Atlantic Technology home
theater products. Your new speaker system is
precision crafted to give you years of enjoyable,
trouble free service. This manual covers the Atlantic
Technology System 4.5 series of speakers for home
theater. It will show you how to incorporate the
following System 4.5 components into your present
setup, as well as how to assemble a complete
system. The Model 4.5 PBM Subwoofer is covered in
detail in a separate manual. System 4.5 has been
optimized for use with any surround sound format
including Dolby Surround
®
, Dolby Pro-Logic
®
,
Dolby Digital 5.1
®
and DTS
®
digital surround
formats.
Model 4.5 LR Front Channel Speaker
The
Model 4.5 LR Front Channel Speakers
are two-way systems including a built-in high pass
filter at 125 Hz, intended for use with a quality subwoofer, such as the Atlantic Technology Model 4.5
PBM. Each speaker contains two 3 1/2" IMG (injection-molded graphite) woofers, and a 1" Ferrofluid
®
cooled silk dome tweeter using a powerful neodymium magnet, in an acoustically inert MDF cabinet.
Model 4.5 C Center Channel Speaker
It is vital to the accurate reproduction of a multi-channel soundtrack that the three front speakers have
the same sonic signature. Therefore, the
Model 4.5 C Center Channel Speaker
contains the same
two 3 1/2" IMG woofers, 1" Ferrofluid
®
cooled silk dome tweeter, and built-in 125 Hz high pass filter as
the 4.5 LR speakers. The 4.5 C is designed for use in home theater systems that use a dedicated center
channel speaker. This speaker incorporates unique compensation circuitry that allows it to be placed
directly above or below the TV screen and still provide accurate reproduction. Since up to 85% of the
movie soundtrack is reproduced through the center channel speaker, it is important that its sound be
accurate and timbre-matched to the other speakers in the system. The unique rear-mounted high
frequency control incorporated in the 4.5 C allows virtually perfect matching.
To further optimize the performance of the three front channels, all the drivers in the 4.5 LR's and
4.5 C are mounted to a solid machined aluminum plate. This mounting system eliminates undesirable
resonances and helps focus the tweeter’s sound to provide precise image placement and wide
dispersion.