Atlantic Technology 4400 SR, 4400 LR, 4400 C instruction manual System Setup, Bass Management

AVERAGE

REVERBERANT

DAMPED

ROOM

HF ENERGY

High Frequency Energy

8 System Setup

System 4400 High Performance Loudspeakers

System Setup

Bass Management

Some older surround sound decoders and receivers offer a choice of “Nor- mal” or “Wide-band” modes for the center channel speaker. The Model 4400 C is designed to be used in the Normal mode. Additionally, digital processing multi-channel systems provide a Bass Management menu,which typically requires you to select between“Small” or“Large” speakers during system set-up.Since these systems have been designed to work with a dedi- cated subwoofer, please set all the speakers in System 4400 to Small.

Figure 4

4400 LR

Front Channel Left or Right Speaker

			T	I
		U		N
		P		U
	N			P
I				T

BOUNDARY	HF ENERGY
COMPENSATION
ON	REVERBERANT
	DAMPED
	ROOM
NORMAL	AVERAGE

SERIAL

POWER: 10-150W 8 OHMS NOMINAL

Operation of the Rear Panel Controls on the LCR Speakers

This control changes the tilt or roll-off slope of the tweeter. It has been designed to help compensate for different room acoustics.The

THX/ Average position is intended for rooms with

a reasonable combination of reflective (hard) and absorptive (soft) surfaces. The Reverberant position is designed for rooms with an abundance of reflective surfaces like hard-

wood or tile floors, glass walls, etc. It decreases the high frequency output of the speaker to reduce excess HF energy that builds up in live rooms.The Damped position brings the tweeter’s output slightly above flat response to compensate for overly absorbent rooms with lots of soft surfaces. Speak- ers in overly damped rooms can sound dead and lifeless unless compen- sated.

BOUNDARY		Boundary Compensation Use this switch to adjust
COMPENSATION		the lower frequency output of the speaker to com-
	ON
		pensate for the typical sound colorations caused by
		placing the speaker close to a TV screen or building
	NORMAL	it into a wall unit or cabinet. To set these controls, sit
		in the prime listening position and have someone

switch between the compensation choices, using well recorded dialogue or musical instrument recordings. Choose whichever switch position sounds most natural and real to you.

NOTE: Although these controls have been designed to compensate for various acoustic room anomalies, we recommend that you try them to hear the difference that they make in the sound of the sys- tem. For any number of reasons, you may decide that you prefer them set in a particular manner inconsistent with your room’s acoustics,but which sounds best to you. Experiment. It will be worth it.

Dipole/Bipole Operation of the SR Speakers

In Dipole mode the 4400 SR’s produce ambience with minimal local-
		ization (best for most mov-
		ies and video soundtracks),
BIPOLE	DIPOLE	and more localizable sound
		in the Bipole mode (preferred
		for some music recordings).
		Switching between Dipole and
		Bipole mode is easily accom-
		plished using a toggle switch

conveniently located under one of the speaker’s grilles. Please note that the vast majority of the time in movies and TV broadcasts the surround speak- ers are called upon to reproduce the environmental sounds that are used as cues to help get you immersed in the scene on the screen.

Once the surround speakers are properly positioned in the listening area, we recommend that you begin with the dipole mode, as this usually deliv- ers the most involving and believable surround performance in most situ- ations. However, as noted above, feel free to experiment with both switch positions.

When using as front "height" speakers, we recommend starting in the Bipole mode.