Atlantic Technology IWCB-52 Front Panel Controls, Specifications, HF High Frequency Level Control

Front Panel Controls 7

Instruction Manual

Front Panel Controls

The IWCB speakers have three controls that help optimize the speaker’s performance regardless of mounting loca- tion or room acoustics.

HF (High Frequency) Level Control

This control adjusts the relative level of high frequency output to compensate for varying room acoustics or placement behind a screen.

“+” is for absorptive,acoustically“dead” rooms (or when the speaker is behind a movie screen). Use this position to increase the HF level and restore the proper sparkle and liveliness to

the sound.

“0” is for rooms of average absorptive characteristics.

“-“ should be used in rooms that are highly reflective, with hard floors and exposed windows.

The setting of the HF control is mostly a matter of personal taste, so try it in all three positions and see which one is preferred.

Boundary Compensation Control

Large room boundaries, such as floors, walls, and ceil- ings, reinforce sound by acting essentially as acoustic “mirrors.” When the speaker is mounted too close to the corner or a wall/ceiling intersection,this sonic“reinforce- ment” often results in an unnatural heaviness or color- ation of the sound.

If it’s necessary to mount the speaker closer than 12 inches to the ceiling or corner,you may find that by switching the Boundary Compensation control “on,” the speaker sounds better.We recommend that you try the control in both positions and see if it helps in your particular installation.

Directional Vector Control™

Oftentimes, it is visually advantageous to mount the speaker high up on the wall, as this puts the speaker above the field of vision and thus prevents any intrusion by the speaker into the room’s décor.

However,acoustically,the best location for a speaker is at seated ear level, about 3-4 feet off the floor.

The DVC electronically directs the midrange sound at the listener’s ears, even when the speaker is mounted high up on the wall.

The “on” position directs the sound down at the listeners when using the speakers as LCR theater speakers or primary stereo music speakers.

The “off” position fires the sound straight out from the speakers—above the listener’s heads—which is perfect for non-localizable surround use,or for room-filling background music (“whole house audio”) use.

IR Knockout

There’s an IR “knockout” plug in the upper right corner of the front baffle. If you are using a multi-room con- trol system, you can install a standard IR receiver in the knockout hole.

Should you have any questions or problems please feel free to contact us at 781-762-6300 or through our web site, www.atlantictechnology.com.

Specifications

		IWCB-52	IWCB-525	IWCB-626
Type		2-way	2-way M-T-P array	2-way M-T-P array
Drivers	Woofer	5 ¼” (135mm) GLH*	5 ¼” (135mm) GLH*	6 ½” (165mm) GLH*
Pressure Driver			5 ¼” (135mm) GLH*	6 ½” (165mm) GLH*
	Tweeter	1" (25mm) soft dome	1" (25mm) soft dome	1" (25mm) soft dome
Frequency Response		75Hz – 20kHz ±3dB	64Hz – 20kHz ±3dB	54Hz – 20kHz ±3dB
Nominal Impedance		6 Ohms	6 Ohms	6 Ohms
Crossover Frequency		2.75kHz, 3rd order	2.5kHz, 3rd order	2.2kHz, 3rd order
Sensitivity		87dB	87dB	87dB
Recommended Power		10 – 120 Watts RMS	10 – 140 Watts RMS	10 – 140 Watts RMS
Dimensions		9 5⁄16 x 17 11⁄16 x 3 7⁄8"	10 13⁄16 x 19 x 3 7⁄8"	12 5⁄16 x 21 5⁄8 x 3 7⁄8"
(W x H x D)		236 x 449 x 100mm	274 x 484 x 100mm	312 x 547 x 100mm
Cutout Dimensions		8 1⁄8 x 16 ½”	9 5⁄8 x 17 7⁄8”	11 1⁄8 x 20 3⁄8”
(W x H x D)		206 x 411mm	244 x 454mm	283 x 518mm
Net Weight		9lbs; 4.1kg each	10lbs; 4.6kg each	12lbs; 5.6kg each

*Graphite Loaded Homopolymer

Specifications are those in effect at the time of printing. Atlantic Technology reserves the right to change speci- fications or appearance at any time without notice.

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