JBL PSW-D112 setup guide Phase Control Troubleshooting

Page 7

Phase Control

Troubleshooting

The Phase Control determines whether the subwoofer speaker’s piston-like action moves in and out with the main speakers, 0°, or opposite the main speakers, 180°. There is no correct or incorrect set- ting. Proper phase adjustment depends on several variables such as subwoofer placement and listener position. Adjust the phase switch to maximize bass output at the listening position.

Remember, every system, room and listener is different. There are no right or wrong settings; this switch offers the added flexibility to adjust your subwoofer for optimum performance for your specific listening conditions. Should you decide to fine-tune your system for optimum performance, be patient and trust your ears. It will be worth the effort involved to fully “tweak” your system.

If you used the high-level

If there is low (or no) bass

If you used the line-level

(speaker) inputs and there

output:

inputs and there is no sound

is no sound from any of the

• Make sure the connections

from the subwoofer:

speakers:

 

to the left and right “Speaker

• Check that receiver/amplifier

 

• Check that receiver/amplifier

Inputs” have the correct

is on and a source is playing.

is on and a source is playing.

polarity (+ and –).

• Check that powered sub-

• Check that powered sub-

• Make sure that the sub-

woofer is plugged in.

woofer is plugged in.

woofer is plugged into an

• Check all wires and con-

• Check all wires and connec-

active electrical outlet.

nections between receiver/

tions between receiver/ampli-

• Adjust the crossover point.

amplifier and subwoofer. Make

fier and speakers. Make sure

• Flip the Phase Control switch

sure all wires are connected.

all wires are connected. Make

to the opposite position.

Make sure none of the wires

sure none of the speaker wires

• If you are using a Dolby*

are frayed, cut or punctured.

are frayed, cut or punctured.

Digital/DTS® receiver or

• Review proper operation of

• Review proper operation

processor, make sure that the

your receiver/amplifier.

of your receiver/amplifier.

subwoofer adjustments on

• Slowly turn the Level

 

the receiver/processor are

Control clockwise until you

 

set up correctly.

begin to hear the desired

 

• Slowly turn the Level

amount of bass.

 

Control clockwise until you

• Make sure that you have

 

begin to hear the desired

configured your receiver/

 

amount of bass.

processor so that the sub-

 

 

woofer/LFE output is on.

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Contents PSW-D112 Part No. Jblula 10/99 Manufacturer for applicabilityPositioned along PlacementHookup CornerSubwoofer Output/LFE Power amplifier Video Contour PowerOperation Level ControlPhase Control Troubleshooting Specifications

PSW-D112 specifications

The JBL PSW-D112 is a powerful subwoofer that delivers deep, resonant bass, making it an excellent addition to any home theater or audio system. This subwoofer is particularly designed for audiophiles and movie enthusiasts looking for an immersive sound experience.

One of the standout features of the PSW-D112 is its robust 12-inch polypropylene cone driver. This driver is engineered to produce deep, impactful lows that are crucial for a full-bodied bass experience. The cone material is not only lightweight but also rigid, enabling the subwoofer to produce accurate sound without distortion, even at high volumes.

The PSW-D112 is equipped with a built-in 300-watt RMS amplifier, providing ample power to reproduce deep bass frequencies efficiently. This built-in amplifier is designed to handle a wide range of frequencies and ensures that the subwoofer can maintain consistent output without sacrificing sound quality. The amplifier also features a high-efficiency Class D design, which minimizes energy consumption while maximizing performance.

JBL incorporates advanced bass reflex technology in the PSW-D112, utilizing a rear-firing port to enhance low-frequency response. This design allows the subwoofer to create a more profound and fuller sound by harnessing the natural airflow produced during bass reproduction. The combination of the ported design and the powerful driver ensures that the PSW-D112 can fill any room with rich, booming bass.

For added flexibility, the PSW-D112 comes with adjustable controls for volume, low-pass crossover, and phase adjustment. These features allow users to fine-tune the subwoofer to suit their specific listening environments and preferences. Whether you're watching an action-packed movie or listening to your favorite music, the ability to customize the sound output enhances your overall experience.

The build quality of the PSW-D112 is another highlight. With a sleek, modern design, it easily integrates into any home decor. The cabinet is constructed from high-quality materials that not only give it a premium look but also help to reduce unwanted vibrations, ensuring clear sound reproduction.

In summary, the JBL PSW-D112 subwoofer combines power, precision, and versatility, making it an exceptional choice for anyone serious about enhancing their audio experience. With its advanced technologies and thoughtful design features, it promises to deliver deep, immersive bass that will elevate any audio setup.
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