two. Speaker Connections

Connection Tips

Speakers and electronics terminals have corresponding (+) and

(–)terminals. It is important to connect both speakers identi- cally: (+) on the speaker to (+) on the amplifier and (–) on the speaker to (–) on the amplifier. Wiring “out of phase” results in thin sound, weak bass and a poor stereo image.

Ð

RIGHT

+Ð

LEFT

+

Ð +

Ð

+

Speaker Outputs

Troubleshooting

If there is no sound from any of the speakers, check the following:

Receiver/amplifier is on and a source is playing.

Review proper operation of your receiver/amplifier.

If there is no sound coming from one speaker, check the following:

Check the “Balance” control on your receiver/amplifier.

Check all wires and connec- tions between receiver/ amplifier and speakers.

Make sure all wires are connected. Make sure none of the speaker wires are frayed, cut or punctured.

If the system plays at low volumes but shuts off as volume is increased, check the following:

Check all wires and connec- tions between receiver/ amplifier and speakers.

Make sure all wires are con- nected. Make sure none of the speaker wires are frayed, cut or punctured.

If more than one pair of main speakers is being used, check the minimum imped- ance requirements of your receiver/amplifier.

If there is low bass output, check the following:

Make sure the polarities (+ and –) of the left and right “Speaker Inputs” are connected properly.

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JBL D38 setup guide Troubleshooting, Speakers and electronics terminals have corresponding +

D38 specifications

The JBL D38 is a remarkable loudspeaker that has carved a niche for itself among audiophiles and music enthusiasts alike. Known for its exceptional sound quality and innovative design, the D38 embodies JBL’s commitment to delivering high-performance audio.

One of the standout features of the JBL D38 is its large 12-inch woofers, which provide powerful bass response. These woofers are designed using advanced materials that ensure durability and optimize sound reproduction. Combined with a specially tuned cabinet, the woofers deliver deep, resonant low frequencies that enhance the overall listening experience.

The D38 also utilizes a 5-inch midrange driver, which is crucial for accurately reproducing vocals and instruments. This midrange driver is engineered to minimize distortion, allowing for clear and natural sound. It ensures that the nuances of vocal performances and the intricacies of live instruments come through with remarkable fidelity.

At the high end, the D38 is equipped with a high-quality dome tweeter. This tweeter extends the frequency response into the upper range, delivering crisp and detailed highs. The tweeter design is optimized to provide smooth dispersion, allowing listeners to enjoy a wide soundstage from various listening positions.

JBL incorporates several innovative technologies in the D38, including advanced crossover networks. These networks are finely tuned to ensure an optimal distribution of frequencies to each driver, enhancing the speaker's overall coherence and balance. This attention to detail ensures that each component works harmoniously to deliver an immersive audio experience.

Aesthetically, the JBL D38 features a classic design that combines vintage appeal with modern functionality. The wood veneer finish not only adds elegance but also contributes to the acoustic properties of the speaker, minimizing resonance and enhancing sound quality.

Overall, the JBL D38 stands as a testament to the brand’s legacy in the audio industry. Its blend of powerful bass, clear midrange, and smooth highs, along with innovative technologies and timeless design, makes it a preferred choice for discerning listeners who seek high-quality audio performance. Whether used in a home audio system or a professional setting, the JBL D38 promises to deliver an outstanding sonic experience that resonates with music lovers everywhere.