JBL D38 User Manual

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D e c a d e tm

D 3 8 , D 3 1 5

S i m p l e S e t u p G u i d e

thank you for choosing JBL. For more than 50 years, JBL has been involved in every aspect of music and film recording and reproduction, from live performances to monitoring the recordings you play in your home, car or office.

We’re confident that the JBL loudspeakers you have chosen will provide every note of enjoyment that you expected – and that when you think about purchasing additional audio equipment for your home, car or office, you will once again choose JBL.

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JBL Consumer Products

one. Speaker Placement

D38

D315

two. Speaker Connections

Connection Tips

Speakers and electronics terminals have corresponding (+) and

(–) terminals. It is important to connect both speakers identically: (+) 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.

 

RIGHT

 

LEFT

+

+

– +

– +

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 connections 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 connections between receiver/ amplifier and speakers.

Make sure all wires are connected. 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 impedance 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.

Specifications

 

D38

D315

Frequency Response (–6dB):

50Hz – 20kHz

40Hz – 20kHz

Recommended Maximum

 

 

Amplifier Power*:

175 watts

250 watts

Sensitivity @ 1 watt/1 meter:

92dB

96dB

Nominal Impedance:

8 ohms

8 ohms

Woofer:

8"

15"

Midrange:

4"

4"

Tweeter:

2"

2"

Dimensions (H x W x D):

16-3/4 x 10-3/4 x 12 inches

30-7/8 x 16-1/4 x 11-1/2 inches

 

(425 x 273 x 305mm)

(784 x 413 x 292mm)

Weight (each):

17 lbs/7.7 kg

35 lbs/15.9 kg

*The maximum recommended amplifier power rating will ensure proper system headroom to allow for occasional peaks. We do not recommend sustained operation at these maximum power levels.

Occasional refinements may be made to existing products without notice, but will always meet or exceed original specifications unless otherwise stated.

JBL Consumer Products

250 Crossways Park Drive, Woodbury, NY 11797

8500 Balboa Boulevard, Northridge, CA 91329 1-800-336-4JBL (4525) (USA only) www.jbl.com

© 1998 JBL, Incorporated. JBL is a registered trademark of JBL, Incorporated.

9/98 Part No.: D38,D315OM

A Harman International Company

Declaration of Conformity

We, JBL Europe A/S

Kongevejen 194B

DK-3460 Birkerød

DENMARK

declare in own responsibility, that the products described

in this owner’s manual are in compliance with technical

standards:

EN 50081-1:1992

EN 50082-1:1992

Steen Michaelsen

JBL Europe A/S

Birkerød. DENMARK. 9/98