JBL Portable Speaker D38 User Manual

tm  
D e c a d e  
D38, D315  
Simple Setup Guide  
thank youfor 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.  
Please take a moment to complete the enclosed profile card. It enables  
us to keep you posted on our latest advancements, and helps us to  
better understand our customers and to build products that meet their  
needs and expectations.  
JBL Consumer Products  
 
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.  
RIGHT  
LEFT  
+
+
– +  
– +  
Speaker Outputs  
Troubleshooting  
If there is no sound from  
any of the speakers, check  
the following:  
If the system plays at low  
volumes but shuts off as  
volume is increased, check  
the following:  
If there is low bass output,  
check the following:  
• Make sure the polarities  
(+ and –) of the left and  
right “Speaker Inputs” are  
connected properly.  
• Receiver/amplifier is on and  
a source is playing.  
• Review proper operation of  
your receiver/amplifier.  
• 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 there is no sound coming  
from one speaker, check the  
following:  
• If more than one pair of  
main speakers is being used,  
check the minimum imped-  
ance requirements of your  
receiver/amplifier.  
• 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.  
 
Specifications  
D38  
D315  
Frequency Response (–6dB): 50Hz – 20kHz  
40Hz – 20kHz  
Recommended Maximum  
Amplifier Power*: 175 watts  
250 watts  
96dB  
8 ohms  
15"  
Sensitivity @ 1 watt/1 meter: 92dB  
Nominal Impedance: 8 ohms  
Woofer: 8"  
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  
(784 x 413 x 292mm)  
(425 x 273 x 305mm)  
Weight (each): 17 lbs/7.7 kg  
35 lbs/15.9 kg  
*The maximum recommended  
amplifier power rating will  
ensure proper system head-  
room 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 origi-  
nal specifications unless  
otherwise stated.  
Declaration of Conformity  
We, JBL Europe A/S  
Kongevejen 194B  
DK-3460 Birkerød  
DENMARK  
JBL Consumer Products  
250 Crossways Park Drive, Woodbury, NY 11797  
8500 Balboa Boulevard, Northridge, CA 91329  
1-800-336-4JBL (4525) (USA only)  
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  
1998 JBL, Incorporated.  
JBL is a registered trademark  
of JBL, Incorporated.  
©
9/98  
Part No.: D38,D315OM  
Steen Michaelsen  
JBL Europe A/S  
Birkerød. DENMARK. 9/98  
A Harman International Company  
 

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