DOWNLOAD JBL SP 150 Service Manual ↓ Size: 2.56 MB | Pages: 51 in PDF or view online for FREE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

       

 

 

 

 

 

 

  

Active 10” Subwoofer.  
Loft Series.

 

 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
Released EU2012   

 

Harman Consumer Group, Inc. 

 

Rev 0, 02/2012 

 

 

 

 

 

       8500 Balboa Boulevard 

 

 

 

 

 

CONTENTS 

Your new JBL

®

 SP-150 150-watt powered subwoofer incorporates 

a 10" (250mm) down-firing cone transducer and a built-in high-

performance 150-watt amplifier that deliver the powerful, dynamic 

and accurate low-frequency performance that makes your film 

soundtracks and music come alive. And with line-level and 

speaker-level inputs, adjustable crossover and phase controls and 

automatic turn on/off, the SP-150 is also simple to connect and 

set up.

We’re confident that this JBL subwoofer will provide every note 

of enjoyment that you expect – and that when you think about 

purchasing additional audio equipment for your home, car or 

office, you will once again choose JBL products.

This quick-start guide contains all the information you need to set 

up, connect and adjust your new subwoofer. For more in-depth 

information, go to our Web site: www.jbl.com.

150-Watt, 10" (250mm) Powered Subwoofer

JBL

150P / 230V Service Manual

Page 1 of 50

  

1. Read these instructions.

  

2. Keep these instructions.

  

3. Heed all warnings.

  

4. Follow all instructions. 

  

5. Do not use this apparatus near water.

  

6. Clean only with dry cloth.

  

7.  Do not block any ventilation openings. Install in accordance with the 

manufacturer’s instructions.

 

 8.  Do not install near any heat sources such as radiators, heat registers, 

stoves, or other apparatus (including amplifiers) that produce heat.

  

9.  Do not defeat the safety purpose of the polarized or grounding-type 

plug. A polarized plug has two blades with one wider than the other.  

A grounding-type plug has two blades and a third grounding prong. 

The wide blade or third prong is provided for your safety. If the 

provided plug does not fit into your outlet, consult an electrician for 
replacement of the obsolete outlet.

10.  Protect the power cord from being walked on or pinched, particularly 

at the plugs, convenience receptacles and the point where they exit 

from the apparatus.

11.  Only use attachments/accessories specified by the manufacturer.
12.  Use only with the cart, stand, tripod, bracket or table 

specified by the manufacturer or sold with the apparatus. 

When a cart is used, use caution when moving the cart/

apparatus combination to avoid injury from tip-over.

13.  Unplug this apparatus during lightning storms or when 

unused for long periods of time.

14.  Refer all servicing to qualified service personnel. Servicing is required 

when the apparatus has been damaged in any way, such as: when 
the power supply cord or plug has become damaged, when liquid has 

been spilled or objects have fallen into the apparatus, when the appa-
ratus has been exposed to rain or moisture, when the apparatus does 
not operate normally, or the apparatus has been dropped.

15.  Do not expose this apparatus to dripping or splashing and ensure 

that no objects filled with liquids, such as vases, are placed on the 

apparatus.

16.  To completely disconnect this apparatus from the AC mains, discon-

nect the power supply cord plug from the AC receptacle.

17.  The mains plug of the power supply cord shall remain readily operable.
18.  Do not expose batteries to excessive heat such as sunshine, fire or  

the like.

The lightning flash with arrowhead symbol, within an equilateral 

triangle, is intended to alert the user to the presence of uninsulated 

“dangerous voltage” within the product’s enclosure that may be of 

sufficient magnitude to constitute a risk of electric shock to  
persons.

 

The exclamation point within an equilateral triangle is intended to 

alert the user to the presence of important operating and mainte-
nance (servicing) instructions in the literature accompanying the 
product.

WARNING: To reduce the risk of fire or electric shock, do not expose this 

apparatus to rain or moisture.

IMPORTANT: THE SUBWOOFER REQUIRES PROPER VENTILATION 
AND IS NOT TO BE USED IN AN ENCLOSED ENVIRONMENT.

This marking indicates that this product should not be 

disposed with other household wastes throughout the EU. To 

prevent possible harm to the environment or human health 

from uncontrolled waste disposal, recycle it responsibly to 

promote the sustainable reuse of material resources. To return 

your used device, please use the return and collection systems 

or contact the retailer where the product was purchased. They 

can take this product for environmental safe recycling.

JBL

150P / 230V Service Manual

Page 2 of 50

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•  

On/Auto: When this switch is set in the “On/Auto” position the 

subwoofer will automatically turn itself on when it receives an audio 

signal, and will enter the Standby mode when it has gone without 

receiving an audio signal for 10 minutes.

•  

Off: Set the switch in the “Off” position to turn the subwoofer off. 

Select this position if you will not be using the subwoofer for an 

extended period of time, such as when on vacation.

Phase switch: This switch determines whether the subwoofer driver’s 

piston-like action moves in and out in phase with the satellite speakers. If 

the subwoofer were to play out of phase with the satellite speakers, the 

sound waves from the satellites could partially cancel out the sound waves 

from the subwoofer, reducing bass performance and sonic impact. This 

phenomenon depends in part on the placement of all the speakers relative 

to each other in the room.

Line-Level Input connector: If your receiver/processor has a dedicated 

subwoofer output, use a single RCA audio cable (not supplied) to connect 

it to the subwoofer’s Line-Level Input connector.

Crossover Frequency control: This control determines the highest 

frequency at which the subwoofer reproduces sounds. The higher you set 

the Crossover control, the higher in frequency the subwoofer will oper-

ate and the more its bass will “overlap” that of the satellite speakers. This 

adjustment helps achieve a smooth transition of bass frequencies between 

the subwoofer and the satellites for a variety of different rooms and sub-

woofer locations.

Volume control: Use this control to adjust the subwoofer’s volume. Turn 

the knob clockwise to increase the volume; turn the knob counterclock-

wise to decrease the volume.

Speaker-Level Input connectors: If your receiver does not have a 

dedicated subwoofer output, use speaker wire (not supplied) to connect 

its Front Left and Front Right speaker outputs to the subwoofer’s Speaker-

Level Input connectors. Connect your system’s Front Left and Front Right 

speakers to the subwoofer’s Speaker-Level Output connectors (see below).

Speakers and amplifiers have corresponding positive and negative (“+” and 

“–”) connectors. The SP150 Speaker-Level Input connectors are marked 

“+” and “–” beneath the connector levels. Additionally, the “+” connectors 

have red markings, while the “–” connectors have black markings.

To ensure proper polarity, connect each “+” connector on the back of your 

receiver or amplifier to the respective “+” (red) connector on each speaker. 

Connect the “–” connectors in a similar way. Do not reverse polarities (i.e., 

“+” to “–” or “–” to “+”) when making connections. Doing so will cause 

poor stereo imaging and diminished bass performance.

Speaker-Level Output connectors: If you used the subwoofer’s Speak-

er-Level Input connectors to connect it to your receiver, you must connect 

your system’s Front Left and Front Right speakers to the subwoofer’s 

Speaker-Level output connectors. To ensure proper polarity, connect each 

“+” connector on the subwoofer to the respective “+” (red) connector on 

each speaker. Connect the “–” connectors in a similar way. Do not reverse 

polarities (i.e., “+” to “–” or “–” to “+”) when making connections. Doing so 

will cause poor stereo imaging and diminished bass performance.

AC Fuse holder: The SP150 is factory-equipped with a 2A/250V AC fuse. 

If the fuse ever blows: 

1.  Unplug the subwoofer’s power cord from the wall.
2.  Use a screwdriver to remove the blown fuse.
3.  Replace the fuse with an identical 2A/250V fuse.

Power cord: After you have made and verified all subwoofer and speaker 

connections described in this manual, plug the power cord into an ac-

tive, unswitched electrical outlet for proper operation of the subwoofer. 

DO NOT plug this cord into the accessory outlets found on some audio 

components.

Crossover Frequency 

Control

Auto-On Switch

Phase Switch

AC Fuse 

Holder

Speaker-Level 

Input Connectors

Line-Level 

Input Connector 

Speaker-Level 

Output Connectors 

Volume Control

Power Cord

JBL

150P / 230V Service Manual

Page 3 of 50