Read JBL BALBOA SUB10 Service Manual online
Balboa
™
Series
SUB10
Powered Subwoofer
Service Manual
JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797
Rev0 10/2006
- CONTENTS -
BASIC SPECIFICATIONS …………….……..…………..1
PACKING……..………………….….….…………..……...2
DETAILED SPECIFICATIONS ……….……..…………..3
CONNECTIONS………………………...……..…...…..…5
OPERATION ……..………………….……...…….….…...7
TEST SET-UP AND PROCEDURE….…………………..8
EXPLODED VIEW/PARTS LIST…………………………9
AMPLIFIER BLOCK DIAGRAM…………………………10
DETAILED TROUBLESHOOTING……………………..12
ELECTRICAL PARTS LIST ..……….……….……….…13
P.C.B. DRAWINGS……………………………………….17
IC/TRANSISTOR PINOUTS..……..….…….….….….….23
SCHEMATICS……………………….……………………24
BALBOA SUB10 SPECIFICATIONS
Amplifier Power (RMS):
100 Watts
Peak Dynamic Power *:
225 Watts
Driver:
10"
(254mm)
Inputs:
Line Level and LFE
Crossover Frequency:
Variable from 50Hz to 150Hz, 24 dB per octave
Frequency Response:
30Hz – 150Hz
Dimensions (H x W x D):
19-3/4" x 14-1/16" x 14-3/4"
(502mm x 357mm x 375mm)
Weight:
35
lb/16kg
JBL continually strives to update and improve existing products, as well as create new ones. The
specifications and details in this and related JBL publications are therefore subject to change without notice.
specifications and details in this and related JBL publications are therefore subject to change without notice.
* The Peak Dynamic Power is measured by recording the highest center-to-peak voltage measured across the output of
a resistive load equal to minimum impedance of the transducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off.
a resistive load equal to minimum impedance of the transducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off.
BALBOA series SUB10
1
BALBOA series SUB10
2
Balboa Sub 10
100W Powered Sub/ Plate Amp
LINE VOLTAGE
Yes/No
Hi/Lo Line
Unit
Notes
US 120VAC/60Hz
Yes
108-132
Vrms
Normal Operation
EU 230VAC/50-60Hz
Yes
207-254
Vrms
Normal Operation
Normal operation, MOMS required
Parameter
Specification
Unit
QA Test Limits
Conditions
Notes
Amp Section
Type (120V Model)
Type (120V Model)
AB
AB
N/A
120V System is Class AB
Type (230V Model)
G
H
N/A
230V System is Class G
Load Impedance (speaker)
4
Ohms
N/A
Nominal
System average impedance
8.2
Ohms
Reference
Measured with AP using the ratio
method, sweeping with an ext. amp 10 to
500 Hz
method, sweeping with an ext. amp 10 to
500 Hz
Average on the operating BW from 10 to
500Hz
500Hz
Rated Output Power 120V
100
Watts
95
@ Nominal input voltage
Rated Output Power 230V
105
Watts
100
@ Nominal input voltage
Avgerage value - RMS
Dynamic power
Dynamic power
103
Watts
Reference
@ Nominal input voltage
3/20 50 Hz Burst unit driven 6dB above the
sensitivity to drive it into max power,
measured value is the average of the 4 first
consecutive peaks
sensitivity to drive it into max power,
measured value is the average of the 4 first
consecutive peaks
Dynamic power HP
134
Watts
Reference
@ Nominal input voltage
Highest RMS of the first 4 consecutive
peaks
peaks
THD@ Rated Power
0.5
%
1
22K filter
THD @ 1 Watt
0.1
%
0.3
22K filter
DC Offset
10
mV-DC
50
@ Speaker Output
Damping factor
>150
DF
100
Measured at amplifier board speaker out
terminals, Output power 90 Watts THD <
0.1 %
terminals, Output power 90 Watts THD <
0.1 %
Input Sensitivity
Input Frequency
Input Frequency
50
Hz
50
Nominal Freq.
Line Input (L&R)
15
mVrms
±2dB
To 1 Watt
Single input driven 1 input driven
LFE Input
9.5
mVrms
±2dB
To 1 Watt
LFE input driven only
System Gain-L and R inputs
42.27
dB
±2dB
Gain=130
Single input driven L or R
Signal to Noise
SNR-A-Weighted
SNR-A-Weighted
90
dBA
85
To Rated power
A-Weighting filter
SNR-unweighted
85
dBr
80
To Rated power
22KHz filter
SNR @ 1W-unweighted
65
dBr
60
To 1 Watt
22KHz filter
Residual Noise Floor
1
mVrms(max)
1.5
Volume @max, w/ A/P Swept Bandpass
Measurement (Line freq.+ harmonics)
Measurement (Line freq.+ harmonics)
Input Impedance
Line input L&R , LFE
Line input L&R , LFE
>10
K ohms
N/A
Nominal over the audio BW
Reference only
Filters
Low Pass (fixed or variable)
Variable
--
±2dB
2nd order variable + 2nd order fix, Range
50-110 Hz
50-110 Hz
Subsonic filter (HPF)
Fixed
±2dB
Friend circuit
Fixed
±2dB
Limiter (yes/no)
YES
--
N/A
THD at Max. Output Power
N/A
--
N/A
Features
LFE Input
LFE Input
YES
Functional
BW Limited to 500 Hz,
Phase Switch (yes/no)
YES
--
Functional
Volume pot Taper (lin/log)
LOG
--
Functional
LP Variable Crossover contro
YES
Functional
Range 50-110 Hz
ATO
YES
Functional fs
Input Configuration
Line In (L,R)
L ,R
--
Functional
RCA inputs: RED-WHT, L , R Summed to
Mono
Mono
Line level in LFE
LFE
Functional
Single connector
Signal Sensing (ATO)
Auto-Turn-On (yes/no)
Auto-Turn-On (yes/no)
YES
--
Functional
ATO Input Frequency
50
Hz
Functional
ATO Level Line Level in (L,R
1.5
mV
Functional
2mV@50Hz into Line Input w/ 1 ch.
driven
driven
BALBOA series SUB10
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