RUBICON
302
502
1002
Power Amplifiers
Owners Manual
and
Installation Guide
Congratulations!
You now own the Soundstream RUBICON amplifier, the product of an un-
zompromising design and engineering philosophy. Your Soundstream
XUBICON amplifier will outperform any other amplifier in the world.
[0 maximize the performance of your system, we recommend that you thor-
yughly acquaint yourself with its capabilities and features. Please retain this
nanuat and your sales receipt for future reference.
Soundstream amplifiers are the resuit of American innovation and the high-
3st quality control standards. When properly installed, they will provide you
vith many years of listening pleasure. Should your amplifier ever need ser-
rice or replacement due to theft, please record the following information which
vill help protect your investment.
Viodel and Serial # —
Jealers Name — __
Jate of Purchase _
nstallation Shop ———
nstallation Date
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Table of Contents
Design Features .........................everiirei Debian emana .D4-5
Rubicon302 Amplifier Diagram .....................1-...2..2.eemeeereee p6-7
Rubicon502 and 1002 Amplifier Diagrams .......................-..————.—. p8-9
Crossover Adjustments cs ceascrersrer creer. P 1Q
Hawkins Bass Control"M Theory and Use re p 11-1;
Installation: Speaker Output ModSS er p14
Installation. Balanced / Unbalanced Inputs ......... rrr .p 15
Installation: Wiring and Diagram essen EEE AR p 16-1
Installation: Mounting ...................... eae ‚ р 18
Installation: Level Setting and Front Spoiler. ....................—.—. p 19
Protection Circuitry and Troubleshooting ..........................—..... p20
Specifications ...................... e... ria aa noe eee p21
NO ES re eee eee, ‚ р 22 - 2:
Design Features
RUBI™{Rapid-Use Branched Impulse) This new proprietary power sup-
ply topology eliminates "power sags” during low frequency reproduction
by rapidly increasing the duty cycle, stabilizing the power supply and
allowing it to deliver the power required when reproducing low frequen-
cies, Also, greater reserve gate power is stored for low voltage condi-
tions that occur during extreme conditions.
STACT™ (STabilized Apex Current Topology) Reduces power supply
stress by 50%. Typical designs degrade the stereo image due to phase
reversal of even-order harmanic distortion that occurs between the in-
verted channels. In the STACT design, inversion is done at the power
amplifier drive stage. Since the fully symmetrical power amplifier pro-
duces no even-harmonic distortion itself and all preamplifier circuitry is
run completely in-phase, no even harmonic distortion phase reversal
OCCUTS,
Trident™ Protection Topology provides three types of protection:
1. Output protection against short circuits or improper loads.
2. Ground fault detection: Shuts down the amplifier when a significant
voltage (> 5Volts) fluctuation occurs between electrical (turn-on lead)
and battery ground.
3, Thermal Protection: Puts the amplifier into thermal rollback or shuts
the amplifier down in extreme thermal conditions.
Hawkins Bass Control (302) Provides focused subwoofer boost and
routes wasted subsonic power to the audible bandwidth. The RUBICON302
has the variable version of Hawkins Bass Control which allows you to
boost bass from 0 to 9dB at 45Hz. A built-in subsonic filter at 45Hz helps
protect the speakers.
Hawkins Bass Control (502 and 1002) Fully adjustable subwoofer
equalization circuit providing frequency and boost ("Q") adjustment for
optimum subwoofer performance. A frequency tracking subsonic filter
protects woofers from potentially harmful low frequency information and
maximizes output in a usable range.
Harmonic Bass Alignment™ The 2nd and 3rd order harmonic peaks
are critically aligned to fundamental peaks at low frequencies. This pro-
duces tighter, more accurate bass reproduction.
a
Drive Delay II™ Amplifier section powers up 2 to 3 seconds after the
power supply eliminating turn-on and off pops. The turn off process is
reversed: Amplifier section turns off first, followed by the power supply.
Output Clipping Indicators (502 and 1002) indicate clipping on the
output stage of the amplifier. Monitoring the clipping indicators allows
the user to achieve maximum Sound Pressure Level without clipping
the amplifier.
Auto High Current™ automatically matches the amplifier to the load
being driven allowing greater system flexibility, greater output, higher
reliability, and high efficiency 1 ohm (stereo) operation.
Chassisink™ All transistors are ideally located and sandwiched be-
tween the circuit board and the heatsink to provide cool efficient ampli-
her operation.
Fully Balanced 6-pin DIN Input (502 and 1002) for professional-qual-
ity performance and noise cancellation, The б-р! DIN plug carries (+)
signal information for Left and Right channels, audio ground, and + 15
Vdc to operate the Soundstream BLT / BLT4 Balanced Line Transmit-
ters.
Continuously Variable Crossover Networks: 12 dB/Octave highpass
variable from 70 to 160 Hz, and 24 dB/Octave lowpass crossovers vari-
able from 55 to 220 Hz on (502 and 1002). 12 dB/Octave highpass
variable from 50 to 200 Hz, and 24 dB/Octave lowpass crossovers vari-
able from 40 to 160 Hz on (302).
Flexible Dual Input Level Control (502 and 1002) allows 300 mV to
2 V input sensitivity. Separate Left and Right level controls allow user to
aptimize system level control.
Removable Front Spoiler allows for stealth installation of RCA, Bal-
anced Line, Speaker and Power wiring.
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Key to Callouts
Power LED - Indicates amplifier power, either in High Power or Auto
High Current.
Subsonic/Hawkins Bass Control Switch - Selectable high pass filter
frequency range. Select"SUB SONIC" to engage the Sub Sonic filter at
13Hz with no boost. Select "Hawkins Bass Control" to engage the Sub
Sonic filter at 45 Hz with available boost.
ST/MONO Switch - "MONO" for bridged mono operation with both
input signals (right and left summed). “ST for normal stereo or mixed
mono operation.
All Pass, High Pass, Low Pass XOVER Switch - Selectable low pass
filter for driving subwoofers at 89Hz, Note: Do not have the “LP
XOVER" and the "H.P. XOVER" engaged at the same time.
FUSE - Main power supply fuse. Warning: Replace only with the same
value fuse!
+12V - Connected to a fuse or circuit breaker, then to the battery's
positive terminal
GND - Main ground connection. Bolt to a clean chassis point in the
vehicle.
REMOTE - Remote turn-on input from the head unit. Accepts +12.
Speaker Connection Terminal - Speaker connections for Ch's 1 & 2.
Hawkins Bass Control “Boost” Adjustment - Varies from 0 to +9 dB
of boost when the Hawkins Bass Control circuit is engaged.
XOVER Filter Adjustment - Frequency adjustment control for the High
Pass or Low Pass filter.
Input Level - Input level control.
RCA Inputs - Right and Left channel RCA inputs.
RCA Line Outputs - Full range line level outputs to drive an external
amplifier.
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11.
12.
13.
14.
15.
16.
17,
18.
19,
KEY TO CALLOUTS
Power LED - Indicates amplifier power, either in High Power or Auto High
Current,
Clip Indicators - Indicates the signal output level is too hi gh and the output
stage of the amplifier is clipping.
Subsonic, Hawkins Bass Control, H.P. XOVER Switch - Selectable high
pass filter frequency range. Select “SUB SONIC" to engage the Sub Sonic
filter with no boost. Use the knob indicated by callout #12 to set the frequency:
13-30Hz). Select "Hawkins Bass Control” to engage the Sub Sonic filter with
available boost. Use the knob indicated by callout #12 to set the frequency:
30 Hz to 70 Hz. Select "H.P. XOVER" lo engage the ampliñer's high pass filter
for running satellite speakers. Use the knob indicated by callout #12 lo set
the frequency: 70-160 Hz.)
Low Pass XOVER Switch - Selectable low pass filler for driving subwoofers.
Use the knob indicated by callout #13 to set the low pass frequency. Vote:
Do not have the "LP, XOVER" and the "HP. XOVER" engaged af the same
time.
MONO/SUM/ST Switch - "MONO" for bridged mono operation with a single
input signal {right channel only). *SUM" for bridged mono operation sum-
ming two input signal (left and right). "ST" for normal stereo operation.
Left Channel Balanced/Unbalanced Input Selector - Select "BALANCED"
to use the 6 pin Balanced signal input. Select "UNBALANCED" to use the
RCA signal inputs.
Right Channel Balanced/Unbalanced Input Selector - Select "BALANCED"
to use the 6 pin Balanced signal input. Select "UNBALANCED" to use the
RCA signal inputs.
RCA Inputs - Right and Left channel RCA (Unbalanced) inputs.
Balanced Signal Input Connector - 6-Pin Balanced input connector for use
with the Soundstream BLT/BLT4 Balanced Line Transmitter.
Input Levels - Independent Left and Right input level controls.
Hawkins Bass Control "Boost" Adjustment - Varies from 0 to +9 de of
boost when the Hawkins Bass Control circuit is engaged,
High Pass Filter Control Adjustment - Frequency adjustment control for the
High Pass filter, the Hawkins Bass Control filter, or the Sub Sonic filter.
Low Pass Filter Control Adjustment - Frequency adjustment control for the
Low Pass filter.
Line Outputs - Line level RCA oulputs to drive an external amplifier (Note:
The outputs are full-range.)
Speaker Connection Terminal - Speaker connections for Ch's 1 & 2.
REMOTE - Remote turn-on input from the head unit. Accepts +12V.
GND - Main ground connection, Bolt to a clean chassis point in the vehicle.
+12V - Connected to a fuse or circuit breaker, then to the baite My 5 positive
terminal,
FUSE - Main power supply fuse. Warning: Replace only with the same value
fuse!
Lf UIIUVEL AUD THIET S
The RUBICON302, 502 and 1002 amplifiers incorporate an on-board
staggered electronic crossover, with RCA outputs to drive an external
amplifier. No external electronic crossover is necessary. The high and low
nass portions of the crossover can be set independently of one another.
To engage the High Pass filter on the Rubicon502 and 1002, set the left
crossover switch on the top of the amplifier to "H.P. X-OVER", and use the
frequency adjustment knob marked "H.P. X-OVER”. To engage the Low Pass
filter, set the left crossover switch to either “SUB SONIC” or "HAWKINS
BASS CONTROL" (see pages 11-12 for more details), and setthe right cross-
over switch “L.P. X-OVER" to the “IN” position.
Onthe Rubicon302 to engage full range operation set the crossover switch to
“AP” To engage highpass or lowpass filtering set the crossover to HP" ar
"LP" and use the frequency adjustment dial labeled "X-OVER" to set the
frequency.
12 mee sais
A BOAL Pass
In many car audio installations, there is a tendency for a "midbass boom.”
Because of their interior dimensions, most cars will resonate or ring at these
midbass frequencies. If we design the system so there is reduced outputin
this region, the final response is very smooth and natural sounding. The high
pass crossover is independently variable from 70 to 160 Hz on the Rubicon 502
and 1002, and 50 to 200 Hz on the Rubicon302, at 12 dB/Octave. The low
pass crossover on the Rubicon502 and 1002 is independently variable from
55 to 220 Hz and 40 to 160 Hz on the Rubicon302 at 24 dB/Octave.
For initial crossover setup, try setting the low pass filter to approximately 75
Hz, and the high pass filter to approximately 120 Hz. Change the crossover
points to accommodate a good mixture of frequency response, power han-
dling, and personal preference.
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Hawkins Bass Control - Theory and Use (302;
Hawkins Bass Control (variable) is a unique subwoofer contral circuit in-
cluded with the Soundstream RUBICON302 amplifiers. It is capable of re-
maving subsonic energy in program material below 45 Hz
at 12 dB/Octave, while boosting subwoofer frequencies. The
circuit consists of two controls. One engages a subsonic [III
High Pass filter at 45 Hz, and the other adjusts the amount | 3% - ks
of boost from 0 to +9 de. BT
The Boost control adjusts the amount of level applied at pri
the set frequency, and is adjustable from 0 to +9 dB (see CONTROL
figure 2). When the boostis setto 0, Hawkins Bass Control O
acts as a sub sonic filter only. The simple act of removing ая
potentially harmful low frequencies can improve system out- | i
put by as much as 3 dB.
Application A
Subwoofer drivers in general have excel- но
lent power handling characteristics over *
their operational bandwidth. This band- |
width is determined by many factors, in-®.,
cluding driver design, and enclosure type. 5
It is possible to overdrive any subwoofer “
driver by sending powerful signals outside e
of its operational bandwidth. These po-
tentially damaging signals can be removed
by adding a subsonic filter. Figure 3 shows the effectiveness of the Hawkins
Bass Control on woofer excursion in a vented enclosure. The woofer travels
7.5mmat 10 Hz. With Hawkins Bass Control properly adjusted, this excur-
sion can be reduced to less than 1 mm. This is of great benefit to lowering
woofer distortion and increasing output.
FIG. 2 VARIABLE BOOST
Adjustment
An easy method of optimizing your existing subwoofer enclosure with
Hawkin's Bass Control is as follows: o
1. Adjust the boost control to full an
counter clock-wise (0) position. xa
2, Set the bass control switch to a
“HAWKINS BASS CONTROL”, 20
3. Play moderate to loud bass mate-
nal. FIG, 3 Limited Excursion
4. Adjust the boost (Q) control until
you reach the desired level.
11
HBC - Theory and Use (502 4 1002)
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20 Hz,
FIG. 1 BASS CONTROL
The frequency control (Hz) adjusts
the starting point of the subsonic fil-
ter. On the RUBICONS02 and 1002,
the high pass filter has two frequency
ranges. When the bass control
switch is set to "SUB SONIC”, the
high pass filter frequency can be ad-
justed from 13 Hz up to a maximum
of 30 Hz. In this setting, no boost "Q”
control is available, This control is
useful for setting the lowest frequency
that your subwoofer will see (see fig-
ure 1). When the bass control switch
is set to "HAWKINS BASS CON-
TROL", the high pass filter frequency
can be adjusted from 30 Hz to a maxi-
mum of 70 Hz. In this setting, there
is an available boost control of O to
+9 dB,
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FIG. 4 VARIABLE BOOST
Hawkins Bass Control (parametric) is a unique
subwoofer control circuit included with the
Soundstream RUBICONSOZ and 1002 amplifiers.
Itis capable of removing subsonic energy in pro-
gram material while boasting subwoofer frequen-
cles. The circuit consists of two controls, One
110 adjusts the frequency of operation and the other
adjusts the range of boost, With both controls
adjusted fully counter-clockwise, no boost is ap-
plied and the amplifier is flat in response down to
FIG. 2 VARIABLE "0"
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FIG, 3 VARIABLE HIGH PASS
The Boost control adjusts the amount
of level applied at the set frequency.
This is adjustable from flat (0dB) to +2
dB. (See figure 2)
When the Boost is set to 0, Hawkins
acls as a sub-sonic filter only. (See
figure 3) The simple act of remaving
potentially harmful low frequencies
can improve system output by as
much as 3 dB. (see figure 4)
12
Application
Subwoofer drivers in general have
excellent power handling character-
istics over their operational band-
width, This bandwidth is determined
by many factors, including driver de-
sign, and enclosure type. It is pos-
sible to overdrive any subwoofer
driver by sending powerful signals
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FIG. 5 LIMITED EXCURSION
outside of its operational bandwidth. These potentially damaging signal:
can be removed by adding a subsonic filter. Figure 5 shows the effective
ness of the Hawkins Bass Control on woofer excursion in a vented enclo
sure. The woofer travels 7.5 mm at 10 Hz. With Hawkins Bass Contre
properly adjusted, this excursion can be reduced to less than 1 mm. This i:
of great benefit to lowering woofer distortion and increasing output.
Adjustment
An easy method of optimizing your existing subwoofer enclosure witl
Hawkin's “Hz” control is as follows.
6 N =
Adjust frequency and boost control to full CCW position.
Set the bass control switch to "HAWKINS BASS CONTROL”.
While listening to music with strong bass content at a moderate level
slowly adjust frequency control clockwise. Listen for a reduction of bas:
response. Now, rotate frequency control slightly backwards. This serve:
the purpose of removing the “subsonic” bass energy.
With Soundstream's Hawkins Bass
Control, the boost and frequency con-
trol can provide virtually any combina-
tion of boost and cut to suit your de-
signs. 50, Hawkins Bass Control can
provide the “talloring” needed for any
type of “assisted” design and any
woofer in any type of installation.
13
EQquency
FIG. 6 VARIOUS SETTINGS
INSTALLATION STEP 1 )
SELECTING THE SPEAKER OUTPUT MOD
The RUBICON302 amplifier has the ability to operate in stereo, mixed mong or
mono mode. For stereo or mixed mono operation switch the amp to stereo.
For bridged or mono applications switch the amplifier to mono. In mono mode
the RCA inputs are automatically summed, so use both inputs.
The RUBICONS02 and 1002 amplifiers have the ability to =
the following modes: y to operale in any one of
stereo (STACT / Mixed Mona): Use this mode for either stereo operation (left
and right channels) or for Mixed Mono operation (stereo left and ri
3 right ch
plus bridged mono for a subwoofer), ght channels
Summed Mono: Use this mode to get a bridged mono culput while usi
le
the left and right inputs and gain controls. i Using both
Bridged Mono: Use this mode to gel
; a bridged mono output while usi
the right channel input and gain contro put while using only
| (for use with a singular mono Input).
Please follow the wiring schemes below for the correct operation:
SUMMED MONO
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MIXED MONG
STEREO TE.
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14
« INSTALLATION STEP 2 |
BALANCED / UNBALANCED INPUT
The RUBICONS02 and 1002 amplifiers have the ability to accept either a stan-
dard Unbalanced RCA signal input, or a Balanced "Pro Audio” style input signals
with the use of the Soundstream BLT Balanced Line Transmitler or some other
balanced line audio source. Before installing your system, you should decide
upon which signal type you wish to run. There are advantages to both:
т BA E I
1. Most preamplifier / source © E. Signal to Noise Ratio
units have Unbalanced RCA 00). ; ;
lat
| ADVANTAGES outputs (Industry Standard). 2 e ae cancellation
e de mos 3 Immune to noise radiated in the
| car audio environment
The RUBICON amplifiers' signal inputs accept a wide range of input level: from
300 m'Vrms to 5,0 Vrms for both Balanced and Unbalanced inputs. For the best
SN Ratio, we recommend that the input level controls be set as far down as
possible (rotated counter-clockwise), while maintaining an acceptable level of
output.
Using the “Unbalanced” RCA Input
When using the Unbalanced RCA input, the RIGHT channel input signal switch
MUST be in the "UNBAL" position. Also, when first installing the amplifier using
this input configuration, we suggest that the left channel input signal switch be in
the "UNBAL" position as well. If you experience alternator wine or other instal-
lation noise with both switches in the "UNBAL" position, try moving the LEFT
channel input signal switch to the “BAL” position. This should remove any
system noise due to the installation,
Using the “Balanced” RCA Input
When using the Balanced G-pin DIN audio input, both switches MUST be in the
"BAL" position. Also, we recommend that when using this input configuration, the
input level controls be set ta the “minimum” position (rotated counter-clockwise),
The system gain should then be adjusted on the BLT Balanced Line Transmitter,
other balanced line audio source. For the pin configuration, see the diagram
below:
- — BALANCED
MOTE TACO ~~ -16 Vols—f~2 — +15 vor
fan's ho ly ae - Left Signal — - 7 - Right Signal
lie VIBW [CORI : + Left signal. ——< e Right Signal
Shield
15
( INSTALLATION STEP 3
WIRING
POWER AND GROUND
To ensure maximum output from your RUBICON amplifier, use high quality, low-
loss power and ground cables and connections. The RUBICON amplifiers will
accept up to 4 gauge power and ground cables. Determine from the chart below
the minimum gauge power and ground wire for your application.
Up fo 10° Up to 20°
RUBICON302 4 or 5 quage 4 gauge only
RUBICONSD2 4 or § guage 4 gauge only
RUBICONT002 4 gauge only 4 gauge only
CIRCUIT BREAKERS AND FUSES
EXTERNAL
Like all audio components, the RUBICON amplifiers must be fused near the
battery. A fuse or circuit breaker must be located within 18" of the battery. This will
prevent a fire in the event of a shored cable. See the chart below to determine the
correct fuse value.
INTERNAL
The RUBICON amplifiers are fused with an automotive-type or Maxi-fuse. In the
event of a blown power supply fuse(s), replace with the correct value fuse found in
the chart below. Never replace the fuse with a higher value than what is sup-
plied. This may result in amplifier damage and will void the warranty!
RUBICON Amplifier Fuse Values
Amplifier Fuse Battery Fuse / Circuit Breaker
RUBICON302 (2) 20 amp automotive 50 amp
RUBICONSOZ (2) 30 amp automotive 80 amp
RUBICONT002 80 amp Maxi-fuse 100 amp
REMOTE TURN-ON
Connect the “Remote” line to the tum-on lead from the source unit. When +12
Volts is received, the amplifier will turn on.
SIGNAL CABLE
Use a high quality cable that will be easy to install and has minimal signal loss fc
guarantee optimum performance.
SPEAKER CABLE
The RUBICON amplifiers will accept up to 8 gauge speaker cable. Use a high
quality, Nexible, mulli-strand cable for best performance and longevity.
SAMPLE WIRING DIAGRAM
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INSTALLATION STEP 4 )
INSTALLATION AND MOUNTING
AMPLIFIER LOCATION
The RUBICON amplifiers employ highly efficient circuitry, a custom-engineered
heat sink, and a unique Chassisink construction to maintain lower operating
temperatures. Additional cooling may be required ¡f the amplifier is located in a
lightly confined area or when driving especially low impedance loads at extremely
high levels.
When mounting the amplifier, it should be securely mounted to either a panel in
the vehicle or an amp board or rack that is securely mounted to the vehicle. The
mounting location should be either in the passenger compariment or in the trunk
of the vehicle, away from moisture, stray or moving objects, and major electrical
components. To provide adequate ventilation, mount the amplifier so that there
are at least two inches of freely circulating air above and to the sides of it,
MOUNTING THE AMPLIFIER
a. Using the amplifier as a template, mark the holes on the mounting surface.
b. Remove the amplifier and drill the holes for the mounting screws.
C. Secure the amplifier to the mounting surface using the supplied hardware.
WIRING
а,
Run and connect the audio signal and remote turn-on cables to the ampli-
fier from the source unit.
Bb. Carefully run the positive cable rom the amplifier to a fuse or circuit breaker
within 18” of the baltery,
© Connect the Пизе or circuit breaker lead to the battery. Leave the circuit
breaker off or the fuse out until everything is bolted down.
d. Secure the ground cable lo a solid chassis ground on the vehicle. ft may be
necessary lo sand paint down to raw metal for a good connection.
ë& Double check each and every connection!
f, Re-connect the fuse or circuit breaker.
POWER UP
Power up the system, there may be a 2-3 second delay from the time the source
unit is turned on to the time that the amplifier turns on, which is normal. Once the
amplifier LED is on and the source unit is playing, you should have sound coming
from the speakers.
|
INSTALLATION STEP 5 |)
LEVEL SETTING
The input levels are adjusted by means of the input level controls cua À с
front of the amplifier. This is a unique dual-stage circuit that adjusts both leve de
gain. This topology maintains better S/N Ratio even when using sources wi
minimal output.
ideal situation, all components in the audio system reach maximum
hive output at the same time. If you send a distorted signal to an Shp Г
it is simply going to amplify distorted information. The same holds true i
outboard processor or crossover begins lo distort before you have ep :
output from the amplifier. By setting all components to reach clipping alí oe $
lime, you can maximize the output of your system. For the RUBICON ampliners,
follow these steps for setting the input levels:
1. Tum the amplifiers’ input levels to minimum position (counter-clockwise)
2. Set the source unit volume to approximately 3/4 of full volume. | ue
3. While playing dynamic source material, slowly increase the amplifiers’ inpu
level until a near maximum undistorted level is heard in the system.
ipping indi | know when the output of
The clipping indicators on the top of the amplifier let you |
the mp NE is reaching its maximum level, and has begun to clip (502 and 1002
only).
FRONT SPOILER
Once the amplifier is installed and the proper levels sel, place the front spoiler in
position, and secure it on using the supplied hardware.
19
TRIDENT PROTECTION CIRCUITRY
Your Rubicon amplifier is protected against both overheating and short |
circuits by means of main power fuses and the following circuits:
+ Auto High Current power supply
+ Speaker Output Protection
+ Ground Fault Differential
+ Smart Power Supply Thermal Rollback & Thermal Protection Circuit
NOTE: If you experience blown main power supply fuses, it is likely
that the amplifier is seeing a dead short, either in the speaker wire or in
the speaker itself. Rectify the problem before blowing multiple fuses!
DO NOT increase values beyond the original fuse value! Doing so will
void your warrant and may damage your amplifer.
TROUBLESHOOTING
PROBLEM
CAUSE
| No Sound and power LED is not lit
|. No power or ground at the amp.
2. Mo remote tum-on signal
3. Blown fusa near the battery
| No sound, power LED is lit.
1. No signal input
à The AIRBASS/Accessory switch
is in the "IN" position. Move it to the
| Repeatedly blow amp fuse;
frequent activation of Smart Power
Supply Circuit
1. Speaker or leads may be shorted
2. Verify adequate amp ventilation
Mot enough input sensitivity while
using the Balanced Input
Ba sure both Left and Right input
signal switches are set to the "BAL"
position,
Very little output, or output is
muffled.
Make sure that both the LP. and
the H.P. crossvers aren't
engaged
| Left and Right “Clip” indicators
lighting
Output signal level is too high and
the amplifier output is clipping
Reduce the level either at the source
or at the input level controls.
Alternator whine while using
Unbalanced RCA inputs
| 2. Try the Left Input Signal switch
1. Make sure the Right Input Signal
Switch is in the "UNBAL" position.
in the "BAL" and "UNBAL” position:
leave the switch in the quietest
setting. This will not effect the
performance of the amplifier,
—
x
Specifications
4 £) Stereo 2 £) Stereo 1 0 Stereo
. TOTAL
MODEL | (8 ©2 Bridged) | {4 © Bridged] | (2 2 Bridged) POWER
(12.6 Vdc) (14.4 Vdc) (14.4 Vdc)
TEW x 2 150W x 2 1504 x 2 300 Watt
Siz (150W x 1) (S00W x 1) | (300W x 1) ue
100W x 2 250W x 2 250 x 2
02 (200W x 1) S00Wx1) | «soowx1 | 500 Watts
2004 x 7 500YW x 2 5006 x 2 1000 Watt
dae (400W x 1) (1000W x 1) | (1000W x 1) 0 2
THD <0.1%
Signal to Noise =100 dB
Frequancy Response 20 Hz to 20 kHz + 0.5 dB
Stereo Separation >90 dB
Damping >200
Input Sensitivity
Input Impedance
300 mY to 5.0 Volls
10k Ohms
Crossover Specifications
Rubicon302
Low Pass: 40 Hz - 160 Hz at 24d B/Octave
High Pass: 50 Hz - 200 Hz at 12dB/Octave
Rubicon502 and 1002
Low Pass: 55 Hz - 220 Hz at 24 dB/Octave
High Pass: 70 Hz - 160 Hz at 12 dB/Octave
Hawkins Bass Control
‘Rubicon302
Sub Sonic Filter: No boost, High Pass filter at 13 Hz.
Hawkins Bass Control: Oto +9d8 Boost Boost and Sub Sonic filter
frequency at 45 Hz.
Rubicon502 and 1002
sub Sonic Filter: No boost, High Pass filter from 13 to 30 hz.
Hawkins Bass Control: 0 to +9 de Boost; Boost and Sub Sonic filter
variable from 30 to 70 Hz.
Dimensions (W x Dx H)
RUBICON302: 8.5" X 9.8" X 2.25"
RUBICONSOZ: 11.0" X 9.8" X2.25"
RUBICON1002: 16.0" X 9.87 X 2.25
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