Rockville RBG15FA User manual

RBG15FA / RBG18FA
OWNER’S MANUAL

Thank you for purchasing this Rockville Bass Gig series Folded Horn pro audio speaker.
We are very proud to bring you what we consider to be the absolute best value line pro
audio speakers. This project has been a culmination of years of development involving
a team of dreamers, engineers, designers and marketing gurus. Proudly conceived and
developed in the USA, Rockville pro audio speakers are designed and engineered by a
team of music enthusiasts, DJ’s and musicians.
We have spared no expense in manufacturing these speakers to meet the highest quality
standards. With proper care and installation this unit will provide you with the highest
levels of sound quality. We hope that this unit will bring you years of performance and
reliability.
Our goal to you and to your audience is to hear “live performance sound” the way it was
meant to be experienced.
Please read this installation guide carefully for proper use of your Bass Gig series Folded
Horn pro audio speaker. Should you need technical assistance during or after your instal-
lation please call our technical help line at 1-646-758-0144, Monday through Friday, 9am
to 5pm EST.

BASS GIG
Features
RBG15FA / RBG18FA
Specications
RBG15FA
Specications
RBG18FA
• Folded horn design powered subwoofer
• Power-On and Signal Input LED Indicators
• Signal Input LED Indicator
• Clip Limiter Circuitry with LED Indicator
• Balanced XLR
• Balanced XLR thru/output jacks for parallel connections
• Passive heat sink with heat sensitive variable speed auto
turn-on fan for cooling
• Subwoofer Crossover 50Hz-250Hz Low Pass
• Subwoofer Level Adjustment
• Subwoofer Phase Control
• Built-in XLR Balanced High Pass Preamp Output @ 120Hz
• Variable voltage (1 10v - 220v)
• Built-in pole mount socket
• Built-in carrying handles
• Heavy-duty 2" (RBG-15FA) / 3" (RBG-18FA) locking caster wheels
• High density MDF construction
• Dimensions: RBG-15FA - 23.7" x 17.2" x 23.5" / RBG18FA - 35.4" x 28.7" x 29.1"
• Weight: RBG-15FA - 83Lbs / RBG-18FA - 130Lbs
• 600 Watts RMS / 1200 Watts Program / 2400 Watts Peak
• 15" Woofer with 110oz Magnet and 4" Voice Coil
• Frequency Response: (+/-3dB) 30Hz - 120Hz
• Maximum SPL @ 1w / 1m: 130dB Peak / 127dB Continuous
• 750 Watts RMS / 1500 Watts Program / 3000 Watts Peak
• 18" Woofer with 130oz Magnet and 4" Voice Coil
• Frequency Response: (+/-3dB) 25Hz - 120Hz
• Maximum SPL @ 1w / 1m: 135dB Peak / 129dB Continuous

RISK OF ELECTRIC SHOCK
DO NOT OPEN
IMPORTANT SAFETY INSTRUCTIONS
•To reduce risk of electric shock, never open the unit. There are no user serviceable
parts, refer service to an authorized Rockville service center.
• Do not expose this unit to any kind of moisture.
• Unit should be situated away from heat sources.
• Do not obstruct vents or exhaust fan.
• Please ensure that the unit is situated in a properly ventilated area.
• Make sure the unit is placed on a level and stable surface. This unit should not be
mounted to a wall or ceiling.
• If this product is equipped with a polarized alternating current line plug (a plug having
one blade wider than the other), it will t into the outlet only one way. This is a safety
feature. If you are unable to insert the plug fully into the outlet, try reversing the plug
If the plug should still fail to t, contact your electrician to replace your obsolete outlet
Do not defeat the safety purpose of the polarized plug. If this product is equipped with
a three-wire grounding type plug, a plug having a third (grounding) pin, it will only t
into a grounding type power outlet. This is a safety feature. If you are unable to insert
the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not
defeat the safety purpose of the grounding type plug.

BASS GIG
IMPORTANT SAFETY INSTRUCTIONS
•To reduce risk of electric shock, never open the unit. There are no user serviceable
parts, refer service to an authorized Rockville service center.
• Do not expose this unit to any kind of moisture.
• Unit should be situated away from heat sources.
• Do not obstruct vents or exhaust fan.
• Please ensure that the unit is situated in a properly ventilated area.
• Make sure the unit is placed on a level and stable surface. This unit should not be
mounted to a wall or ceiling.
• If this product is equipped with a polarized alternating current line plug (a plug having
one blade wider than the other), it will t into the outlet only one way. This is a safety
feature. If you are unable to insert the plug fully into the outlet, try reversing the plug
If the plug should still fail to t, contact your electrician to replace your obsolete outlet
Do not defeat the safety purpose of the polarized plug. If this product is equipped with
a three-wire grounding type plug, a plug having a third (grounding) pin, it will only t
into a grounding type power outlet. This is a safety feature. If you are unable to insert
the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not
defeat the safety purpose of the grounding type plug.
Any horn shape which gradually expands from a small inlet to a large opening will act as
a physical amplier for sound applied to the smaller end. When coupled to a loudspeaker
it improves its eciency, but a full-size horn that would work at low frequencies would
make for an impractically large cabinet. By folding the horn back on itself, you can signi-
cantly reduce its size, without compromising the eect. When this technique is is used to
take energy from the back of a speaker and redirect it to the front, you have a folded horn
bass reex cabinet. Below is an example of a basic folded horn design.
What is a Folded Horn woofer you ask?

LINE IN
BAL
R L
MIC IN BAL
LINE IN
LINE OUT BAL
BAL
POWE R
230V
230V
POWE R
AC230V/115V 60Hz/50H z
T3.15A
250V
115V
LIMI T
MASTER
TREBLE
BAS S
GAI N
VOL
RL
010
01 0
010
-15 +15
-15 +15
RISKOF ELECTRIC SHOCK
DONOT OPEN
MIC IN BAL
LINE IN
LINE OUT BAL
BAL
POWE R
230V
230V
POWE R
AC230V/115V 60Hz/50H z
T3.15A
250V
115V
LIMI T
MASTER
TREBLE
BAS S
GAI N
VOL
RL
010
01 0
010
-15 +15
-15 +15
RISKOF ELECTRIC SHOCK
DONOT OPEN
Folded Horn w/Two Sound Reinforcement Speakers in High Pass
Conguration
Hz
LEVEL CROSSOVER
SUBWOOFER
HIGH PASS 120Hz
FULL RANGE
HIGH PASS PREAMP OUTPUT
PARALLE
OUT
IN
PHASE
50
NORMAL1 80°
250MIN MAX
LR
LR
Rockville RPG-15
Signal output from
mixing board to
Bass Gig subwoofer

BASS GIG
MIC IN BAL
LINE IN
LINE OUT BAL
BAL
POWE R
230V
230V
POWE R
AC230V/115V 60Hz/50H z
T3.15A 250V
115V
LIMI T
MASTER
TREBLE
BAS S
GAI N
VOL
RL
010
01 0
010
-15 +15
-15 +15
RISKOF ELECTRIC SHOCK
DONOT OPEN
MIC IN BAL
LINE IN
LINE OUT BAL
BAL
POWE R
230V
230V
POWE R
AC230V/115V 60Hz/50H z
T3.15A 250V
115V
LIMI T
MASTER
TREBLE
BAS S
GAI N
VOL
RL
010
01 0
010
-15 +15
-15 +15
RISKOF ELECTRIC SHOCK
DONOT OPEN
LINE IN
BAL
R L
Folded Horn w/Two Sound Reinforcement Speakers in High Pass
Conguration
Folded Horn Subwoofer
w/Two Sound Reinforcement
Speakers in Full Range
Conguration
FULL RANGE
PARALLEL
OUT
THRU
IN
LR
Rockville RPG-15
Signal output from
mixing board to
Bass Gig subwoofer

Rockville RPG-15
Rockville RPG-15
Folded Horn w/Dual Speaker Conguration
Signal output from
mixing board to
Bass Gig subwoofer

BASS GIG
A balanced line is a three-conductor system in which two signal wires carry an equal, but
opposite voltage with respect to the ground wire. The ground wire acts only as a shield
and does not carry any audio signal current. Outside interference is either shielded from
the internal signal conductor, or if it gets into the cable is cancelled out by the opposite
signals at the receiving end. Balanced connections are preferred for long cable runs.
An unbalanced cable is a two-wire system where the shield (ground wire) acts as one of
the current carrying signal conductors. The center conductor enclosed by the shield is
commonly known as the “hot” conductor. Unbalanced audio cables do not reject noise
as well as balanced lines. Unbalanced lines are typical in home hi- type systems and on
the outputs of electronic musical instruments. These work well if the distance between
the components is short, the signal level is relatively high and all of the electronics used
in the system are plugged into the same AC outlet.
Balanced vs Unbalanced Lines

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