1272X / 1275X
Loudspeaker
Monitor Systems
Reference / Owner’s Manual
for 1272X /1275X
P/N 053996 REV A
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1272X / 1275X
LOUDSPEAKER MONITOR
SYSTEMS
INTRODUCTION
Thank you for your purchase of a 1272X / 1275X
loudspeaker monitor system from Fender® Pro Audio.
We are sure you will find it both a unique and effective
sound reinforcement product, providing years of
trouble-free service day in and day out.
All Wood Construction with Sturdy
Dado Joints
High Current 1/4” Phone Jacks
Metal Corners and Rubber Feet
1272X / 1275X loudspeaker monitor systems are
professional, full-range, two-way, compact
loudspeaker monitors designed for both permanent
or portable sound reinforcement requirements. With
a wide response, low distortion and controlled
directivity, 1272X / 1275X loudspeaker monitor
systems are designed to form the basis of everything
from a small public address system to the nightly
rigors of a “working band’s” sound system. After
moisture sealing, the 1272X / 1275X loudspeaker
monitor systems are covered in tough black
indoor/outdoor synthetic carpet covering. Likewise,
1272X / 1275X loudspeaker monitor systems also
feature metal corners and rubber feet for a longer life
and lasting looks.
Level Control for Adjusting Levels at
the Cabinet
Three Angles of Orientation: 30º, 60º
and Vertical for Side Fill Use
Tough Indoor / Outdoor Synthetic
Carpet Covering
Only the finest components are used to provide
maximum efficiency and response. In order to more
fully understand the operational characteristics of your
1272X/ 1275Xloudspeakermonitorsystemenclosure,
please read through this operational user’s guide.
CAUTION: Almost all speakers produce strong
magnetic fields which may interfere with the
normal operation of nearby electronic devices,
includingtelevisionsandcomputervideomonitors.
To reduce or eliminate interference, increase the
distance between this product and other nearby
electronic devices.
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SPEAKER WIRING AND CONNECTIONS
Parallelorseriesarethetwobasicwayswhichmultiple Keep in mind, power and audio signal cables are the
speakerscanbeconnectedtoasinglepoweramplifier. most common sources of sound system failure. Well
When speakers are connected in parallel, their made and carefully maintained cables are essential to
combined impedance decreases. For speakers wired thereliabilityoftheentiresoundsystem. Iflongspeaker
in series the opposite is true, their combined cablesarerequired,itisimportanttoensurethecable‘s
impedance increases. Thus, when speakers are wired gauge is sufficient to transfer all of the available
inseries,higherimpedancespeakersintheseriesdraw amplifier power to the speakers rather than absorbing
more power from the amplifier than do speakers in the the power itself. As a rule of thumb, larger wires are
series with lower impedances. When speakers are better as they conduct more power to the speakers
wired in parallel, the opposite is true. Higher (larger wire has smaller gauge numbers).
impedance speakers will draw less power from the
amplifier than lower impedance speakers will draw.
Below are two charts listing speaker wire gauges and
recommendations for best results.
At Fender®, we recommend connecting multiple
speakers in parallel for several reasons. First, if one
speakerfails,theotherswillcontinuetooperate. Second,
because in a series connection one speaker affects the
output of the other speakers, unpredictable frequency
response is a concern. Third, most speaker cabinets
are already wired for parallel connections making parallel
connections the most common wiring method.
SPEAKER WIRE GAUGE
100'-UP
10
12
12
14
14
16
(30.5 m-UP)
50'-100'
(15.25-30.5 m)
Below are two charts demonstrating how to calculate
both parallel and series impedance.
*25'-50'
14 *16 18
(7.60-15.25 m)
PARALLEL IMPEDANCE
10'-25'
16 18
18 18
18
1
Z
(3.05-7.60 m)
=
p
1
Z
1
Z
1
Z
+
...
1
2
n
0'-10'
18
16Ω* 5.3*
8Ω
8
(0.00-3.05 m)
4
5.3
+
-
+
-
4Ω
*8Ω 16Ω
A
B
8Ω* 16Ω
SPEAKER IMPEDANCE [z]
Cabinet A
+
-
*Example - If the speaker wire length
required is between 25-50 feet (7.60-
15.25 meters) and the speaker
impedance is 8Ω, the minimum
recommended speaker wire gauge is 16.
Impedance
*Example- Cabinet A is 8 ohms. Cabinet B is
16 ohms . The total impedance when connected
in parallel is:
1
Z
=
= 5.3 ohms.
p
1
8
1
16
+
Cross-
Resistance in Ω per foot
Section
AWG
[mm2]
0.83
(30.5 cm) @ 77º F (25º C)
SERIES IMPEDANCE
18
.00651
Z
=
Z
Z
Z
...
+
18 20* 24 32
8Ω 10 12 16 24
16Ω*
s
1
2
n
.00409
.00258
.00162
.00102
.00064
16
14
1.32
2.10
3.32
5.27
8.38
+
-
A
4Ω
2Ω
6
4
8
6
12 20
10 18
+
-
12
10
8
B
2Ω 4Ω* 8Ω 16Ω
+
-
Cabinet A
Impedance
*Example- Cabinet A is 4 ohms. Cabinet B is
16 ohms. The total impedance when
connected in series is 4 + 16 = 20 ohms.
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1272X /1275X SPEAKER CONNECTIONS
SETUP SUGGESTIONS
The 1/4" jacks are wired in parallel
allowing any one of the jacks to be used
as an input and the other as an output.
This allows "daisy chaining" of multiple
loudspeakers, eliminating the need for
several long, cumbersome runs of
speaker cable. The connections are as follows:
Theplacement ofanyspeakercanaffect
its sound. Thus, there are several
considerations to review when placing
your 1272X /1275X monitor.
CAUTION! When operating with large amplifiers
(greater than 150 watts at 4 ohms) always set the
level control between the 3 o’clock and 5 o’clock
positions. Failure to do so may lead to overheating
and damage the level control.
Polarity
Phone Jack
Positive (+)
Negative (-)
Tip
Sleeve
Connect the amplifier to the loudspeaker with a 1) When using stage monitor systems, the reduction
minimum 16 gauge wire when a length of no more than of feedback is probably the most important criteria.
100 feet is used. When multiple speakers are “daisy Thebest waytoreducefeedbackistouseaCARDIOID
chained” together or where longer cable runs are pattern microphone with it’s rear aimed at the
encountered, use a larger gauge wire. Although no loudspeaker. Remember: Do not cover the side or
harm or hazard will result, using too small a gauge of top slots of the microphone with your hands as this
wire may cause the sound quality and level to degrade. could cause feedback.
2) Select a 30 or 60 degree angle based upon the
working distance that you will need. A 30 degree angle
is preferable for performers who require a greater
CARPET COVERING CARE
1272X /1275X cabinets are covered in working distance from the monitor so that movement
a tough, black indoor/outdoor synthetic about the stage is on axis with the monitor. A 60
carpet for long life and lasting good degree angle is preferable for performers who have a
looks. To clean the carpet covering, shorterworkingdistanceand whodonot movearound
simply vacuum away any smudges or the stage.
dirt. For stubborn stains, use a light
soapy solution or carpet shampoo with a brush. Avoid 3) When larger movements are expected, 1272X
spilling liquids on the input panel, grille and speakers. /1275X monitors may be used as side fill monitors so
that wide horizontal coverage can be provided. If used
in the side fill position, it may be advantageous to
elevate the speaker from the floor to keep it aimed at
the performer’s ear level.
The side fill position at about 10 to 15 feet from the
performer is particularly useful for drummers and
keyboard players. This allows program monitoring
while keeping the monitor clear of your equipment. In
the side fill position, the drummer’s / keyboardist’s
vocal microphone can be positioned to the side
allowing the rear of the microphone to face the front
of the monitor minimizing feedback.
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SPECIFICATIONS
TYPE
PR 395
PR 396
MODEL
1272X
1275X
PART NUMBER
CABINET
071-1272-200
071-1275-200
3/4" (1.9 cm)
Particle Board
3/4" (1.9 cm)
Particle Board
CONNECTIONS
DRIVERS
(2) 1/4" Phone Jacks
(2) 1/4" Phone Jacks
Low:
High:
12" (30.5 cm) woofer
2" (5.1 cm) voice coil
Dual Piezoelectric
15" (38 cm) woofer
2" (5.1 cm) voice coil
Dual Piezoelectric
FREQUENCY
RESPONSE
On Axis,
Half Space
+/- 6 dB
60 Hz to 20kHz
50 Hz to 20kHz
ON AXIS
SPL @
SENSITIVITY
1W/1m:
95 dB
95 dB
COVERAGE
PATTERN
Vertical
70º @ 5 kHz
35º @ 5 kHz
70º @ 5 kHz
35º @ 5 kHz
Horizontal
POWER RATING
200W program
200W program
100W EIA RS 426A
100W EIA RS 426A
NOMINAL IMPEDANCE
DIMENSIONS
16Ω
16Ω
Height
Width
Depth
17.3" (43.9 cm)
22.2" (56.4 cm)
13.8" (35.1 cm)
19.2" (48.8 cm)
25.2" (64.0 cm)
15.8
(40.1 cm)
WEIGHT
37 lbs. (16.8 kg)
47 lbs. (21.4 kg)
A PRODUCT OF:
FENDER MUSICAL INSTRUMENTS CORP.
CORONA, CA 91720 USA
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