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1225HP
1225HP
PROFESSIONAL
PROFESSIONAL
LOUDSPEAKER
LOUDSPEAKER
ENCLOSURE
ENCLOSURE
Refer
Refer
Manual for 1225HP
Manual for 1225HP
P/N 053647 REV A
ence / Owner’’s s
ence / Owner
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Fender Musical Instruments
7975 North Hayden Road, Scottsdale, Arizona 85258 U.S.A.
A Message from the Chairman
At Fender, we know the importance of sound reinforcement. From the simple
box-top powered mixer to today’s touring concert systems, the need to
communicate to make the connection between the performer and the
audience is foremost in our mind.
Perhaps no other piece of gear can make or break your message or your band’s
sound than your sound reinforcement gear. Your sound system is far more than
just a combination of dials, wires and speakers. It is an integral part of the audio
chain and should be treated with special care and attention to detail.
Fender knows what building quality musical instruments and sound
reinforcement equipment is all about. In fact, many of the world’s best
sounding electric musical instruments and sound reinforcement equipment
proudly wear the Fender name.
Whether you need a small powered mixer for your Saturday afternoon “jam” or
a professional full-size concert system, Fender has the sound reinforcement
gear to meet your needs. Likewise, your decision to purchase quality Fender
Professional Audio Equipment is one you will appreciate with each
performance for years to come.
Wishing you years of enjoyment and a heartfelt thank you,
Bill Schultz
Bill Schultz
Chairman of the Board
Fender Musical Instruments Corporation
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INTRODUCTION
1225HP
1225HP
PROFESSIONAL LOUDSPEAKER
PROFESSIONAL LOUDSPEAKER
SYSTEM
SYSTEM
3/4” Birch Plywood Construction
with Sturdy DADO Joints
High Current 1/4” Phone Jacks and
Neutrik Speakon™Connectors
B&C 1” (2.55 cm) Exit Compression
Driver
Active / Passive Crossover Operation
Metal Corners and Rubber Feet
Tough Indoor / Outdoor Synthetic
Carpet Covering
Thank you for purchasing a 1225HP Loudspeaker
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.
The 1225HP Loudspeaker System is a professional,
full-range, two-way, loudspeaker designed for the
most demanding permanent or portable sound
reinforcement requirements. Moreover, these
speakers are ideal for use as a two-way system or as
the mid / high pack in a three-way set-up incorporating
a Fender subwoofer loudspeaker system.
With a wide response, low distortion and controlled
directivity, 1225HP Loudspeaker 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 1225HP Loudspeaker cabinets are
covered in tough black indoor/outdoor synthetic
carpet covering. The1225HP Loudspeaker cabinet
also features metal corners and rubber feet for a longer
life and lasting looks.
Only the finest components are used to provide
maximum efficiency and response. In order to more
fully understand the operational characteristics of your
1225HP Loudspeaker enclosure, 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,
including televisions and computer video monitors.
To reduce or eliminate interference, increase the
distance between this product and other nearby
electronic devices.
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SPEAKER WIRING AND CONNECTIONS
Parallel or series are the two basic ways which
multiple speakers can be connected to a single power
amplifier. When speakers are connected in parallel,
their combined impedance decreases. For speakers
wired in series the opposite is true, their combined
impedance increases. Thus, when speakers are wired
in series, higher impedance speakers in the series draw
more power from the amplifier than do speakers in the
series with lower impedances. When speakers are
wired in parallel, the opposite is true. Higher
impedance speakers will draw less power from the
amplifier than lower impedance speakers will draw.
At Fender®, we recommend connecting multiple
speakers in parallel for several reasons. First, if one
speaker fails, the others will continue to operate. 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.
Below are two charts demonstrating how to calculate
both parallel and series impedance.
PARALLEL IMPEDANCE
Z
5.3* 8
16Ω*
4 5.3
8Ω
Cabinet B
Impedance
SERIES IMPEDANCE
8Ω*16Ω
Cabinet A
Impedance
*Example- Cabinet A is 8 ohms. Cabinet B is
16 ohms . The total impedance when connected
in parallel is:
Z
=
p
1
181
+
+ -
16
p
= 5.3 ohms.
=
1
+
Z
+
AB
-
1
1
1
...
Z
Z
2n1
+
-
Keep in mind, power and audio signal cables are the
most common sources of sound system failure. Well
made and carefully maintained cables are essential to
the reliability of the entire sound system. If long speaker
cables are required, it is important to ensure the cable‘s
gauge is sufficient to transfer all of the available
amplifier power to the speakers rather than absorbing
the power itself. As a rule of thumb, larger wires are
better since they supply more power to the speakers
(larger wire has smaller gauge numbers).
Below are two charts listing speaker wire gauges and
recommendations for best results.
SPEAKER WIRE GAUGE
100'-UP
(30.5 m-UP)
50'-100'
(15.25-30.5 m)
*25'-50'
(7.60-15.25 m)
10'-25'
(3.05-7.60 m)
0'-10'
SPEAKER WIRE LENGTH
(0.00-3.05 m)
10
12
14
16
18
4Ω
12
14
16
14
*16 18
18
18
18
18
*8Ω
16Ω
SPEAKER IMPEDANCE [z]
*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.
AWG
Cross-
Section
[mm ]
Resistance in Ω per foot
2
(30.5 cm) @ 77º F (25º C)
Z
18 20* 24 32
16Ω*
8Ω
10 12 16 24
4Ω
Cabinet B
6 8 12 20
Impedance
2Ω
4 6 10 18
2Ω 4Ω*8Ω16Ω
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.
s
+ -
=
ZZZ
...
+
2n1
+
A
-
+
B
-
18
16
14
12
10
8
0.83
1.32
2.10
3.32
5.27
8.38
.00651
.00409
.00258
.00162
.00102
.00064
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HORN INSER TS
To change the dispersion pattern from 90º to 60º, first
remove the Phillips Head screws from the grille and
lift the grille away from the cleat. If your insert has a
plug on it, you may wish to remove it for easier
installation. To do so, carefully cut it off using a razor
blade. To attach the horn inserts, first place the wider
end of the insert under the front lip of the horn. Next,
guide the smaller end of the insert under the ribs near
the throat of the horn. The insert is secured in place
by the 3 ridges.
Installing the Horn inserts.
To reinstall the grille, simply place the grille back upon
the cabinet’s cleat and secure it using the previously
removed screws. With the inserts installed, the
horizontal coverage angle is now reduced to 60º.
When the switch on the back of the speaker is in the biamp mode, the internal crossover and high frequency
attenuator are disabled. Thus, an external crossover
must be used with the speaker and two channels of
power amplification will be required: one for the low
frequencies and another for the high frequencies. In biamp mode, the connections are as follows:
Phone Jacks
Frequency
Lows
Lows
Highs
Highs
Polarity
Positive (+)
Negative (-)
Positive (+)
Negative (-)
Left
N/A
N/A
Tip
Sleeve
Right
Tip
Sleeve
N/A
N/A
Speakon
1+
1-
2+
2-
IMPORTANT: If the crossover switch is set to
external, DO NOT plug a full range signal into the
High Frequency input. Doing so will destroy the
compression driver.
SETUP SUGGESTIONS
The placement of any speaker can dramatically affect
its sound. Thus, there are several considerations to
review when placing loudspeakers.
The high frequency driver for all enclosures is a
compression driver using high technology polymer
materials to handle large amounts of power. This
compression driver is mated to an innovative
Controlled Dispersion™horn that allows a single horn
to be used for a number of applications. The quick
placement or removal of the horn inserts can change
the horizontal coverage pattern from 60º to 90º. When
both inserts are installed, a 60º coverage pattern is
achieved. This is useful in multi-cabinet tight pack
arrays where a narrower consistent coverage pattern
is required. With the horn inserts removed, a 90º
coverage pattern is attained offering a wider horizontal
dispersion pattern.
1225HP SPEAKER CONNECTIONS
In normal operation (using the passive internal
crossover), the 1/4" jacks and the Speakon
Connectors are wired in parallel allowing any one of
the connectors to be used as an input and any other
as an output. This allows "daisy chaining" of multiple
loudspeakers, eliminating the need for several long,
cumbersome runs of speaker cable. During normal
mode, the connections are as follows:
Polarity Phone Jack Speakon
Positive (+) Tip 1+ and/or 2+
Negative (-) Sleeve 1- and/or 2-
™
First, the range of the horizontal coverage should be
determined. The speaker may be used as a single unit,
as part of a pair, or as part of a group of widely spaced
enclosures, in any case, maximum horizontal coverage
will be desired. Examples of these types of setups
are shown.
1225HP
Cabinet
Cabinet
Stage
Audience
30º
1225HP
Cabinet
coverage
1225HP
Cabinet
™
Two speakers arranged as a mono or stereo
pair requiring maximum horizontal coverage
1225HP
Two speakers in a "loose pack" array
requiring maximum horizontal
NOTE: When setting up your 1225HP enclosures, be
sure to place the cabinets in such a way as to minimize
overlapping radiating patterns.
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SETUP SUGGESTIONS, CON’T.
A second consideration is for feedback and bass
performance. If the speaker is placed near a large, flat
wall, the bass output will increase by approximately 3
dB. Placing the speaker near a wall can cause
feedback. If this occurs, the speaker must be moved.
A third consideration is to what degree the speaker
should be "heard and not seen", especially in
permanent installations. Remember, where the
speaker cabinets are placed will affect both their tone
and radiating patterns.
it may be ordered directly from Fender using the form
included with your new speakers.
UNPOWERED MIXER
OUT
IN
MONITOR
OUT
MAIN
BI-AMP OPERATION
For versatility and increased headroom, some users
may choose to use an active electronic crossover /
processor, such as the Fender PCN-2 or PCN-4, with
the system. The electronic crossover takes the place
of the internal crossover of the speaker system. The
"Normal / Bi-Amp" switch on the back of the cabinet
must be set to the "Bi-Amp" position. Always check
to ensure the internal/external crossover switch
which selects passive or biamp operation is in the
correct position prior to use. Failure to do so may
damage the speakers. A typical set-up of a bi-amp
configuration is shown at right.
For those situations requiring a subwoofer, HP
loudspeakers can still be used if a three-way electronic
crossover is used. An example of this configuration is
shown on the next page (7).
It is strongly recommended that a fourth-order
"Linkwitz-Riley" or a digital FIR fourth-order active
crossover be used. The crossover frequency for the
1225 HP should be set at approximately 2200 Hz.
Since the output sensitivity of the compression driver
is higher than that of the woofer, the high frequency
output of the system must be decreased at either the
crossover (if such a control is provided) or at the power
amplifier(s) that are used for the high frequencies.
CAUTION: Be sure to connect the high frequencies
and low frequencies to their correct inputs
indicated on the back of the speaker cabinets.
FOR MORE STUDY...
...order your copy of “Making the Connection - The
Fender Pro Audio Primer”. Making the Connection is
available at your nearest authorized Fender dealer or
PCN-2 ELECTRONIC CROSSOVER
SPL-9000
POWER AMP
Hi
1225HP
Cabinet
Low
Speakers operated in a bi-amp configuration
SWITCHES
SET TO
EXTERNAL
CROSSOVER
A Out
HIGH
OUT
A In
LOW
OUT
B In
B Out
Hi
1225HP
Cabinet
Low
CARPET COVERING CARE
1225HP cabinets are covered in a
tough, black indoor/outdoor synthetic
carpet for long life and lasting good
looks. To clean the carpet covering, use
a sponge and a light soapy water
solution to wipe away any smudges or
dirt. For stubborn stains, a slightly more concentrated
soapy solution or carpet shampoo with a brush may
be used. Avoid spilling liquids on the input panel, grille
and speakers.
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USING AN 3-WAY ELECTRONIC CROSSOVER WITH A 1225HP ENCLOSURE
UNPOWERED MIXER
MONITOR
MAIN
OUT
OUT
INPUT
PCN-4 ELECTRONIC CROSSOVER
SPL-9000 POWER AMP
Hi Hi
1225HP
Cabinet
Low
SWITCHES SET
TO EXTERNAL
CROSSOVER
A In
HIGH
OUT
A In
A Out B Out
1225HP
Cabinet
Low
MID
OUT
B In
LOW
OUT
SPL-9000 POWER AMP
Bridge Mono Mode
Speakers operated in a bi-amp configuration with
Bridge Out
215s
a subwoofer (tri-amping)
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SPECIFICATIONS
MODEL 1225 HP
PART NUMBER 071-1225-300
CABINET 3/4" (1.9 cm)
Birch Plywood
CONNECTIONS (2) 1/4" Phone Jacks
(2) Speakon™Jacks
DRIVER Low: 15" (38 cm) cast frame woofer
3" (7.6 cm) voice coil
80 oz. (2.3 kg) magnet
8Ω
High: 1" (2.5 cm) Exit Throat
Polymer Diaphragm
2" (5 cm) voice coil
16Ω
FREQUENCY On Axis
RESPONSE +/- 3 dB: 60 Hz to 15kHz
ON AXIS SPL @
SENSITIVITY 1W/1m: 98 dB
COVERAGE Vertical 90º @ 5 kHz
PATTERN Horizonal 40º @ 5 kHz
POWER RATING 400W program
200W EIA
NOMINAL IMPEDANCE 8Ω
CROSSOVER FREQUENCY 2200 Hz
DIMENSIONS Height 28.6" (72.6 cm)
Width 19.8" (50.3 cm)
Depth 19.2" (48.8 cm)
WEIGHT 84 lbs. (38 kg)
A PRODUCT OF:
FENDER MUSICAL INSTRUMENTS CORP.
CORONA, CA 91720 USA
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