Leslie 971 User manual

Innovative Sound Systems
Owners Manual
Model 971
SPEAKERS

CAUTION
RISK OF ELECTRIC
SHOCK, DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This symbol indicates that dangerous
voltage constituting a risk of electric
shock is present within this unit.
This symbol indicates there are important
operating and maintenance instructions
in the literature accompanying this unit.
Protect the power cord from being walked on or pinched,
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
Only use attachments/accessories specified by the manufac-
turer.
Use only with the cart, stand, tripod,
bracket, or table specified by the
manufacturer, or sold with the
apparatus. When cart is used,
use caution when moving the
cart/apparatus combination to
avoid injury from tip-over.
Unplug this apparatus during lightning storms or when
unused for long periods of time.
Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.
Apparatus shall not be exposed to dripping or splashing and
no objects filled with liquids, such as vases, shall be placed
on the apparatus.
WARNING: To reduce the risk of fire or electrical shock,
do not expose this apparatus to rain or moisture.
PORTABLE CART WARNING
S3125A
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings.
Install in accordance with the manufacturer’s
instructions.
Do not install near any heat sources such as
radiators, heat registers, stoves or other
apparatus (including amplifiers) that produce
heat.
Do not defeat the safety purpose of the
polarized or grounding type plug. A polarized
plug has two blades with one wider than the
other. A grounding type plug has two blades
and a third grounding prong. The wider blade
or third prong is provided for your safety. If
the provided plug does not fit into your
outlet, consult an electrician for replacement
of the obsolete outlet.
IMPORTANT SAFETY INSTRUCTIONS
OWNERS MANUAL Model 971
1

We greatly appreciate your purchase of a new Leslie speaker system. If this is
your first purchase of a Leslie product, we would like to welcome you into the
Leslie family. If you are a repeat customer, thank you for your continued
confidence in our Leslie products.
Your new Leslie speaker system was engineered and manufactured to the
most stringent-quality standards, reproducing the full-spectrum sound of musi-
cal instruments and housed in acoustically-engineered, fine furniture-like
cabinet. This will assure that your new Leslie will sound and look great for
many years to come. Your Leslie speaker culminates many years of research
and dedication to the art of sound reproduction and is carefully designed and
tested to provide long dependable service.
Many features have been included in this speaker to insure the finest sound from
your organ or keyboard product. Please take a moment to carefully read this
manual and familiarize yourself with many of the fine features found in your
new Leslie speaker system. Take pride in being the owner of the most innova-
tive sound system in the industry today.
Thank You!
www.hammondorganco.com 2

The Leslie 971 speaker system is designed for the musician who demands the full-spectrum sound. This
single-channel Leslie contains two rotors to produce the world-renowned “Sound-In-Motion” effect. The upper
frequencies are reproduced by the world-famous Ferro Fluid high-compression driver and a custom-molded
rotary horn. The lower frequencies radiate from the massive 15” woofer and the high-density custom-molded
foam drum. The rotors can be operated in three different modes: Slow (Chorale), Fast (Tremolo), or Off. This
Leslie is powered by a new 300-Watt RMS solid-state amplifier which produces outstanding sound fidelity at a
volume that can be heard clearly at rock concerts or church services. The rugged electronics provide long life,
reliability and power for professional and institutional applications.
Product Overview
Your new Leslie 971 has been provided with an 11-pin
Leslie connector and a ¼” Line Input jack. This gives you
the flexibility to connect your Leslie to most new Hammond
organ and keyboard products on the market today. A ¼” foot
switch jack has also been provided so that you can control
the speeds of the Leslie. Our model FS-10TL foot switch has
been especially designed to interface with your new Leslie.
It contains two foot switches that together will provide three
different modes of operation: Slow, Fast, and Off. Your new
Leslie also contains a Line Output jack that can be used to
drive most powered subwoofers. Master volume and horn
and bass level controls are provided so that you can adjust
the sound to match your room acoustics.
Diagram of Model 971
2-Speed Horn Rotor
OWNERS MANUAL Model 971
3
Treble
80W 15” Speaker
2-Speed
Foam Rotor
Crossover
Network
Signal Input
Bass
220W
Power Switch Line In Line Out Foot Switch
11-pin Leslie
Connector
Line Cord
Leslie 971 Rear Panel
BASS
LEVEL
TREBLE
LEVEL
MASTER
LEVEL
FOOT
SWITCH
LINE
OUT
LINE
IN
POWER
OFF ON
Master Level
Treble Level
Bass Level

Leslie Setup Procedure
1. Place your Leslie speaker in a location that produces the best
sound reproduction.
2. If you wish to connect your Leslie by means of the Leslie cable
provided, carefully plug the male end of the 11-pin Leslie cable
assembly into the female socket located on your organ or
keyboard. You also have the option of connecting your organ
or keyboard to your Leslie 971 by means of a cable with ¼”
plug on both ends (not provided). Plug one end of the cable
assembly into the Line Out jack on your organ or keyboard,
and the other end to the Line In jack on the Leslie. Then
proceed to step 4.
3. Repeat the above procedure to connect the other end of the
Leslie cable to the Leslie speaker.
4. Plug the AC power cord from the Leslie into a 120V AC outlet.
5. Turn the Master volume control on the Leslie (see page 3) to
the fully counterclockwise position. Set the bass and treble
controls to the mid-position.
6. If you are connecting a Hammond organ to your Leslie, pull
all the upper and lower drawbars including the pedal drawbar
fully out (#9 positions). Set the expression pedal to the loudest
position (fully depressed). For non-Hammond products, set the
volume control to the loudest position and set the voice
registration to a setting that provides maximum sound (i.e.
Full organ).
7. Turn on the power switch on your organ or keyboard product
and on your Leslie if you are using the ¼” Line Input jack.
For organs, play a three-note chord on the upper and lower
manuals and depress the low “C” pedal. For keyboards, place
the unit in the split keyboard mode and play a three-note chord
on the upper manual and the low ”C” pedal note. Have someone
slowly turn the volume control clockwise on the Leslie until
the sound begins to distort, then slowly decrease the volume
(turn the control counterclockwise) unit the sound is undistorted.
Your volume control is now properly set.
Caution: Do not play your Leslie at a volume setting that
produces a distorted sound. Severe damage may occur to
your new Leslie if played in this condition for an extended
period of time.
In most cases, your local Leslie dealer will connect your new Leslie speaker to your organ or keyboard
product. In the case that no setup was provided or if you wish at a later time to move your Leslie speaker to
another location, please carefully read and follow the setup procedure below:
11-pin connector cable
male female
www.hammondorganco.com 4
Female end of
Leslie cable
Leslie male plug
Organ or Keyboard
female socket
Male end of
Leslie cable

One of the first considerations will be where to place the speaker for the best all-around effect. Most musi-
cians prefer having the Leslie speaker near the organ or keyboard product so that the sound is balanced to
their desired level. Closer or more distant locations are easily accommodated by adjusting the volume level
of the speaker (see page 4 Leslie Setup Procedure).
Care of your new Leslie Speaker
Your new Leslie speaker has been carefully engineered for durability and maximum service. Except for
occasional replacement of maintenance items such as belt and vacuum tubes, your new Leslie speaker will
require little or no attention.
CAUTION
As with any electrical or electronic equipment, care should be exercised to prevent fire and shock hazard.
The following information is provided to give guidance in the safe use and care of your Leslie Speaker.
ENVIRONMENT
This speaker is primarily designed to be used in an interior environment. To prevent an electrical shock
hazard, do not expose your Leslie to wet floors, liquid spills and splashes, or rain.
ENCLOSURE
The removal of any part of the enclosure may result in exposure to electrical shock. Servicing should not be
attempted by the user; refer all servicing to factory-trained technicians.
POWER
Operate this speaker only at the AC voltage and frequency indicated on the nameplate located on the back of
the Leslie.
CLEANING THE CABINET
Use a soft cloth or chamois, slightly dampened with water. A little mild detergent may be added to the water
if necessary. For the Leslie models finished in red walnut, rub lightly with the grain of the wood. Excessive
rubbing in one spot or at the edge of the cabinet may damage the finish. Use a good grade of furniture wax
or polish.
Where to place your new Leslie Speaker System
OWNERS MANUAL Model 971
5
Whatever the distance from the keyboard, the
Leslie speaker should be given enough space so
the sound can radiate fully through the room.
Restricting the sound dispersal by placing the
cabinet against a wall or between large pieces
of furniture reduces the effectiveness of the
speaker. Sound reflection is desirable. Yet in
most homes, much sound is absorbed by
furniture, rugs and drapes, rather than being
reflected. The Leslie speaker overcomes this
absorption problem by providing a moving-
sound source. Placing the speaker diagonally in
a corner is a good practice. Sound will be reflected off the two adjacent walls, enhancing the beauty, power
and dispersion of the music.

MOVING OR RELOCATING YOUR LESLIE SPEAKER
So as not to damage your Leslie cables, carefully unplug both ends of the cable before moving your Leslie
speaker. To prevent damage to the cabinet, it is advisable that more than one person move the speaker.
PACKING AND SHIPPING
Packing and shipping should be done by your local Leslie dealer or by a qualified mover. The speaker should
not be moved or carried on its side or upside down, as this will result in damage to the moving parts inside the
cabinet. The cabinet must be moved, carried or shipped in an upright position. The exterior should be
protected by boxing the cabinet or covering it with padding.
SPECIFICATIONS:
Leslie model 971
- Single-Channel Input
- Two speed horn and drum rotor
- Amplifier: 300-Watt RMS Total: 220-Watt RMS bass amplifier
- 80-Watt RMS treble amplifier
- Speakers: Massive 15” woofer, world-famous Ferro Fluid horn driver
- Inputs: 11-pin Leslie connector, 1/4” Line Input jack, and foot switch jack
- Outputs: 1/4” Line Output jack suitable to drive a powered sub-woofer
- Dimensions: 41 5/8” H, 29 1/4” W, 20 5/8” D
- Weight: 149 lbs
OPTIONAL ACCESSORIES
Shown below are only a few of the available optional accessories for your new Leslie Speaker. Visit our
website or your local Leslie dealer to view all the available products to enhance your Leslie Speaker.
Model FS-10TL Foot Switch
Enable the selection of
speeds on the 971 Leslie.
Supplied with a 16’ cord
with a 1/4” plug.
Tremolo / Chorale Switch
This half-moon shaped
switch assembly is used to
control the speeds of the
Leslie speaker. Consult
your dealer for the switch
that your organ or Leslie requires.
11-pin Leslie cable assemblies
These cable assemblies
are available in 30’, 50’
and 100’ lengths.
Leslie Power Relay
This adapter will
allow you to
connect additional
Leslie speakers to
your organ.
www.hammondorganco.com 6

SERVICE
Hammond maintains a policy of continuously improving and upgrading its instru-
ments and therefore reserves the right to change specifications without notice.
Although every attempt has been made to insure the accuracy of the descriptive
contents of this manual, total accuracy cannot be guaranteed.
Should the owner require further assistance, inquiries should first be made to your
Authorized Hammond Dealer.
If you still need further assistance, contact Hammond at the following address.
Hammond Suzuki USA, Inc
733 Annoreno Drive
Addison, IL 60101
Phone: 1-888-ORGAN B3
Fax: [phone]
Visit our website
www.hammondorganco.com
SPEAKERS
2006 Hammond Suzuki USA G11005 Printed in USA