Toa SF-60 User manual

TOA SPEAKER SYSTEM
CEILING MOUNT 3-WAY SPEAKER
SF-60
DESCRIPTION
The TOA SF-60 3-way speaker is designed for permanent
installation in high-level professional applications. Its
trapezoidal cabinet and component design allow arrays to
simulate a single source.
The SF-60 is driven by a 2-way multi-amplifier (bi-amplified)
system, where one amp drives the low frequency transducer
and the other drives the mid/high combination. Correction
for time-offset, phase and frequency response is provided
by internal circuitry.
The SF-60 accurately reproduces transient responses in
the low frequencies, using a high-quality 12” woofer with a
large concentrated-geometry magnet. The SF-60 uses a
powerful HFD-651 compression driver for the mid/high
frequencies. Its LE Series constant directivity horn ensures
optimum performance and uniform sound dispersion. Very
high frequencies are reproduced by an HT-371 super
tweeter that handles only frequencies over 10kHz, for
precise sonic tracking. TOA’s SW-38UL or SW-46UL2 ultra-
linear superwoofers can be used with the SF-60 for high-
level extremely low frequency response.
Sixteen T-nut holes, screw-type input terminals and
carrying handles are provided.
FEATURES
1. 3-way vented system driven by 2-way multi-amplifier
(bi-amplifier).
2. High power capacity of 120 watts continuous pink
noise for low frequency and 80 watts for mid/high
frequency.
3. 12” (30cm) woofer using a larger magnet.
4. HFD-651 type high power driver with LE Series
Constant directivity (CD) horn (90° horizontal by 40°
vertical).
5. Exponential horn tweeter.
6. Built-in passive circuit to correct time, phase and
frequency response for multi-amplifier driving.
7. Passive crossover between the driver and the tweeter
set to highest 10kHz.
8. High frequency level control for the tweeter.
9. Fixing nuts for ceiling suspension provided on top,
bottom and both sides of the enclosure.
10. The fixed baffle, the horn and the tweeter can be
turned.
11. Recessed type carrying handles provided on both
sides of the enclosure.
12. Removable punched metal front grill.

SPECIFICATIONS
Enclosure
Bass-reflex type Box Tuning Frequency
65Hz
High Frequency Level
Control
0 ~ - 10dB (with an OFF position)
Power Handling Capacity
Low Frequency
Continuouspinknoise:120wattsRMS
(Band-limited 50Hz ~ 1kHz)
Continuousprogram: 360watts
Mid/High Frequency
Continuouspinknoise:80wattsRMS
(Band-limited 1kHz ~ 20kHz)
Continuousprogram: 240watts
Input Connector 4P screw terminal
Speaker
Low Frequency
Mid Frequency
High Frequency
Nominal Impedance
Sensitivity
Frequency Response
12 " (30cm) dia. cone speaker
CD horn (90° horizontal by 40° vertical) plus
compressiondriver
Horntype
Lowfrequency:8ohms
Mid/Highfrequency:16 ohms
Low frequency: 98dB (1W/1m)
Mid/Highfrequency:106dB(1W/1m)
60Hz ~ 20kHz
Crossover Frequencies
LowtoMidfrequency(Frequencydividingnetwork):
1kHz,-12dB/octave(Butterworth)
MidtoHigh frequency (built-in passive network):10kHz
APPEARANCE AND DIMENSIONAL DIAGRAM CONNECTION DIAGRAMS
890"(226mm)
1. SF-60 single system (2-way multi-amplifier driving system)
630”
317"(80.5mm)
INPUT PANEL
view from A
Low frequency
inputterminal Mid/High
frequency
input terminal
l Input terminal of the SF-60 is divided into Low and
Mid/High frequencies as the SF-60 is a 2-way multi-
amplifier driving system.
Be sure to connect polarities (+ , -) of each amplifier
output cord to the speaker terminals correctly.
l Make the level setting according to the environmental
conditions, although almost flat frequency response is
obtainable as long as the High frequency level control is
set to NORMAL.
Weight
86lb (39kg)
Finish Polyester in gray color
Specifications are subject to change without notice.
2. Combination system with the super-woofer
(Sway multi-amplifier driving system)
Mixer/Preamplifier
dividing I
network
I
Power amplifier
SW-46W-UL2 SW-36W-UL
SW-46S-UL2 SW-38S-UL, etc
FREQUENCY DIVIDING NETWORK
Set each mode of the frequency dividing network as per the
following tables. Best frequency response is ensured, as time
and phase are corrected with the built-in passive circuit.
1. SF-60 single system 2. Combination system with the
(2-way multi-amplifier driving
system)
*1 - 5dB stands for a standard value when
connected to the same amplifiers for LOW
and HIGH frequencies Make the level
setting according to the environmental
conditions at installation.
super-woofer (3-way multi-
amplifier driving system)
*2 The crossover between LOW and MID
frequency range stands for a typical one
When Slope characteristics are changed,
best characteristics are obtainable by
changing phase of LOW frequency range to
normal. Decide the final change at the time
of measurement or test listening
INSTALLATION
L type metal brackets with
W3/8" nuts are provided at
four corners inside the
enclosure as shown in the
figure. Nuts are located just
at back side of the fixing
holes of the enclosure.
Utilize these fixing holes
according to the speaker
location. Refer to appearance
diagram on the fixing holes.
L type metal
brackets with
W3/8” nuts.

CHARACTERISTICS DIAGRAMS
Directivity Factor vs Frequency Beamwidth vs Frequency
Frequency Response (1W/1m: 1/3 Octave Pink Noise)
70 I/
II
: \.. ,
/ ‘,-
20 50 loo 200 500 lk 2k 5k 10k 20k Hz
Frequency
Frequency dividing network is set in status of the SF-60
single system.
Polar Response (1W/4m: 1/3 Octave Pink Noise)
(This note is applicable
only to the vertical
directions.)
(This note is applicable
only to the vertical
Woofer
Horn directions.)
(This note is applicable
only to the vertical
directions.)
(This note is applicable
only to the vertical
directions.)
(This note is applicable
only to the vertical
directions.)
(This note is applicable
only to the vertical
directions.)

TOA Corporation
Printed in Japan 833-64-520-70