Toa 300-SD User manual

PROFESSIONAL SOUND SYSTEM
instruction Manual
Speaker System Model 380SD, 300SD
FEATURES
1. Extended frequency response
2. High power capacity of 120 watts continuous pink noise
(Test duration: 24 hours)
3. Constant directivity horn gives coverage of 90 degrees
horizontal by 40 degrees vertical
4. Slotted design that functions as an acoustic low pass fil-
ter
5. Easily stackable on similar speakers and mountable on
a speaker stand
6. Side-mounted handles for ease in carrying
7. Input jacks for bi-amplification
GENERAL DESCRIPTION
The 380SD and 300SD are compact, roadworthy 3-way
speaker systems with Thiele-Small aligned bass reflex encl-
osures which house one 15" (380SD) loudspeaker, one 12"
(300SD) loudspeaker and a constant directivity horn cou-
pled with high efficient compression driver and a high per-
formance tweeter. They are designed to be used as full
range systems or with the use of the additional in/out 1/4"
phone jacks can be bi-amplified. They offer extended fre-
quency response, exceptionally high power capacity
(120W continuous pink noise) and high efficiency. They are
ideal for any sound reinforcement application that requires
a blend of outstanding performance and maximum porta-
bility. TOA's unique front-slotted design functions as an
acoustic low pass filter, obtaining a smooth crossover be-
tween low and high frequency and ensuring flat response.
They are equipped with the side-mounted handles for ease
in carrying and set up. The enclosures have grills to pro-
tect loudspeaker and interlocking corners for vertical stack-
ing of similar models and an integral stand mounting adap-
ter.

Specifications are subject to change without notice.
Input Panel
FULL RANGE INPUT
Connects to the output of power amplifier. This
is the input jack when used as a full range
speaker.
BI-AMP INPUT (HIGH)
Connects to the amplifier for high frequency
when driving the speaker system with bi-
amplification.
BI-AMP INPUT (LOW)
Connects to the amplifier for low frequency
when driving the speaker system with bi-
amplification.
MID-FREQUENCY ATTENUATOR
Adjusts the sound level of the mid-frequency.
Make the level setting according to the environ-
mental conditions, although almost flat frequen-
cy response is obtainable so far as the atte-
nuator remains within the "NORMAL" range.
FULL RANGE OUTPUT
Make bridge connection of this output to the full
range input of another speaker system when
driving two speaker systems with one power
amplifier.
BI-AMP OUTPUT (HIGH)
For bridge connection in high frequency to
another speaker.
BI-AMP OUTPUT (LOW)
For bridge connection in low frequency to
another speaker.
CAUTION:
DO NOT USE THE BI-AMP JACKS UNLESS
THE SPEAKER SYSTEM IS DRIVEN UNDER
MULTI-AMPLIFIERED SYSTEM. CONNECTING
THE FULL RANGE OUTPUT TO THE BI-AMP
INPUT JACK MAY DAMAGE THE SPEAKER.
Frequency Response (1W/1m: Swept 1/3 Octave Pink Noise)
380SD 300SD
Attenuator at NORMAL position
Attenuator at MAX. position
Mounting on the speaker stand
The 380SD and 300SD speaker systems can be easily
mounted on their exclusive speaker stand Model ST-20
(optional).
(See illustration)
speaker system
stand adapter
ST-20
Toa Electronics, Inc.
601 Gateway Boulevard
South San Francisco, California 94080
Telephone: [phone]
FAX [phone] Telex No. 331332 SSF TOA ELECT
MODEL NUMBER
Enclosure
Speaker
Handling Power Capacity
Continuous Pink Noise
Continuous Program
Impedance
Sensitivity
Frequency Response
Crossover Frequencies
Middle Frequency Level Control
Finish (Enclosure)
Dimensions
Weight
380SD
300SD
Vented (bass reflex) type
15" (38cm) woofer constant directivity
horn and compression driver 3" tweeter
12" (30cm) woofer constant directivity
horn and compression driver 3" tweeter
120 watts of band-limited pink noise [50Hz - 20kHz]
360 watts
8 ohms
100dB(1W/1m)
50Hz - 20kHz
98 dB (1W/1m)
60Hz - 20kHz
1kHz, 10kHz
0— 10dB (with an "OFF" position)
Grey leatherette
680 (H) x 492 (W) x 392 (D) mm
26.8 (H) x 19.4 (W) x 15.4 (D) inches
27kg (59.5 Ibs)
588 (H) x 460 (W) x 312 (D) mm
23.1 (H) x 18.1 (W) x 12.3 (D) inches
21kg (46.3 Ibs)
Specifications