PROFESSIONAL SOUND SYSTEM
Speaker System
Model 380-SE
Instruction Manual
GENERAL DESCRIPTION
The TOA 380-SE is a 3-way loudspeaker system specifically developed for the reproduction of electronic music. Analog and digital keyboard synthesizers, drum machines, and guitar synths require a speaker system with a wide frequency response, high power capacity, and the ability to handle the extreme dynamic range these instruments produce. The TOA 380-SE was designed to meet these stringent requirements.
The system consists of a bass reflex enclosure housing a heavy duty 15-inch woofer, a high-efficiency compression driver coupled to a constant directivity horn, and an exponential horn tweeter. The constant directivity horn ensures a uniform dispersion pattern of 90 degrees horizontal and 40 degrees vertical, while the tweeter delivers an even response to 20kHz. This combination results in a smoothness and clarity that prevents "ear fatigue" even at a high volume levels. The system is rated at 360 watts continuous program material.
The rear panel provides 1¼" phone jack inputs for full-range, biamp, triamp operation. All inputs have parallel bridging jacks for chaining multiple speakers. The mid- and high-frequency level controls are recessed and located on the side of the cabinet near the front for convenient operation.
The wooden enclosure is sturdily constructed, and equipped with large side-mounted handles for easy transport. Interlocking protective corners allow stacking of multiple speakers, and the polyester finish resists scratches. A removable black jersey grillecloth completes the high tech look of the 380-SE.
FEATURES
- Extended frequency response for accurate reproduction of electronic music
- Power capacity of 360 watts continuous gives wide dynamic range
- Constant directivity horn gives coverage of 90 degrees horizontal by 40 degrees vertical
- Exponential horn tweeter for clarity smoothness, reduced "ear fatigue"
- Level controls recessed and located on side of cabinet for added convenience.
- Additional 1½ phone jacks for biamp, triamp, and chaining
- Rugged enclosure finished in scratch-resistant polyester with handles, interlocking corners
Specifications
- Enclosure: Vented (bass reflex) type
- Speakers: Low Frequency, 15" woofer; Mid Frequency, CD Horn plus compression driver; High Frequency, Horn tweeter
- Power Handling Capacity: Continuous Pink Noise: 120 watts RMS of band-limited pink noise (50 Hz~20 kHz); Continuous Program: 360 watts
- Impedance: 8 ohms
- Sensitivity: 102 dB (1W/1m)
- Frequency Response: 50 Hz~20 kHz
- Crossover Frequencies: 800 Hz, 8 kHz
- High and Mid Frequencies Level Controls: 0~-10 dB (with an "OFF" position)
- Input Terminals: 1½" Phone jacks for a full-range, biamp, triamp and chaining
- Finish (Enclosure): Polyester in grey color
- Dimensions: 758(H)X498(W)X410(D) mm (29.8(H)X19.6(W)X16.1(D) inches)
- Weight: 36 kg (79.2 lbs)
Input Panel
FULL RANGE INPUT: Connects to the output of power amplifier. This is the input jack when used as a full range speaker system.
MULTI-AMP (3-WAY) INPUTS: Connects to corresponding power amplifiers for high, mid and low frequency ranges when driving the speaker system with multi-amp operation.
BI-AMP INPUTS: Connects to corresponding power amplifiers for high/mid and low frequency ranges when driving the speaker system with bi-amp operation.
FULL RANGE OUTPUT: Make bridge connection of this output to the full range input of another system when driving two speaker systems with one power amplifier.
MULTI-AMP (3-WAY) OUTPUTS: For bridge connection of multi-amp operation.
BI-AMP OUTPUTS: For bridge connection of bi-amp operation.
CAUTION: DO NOT USE THE BI-AMP AND MULTI-AMP JACKS UNLESS THE SPEAKER SYSTEM IS DRIVEN UNDER BI- AND MULTI-AMPLIFIERED SYSTEM. CONNECTING THE AMPLIFIER OUTPUT FOR THE FULL RANGE TO THE MULTI- AND BI-AMP INPUT JACKS MAY DAMAGE THE SPEAKER.
Level Controls
Adjusts the sound level of the mid and high frequencies when driving the speaker system as a full range speaker system. Make the level setting according to the environmental conditions, although almost flat frequency response is obtainable so far as the level controls remain within the "NORMAL" ranges.
MID FREQUENCY LEVEL CONTROL
HIGH FREQUENCY LEVEL CONTROL
Mid & high level controls at NORMAL position
Mid & high level controls at MAX position
Frequency Response (1W/1m: Swept 1/3 Octave Pink Noise)
A graph shows frequency response from 20 Hz to 20 kHz. The Y-axis represents dB from 70 to 100. The graph indicates that the mid and high level controls at the NORMAL position result in a flatter frequency response compared to the MAX position, especially at higher frequencies.
