TOA Electronics TA 1400 user manual Operation precautions, Connecting speakers

Page 13

7.2Connecting speakers

Speaker connections are made via the two Neutrik® NL4FC Speakon connectors. The Speakon connector is designed for high power speaker connections. It assures the correct polarity, it locks in place and prevents from shock hazard.

They are wired in the following manner:

The right jack, Channel A, has both channel A and B outputs, so it’s useful for bridging and bi-amp operation (see bridged mono operation on page 7). The left Speakon, Channel B, carries only the channel B output.

Channel A and B into two separate Speakons.

Channel A and B into one

Bridged mono

Speakon (Stereo and Bi-

 

amp)

 

Never connect either output terminal to ground or to some other output or input terminal (see warnings in chapter 1)

For normal two-channel operation, connect each speaker load across the output’s positive and negative terminals. Pay attention to speaker polarity; loudspeakers connected out of polarity degrade sound quality and may be damaged as a consequence.

Keep the speaker cable wires as short as possible and use a good quality stranded speaker cable. Do not use shielded wire, such as microphone or guitar cable. Remember that the speaker cable robs the power of the amplifiers in two ways:

Increases the load impedance and introduces resistive power losses.

WARNING: To prevent from electric shock, do not operate the amplifier with any of the conductor portion of the speaker wire exposed.

8 OPERATION

8.1Operation precautions

•Make sure that the power switch is set to “off” before connecting any input or output or operating the switches on rear panel. See pages 8 about installation.

•Make sure that the AC mains voltage is correct and the same as the one printed on the rear panel of the amplifier. See pages 9, about operating voltage and power consumption.

•Make sure that the switches on the rear panel for operation modes, gain-switch and clip- limiter switch are in the correct position. See page 7 about operation modes and page 13 about clip limiters.

•It is always a good idea to turn down the gain controls during power-up, to prevent speaker damage in case a high signal is present at the input.

 

 

 

Tannoy Limited

12

TA 1400 User Manual

11-06-02

 

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Contents Page Contents Important Safety Instructions Explanation of graphical symbolsApprovals Speaker damage User responsibilitySpeaker output hazard Radio interferenceIntroduction Protect indicatorUnpacking Front PanelRear Panel Gain switch Rear Panel FeaturesDIP-switch SensitivityStereo mode Link switchTandem mode Bridge mono modeBridge mono mode features InstallationMounting CoolingOperating voltage Power consumptionDenmark SwitzerlandCalculation ConnectionsInput connections Balanced inputsTIP HOT Ring Cold Sleeve SHIELD/GROUND Unbalanced inputsConnecting speakers Operation precautionsThey are wired in the following manner OperationPowering up Soft start Protection FeaturesClip Limiter Troubleshooting MaintenanceGeneral Warranty

TA 1400 specifications

The TOA Electronics TA-1400 is a professional-grade amplifier designed for various applications, including public address systems, commercial installations, and professional sound reinforcement. Renowned for its reliability and superior performance, the TA-1400 has become a popular choice among audio engineers and providers of sound solutions.

One of the main features of the TA-1400 is its robust power output, delivering 140 watts into 4 ohms. This high power rating ensures that the amplifier can drive a wide range of speakers, making it suitable for both small venues and larger environments. Its versatility allows users to adjust the output to meet specific needs, whether in a classroom, auditorium, or outdoor event.

The TA-1400 integrates advanced technologies, making it easy to use and efficient. It features a built-in mixer with multiple microphone and line-level inputs. This ensures seamless integration of different audio sources, whether it be microphones for events or music playback from various devices. Additionally, the advanced circuitry employed in the TA-1400 minimizes distortion and enhances audio clarity, allowing for crisp and clear sound reproduction.

Moreover, TOA has incorporated several protective mechanisms in the TA-1400 to ensure longevity and reliability. The amplifier includes overload protection, short-circuit protection, and automatic thermal shutdown. These features safeguard the amplifier against damage from excessive heat or electrical faults, ensuring consistent performance over time.

The design of the TA-1400 emphasizes user-friendliness, with intuitive controls and indicators that provide real-time feedback on the status of the amplifier. Users can easily adjust levels, monitor input signals, and gauge overall performance without any hassle.

Another noteworthy characteristic of the TA-1400 is its lightweight and compact form factor. This makes it easy to transport and install in various settings, providing flexibility for different configurations. Additionally, the unit can be mounted in a standard 19-inch rack, accommodating professional setups.

In summary, the TOA Electronics TA-1400 amplifier stands out for its powerful output, versatile input options, built-in protection features, intuitive interface, and portability. These attributes make it a vital component in achieving high-quality sound in any audio installation, whether for live events, educational environments, or commercial spaces. Its reliability and performance make it a trusted choice for audio professionals looking to elevate their sound solutions.
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