TOA Electronics TA 1400 user manual Unbalanced inputs, TIP HOT Ring Cold Sleeve SHIELD/GROUND

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Within the Neutrik® Combojack there is a ¼”(6.3mm) phone jack, which is wired in parallel with the XLR.

TIP

HOT

RING

COLD

SLEEVE

SHIELD/GROUND

Figure 6. ¼” TRS plug

The input impedance is high enough (20 kohms balanced) to allow ”daisy-chaining”, or multiple parallel input connections. The headroom of the input circuits is also high enough to accept the maximum output level from virtually any low-level signal source. Balanced signals are less sensitive to AC hum and radio interference. The source impedance should be less than 1 kohms to avoid high frequency loss in long cables.

To daisy chain amplifiers, use the screw-terminal (Phoenix connector), labeled Link, provided on each channel. It is connected in parallel with the Neutrik® Combo jack on each input.

7.1.2 Unbalanced inputs

To connect an unbalanced source, tie pin 3 (ring on TRS jack) down to the shield of the connector. If you leave one pin disconnected, you will lose 6 dB.

A better method for using unbalanced sources is shown in Figure 8. This is similar to the connection for balanced lines, but pin 3 is connected to the shield at the source. The hum and noise rejection for the cable is equivalent to that for a balanced line. To minimize hum in the audio, use balanced inputs whenever possible.

Figure 7. Unbalanced line connection

Figure 8. Balanced line with unbalanced

 

equipment

For two-channel (stereo) operation, use both channels A and B. For tandem stereo or bridged mono operation, use only one of the inputs. See operation modes for more details.

 

 

 

Tannoy Limited

11

TA 1400 User Manual

11-06-02

 

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Contents Page Contents Explanation of graphical symbols Important Safety InstructionsApprovals User responsibility Speaker damageSpeaker output hazard Radio interferenceProtect indicator IntroductionUnpacking Front PanelRear Panel Rear Panel Features Gain switchDIP-switch SensitivityLink switch Stereo modeTandem mode Bridge mono modeInstallation Bridge mono mode featuresMounting CoolingPower consumption Operating voltageDenmark SwitzerlandConnections CalculationInput connections Balanced inputsUnbalanced inputs TIP HOT Ring Cold Sleeve SHIELD/GROUNDOperation precautions Connecting speakersThey are wired in the following manner OperationProtection Features Powering up Soft startClip Limiter Maintenance TroubleshootingWarranty General

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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