Introduction, Unpacking, Front Panel | TOA Electronics TA 1400

If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of the following measures:

•Reorient or relocate the antenna.

•Increase the separation between the equipment and receiver.

•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

•Check if the affected unit complies with the EMC limits for immunity, (CE-labelled). If not, address the problem with the manufacturer or supplier. All electrical products sold in the EC must be approved for immunity against electromagnetic fields, high voltage flashes, and radio interference.

•Consult the dealer or an experienced radio/TV technician for help.

4 INTRODUCTION

Thank you for purchasing a TANNOY power amplifier. This manual contains important information on operating your amplifier correctly and safely. Please take some time and read this manual to familiarize you with the advanced features of this amplifier.

4.1 Unpacking

Carefully open the shipping carton and check for any noticeable damage. Every Tannoy amplifier is tested and inspected before leaving the factory and should arrive in perfect condition. If found to be damaged, notify the shipping company immediately. Only the consignee may institute a claim with the carrier for damage incurred during shipping. Be sure to save the carton and packing materials for the carrier's inspection.

It is also advisable to save the carton and packing material, even if the amplifier is undamaged. Should you ever need to ship the amplifier, always use the original packing.

4.2 Front Panel

Figure 1 front panel

1. Input level attenuators

These controls are used to alter the signal level entering the amplifier. They are calibrated in dB to assist the setup of active loudspeaker systems or cut down unwanted noise from the input signal. (See page 13).

2. Protect indicator

This indicator illuminates if the amplifier tries to operate above its maximum operating temperature (90°°C). The indicator first comes on as a warning to either turn down the input level or check the cooling arrangements. Beyond the maximum temperature the amplifier will mute the input signal. Once the cooling fans have brought the output heat sinks back to normal operating temperature the input signal is un-muted.

This indicator also illuminates when signals above 12 kHz are continuously present at full power at the output terminals or if short circuit protection is activated. If this occurs the input signal is muted, and the process cycles until the VHF signal is no longer present or the short is removed. (See page 14).


Tannoy Limited	4
TA 1400 User Manual	11-06-02

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.