General Description, Features | TOA Electronics 1000 Series specs

General Description

The E-1231 is a single channel, 1/3 octave active graphic equalizer designed to allow clean, accurate audio equalization for stage, studio, or commercial applications.

The E-1231 provides 12dB of boost or cut at each of its 28 frequencies, which are centered at ISO 1/3 octave increments from 31.5Hz to 16kHz.

The E-1231's active bandpass/bandreject filters are designed for minimum phase shift, and feature smooth slide controls with center detents for easy and

accurate adjustment. (The filters are summed in parallel for reliability, so that

the failure of one filter does not interrupt operation of the others.)

In addition, continuously variable highpass filters are provided on the front panel. The highpass filter has a slope of 12dB per octave and is variable from 15Hz to 300Hz, while the lowpass filter can set for either a 6dB per octave slope or a 12dB per octave slope and is variable from 2.5kHz to 30kHz.

An input level control on the E-1231 gives ±12dB of adjustment to allow a wide variety of input sources. A LED indicator illuminates when either the input or the output comes within 3dB of clipping. In addition to the usual EQ in/out switch, an automatic EQ bypass function provides complete equalization bypass in the event of loss of AC power, and an output muting function suppresses turn- on/turn-off transients.

A security cover is included with the E-1231 to guard against accidental disturbance, or intentional tampering when used in fixed installations.

The E-1231 can be mounted in a standard 19" rack and occupies 3-1/2" of

vertical space.

Features

1. 28 filters on ISO 1/3 octave center fre-	8.	Variable input level control to accept varie-
quencies from 31.5Hz to 16kHz.		ty of input sources.
2. 12dB boost or cut at each center frequen-	9.	Automatic EQ bypass circuitry.
cy, continuously variable.	10.	A security cover is included.
	10.	A security cover is included.

3.High quality, low phase-shift active filters.

4.Precision calibrated, noiseless slide con- trols with center detent.

5.Equalizer In/Out switch.

6.Continuously variable highpass and low- pass filters.

7.LED peak indicator to detect clipping at input or output levels.

11.Filter In/Out switch

12.Lowpass filter can be set for either 6dB/oct or 12dB/oct.

13.Optional input/output transformers that convert electronically balanced input/out- put to transformer balanced input/output.

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1000 Series specifications

TOA Electronics has long been recognized as a leader in the audio and public address systems industry, and their 1000 Series amplifiers exemplify this reputation for excellence. Designed for versatility and high performance, the 1000 Series offers a blend of advanced technologies and user-friendly features, making it an ideal choice for various applications ranging from commercial installations to live sound settings.

At the heart of the 1000 Series is its robust amplifier technology, which delivers high power output and efficiency. With models available that can handle up to 1000 watts, these amplifiers provide reliable performance in demanding environments, ensuring clear audio reproduction even in large venues. The series employs Class D technology, allowing for a lightweight and compact design without compromising on sound quality. This is particularly advantageous for mobile applications and events where space is limited.

One of the standout features of the 1000 Series is its flexible configuration options. Users can choose from different input modules, allowing for customization according to specific needs. These amplifiers support a variety of input sources, including microphones, line-level sources, and even digital audio inputs, giving users the ability to create tailored solutions for their sound systems. The series also offers built-in mixing capabilities, enabling users to control multiple audio signals with ease.

In terms of connectivity, the 1000 Series is designed to integrate seamlessly with existing systems. Its balanced XLR inputs and outputs, as well as speaker terminal connections, ensure compatibility with a wide range of devices. The amplifiers are also equipped with advanced protection features such as short circuit and overload protection, which enhance durability and longevity in various operating conditions.

The 1000 Series amplifiers are designed with user-friendly interfaces, featuring intuitive controls that simplify operation. LED indicators provide real-time feedback on system status, ensuring users are always informed about performance metrics. Additionally, the series is built with rugged construction standards, making it suitable for both permanent installations and portable applications.

In summary, the TOA Electronics 1000 Series amplifiers combine power, flexibility, and reliability into a single package. With advanced technologies that enhance sound quality and ease of use, this series is an excellent choice for anyone needing a robust audio solution for their venue, event, or project.