AN7330 Dual Channel 3 Bands Graphic Equalizer

The AN7330 Dual Channel 3 Bands Graphic Equalizer is a high-performance integrated circuit designed for audio signal shaping, tone control, and multi-band equalization in stereo sound systems. Engineered for professional and consumer-grade audio equipment, this IC provides precise filtering across three adjustable frequency bands, enabling sound engineers, audio developers, and electronics enthusiasts to fine-tune tonal balance with exceptional clarity and low distortion. The AN7330 Dual Channel 3 Bands Graphic Equalizer is widely integrated into home audio systems, karaoke machines, mixing consoles, musical instruments, portable speakers, and DIY audio enhancement projects.

This IC combines dual-channel processing with independent left and right equalizer sections, allowing accurate stereo audio modification without channel interference. Its internal architecture supports low-noise amplification and stable frequency response, ensuring clean audio reproduction even at high gain levels. The chip’s design reduces the need for external components, simplifying circuit layouts and enhancing durability.

With its strong performance in bass, midrange, and treble equalization, the AN7330 provides excellent control for audio customization. It is especially useful for improving clarity in vocals, boosting bass richness, enhancing treble sharpness, and adjusting mid-tone balance for professional audio tuning.

Key Features

• Advanced AN7330 Dual Channel 3 Bands Graphic Equalizer for stereo audio processing

• Three independent frequency bands for detailed tone control

• Dual-channel operation suitable for left/right stereo adjustment

• Low noise, low distortion audio output

• High signal-to-noise ratio for clean, professional sound

• Compact IC footprint for easy PCB integration

• Stable frequency characteristics across varying input levels

• Ideal for home audio, professional mixing, and embedded audio systems

Applications

The AN7330 Dual Channel 3 Bands Graphic Equalizer is ideal for:

• Stereo amplifiers and audio receivers

• Karaoke machines and sound processors

• Guitar and keyboard equalizer pedals

• Portable Bluetooth speaker systems

• Audio mixing consoles and recording equipment

• Home theater systems and multimedia players

• Automotive audio equalization

• DIY audio enhancement and tone control projects

Data Sheet (Technical Specifications)

• Model: AN7330

• Function: Dual-channel, 3-band graphic equalizer

• Package Type: DIP / SIP (variant dependent)

• Supply Voltage: Typically 9V–15V

• Frequency Bands:

  • Bass: ~100Hz

  • Midrange: ~1kHz

  • Treble: ~10kHz

• Total Harmonic Distortion (THD): Very low, optimized for audio clarity

• Signal-to-Noise Ratio: High, ensuring clean sound output

• Channel Separation: Strong stereo isolation

• Input Impedance: High impedance audio input

• Output Drive Capability: Suitable for line-level audio stages

• Operating Temperature: –20°C to +75°C

• External Components Required: Minimal capacitors and resistors for filter tuning

Benefits

• Enhances audio clarity and tonal definition

• Provides professional-grade equalization in compact form

• Low distortion design improves sound accuracy

• Excellent stereo consistency for dual-channel audio devices

• Easy to integrate in both consumer and professional circuits

• Perfect for upgrading or repairing sound systems

• Highly reliable and stable under continuous operation

Why Choose This Model?

offers unmatched versatility and performance for audio tone control applications. Its ability to independently control bass, mid, and treble across dual channels makes it essential for audio developers and sound engineers who require precision equalization. Whether you’re designing new audio equipment, repairing existing devices, or building custom audio projects, this IC provides the clean, stable, and customizable sound shaping needed for high-quality audio output.