7Band Audio Equalizer and Headphone Amplifier Deliver precise sound shaping and versatile connectivity for enhanced listening experiences. Designed with quality components for professionalgrade audio control and reliable performance. Key Features and Benefits: Sound Control: Offers a 7band equalization circuit with a ±12dB control range, enabling precise adjustments to the frequencies 60Hz, 150Hz, 400Hz, 1kHz, 3kHz, 6.5kHz, and 15kHz. Built using original TL074 chips from TI or ST for consistent, quality sound processing. Enhanced Audio Performance: Equipped with 4580 op amp technology providing 5x amplification (14dB gain) for clear, powerful audio output. input impedance of 20K ensures accurate signal reception, while low 600ohm output impedance maintains clean, distortion delivery. Universal Headphone Compatibility: Integrates a NE5532based Type 47 headphone driver circuit, capable of driving all types of headphones with ease. Adjustable and low frequency settings allow custom tuning to preferences or different music genres. Versatile Connectivity: Features a 3.5mm input interface supporting 4pole plugs. Allows headset output connectivity with builtin microphone support, making it suitable for use with cell phones for standard voice calls. Additional group interface connection is available for extended setup options. Practical Applications: 1. Home Audio System Enhancement: Improve sound dynamics in home stereo setups by finetuning each frequency band to match room acoustics and listener preferences. 2. Professional Studio Monitoring: Achieve accurate tonal balance during audio production or mixing sessions, ensuring every detail is captured and adjusted precisely. 3. Portable Listening Upgrade: Use with headphones and mobile devices for onthego fidelity listening and clear voice communication during calls. Specifications: Equalization Bands: 60Hz, 150Hz, 400Hz, 1kHz, 3kHz, 6.5kHz, 15kHz Control Range: ±12dB per band Preamplification Gain: 14dB (4580 op amp) Input Impedance: 20K ohms Output Impedance: 600 ohms Headphone Driver: NE5532 Type 47 Interface: 3.5mm 4pole input, headset with microphone output, additional group interface Built for audio enthusiasts seeking precision control, powerful amplification, and flexible connection options across a wide range of devices.