Precise, durable graphic equalizer for better sound control and reliable headphone use Key benefits Accurate tone shaping: 7-band equalization with a control range of ±12 dB and multi-frequency bands lets you dial in precise highs, mids, and lows to solve harsh trebles, muddy bass, or inconsistent playback across sources. Cleaner signal path: Uses TI or ST original TL074 op-amps to preserve clarity and reduce distortion during adjustments. Headphone-ready output: Built-in NE5532 ear amplifier with a type 47 headphone driver circuit drives a wide range of headphones and allows independent highs/lows adjustment for consistent monitoring and listening. Built for everyday use: Robust aluminium alloy housing provides strength, corrosion resistance, and long-term stability for desktop or rack use. Easy connectivity and mobile compatibility: 3.5 mm input that supports a 4-pin plug plus an output designed to work with headsets that include a microphone so normal voice calls on mobile phones remain functional. Main features 7-band graphic equalizer: precise multi-frequency control, ±12 dB adjustment range per band. Amplification and drivers: NE5532 ear amplifier and type 47 headphone driver circuit for effective headphone control. High-quality op-amps: TI or ST original TL074 to maintain audio fidelity. Construction: durable aluminium alloy enclosure for stability and corrosion resistance. Power and channels: DC 5V–12V power supply; dual-channel (stereo) sound output. Interface: 3.5 mm input (supports 4-pin plugs); output compatible with headsets that include a microphone for normal mobile voice calls. How this product solves common problems Fix inconsistent playback between tracks or sources by shaping problem frequencies with ±12 dB band control. Avoid low-level distortion or weak headphone drive thanks to the NE5532 amplifier and type 47 driver circuit. Reduce hardware wear and environmental damage with a corrosion-resistant aluminium housing. Maintain normal mobile call functionality when using headsets, removing the need to switch cables or adapters. Practical use scenarios Home audio setup: Fine-tune your living-room stereo or desktop speakers to remove room resonances and get a more balanced sound for music and movies. Headphone monitoring and content creation: Adjust precise frequency ranges while recording, streaming, or editing audio to ensure accurate monitoring without swapping gear. Mobile headset compatibility: Use on-the-go with smartphones and headsets that include a mic—control tone for calls and music while retaining normal call functionality. Technical reminders Requires DC 5V–12V power supply. Stereo (dual channel) output. 3.5 mm input supports 4-pin plugs; output supports headsets with microphone for normal voice calls. Uses TI or ST original TL074 op-amps and an NE5532 ear amplifier with type 47 headphone driver circuit. Constructed from aluminium alloy for strength and corrosion resistance. This equalizer is designed for users who need precise tonal control, reliable headphone performance, and straightforward mobile headset compatibility without compromising build quality.