7 Band Sound Equalizer with 3.5mm Input, ±12dB Dual Channel Audio Equaliser

Precise Seven Band Equalisation This seven band sound equaliser puts precise tonal control at your fingertips. The seven band circuit offers a ±12 dB adjustment range across 60 Hz, 150 Hz, 400 Hz, 1 kHz, 3 kHz, 6.5 kHz and 15 kHz, allowing you to fine tune the audio to suit your listening preferences. The circuit is built around a TI or ST TL074 operational amplifier for reliable, quality performance. Powerful Amplification The equaliser delivers powerful amplification with a five times gain stage providing up to 14 dB of boost. This is achieved using the 4580 Classic operational amplifier, which is well suited to increasing audio output. The unit offers a 20 kΩ input impedance and a 600 Ω output impedance, making it a practical addition to a range of audio setups. Versatile Connectivity Connectivity is handled through a 3.5 mm input interface that accepts four pole plugs, making it compatible with microphone equipped headsets for calls on mobile phones. A group interface is also included for added flexibility when integrating the unit into your existing audio chain. Enhanced Listening Experience The inclusion of an NE5532 ear amplifier and a type 47 headphone driver circuit helps deliver clear, detailed sound. Adjustable high and low frequency controls allow you to tailor the output to drive different headphones effectively, giving you greater control over your listening experience.