Enhance your audio setup with this advanced Preamp Board featuring a dual NE5532 chip architecture designed for superior sound control and flexibility. Crafted with synthetic cardboard material for lightweight durability, this preamp board supports both DC 12-30V and AC 9-20V input voltages, making it a powerful and practical choice for various audio applications. Key Features: · Dual NE5532 Chip Architecture: Provides a 2.0 full-tone plus 0.1 bass structure, allowing precise control over the volume of each channel for a balanced and immersive audio experience. · Onboard Bass Frequency Regulator Potentiometer: Offers a wide adjustment range to blend the subwoofer seamlessly with mid-to-treble frequencies, ensuring harmonious sound without distortion. · Adjustable Bass Frequency and Phase: The phase switch design supports both non-inverting and see-saw amplifier modes, delivering powerful and customizable bass output tailored to your preferences. · Independent Output Interfaces: Separate full frequency and bass output interfaces provide convenient connectivity options for versatile audio configurations. · Wide Frequency Range: Covers full tone frequencies from 20Hz to 20kHz and bass frequencies from 20Hz to 200Hz, delivering rich, detailed sound across the spectrum. · Flexible Power Input: Compatible with DC 12-30V and AC 9-20V input voltages, enhancing usability across different power environments. Specifications: · Material: Synthetic Cardboard · Chip Model: NE5532 78M12 · Input Voltage: DC 12-30V / AC 9-20V · Architecture: Dual 5532 2.0 Full Tone + 0.1 Bass · Frequency Range: Full Tone 20-20KHz / Bass 20-200Hz · Features: 2.0+0.1 Controllable Volume, Adjustable Bass Frequency and Phase Package Includes: · 1 x Preamp Board This Preamp Board is an ideal solution for audio enthusiasts seeking precise sound tuning and powerful bass control. Its robust design and versatile input options make it suitable for enhancing home audio systems, DIY speaker projects, and professional sound setups. Experience clear, balanced sound with customizable bass that perfectly complements your audio environment.