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Title: Kmine Z4876 5‑Band Acoustic Guitar Preamp  
Category: Audio Electronics  
Brand: Kmine  
Description: A compact 5‑band EQ preamp for acoustic guitars with precise loudness contour and phase switch control.  
Details: Features bass, mid‑range, and treble adjustments ±12 dB, a phase reversal switch, and operates on a 9 V DC battery.

Price is $