Command your bass with precision and peace of mind. The Down4Sound LED Bass Knob combines illuminated style, reliable voltage monitoring, and ultra-precise control in one compact unit.

• Integrated Digital Volt Meter – Monitor system voltage in real-time
• Clickable Potentiometer – Prevents accidental adjustments; stays locked until you turn it
• Smooth, Precise Bass Control – Fine-tune your output instantly
• Rugged Red LED Housing – Glows with a bold D4S hex pattern design
• Easy In-Line Install – RCA pass-through connections for universal fit
• Voltage Range: 7V–18V
• Rca cable lengths for Input / Output -  14"