Boost the sound coming through your headphones! Fully assembled, hand tested Bass Boost cMoy v2.03 headphone amplifier. Includes a number of option selections for DIY’ers.

Standard Features include:

• Alps RK097 Volume Control and On/Off Switch
• Bass Boost Toggle Switch
• DC Auxiliary Power Jack
• Automatic On/Off
• Texas Instruments OPA2227 Opamp in Gold-Plated DIP Socket
• Texas Instruments TLE2426 Precision Virtual Ground (2x optional)
• Decoupling Capacitors on All IC Supply Pins
• Custom 2-Layer PCB: Compact Layout with Ground Plane

• Includes 9V battery and instruction sheet