MI Audio Boost ’N’ Buff Effects Pedal

The Boost ’N’ Buff is a super-quiet, Class A boost and buffer that can lift your signal hard while keeping your tone clear and punchy. With three EQ voicings (Full, Mid, Treble) and plenty of headroom from its internal voltage conversion, it is brilliant for pushing an amp, tightening a pedalboard signal chain, or simply bringing life back to long cable runs.

• Circuit and function: Class A (single-transistor) boost plus ultra-high impedance buffer, selectable EQ modes FULL, MID, TREBLE.
• Boost range: up to 35 dB available gain (mode dependent).
• Input impedance: 5 MΩ.
• Output impedance: <10 kΩ with boost on, <0.1 kΩ with boost off (buffer on).
• Bypass switching: heavy-duty 3PDT switching with buffered bypass, newer versions also mention a true-bypass option.
• Power: 9V battery or 9V DC supply only, 2.1 mm, centre-negative.
• Internal operating voltage: internally generates about 24V DC for extra headroom.
• Current draw: about 10 mA.
• Controls: Volume, Gain, plus EQ mode switch.
• Size: 55.9 mm x 109.2 mm