Yamamoto Sound Craft PB-21 & PB-20 Ebony Spike Base Set

The setting bases PB-20 and PB-21 can be used individually or in combination for amplifiers and speakers. They are made from African blackwood, one of the hardest and strongest materials among all woods (scientific name: African Black Wood). This material has become rare, but it is actually used in instruments like oboes and clarinets, known for its excellent resonance.

With moderate spike penetration, you can achieve a clear and tight sound.

PB-20 has a pin shape and can be placed directly under amplifiers or speakers for point support. PB-21 has a concave shape and can be used as a receiving base under the pins of speakers or amplifiers with spike pins. Additionally, by combining PB-20 and PB-21 to create a top and bottom structure under amplifiers, both the upper and lower surfaces become flat, providing stability and supporting audio equipment with three or four-point support.

Typically, these pinpoint bases often use metal, but metal spikes can produce characteristic resonant sounds. By combining our PB-20 and PB-21 with hard wood, these resonant sounds can be prevented, resulting in a pleasant and clear playback sound. Especially when metal spikes are received by a metal plate, resonant sounds can easily occur, but by combining with PB-21, the metal spikes penetrate moderately, stabilizing and preventing metallic resonance.
PB-20

PB-21