One tetrahedron with 5in drive unit (30cm equilateral triagle side) gives great bass for its size especially when the back wave of vibrating linoleum sides is terminated and reflected by approaching the corner of a room, see previous posts?
How would 3in drive unit ones sound with one transistor or one electron tube amplifier operating in class A (electrons flowing all the time), eg Pleiades BD139 or Pleiades DL33?
(At your risk, any current or voltage can be dangerous. All safety procedures should be followed. Including ear protection from high SPLs.)
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