Peerless 830869 is another one of those drivers
whose Thiele & Small Parameters do not correlate
with the manufacturers'. Even with my own
measurements, I had difficulties trying to make
this Peerless "Sing".
initial design was a 2-way with a JBL2425 coupled
to a JBL2342 Bi-Radial Horn (Fig 1). The Peerless
was loaded in a Bass Reflex box of 35 Liters. On
paper, it should be outstanding. However, in reality,
it was massively disappointing. For some reason,
the dynamics were missing. The music simply wasn't
conventional wisdom, I re-loaded the 830869 with
a smaller 20 Liters Bass Reflex box. At this volume,
the Peerless suddenly came alive. So much for computer
simulation. Surprisingly, this Peerless is more
musical than the Dayton RS180s and the HiVi M8a.