This Miraphone contrabass trombone model 670 in BBb is the archetype of what people think as a contrabass trombone. With its double looped slide and double loop bell section, the Miraphone stands out among all others.
Double slide with 7 positions, conical bore 14.0 - 15.6 mm (0.550 - 0.613 inch)
Rotor is a traditional quart valve, lowering the pitch a perfect fourth to FF
Gold brass body and bell with nickel slide tubes and all nickel trim
New "lighter" weight hand slide design
2 water keys
Sold a la carte or with choice of Protec case, Cronkhite black Cordura case or Cronkhite black leather case (not shown)