Looking at the Temperance it becomes clear that this speaker is produced industrially:
simple and carefully thought out solutions by Harald Hecken and a cabinet that is easy to
assemble despite many parts. This plus high quality crossover components result in an
excellent sound reproduction.
The latest Temperance version is equipped with a tweeter Scan Speak D2604-833000 (new 9/2016)
that improves the sound quality quite considerably.
Midrange Newtronics M17-4
and three bass drivers Newtronics BM17-8
have high quality die cast baskets.
Temperance III kit without cabinet,
price per pair:
Temperance Building Instruction
Temperance high-end kit without cabinet
due to the four midrange and bass drivers configured in parallel we recommend to use a solid high current amplifier, since the Temperance's impedance at low frequencies falls below 3 Ohm.