The Spica Angelus furthered the state of the art in dynamic speaker system performance. Featuring exceptional spatial resolution, neutral tonal balance, and a unique and attractive shape. Like its forerunner the TC-50, the Angelus evolved from a combination of advanced theoretical work and years of experience in sound reproduction. It is another major step toward the realization of holographic imaging in stereo reproduction.

The Angelus, dedicated by its designer John Bau to the memory of Richard Heyser.


Angelus Reviews

Absolute Sound Spica Angelus Jul 1989, vol 14, issue 60 pdf

Audio Magazine Spica Angelus, September 1991 pdf

International Audio Review Spica Angelus (date not known) pdf



Released: 1987, est. 2,000+ units
Description: Two-way, floor-standing loudspeaker.
Bass loading:
sealed-box, system resonance at 34Hz with a Q of 0.5.
Drive-units: 1" soft-dome tweeter, 8" TPX-coned bass/midrange driver.
Frequency response: 45Hz-17.5kHz (-3dB) / (90Hz-15kHz ±1.5dB).
Crossover frequency: 3.4kHz.
Sensitivity: 87dB/W/m.
Impedance: 8 ohms (min. 5.8 ohms at 8.5kHz).
Amplifier requirements: 20-200W.
Dimensions: 46" H x 21" W x 10.25" D.
Internal volume: 2.5 cu.ft.
Weight: 65 lbs each.
Price: $949/pair-$995/pair (1988); $1275/pair (1993).
Approximate number of dealers: 140.


Replacement Drivers:

  • Woofer: TX20X2SRSC, 8 Ohm Audax (FR) / Polydax (US)
    (Specs for TX20.25RSN2CN12 similar model)
  • Tweeter: HD12X9D25, 8 Ohm Audax (FR) / Polydax (US)