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 
Audio Magazine Spica Angelus, September 1991
International Audio Review Spica Angelus (date not known)
Stereophile
- February 1988, Spica Angelus XI-2
- January 1990, Spica Angelus XIII-1
- April 1990, Spica Angelus XIII-4
- April, 1993, Spica Angelus XVI-4
- October, 1993, Spica Angelus XVI-9
Specifications:
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.
Schematics:
Replacement Drivers:
- Woofer: TX20X2SRSC, 8 Ohm Audax (FR) / Polydax (US)
(Specs for TX20.25RSN2CN12 similar model) - Tweeter: HD12X9D25, 8 Ohm Audax (FR) / Polydax (US)
