Acustik-Lab Stella Novus
Mat finish (MBK) : ¥ 720,000 (1 unit, around 2002)
Lacquer finish (PBK, ERD) : ¥ 800,000 (1 unit, around 2002)
Commentary
Active subwoofer system with microprocessor controlled MFB (motional feedback).
The unit has 2 20 cm inverted dome type woofers.
This unit can play flat low-frequency limits up to 10 Hz.
Microprocessor controlled MFB system is adopted.
In the MFB system, the amplitude of the diaphragm is detected by the accelerometer set in the speaker unit, and this is read as the acoustic radiation impedance of the feedback from the room and sent as data to the built-in microprocessor.
Based on this data, the processor uses a special algorithm to calculate and output what signal the power amplifier should output in response to the input music signal.
The enclosure is hermetically sealed.
In addition, there were 3 kinds of variations of the appearance, ERD, MBK and PBK.
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Model Rating
| Method | Built-in Amplifier / 1-Way / 2-Speaker / Sealed Type / Floor Type |
| Units Used | For Ultra Low Band : 20 cm Reverse Dome x2 |
| Frequency characteristic | 10 Hz to 500 Hz -3dB |
| Sensitivity | 96dB/W/m |
| Memory | 20 Patterns |
| Low pass | 24dB/oct |
| Variable range | Level : 100 + / - 10 dB Cross : 25 Hz ~ 500 Hz Phase : positive phase (0 °), negative phase (180 °) Response : -20 to + 20 |
| Power consumption | 6 VA (standby) 10 VA (No Signal) 350 VA at maximum output |
| External dimensions | Width 370x Height 635x Depth 420 mm |
| Weight | 30kg |