About the Speakers Aulos
The Oskar Heil Aulos loudspeakers are a high-fidelity bookshelf speaker system designed around the innovative Air Motion Transformer (AMT) tweeter technology invented by physicist Oskar Heil. The AMT tweeter uses a folded diaphragm that moves air five times faster than conventional drivers, resulting in enhanced dynamic range and broad frequency response from 1050 Hz to 23 kHz. The woofer is a 6.5-inch driver angled at 45 degrees to maintain correct phase alignment, covering frequencies from 45 Hz to 1050 Hz. The speakers employ a 2-way bass reflex design with dual front bass ports, contributing to well-defined and forceful bass performance. The cabinet is finished in real wood veneers such as maple, cherry, walnut, or black ash, and measures approximately 205 x 275 x 392 mm, weighing about 9.9 kg each. Sensitivity is rated at 89-91 dB at 1 watt/1 meter with a nominal impedance of 4 ohms, making them compatible with a wide range of amplifiers. Praised for their natural, coherent sound and ease of placement, the Aulos speakers are considered a standout choice in their price range, They are noted for their refined midrange and treble, clear soundstage, and balanced bass without excessive punch, suitable for long-term listening enjoyment.
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