The 20-cm midrange driver consists of an Omniex membrane that weighs only 8 grams. It is mounted with a hard suspension that produces almost no throw at all.
The lightweight, highly responsive midrange driver is a proprietary development, enabling seamless soft coupling via an ultra low-loss frequency crossover with exceptional impulse fidelity. Considering its superb resonance and distortion characteristics, this driver represents a perfect match for the CORONA plasma tweeter.
As a wideband system, it also provides a perfectly phase-optimized crossover network using just two components of the highest quality. The partially active concept and the high degree of speaker efficiency also permit the use of smaller amplifiers, for example, based on tube technology.
Thông số kỹ thuật Lansche No 4.2:
- Thiết kế: semi-active speaker, 2-way closed speaker with integrated active subwoofer
- Loa Tweeter: 1 x 0,3 in. CORONA plasma tweeter
- Loa Midwoofer: 1 x 8 in. paper-coated cone
- Loa active Woofer: 2 x 10 in. long neck construction
- Tần số cắt: 2.5 kHz
- Trở kháng: 8 Ω (nominal) – 6.2 Ω (minimum)
- Độ nhạy: 96 dB / 1 W / 1 m
- Dải tần đáp ứng: 15 Hz – 150 kHz ±3 dB
- Kích thước: 44.0 x 11.4 x 20.0 in. (H x W x D)
- Trọng lượng: 70 kg (154 lbs)
- Amplifier 1 x 1.200 Watt (power output)