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Technical Specifications
Audio and Performance
- Bi-Amplified Logic: Delivers 400 Watts to the LF driver and 50 Watts to the HF driver. Unlike later Class-D models, the B215A primarily utilizes a Class-AB output stage for the high frequencies, which many purists prefer for its smoother, less "clinical" treble response.
- Transducers: The 15-inch woofer is designed for high-impact bass reinforcement, while the titanium compression driver is mounted in a wide-dispersion exponential horn for broad audience coverage.
- Protection: Includes an integrated optical limiter that monitors signal peaks in real-time, preventing the "square-wave" clipping that can lead to voice coil overheating.
Connectivity and Control
- Integrated Mixer: Features two independent Mic/Line inputs (XLR and 1/4" TRS) with discrete volume controls, allowing for basic setup without an external mixing console.
- EQ Tailoring: Includes dedicated High and Low shelf EQ knobs on the rear panel, providing up to 15 dB of boost or cut to compensate for room acoustics.
- Link Output: A balanced XLR "Out" allows for easy daisy-chaining to additional active speakers.
Physical Build
- Enclosure: A rugged, trapezoidal plastic composite cabinet that works as a front-of-house speaker on a 35 mm pole mount or as a large-format floor monitor.
- Weight: 50.7 lbs (23 kg), notably heavier than the later "D" series due to its substantial internal heat sinks and large power transformer.
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