Hi-Fi Active Speaker

High-Fidelity Active Bookshelf Speaker System

• Specialized Air-Motion Tweeter: Features a special silicide diaphragm measuring 114 × 70 mm, providing a large radiating area, wide frequency response, and powerful output for smooth, rich, and transparent high-frequency reproduction.
• Optimized Tweeter Design: The air-motion tweeter has been specifically redesigned for the DSP-7A, offering a wider frequency response, higher power handling, and smoother, richer treble performance.
• Custom-Designed 6.5-Inch Woofer: Developed specifically for the DSP-7A, the woofer features an aluminum frame, a carbon-sprayed composite diaphragm incorporating mica, and a 35 mm CCA flat-wire voice coil. Its newly designed suspension system further reduces distortion caused by cone breakup, improving transient response and resolution across the mid and low frequencies.
• High-Quality Power Supply: Each speaker enclosure features an independent high-quality toroidal transformer, with separate windings supplying the high- and low-frequency amplifiers. Schottky diodes and ELNA for AUDIO electrolytic capacitors are used in the rectification and filtering circuits to provide ample power. The DSP-7A further optimizes power-supply filtering to enhance system immunity to interference.
• Direct Amplification with Active Crossover: Eliminates the conventional passive analog crossover, with each driver powered directly by its own dedicated amplifier. This design avoids the energy losses and phase shifts associated with inductors and capacitors in traditional crossover networks.
• Dedicated Amplification: Uses amplifier circuits carefully matched to the characteristics of each driver, with an 80 W Class AB amplifier for the tweeter and a 180 W Class D amplifier for the woofer.
• Advanced DSP Processing: The electronic crossover incorporates a dedicated Cirrus Logic audio DSP processor with 32-bit oversampling processing to provide the processing power required for system operation.
• OCEAN Sound 2.0 Technology: Combines a DSP-based electronic crossover architecture with the upgraded OCEAN Sound 2.0 core algorithm, enabling point-by-point frequency and phase correction at 5,700 sampling points across the frequency response range to reproduce music as faithfully as possible.
• High-Precision Clock Synchronization: Employs a high-grade active servo crystal oscillator and communication-grade clock processing technology to provide highly accurate synchronization signals for digital circuits, including the DSP and DAC.
• High-Performance 24-bit/192 kHz DAC: Integrates a high-performance Cirrus Logic decoder supporting D/A conversion of linear PCM signals at 44.1, 48, 88.2, 96, 176.4, and 192 kHz via coaxial and optical digital inputs. Combined with the OCEAN Sound 2.0 system architecture, it delivers more precise PCM conversion and enhanced decoding performance for high-resolution audio files.
• Direct Digital Signal Processing: Uses low-level data transfer protocols between the DSP and DAC to eliminate audio quality degradation caused by sample rate conversion (SRC), combining high-precision decoding with high-quality musical reproduction.
• Bluetooth 5.0 Connectivity: Features built-in Qualcomm Bluetooth 5.0 and supports SBC, AAC, aptX, and aptX HD audio codecs. Specialized software optimization and low-latency processing compensate for the characteristics of Bluetooth audio compression and transmission, allowing easy music playback from smartphones, tablets, and computers.
• Driver-Free USB Audio: Features a built-in USB audio interface that connects directly to computers running macOS, Windows, or Linux without requiring additional driver installation.
• Innovative Preamplifier Design: Delivers lower nonlinear distortion and preserves rich musical details at both low and high listening volumes.
• Independent Input Volume Memory: Allows the volume of each input channel to be adjusted and stored independently. Its distinctive preamplifier design helps balance output-level differences between audio sources for a more consistent listening experience.
• Fully Balanced Signal Path: Features a balanced circuit design throughout audio input, transmission, processing, and amplification, providing strong resistance to interference and a wide dynamic range.
• High-Quality Analog Audio Circuitry: Uses Texas Instruments OPA2604 high-performance audio operational amplifiers for differential amplification in each high- and low-frequency channel.
• Four-Layer Gold-Plated PCB: Features a four-layer printed circuit board with gold-plated finish, providing complete isolation between power ground, signal ground, digital ground, and analog ground.
• Premium Audio Components: Incorporates high-precision, low-noise metal-film resistors, 24K gold-plated relays, and ELNA and WIMA audio-grade coupling capacitors to ensure an excellent signal-to-noise ratio and a quieter musical background.
• Reliable Connections: Uses connectors and components from leading suppliers, including NEUTRIK, to enhance connection reliability.
• Wide Frequency Response: Delivers a frequency response of 38 Hz–40 kHz (±3 dB) and a peak maximum SPL of 109 dB for accurate, clear, and natural sound reproduction.
• Premium Cabinet Finish: Constructed from custom high-quality MDF with carefully selected wood veneer or a hand-finished piano-lacquer finish. The matching piano-lacquer speaker stands, combining wood and leather elements, complement the home interior.
• Dimmable Listening Environment: Features a delayed LED indicator shutoff function to minimize visual distractions and create a more comfortable listening experience in dark environments.
• Full-Function Infrared Remote Control: Comes with a thoughtfully designed infrared remote featuring large, clearly arranged buttons and durable metal dome switches for reliable operation and convenient control.
• Versatile Applications: Suitable for near-field monitoring in professional audio production, vocal and instrumental music instruction and reference listening, content creation, Hi-Fi music listening, high-quality computer multimedia, high-fidelity TV audio reproduction, background music in studies and tea rooms, and high-quality conference sound reinforcement.