Wide Range Amplifier Technology (WRAT)
Originally available only on our high-end models, Onkyo’s exclusive WRAT offers several breakthroughs in amplifier configuration. Firstly, its low negative feedback design achieves a frequency response out beyond 100 kHz, for stunningly high-resolution playback. Secondly, closed ground-loop circuits reduce circuit noise and keep the ground potential free of distortion. And thirdly, its high instantaneous-current capability enables dramatic, theater-like dynamics and clarity.
Discrete Output Stage Circuitry
Mini-systems made by our cost-cutting competitors typically employ just one circuit at the output stage. With multiple transistors crammed onto this single circuit, excess heat is generated and the audio signal is compromised. The CS-220, though, uses discrete amplifier technology similar to that found on our high-end receivers. Keeping the transistors separate at the output stage enhances cooling, so that the lifetime of the unit is extended and unwanted interference to the audio signal is reduced.
Wolfson® Single-Bit D/A Converter
The CS-220 features a state-of-the-art digital-to-analog converter from Wolfson, a world-leading name in mixed signal semiconductors for multimedia applications. The CS-220’s high-performance DAC supports sampling rates up to 192 kHz, and includes a serial interface port, digital interpolation filters and multi-bit sigma delta modulators. Exceeding the stringent Dolby ® Class A performance requirements, this DAC reproduces your audio signal with clarity and faithfulness rare in such a compact system.
Aluminum Volume Control & Front Panel
Onkyo’s renowned attention to build quality extends even to our most affordable models. While our competitors may skimp and use cheaper plastics, we offer superior materials and craftsmanship. Take, for example, the CS-220’s aluminum volume control, with its reassuringly solid feel. Or the matching aluminum front panel which gives the CS-220 a refined look that will last long into the future.
12 cm A-OMF Diaphragm Woofer & Aero Acoustic Drive for Natural-Sounding Bass
Onkyo’s redesigned A-OMF speaker diaphragms are stronger, more heat-resistant and provide improved transient response. With their vibration-absorbing pure cotton weave and thin yet rigid flexing diaphragms, A-OMF cones deliver superb mid-range clarity and imaging. Our original Aero Acoustic Drive technology, meanwhile, brings a new refinement to our existing bass-reflex speaker design. Oblong rather than circular, the Aero Acoustic Drive more effectively cut off high-frequency interference that can adversely affect your bass signal. With the CS-220, you’ll enjoy smoother, more authentic bass.
