NAD C658 + C298

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The NAD C658 + C298 streaming preamplifier and stereo power amplifier system pairs high-resolution BluOS network decoding with Purifi Eigentakt power amplification for accurate two -channel audio reproduction. This preowned package incorporates Dirac Live room correction and Modular Design Construction (MDC) expansion slots to ensure precise acoustic tuning and forward-compatible hardware integration across diverse domestic environments.The Hi-Fi Centre Team TakeOperating the C 658 preamplifier via the BluOS platform delivers swift, responsive access across network storage and lossless streaming libraries. In daily operation, the C 298 power amplifier operates with an exceptionally quiet noise floor, rendering low-level dynamic detail with clarity even at modest volume settings. Implementing the included Dirac Live calibration mitigates low-frequency standing waves in challenging rooms, producing a tight, articulate bass response. The combined system manages source switching, digital conversion, and clean speaker drive without sonic coloration.Key Acoustic & Design Features Purifi Eigentakt Amplification: Delivers clean, low-distortion current into demanding loudspeaker loads with negligible harmonic or intermodulation distortion. Dirac Live Calibration: Analyses acoustic room reflections to correct frequency response and impulse timing anomalies. BluOS Multi-Room Architecture: Enables native 24-bit/192kHz music streaming, local library indexing, and two-way aptX HD Bluetooth transmission. Authorized Dealer Support: Hi-Fi Centre is an Authorized Dealer, providing verified component inspections, full warranty coverage, and dedicated technical support. Technical Specifications Brand & Model: NAD C 658 & NAD C 298 Component Type: BluOS streaming DAC preamplifier and stereo power amplifier Continuous Power Output: 185 W per channel into 8 ohms, 340 W per channel into 4 ohms (stereo); 620 W into 8 ohms (bridged mono) Digital Processing: ESS Sabre 32-bit DAC, BluOS high-resolution streaming, Dirac Live room correction Analogue & Digital Inputs: 2 x optical digital, 2 x coaxial digital, 2 x single-ended line RCA, 1 x MM phono, 1 x stereo balanced XLR (C 298), 1 x stereo single-ended RCA (C 298) Outputs: 1 x balanced XLR pre-out, 1 x single-ended RCA pre-out, 2 x mono subwoofer outputs, multi-way speaker binding posts Network & Connectivity: Gigabit Ethernet, dual-band Wi-Fi, two-way aptX HD Bluetooth, USB-A host port Condition: Preowned, like-new condition Show more