{"id":335859,"date":"2026-10-15T16:59:00","date_gmt":"2026-10-15T16:59:00","guid":{"rendered":"https:\/\/www.ecoustics.com\/products\/nad-c-359s-c-integrated-amplifier\/"},"modified":"2026-10-15T14:06:00","modified_gmt":"2026-10-15T14:06:00","slug":"nad-c-359s-c-integrated-amplifier","status":"publish","type":"post","link":"https:\/\/www.ecoustics.com\/products\/nad-c-359s-c-integrated-amplifier\/","title":{"rendered":"NAD C 359S Integrated Amplifier Bucks the Class D Trend With Class A\/B Power and BluOS for $1,299"},"content":{"rendered":"\n<p>For decades, NAD built its reputation on affordable integrated amplifiers that delivered more power and better sound than their modest specifications suggested. But the hi-fi landscape has changed. Today&#8217;s listeners want the familiar simplicity of a traditional stereo amplifier without sacrificing streaming, television connectivity, or the flexibility to build a modern 2.1-channel system. <\/p>\n\n\n\n<p>The challenge is delivering all of that without turning a straightforward piece of hi-fi equipment into another complicated computer with speaker terminals.&nbsp;NAD believes its new C 359S Class A\/B Integrated Amplifier ($1,299) offers a solution.<\/p>\n\n\n\n<p>It&#8217;s an interesting move from a Canadian manufacturer that has invested heavily in Class D amplification across its Classic and Masters Series. But NAD never completely abandoned Class A\/B. The excellent&nbsp;<a href=\"https:\/\/www.ecoustics.com\/reviews\/nad-c-316bee-v2-integrated-amplifier\/\">C 316BEE V2<\/a>, remains a reminder of what the company does so well. Earlier models such as the&nbsp;<a href=\"https:\/\/www.ecoustics.com\/products\/nad-c-356bee-stereo-integrated\/\">C 326BEE and C 356BEE<\/a>&nbsp;also helped establish NAD&#8217;s reputation for delivering serious amplification without the extravagant prices or unnecessary complexity that sometimes accompany high-end audio.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"522\"  itemprop=\"image\" src=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-angle.jpg\" alt=\"nad-c-359s-integrated-amplifier-angle\" class=\"wp-image-335918\" srcset=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-angle.jpg 1280w, https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-angle-768x313.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n\n\n\n<p>The&nbsp;<strong>C 359S<\/strong>&nbsp;isn&#8217;t simply a nostalgic return to those earlier designs. NAD has re-engineered its Class A\/B amplification approach using power supply technology derived from its more advanced Class D platform, while incorporating the connectivity and functionality expected from a modern integrated amplifier. The result is a design that attempts to bridge two generations of hi-fi without forcing buyers to choose between old-school simplicity and modern convenience.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-related-reading\">Related Reading:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.ecoustics.com\/products\/wiim-amp-ultra\/\">WiiM Amp Ultra: The Sonos Slayer Born From The Ultra And Amp Pro?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ecoustics.com\/reviews\/nad-c-316bee-v2-integrated-amplifier\/\">NAD C 316BEE V2 Integrated Amplifier Review [Updated]<\/a><\/li>\n<\/ul>\n\n\n\n<p> <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\"  itemprop=\"image\" src=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/image-112.png\" alt=\"image\" class=\"wp-image-335952\" srcset=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/image-112.png 900w, https:\/\/www.ecoustics.com\/wp-content\/uploads\/image-112-768x576.png 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-core-features\">Core Features<\/h2>\n\n\n\n<p>The NAD C 359S incorporates a two-channel Class AB amplifier rated to deliver 70 watts of continuous power per channel into 8 ohms or 120 watts per channel into 4 ohms, supported by a high-current, low-noise switch-mode power supply. In addition to its two amplified channels, the C 359S provides a subwoofer preamplifier output for connecting an external powered subwoofer of the user&#8217;s choice.<\/p>\n\n\n\n<p>As an integrated amplifier, the C 359S offers a selection of physical connections, including analog and optical digital inputs, a dedicated phono input for turntables, and HDMI eARC for accessing audio from compatible televisions. The amplifier also incorporates BluOS, providing access to a wide range of streaming services and wireless multiroom audio capabilities that extend its functionality beyond a conventional two-channel system.<\/p>\n\n\n\n<p>Bluetooth with aptX HD provides another wireless listening option, while a dedicated headphone output accommodates private listening. Additional technical details are included in the specifications chart below.<\/p>\n\n\n\n<p>The C 359S also offers flexible control options, including easy-to-use front-panel buttons, large rotary knobs, and a supplied infrared remote. Ethernet connectivity allows the amplifier to be integrated into compatible custom control systems, providing additional flexibility for more sophisticated installations.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"340\"  itemprop=\"image\" src=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/image-110.png\" alt=\"image\" class=\"wp-image-335944\" srcset=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/image-110.png 1280w, https:\/\/www.ecoustics.com\/wp-content\/uploads\/image-110-768x204.png 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-nad-c-359s-nbsp-specifications\">NAD C 359S&nbsp; Specifications<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>NAD Model&nbsp;<\/strong><\/td><td><strong>C 359S<\/strong><\/td><\/tr><tr><td><strong>Product Type&nbsp;<\/strong><\/td><td>Integrated Amplifier with BluOS<\/td><\/tr><tr><td><strong>Price<\/strong><\/td><td>$1,299 USD<br \/><br \/>$1,599 CAD<\/td><\/tr><tr><td><strong>Amplifier Class&nbsp;<\/strong><\/td><td>A\/B<\/td><\/tr><tr><td><strong>Number of Amplified Channels<\/strong><\/td><td>2<\/td><\/tr><tr><td><strong>Preamplifier Section<\/strong><\/td><td><strong>Preamplifier Section<\/strong><\/td><\/tr><tr><td><strong>Line In, Sub-Out (Analog bypass on)<\/strong><\/td><td><strong>THD (20 Hz \u2013 20 kHz) <\/strong>&lt;0.005 % at 4V out&nbsp;<br \/><br \/><strong>Signal-to-Noise Ratio<\/strong> &gt;90 dB (IHF; A-weighted, 500 mV out, unity gain)<br \/><br \/><strong>Input impedance (R and C)<\/strong> 28 kohms + 360 pF&nbsp;<br \/><br \/><strong>Maximum input signal<\/strong> &gt;3.7 Vrms (0.1 % THD)&nbsp;<br \/><br \/><strong>Output impedance<\/strong>: 440 ohms&nbsp;<br \/><br \/><strong>Input sensitivity<\/strong>: 160 mV (500 mV out, Volume maximum)&nbsp;<br \/><br \/><strong>Frequency response <\/strong>20 Hz &#8211; 20 kHz (\u00b10.3 dB)&nbsp;<br \/><br \/><strong>Maximum output voltage<\/strong> &gt;5 V (0.1 % THD)<\/td><\/tr><tr><td><strong>Line In, Headphone Out&nbsp;<\/strong><\/td><td><strong>THD (20 Hz \u2013 20 kHz)<\/strong> &lt;0.005 % at 1V out&nbsp;<br \/><br \/><strong>Signal-to-Noise Ratio<\/strong> &gt;110 dB (32 ohms load; A-weighted, 1V out, unity gain)&nbsp;<br \/><br \/><strong>Frequency response<\/strong> 20 Hz &#8211; 20 kHz (\u00b10.3 dB)&nbsp;<br \/><br \/><strong>Channel Separatio<\/strong>n &gt;60 dB at 1kHz&nbsp;<br \/><br \/><strong>Output Impedance<\/strong>: 5 ohms&nbsp;<\/td><\/tr><tr><td><strong>Amplifier Specification<\/strong><\/td><td><strong>Amplifier Specification<\/strong><\/td><\/tr><tr><td><strong>Line In, Speaker Out<\/strong><\/td><td><strong>Rated output power into 8 ohms <\/strong>70 W (20 Hz-80 kHz at rated THD, both channels driven)&nbsp;<br \/><br \/><strong>Rated output power into 4 ohms<\/strong> 120 W (20 Hz-80 kHz at rated THD, both channels driven)&nbsp;<br \/><br \/><strong>THD (20 Hz \u2013 20 kHz)<\/strong> &lt;0.03 % (250 mW to 120 W, 4 ohms)&nbsp;<br \/><br \/><strong>THD (20 Hz \u2013 20 kHz)<\/strong> &lt;0.03 % (250 mW to 70 W, 8 ohms)&nbsp;<br \/><br \/><strong>Signal-to-Noise Ratio<\/strong> &gt;90 dB (A-weighted, 500 mV input, 1 W out 8 ohms)&nbsp;<br \/><br \/><strong>Clipping power<\/strong> &gt;130 W (1 kHz 0.3 % THD, 4 ohms) &gt;75 W (1 kHz 0.3 % THD, 8 ohms)&nbsp;<br \/><br \/><strong>IHF dynamic power<\/strong> 8 ohms: 76 W, 4 ohms: 144 W, 2 ohms: 210 W&nbsp;<br \/><br \/><strong>Peak output current <\/strong>&gt;20 A (1 ohm, 1 ms)&nbsp;<br \/><br \/><strong>Damping factor<\/strong> &gt;210 (20 Hz to 1 kHz, 8 ohms) &gt;120 (10kHz, 8 ohms)&nbsp;<br \/><br \/><strong>Frequency response<\/strong> 20 Hz &#8211; 20 kHz (\u00b10.3 dB)&nbsp;<br \/><br \/><strong>Channel separation<\/strong> &gt;75 dB (1 kHz),&nbsp; &gt;70 dB (10 kHz)&nbsp;<br \/><br \/><strong>Input sensitivity (70 W in 8 ohms)<\/strong> 510 mV&nbsp;<br \/><br \/><strong>Power consumption, standby mode<\/strong> 0.5 W&nbsp;<br \/><br \/><strong>Maximum transmit power<\/strong> 7 dBm \u00b1 2 dBm&nbsp;<\/td><\/tr><tr><td><strong>Phono Input, Speaker Out<\/strong><\/td><td><strong>THD (20 Hz \u2013 20 kHz)<\/strong> &lt;0.05 % at 70 W out 8 ohms&nbsp;<br \/><br \/><strong>Signal-to-Noise Ratio<\/strong> &gt;82 dB (10 mV in; A-weighted, 1 W out)&nbsp;<br \/><br \/>I<strong>nput impedance (R and C)<\/strong>: 46 kohms\/100 pF&nbsp;<br \/><br \/><strong>Input sensitivity<\/strong> 3.95mV (60W out 1kHz, 8 ohms, volume maximum)&nbsp;<br \/><br \/><strong>Frequency response<\/strong> 20 Hz &#8211; 20 kHz (\u00b10.3 dB&nbsp;<br \/><br \/><strong>Note<\/strong>: The RIAA response is consistent with a pre-emphasis that is rolled off at 50 kHz by a second-order filter, such as used in Neumann cutting lathes.<br \/><br \/><strong>Maximum input signal at 1 kHz <\/strong>&nbsp;&gt;63 mVrms (0.1 % THD)&nbsp;<\/td><\/tr><tr><td><strong>Optical Input, Speaker Out&nbsp;<\/strong><\/td><td><strong>THD (20 Hz \u2013 20 kHz)<\/strong> &lt;0.05 % at 70 W out 8 ohms,&nbsp; &lt;0.05 % at 120 W out 4 ohms&nbsp;<br \/><br \/><strong>Signal-to-Noise Ratio<\/strong> &gt;90 dB (-13 dBFS in, A-weighted 1 W out)&nbsp;<br \/><br \/><strong>Input sensitivity (70 W, 8 ohms) <\/strong>-12 dBFS&nbsp;<br \/><br \/><strong>Sample rate <\/strong>44.1 kHz \u2013 192 kHz&nbsp;<br \/><br \/><strong>Channel separation<\/strong> &gt;75 dB (1 kHz), &gt;70 dB (10 kHz)&nbsp;<br \/><br \/><strong>Frequency response<\/strong> 20 Hz &#8211; 20 kHz (\u00b10.3 dB)&nbsp;<\/td><\/tr><tr><td><strong>BluOS Section Specifications<\/strong><\/td><td><strong>BluOS Section Specifications<\/strong><\/td><\/tr><tr><td><strong>Audio&nbsp;<\/strong><\/td><td><strong>Supported audio file formats <\/strong>&nbsp;&#8211; MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS&nbsp;<br \/><br \/><strong>Supported high- resolution audio file formats &#8211; <\/strong>FLAC, MQA, WAV, AIFF<br \/><br \/><strong>Sampling Rate<\/strong> Up to 192 kHz&nbsp;<br \/><strong>Bit depth<\/strong> 16 \u2013 24&nbsp;<\/td><\/tr><tr><td><strong>Connectivity<\/strong><\/td><td><strong>Network connectivity<\/strong> Gigabit Ethernet RJ45 Wi-Fi 5&nbsp;<br \/><br \/><br \/><strong>Bluetooth Connectivity<\/strong>: Receive mode &#8211; ver 5.0 with aptX HD&nbsp;<\/td><\/tr><tr><td><strong>User Interface<\/strong><\/td><td>Microsoft Windows 10 or higher and macOS 10.3 or higher&nbsp;<br \/><br \/>Free BluOS Controller App available for download from the respective App stores of iOS devices, Android devices, Windows or macOS desktops&nbsp;<\/td><\/tr><tr><td><strong>Supported Streaming Services<\/strong><\/td><td>Amazon Music, Bugs, Custom Channels, Deezer, IDAGIO, KKBOX, Napster, Neil Young Archives, nugs.net, Pando ra, Presto Music, Qobuz, QPlay, Qsic, SOUNDMACHINE, Spotify, TIDAL, Tunify&nbsp;<br \/><br \/><strong>Free internet Radio<\/strong>&nbsp; &#8211; Radio, Calm Radio, iHeartRadio, LiveOne, Radio Para dise, SiriusXM, TuneIn, Double Star (Subject to change without notice).&nbsp;<br \/><\/td><\/tr><tr><td><strong>Integration Partners&nbsp;<\/strong><\/td><td>Control4, Crestron, ELAN, Lutron, Push, Roon, RTI, URC, Double Star (Subject to chance without notice).&nbsp;<\/td><\/tr><tr><td><strong>Voice Control Integration&nbsp;<\/strong><\/td><td>Skills and support for Amazon Alexa and Apple\u2019s Siri with corresponding enabled devices and App, Double Star (Subject to chance without notice).&nbsp;<\/td><\/tr><tr><td><strong>Dimensions (WHD)<\/strong><\/td><td>435 x 100 x 400 mm&nbsp;(17.25 x 4 x 15.25 inches)&nbsp;<\/td><\/tr><tr><td><strong>Weight<\/strong><\/td><td>8.9 kg (19.6 lbs)&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\"  itemprop=\"image\" src=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-closeup.jpg\" alt=\"nad-c-359s-integrated-amplifier-closeup\" class=\"wp-image-335922\" srcset=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-closeup.jpg 900w, https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-closeup-768x576.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"834\"  itemprop=\"image\" src=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-angle-credenza.jpg\" alt=\"nad-c-359s-integrated-amplifier-angle-credenza\" class=\"wp-image-335921\" srcset=\"https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-angle-credenza.jpg 900w, https:\/\/www.ecoustics.com\/wp-content\/uploads\/nad-c-359s-integrated-amplifier-angle-credenza-768x712.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-bottom-line\">The Bottom Line<\/h2>\n\n\n\n<p>The NAD C 359S represents a thoughtful evolution of the company&#8217;s traditional integrated amplifier, combining familiar Class AB amplification with a modern switching power supply derived from its Masters Series technology. What makes it particularly interesting isn&#8217;t its 70 watts per channel, but how NAD has integrated BluOS streaming, HDMI eARC, and practical subwoofer management without abandoning the straightforward operation that made its earlier amplifiers so appealing. <\/p>\n\n\n\n<p>It&#8217;s a sensible combination of established engineering and contemporary functionality, without turning a stereo amplifier into another complicated piece of connected hardware.<\/p>\n\n\n\n<p>For owners of older NAD amplifiers such as the C 316BEE V2, C 326BEE, or C 356BEE, the C 359S offers a compelling upgrade path, particularly for listeners who still enjoy CDs and vinyl but want high-resolution streaming and better integration with their television. The optional high-pass filter also makes it especially attractive for smaller loudspeakers paired with a subwoofer, where proper bass management can make a meaningful difference. <\/p>\n\n\n\n<p>Whether its revised amplifier architecture delivers an audible improvement over those earlier models remains to be established through listening, but NAD has made a convincing case for keeping the traditional integrated amplifier relevant in 2026. Not everyone wants to replace a perfectly good stereo system with a collection of wireless speakers and another subscription.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pricing &amp; Availability&nbsp;<\/h2>\n\n\n\n<p>The NAD C 359S Integrated Amplifier is available from<a href=\"https:\/\/nadelectronics.com\/pages\/dealer-locator\"> Authorized NAD dealers <\/a>at $1299 USD in the U.S. and $1599 CAD in Canada.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-related-reading\">Related Reading:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.ecoustics.com\/products\/nad-c-3030\/\">From 1970s Icon to Modern Classic: NAD Launches C 3030 and C 3030S Integrated Amplifiers<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ecoustics.com\/products\/wiim-vibelink-amp-replaced-by-review\/\">WiiM\u2019s Vibelink Integrated Amplifier Ditches Streaming But Will Play Well in the Hi-Res Sandbox<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ecoustics.com\/products\/marantz-model-60n\/\">Marantz\u2019s Model 60n Network Integrated Amplifier Looks and Feels Like Its More Expensive Sibling For Less Money<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ecoustics.com\/articles\/best-integrated-amplifiers\/\">Best Integrated Amplifiers: Editors\u2019 Choice 2025<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>NAD&#8217;s $1,299 C 359S combines 70W Class AB amplification, BluOS and HDMI eARC with power supply technology from its Masters Series. Who said Class A\/B was dead?<\/p>\n","protected":false},"author":110,"featured_media":335919,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"","apple_news_api_id":"","apple_news_api_modified_at":"","apple_news_api_revision":"","apple_news_api_share_url":"","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[83,22],"tags":[37547,5496,35355,14452,31842,35530,36563,35354,35469,4387,37545,37544,37549,10947,7646,4474,37548,35565,37546],"class_list":{"0":"post-335859","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-integrated-amp","8":"category-products","9":"tag-aptx-hd-3","10":"tag-bluos","11":"tag-class-ab-amplifiers","12":"tag-featured","13":"tag-hdmi-earc-4","14":"tag-hi-fi-2","15":"tag-high-resolution-audio-3","16":"tag-integrated-amplifiers-4","17":"tag-music-streaming-2","18":"tag-nad","19":"tag-nad-c-359s","20":"tag-nad-c-359s-integrated-amplifier","21":"tag-nad-c-379","22":"tag-nad-c-389","23":"tag-nad-classic-series","24":"tag-nad-electronics","25":"tag-nad-masters-series","26":"tag-stereo-amplifiers-3","27":"tag-subwoofer-bass-management"},"apple_news_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.4 (Yoast SEO v24.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NAD C 359S Integrated Amplifier Bucks the Class D Trend With Class A\/B Power and BluOS for $1,299 - ecoustics.com<\/title>\n<meta name=\"description\" content=\"NAD&#039;s $1,299 C 359S combines 70W Class AB amplification, BluOS and HDMI eARC with power supply technology from its Masters Series. 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