{"product_id":"mcintosh-mc257","title":"MC257 7-Channel Power Amplifier","description":"\u003cdiv class=\"mc-editorial\"\u003e\n\u003csection id=\"overview\" class=\"mc-section\"\u003e\u003cp\u003eBring your home theater dreams to life with the MC257 7-Channel Power Amplifier. Experience the latest blockbusters along with your favorite movies like never before in your home theater with the sound quality and power only McIntosh can deliver.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection id=\"section-1\" class=\"mc-section\"\u003e\u003cp\u003eThe MC257 is highlighted by our new eye-catching TripleView™ Power Output Meter that independently indicates the real time power reading of the amplifier’s three front channels. The easy-to-read, 15” (38 cm) wide TripleView meter design is a streamlined approach to the three individual meters found on our previous generation 7-channel home theater amplifier. Instead of three separate meter windows each housing a single meter, the TripleView features three of our traditional mechanical meters in a single meter enclosure.\u003c\/p\u003e\u003c\/section\u003e\n\u003cfigure class=\"mc-img-block\"\u003e\u003cimg src=\"https:\/\/www.mcintoshlabs.com\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc257\/mc257-angle-close-up.jpg?rev=81bc631af33444afa1a1fa5200b19b6e\u0026amp;revision=81bc631a-f334-44af-a1a1-fa5200b19b6e\" alt=\"McIntosh MC257 Amplifier\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003csection id=\"section-2\" class=\"mc-section\"\u003e\u003cp\u003eWhile a totally new design, each of the three pointers in the TripleView meter have the same inviting motion that McIntosh meters are known for and perform at the same high level as any of our meters. The captivating look and glow of the TripleView meter is sure to be a conversation starter, but its trademarked blue lighting can be turned off so as not to compete with your TV or movie screen.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection id=\"section-3\" class=\"mc-section\"\u003e\u003cp\u003eThe combo of the McIntoshMX170A\/V Processor and MC257 7-Channel Amplifier \"checked all the performance-related boxes when it came to signal integrity and immersion. Also, clarity and dynamics were off the charts... It had an amazing surround bubble that put me in the center of the action. This soundscape featured pinpoint imaging of all the discrete effects. The overall clarity, dynamic punch, and low distortion of the sound were above reproach.\" – SECRETS of Home Theater and High Fidelity\u003c\/p\u003e\u003c\/section\u003e\n\u003csection id=\"section-4\" class=\"mc-section\"\u003e\u003cp\u003eIn addition to the new TripleView meter, the MC257 features many other upgrades. When using just the front left, center and right channels, power output has been increased by 25% from 200 Watts per channel to 250 Watts per channel. When using all 7 channels, each will receive a healthy 200 Watts per channel. Regardless of how many channels are used, the full 200 or 250 Watts is delivered to either 4 or 8 Ohm speakers via our Dynamic Power Manager® (DPM) technology. Filter capacity has been increased by 20% which has produced an amazing 94% increase in dynamic headroom from 1.7dB to 3.3dB as well as improving low frequency performance – both key features in a home theater amplifier, especially when listening to an energetic soundtrack.\u003c\/p\u003e\u003c\/section\u003e\n\u003cfigure class=\"mc-video-block\"\u003e\u003cvideo autoplay loop muted playsinline poster=\"https:\/\/www.mcintoshlabs.com\/-\/media\/videos\/mcintoshlabs\/short---monogrammed-heatsinks02-thumbnail.jpg?rev=23b4b882b1314a3caf9ddace1bd7539b\u0026amp;revision=23b4b882-b131-4a3c-af9d-dace1bd7539b\"\u003e\u003csource src=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Videos\/McIntoshLabs\/Short---Monogrammed-Heatsinks02-1280.mp4?rev=853ee0f43d924b8089b499b6ae6370e4\u0026amp;revision=853ee0f4-3d92-4b80-89b4-99b6ae6370e4\" type=\"video\/mp4\"\u003e\u003c\/video\u003e\u003c\/figure\u003e\n\u003csection id=\"section-5\" class=\"mc-section\"\u003e\u003cp\u003eThe MC257 comes with five of our McIntosh Monogrammed Heatsinks™ which are connected to advanced high current output transistors to efficiently and silently cool the amplifier; as a result, noisy cooling fans that can interfere with the movie soundtrack are not needed. A quiet, specially wound toroidal isolation power transformer also helps keep noise to a minimum. Speaker terminals have been updated to our standard gold-plated binding posts that prevent corrosion and ensure a quality signal is sent to your home theater speakers. Our power management system that will turn the amplifier off after a set amount of time when no input signal has been detected has also been added. Finally, the front panel is now lit by direct LED backlighting for improved color accuracy and durability.\u003c\/p\u003e\u003c\/section\u003e\n\u003csection id=\"section-6\" class=\"mc-section\"\u003e\u003cp\u003eBesides all these upgrades, the MC257 comes with steadfast McIntosh technologies like Power Guard® to prevent potential speaker damage caused by clipping and over-driving of the amplifier. Our Sentry Monitor™ technology protects against short-circuits by disengaging the output stage should the current ever exceed safe operating levels (it then resets automatically when operating conditions return to normal). Both balanced and unbalanced inputs are included to connect the MC257 home theater amplifier to your home theater processor.\u003c\/p\u003e\u003c\/section\u003e\n\u003cfigure class=\"mc-video-block\"\u003e\u003cvideo autoplay loop muted playsinline poster=\"https:\/\/www.mcintoshlabs.com\/-\/media\/videos\/mcintoshlabs\/short---knob-thumbnail.jpg?rev=9808179f3f2942e991ae826915988c07\u0026amp;revision=9808179f-3f29-42e9-91ae-826915988c07\"\u003e\u003csource src=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Videos\/McIntoshLabs\/Short---Knob-1280.mp4?rev=394176b7af6e4fc8b51b30c44bc3c472\u0026amp;revision=394176b7-af6e-4fc8-b51b-30c44bc3c472\" type=\"video\/mp4\"\u003e\u003c\/video\u003e\u003c\/figure\u003e\n\u003csection id=\"section-7\" class=\"mc-section\"\u003e\u003cp\u003eThe MC257 can be utilized in many ways: it can power a 7-channel home theater by itself; it can be paired with either our MI128 or MI254 digital amplifiers in home theaters that have more than 7-channels; or it can be used in 5-channel home theaters with 2 of its channels available to power a second audio zone in your home.\u003c\/p\u003e\u003c\/section\u003e\n\u003cfigure class=\"mc-img-block\"\u003e\u003cimg src=\"https:\/\/www.mcintoshlabs.com\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc257\/mc257-back-background.jpg?rev=04fdff4b23b14acbbb2ba3ef0c2959f4\u0026amp;revision=04fdff4b-23b1-4acb-bb2b-a3ef0c2959f4\" alt=\"McIntosh MC257 Amplifier\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003csection id=\"section-8\" class=\"mc-section\"\u003e\u003cp\u003eThe MC257 sits on a polished stainless steel chassis and bears the classic McIntosh design of a black glass front panel with the TripleView meter, illuminated logo, control knobs, and aluminum end caps. Contact your local dealerto learn more.\u003c\/p\u003e\u003c\/section\u003e\n\u003cdetails id=\"specifications\" class=\"mc-accordion\"\u003e\u003csummary\u003eSpecifications\u003c\/summary\u003e\u003cdiv class=\"mc-spec-body\"\u003e\n\u003cp class=\"mc-spec-heading\"\u003eElectronic Specifications\u003c\/p\u003e\n\u003cdiv class=\"mc-spec-grid\"\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eFTC Power Output Rating\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e250 W\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003ePower Output per Channel\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e3 Front Channels only: 250 W into 4 or 8 ohms\u003c\/p\u003e\n\u003cp class=\"mc-spec-sub\"\u003eAll 7 Channels: 200 W into 4 or 8 ohms\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eNumber of Channels\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e7\u003c\/p\u003e\n\u003cp class=\"mc-spec-sub\"\u003e(can also be used as a 2-zone amplifier with 5 channels in zone A and 2 channels in zone B)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eTotal Harmonic Distortion\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e0.005%\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eS\/N below rated output\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e108dB\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eDynamic Headroom\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e3.3dB\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eDamping Factor\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e\u0026gt;70 @ 4 ohms\u003c\/p\u003e\n\u003cp class=\"mc-spec-sub\"\u003e\u0026gt;140 @ 8 ohms\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eRated Power Band\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e20Hz to 20kHz\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eFrequency Response\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e+0, -0.25dB from 20Hz to 20kHz\u003c\/p\u003e\n\u003cp class=\"mc-spec-sub\"\u003e+0, -3dB from 10Hz to 100kHz\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"mc-spec-heading\"\u003eControl\u003c\/p\u003e\n\u003cdiv class=\"mc-spec-grid\"\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eRemote Power Control\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eYes, 7 or 5 + 2 Channel\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eMulti-Channel DB25 Cable\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eNo\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"mc-spec-heading\"\u003eGeneral Specifications\u003c\/p\u003e\n\u003cdiv class=\"mc-spec-grid\"\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eCircuit Configuration\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003ePush-Pull Complementary\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eCircuit Design\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eSolid State\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eMono Bridge\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eNo\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eMono Parallel\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eNo\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eOutput Type\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eDirect Coupled with Dynamic Power Manager®\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eMeters\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eYes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eMeter Light Switch\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eYes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eBalanced Input\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e7\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eFront Panel\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eGlass\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eIllumination\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eDirect LED\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eChassis Style\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003ePolished stainless steel \u0026amp; black painted steel\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"mc-spec-heading\"\u003eConnectivity\u003c\/p\u003e\n\u003cdiv class=\"mc-spec-grid\"\u003e\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eSpeaker Binding Post Type\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003eStandard\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cp class=\"mc-spec-heading\"\u003eWeights \u0026amp; Dimensions\u003c\/p\u003e\n\u003cdiv class=\"mc-spec-grid\"\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eUnit Dimensions (W x H x D)\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e17-1\/2\" (44.5cm) x 9-7\/16\" (23.9cm) (including feet) x 21\" (53.3cm) (including front panel and cables)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eUnit Weight\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e95 lbs (43 kg)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mc-spec-item\"\u003e\n\u003cp class=\"mc-spec-name\"\u003eShipping Weight\u003c\/p\u003e\n\u003cp class=\"mc-spec-value\"\u003e128 lbs (58 kg)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails id=\"downloads\" class=\"mc-accordion\"\u003e\u003csummary\u003eDownloads\u003c\/summary\u003e\u003cul class=\"mc-downloads\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC257-brochure-35109900.pdf?rev=0daba43774cb4d4c890620df4022ef04\u0026amp;revision=0daba437-74cb-4d4c-8906-20df4022ef04\"\u003eMC257 Power Amplifier Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc257om01.pdf?rev=720c1814e3fd4c3aa62fb22fba82fef5\u0026amp;revision=720c1814-e3fd-4c3a-a62f-b22fba82fef5\"\u003eMC257 Power Amplifier Owner's Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc257cd1-3-01.pdf?rev=34e2e3d7cfb8405182e6233990c80c48\u0026amp;revision=34e2e3d7-cfb8-4051-82e6-233990c80c48\"\u003eMC257 Power Amplifier Connection Diagrams\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.mc-editorial{font-family:inherit;color:inherit;line-height:inherit}\n.mc-section{padding:2.5rem 0;border-top:1px solid rgba(128,128,128,.2)}\n.mc-section:first-child{border-top:none;padding-top:0}\n.mc-section h3{margin:0 0 .75rem;font-size:inherit}\n.mc-section p{margin:0 0 1rem;opacity:.8}\n.mc-section p:last-child{margin-bottom:0}\n.mc-img-block,.mc-video-block{margin:0;padding:0}\n.mc-img-block img,.mc-video-block video{width:100%;height:auto;display:block}\n.mc-video-block video{max-height:600px;object-fit:cover}\n.mc-accordion{border-top:1px solid rgba(128,128,128,.2);margin:0}\n.mc-accordion summary{cursor:pointer;padding:1.25rem 0;list-style:none;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-family:inherit;color:inherit}\n.mc-accordion summary::-webkit-details-marker{display:none}\n.mc-accordion summary::after{content:'+';font-size:1.5rem;font-weight:300;line-height:1}\n.mc-accordion[open] summary::after{content:'−'}\n.mc-spec-body{padding-bottom:1.5rem}\n.mc-spec-heading{font-size:.7em;font-weight:700;text-transform:uppercase;letter-spacing:.08em;opacity:.5;padding:.75rem 0 .25rem;margin:0}\n.mc-spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 2rem;margin:0 0 .5rem}\n.mc-spec-item{padding:.5rem 0;border-bottom:1px solid rgba(128,128,128,.15)}\n.mc-spec-name{margin:0 0 .2rem;font-size:.875em;font-weight:600;opacity:.9}\n.mc-spec-value,.mc-spec-sub{margin:0;font-size:.875em}\n.mc-spec-value{opacity:.8}\n.mc-spec-sub{opacity:.6}\n.mc-downloads{list-style:none;padding:0;margin:0 0 1.5rem}\n.mc-downloads li{padding:.5rem 0;border-bottom:1px solid rgba(128,128,128,.15)}\n.mc-downloads a{color:inherit;text-underline-offset:3px}\n@media(max-width:600px){.mc-spec-grid{grid-template-columns:1fr}}\n\u003c\/style\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":54166344499537,"sku":"MC257","price":13000.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/mc257-front-top_6cebd596-e6d0-46c2-8a1e-ff7a805bde68.jpg?v=1782728452","url":"https:\/\/gridhifi.com\/products\/mcintosh-mc257","provider":"The Grid","version":"1.0","type":"link"}