{"product_id":"rogue-audio-m-180-monoblock-amplifiers","title":"Rogue Audio M-180 Monoblock Amplifiers","description":"\u003cdiv style=\"max-width:720px;margin:0 auto;padding:32px 24px 48px 24px;background:#ffffff;\"\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:0 0 0.35em 0;font-weight:600;\"\u003eOne Hundred and Eighty Watts of Tube Power\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThe M-180 is a valve monoblock, and this listing is a pair, so you have both channels. Each chassis makes 180 watts, which is a great deal of power from output tubes and enough to drive speakers most valve amplifiers cannot.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eRogue derived the circuit from its Apollo amplifiers. Four KT88 output tubes work in each chassis, alongside a 12AU7 pair and a 12AX7, and an external switch moves the amplifier between ultralinear and pure triode operation.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThat switch is the feature owners use most. Ultralinear gives you the full power and the firmer grip; triode trades some of the watts for a more relaxed, harmonically richer presentation. You can change your mind whenever the music does.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThis listing is the standard M-180 in black, supplied as a matched pair of monoblocks. The Dark version, which adds a factory upgrade to the power supply and signal path, is listed separately.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eInside the Chassis\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eBiasing Without the Guesswork\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eA bias meter is built into each amplifier, so setting the output tubes is a matter of reading a needle rather than owning a multimeter. On a valve amplifier you will use for years, that turns a chore into a two-minute job.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eOutput Taps and Transformers\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eSeparate 4-ohm and 8-ohm taps are provided on the back, so you match the amplifier to your speaker rather than hoping. The output transformers are ultra-wide bandwidth types and the transformers are mechanically isolated from the chassis.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eOn the Bench\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eFrequency response runs 5Hz to 50kHz within 1dB and distortion sits below 0.1% in typical use. Input sensitivity is 1.0V RMS into a 200k-ohm impedance, which is an unusually easy load for any preamp to drive, valve or solid state alike.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eWhat Reviewers Are Saying\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eErick Lichte, in \u003cem\u003eStereophile\u003c\/em\u003e on January 27, 2010, wrote that \"The Rogue M-180 deserves to be at the top of every audiophile's list of amps that deliver high performance in almost every aspect of playback—something I'd say even if they cost $10,000\/pair.\"\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eHe also found the amplifiers \"gave me almost all that I expect from and desire in a power amplifier, and at a price I could conceivably afford,\" noting \"higher resolution, better bass, and a more defined stereo image\" over the M-150 they replaced.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eWho Is This Mono Amplifier Best For?\u003c\/h2\u003e\n\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eListeners who want tube sound with real power\u003c\/strong\u003e — 180 watts per chassis is well beyond what most valve amplifiers manage, so you can have the tube presentation and still drive a speaker that needs current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnyone who likes to tune the sound\u003c\/strong\u003e — The ultralinear and triode switch lets you change the amplifier's character from the listening seat, so one pair covers two quite different moods without buying anything else.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOwners of speakers with an awkward impedance\u003c\/strong\u003e — Separate 4-ohm and 8-ohm taps let you match the transformer to the load properly, which matters far more on a valve amplifier than a solid-state one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeople buying a complete pair\u003c\/strong\u003e — This listing is two amplifiers, so a single order gives you a full stereo system with nothing left to add later.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve amps need biasing and eventual retubing\u003c\/strong\u003e — The built-in meter makes biasing quick, but it is still a job you will do occasionally, and the KT88s will want replacing in time. Rogue covers the amplifier for three years and the tubes for six months. Our \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/preamplifiers\" style=\"color:#8a5a2b;\"\u003ePreamplifiers\u003c\/a\u003e pair naturally with these if you still need a source of level control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eHow Does It Connect to Your System?\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eFeed each amplifier one channel from your preamp on balanced XLR or single-ended RCA, then run speaker cable from the correct impedance tap to the speaker beside it. Use the 4-ohm tap for a 4-ohm speaker and the 8-ohm tap for an 8-ohm one.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eSet the ultralinear or triode switch to taste before you settle in, and let the slow-start circuit bring the valves up gently at switch-on. As with any power amplifier, the volume control lives in your preamp rather than on the amplifier itself.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003ePairs Well With\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eA valve monoblock pair needs the right company. Here is what most owners add.\u003c\/p\u003e\n\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreamplifiers — \u003c\/strong\u003e valve or solid state, the 200k input impedance suits both. \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/preamplifiers\" style=\"color:#8a5a2b;\"\u003eBrowse preamplifiers\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced interconnects — \u003c\/strong\u003e two runs, one to each amplifier. \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/interconnect-cables\" style=\"color:#8a5a2b;\"\u003eBrowse interconnect cables\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker cables — \u003c\/strong\u003e short runs from each amp to its speaker. \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/speaker-cables\" style=\"color:#8a5a2b;\"\u003eBrowse speaker cables\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloorstanding speakers — \u003c\/strong\u003e 180 tube watts a side suits full-range designs. \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/floorstanding-speakers\" style=\"color:#8a5a2b;\"\u003eBrowse floorstanding speakers\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eHow much power does one make?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eEach M-180 produces 180 watts. That is per chassis, and this listing is a pair, so each of your two speakers gets its own 180-watt valve amplifier.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhich tubes does it use?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eFour KT88 output tubes per chassis, plus two 12AU7s and one 12AX7. Rogue supplies them as matched sets, so a pair of M-180s carries eight KT88s between the two amplifiers. KT120s are available as an optional upgrade from the standard KT88s.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhat does the triode switch do?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eIt changes the output stage between ultralinear and pure triode operation. Ultralinear gives the full rated power and tighter control; triode gives up some power for a warmer, more harmonically rich sound. The switch is on the outside, so you can try both.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eIs biasing difficult?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eEach amplifier has an integral bias meter, so you read the value straight off the front and adjust. It takes a couple of minutes and needs no test equipment of your own.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eHow big and heavy is each one?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eEach chassis measures 14.5 inches wide by 7 high by 19 deep and weighs 55 pounds, so a pair comes to 110 pounds. A welded-wire tube cage covers the valves.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhat warranty does it carry?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eRogue covers the amplifier for three years and the vacuum tubes for six months, to the original owner from an authorised dealer, in the United States. Every M-180 is designed and built in Pennsylvania and is tested, burned in and auditioned before it ships.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eSee It in Action\u003c\/h2\u003e\n\n\u003ciframe width=\"100%\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/pdCoMfW6q6U\" title=\"Modwright LS 36.5 + 36.5 pre-amp, Rogue M180 mono blocs, Spendor Classic 100, Garrard 401,EMT TSD15\" style=\"border:0;margin:0 0 0.9em 0;display:block;\" allowfullscreen\u003e\u003c\/iframe\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eWhy Audio Advisor?\u003c\/h2\u003e\n\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e40+ Years of Expertise — Since 1981, we've helped over a million music lovers find the right gear.\u003c\/li\u003e\n\u003cli\u003e60-Day Money-Back Guarantee — Take your time. Listen, enjoy, and make sure it's right for you.\u003c\/li\u003e\n\u003cli\u003eReal Experts, Real Help — Our team is here to answer your questions at 800-942-0220, weekdays 9am–6pm EST.\u003c\/li\u003e\n\u003cli\u003eFree Shipping — On orders over $49, delivered to your door.\u003c\/li\u003e\n\u003cli\u003eFlexible Payment Options — Financing available so you can start listening now.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eLearn More\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eWant to learn more about valve monoblocks, triode and ultralinear operation, or matching an amp to your speakers? Visit our \u003ca href=\"https:\/\/learningcenter.audioadvisor.com\/\" style=\"color:#8a5a2b;\"\u003eLearning Center\u003c\/a\u003e for guides, tips, and expert advice.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Rogue Audio","offers":[{"title":"Black \/ New","offer_id":45983046893741,"sku":"NEW-RAM180-BLK-PR","price":7995.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ New","offer_id":45982088265901,"sku":"NEW-RAM180-SIL-PR","price":6995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3708\/1773\/files\/rogue-audio-stereo-100-black-enhanced.jpg?v=1785628165","url":"https:\/\/www.audioadvisor.com\/products\/rogue-audio-m-180-monoblock-amplifiers","provider":"Audio Advisor","version":"1.0","type":"link"}