{"product_id":"rogue-audio-stereo-100-power-amplifier","title":"Rogue Audio Stereo 100 Power Amplifier","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;\"\u003eNinety Watts You Can Voice Yourself\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThe Stereo 100 is the amplifier Rogue built to be kept. Ninety watts per channel of pure tube power, four matched KT88 output tubes in push-pull, and a fully regulated high-voltage supply behind them.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eA switch on the rear changes its character. Ultralinear gives you slam and grip. Pure triode gives you the smoothness tubes are bought for. Most owners settle on one in the end. But you make that choice after the amp is in your room, not before you buy it.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eYou also pick the output tap, 4 ohm or 8. Matching the transformer to your speakers is the difference between a tube amp that drives them and one that merely connects to them.\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\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThe supply is the part you never see. It is a massive fully regulated high-voltage design, and it keeps the bass from collapsing when the music turns demanding. That collapse is the usual failure of tube amps this size.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eA bias meter is built in, so checking and setting tube bias is a two-minute job you do at home instead of a trip to a dealer. The tube cage is integral, and the transformers are mechanically isolated from the chassis.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eBandwidth runs 5Hz to 50kHz within 1dB. Input impedance is 200k ohms and sensitivity 1.0V RMS, with THD under 0.1% typical. Inside are Mundorf EVO Oil coupling caps and custom-wound output transformers on a heavy copper board. It is 18 inches wide, 17 deep, 7 high, and weighs 60 pounds.\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;\"\u003eHerb Reichert reviewed the Stereo 100 for Stereophile. He reached for a comparison most amplifiers do not earn: its \"tank-like build quality, vividly neutral dynamic sound, and timeless styling make it a worthy successor to McIntosh's most adored classic\", the MC30.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eHis verdict was unreserved. \"In my view, the Stereo 100 is everything—sonically, mechanically, aesthetically—that we could hope for in a 21st-century tube amp.\" Everything about it, he added, \"screams ‘End-game tube amp, long-term keeper!'\"\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eWho Is This 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\u003eYou want to choose your own sound\u003c\/strong\u003e — the rear switch moves between ultralinear and pure triode, so you set the amp's character to suit your speakers and your ears, rather than living with someone else's choice.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYour speakers are a specific load\u003c\/strong\u003e — selectable 4 and 8 ohm taps let you match the transformer properly, which is what keeps a tube amp in control instead of merely loud.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou do not want a service bill every year\u003c\/strong\u003e — the built-in bias meter makes setting tube bias a two-minute job at home, so the upkeep a tube amp needs never means shipping it anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou are buying for the long term\u003c\/strong\u003e — a fully regulated supply, isolated transformers and a heavy copper board are the parts that decide whether an amp still works in fifteen years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou want one box for power and another for control\u003c\/strong\u003e — \u003ca href=\"https:\/\/www.audioadvisor.com\/products\/rogue-audio-rp-5-v2-preamplifier\" style=\"color:#8a5a2b;\"\u003eRP-5 v2\u003c\/a\u003e is the partner, or any streamer\/DAC preamp you prefer\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;\"\u003eConnect your preamplifier to the gold-plated RCA inputs. Speakers go to the gold-plated binding posts, on the 4 or 8 ohm taps depending on what your speakers present.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eChoose triode or ultralinear on the rear switch, then let the slow-start sequence bring the tubes up. Check bias on the built-in meter occasionally and the amplifier will look after itself between times.\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;\"\u003eHere are some great companions:\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\u003ePreamplifier:\u003c\/strong\u003e Required, and the natural next decision — see our \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/preamplifiers\" style=\"color:#8a5a2b;\"\u003ePreamplifiers\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker Cables:\u003c\/strong\u003e Match the output taps to your speakers — see our \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/speaker-cables\" style=\"color:#8a5a2b;\"\u003eSpeaker Cables\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterconnects:\u003c\/strong\u003e Quality RCA cables feed the amplifier — see our \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/interconnect-cables\" style=\"color:#8a5a2b;\"\u003eInterconnect Cables\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Rack:\u003c\/strong\u003e A tube amplifier wants air around it — see our \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/audio-racks\" style=\"color:#8a5a2b;\"\u003eAudio Racks\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 it make?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eNinety watts per channel minimum, from four matched KT88 output tubes in push-pull.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhat is the difference between triode and ultralinear?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eUltralinear gives you more power and more grip. Pure triode gives you the smoothness tube amps are bought for. A switch on the back picks between them.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhich output tubes does it use?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eFour matched KT88 output tubes in push-pull, plus two 12AU7 and two 12AX7 in the small-signal stages. Rogue moved the whole range to KT88 in summer 2022; earlier units shipped with KT120 and were rated at 100 watts per channel. You can still order KT120s as an upgrade.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eIs setting the bias difficult?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eIt is straightforward, and you will not need a dealer. A bias meter is built into the amplifier, so checking and adjusting takes a couple of minutes.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eDoes it have balanced inputs?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eInputs are heavy-duty gold-plated RCA. Input impedance is 200k ohms and sensitivity is 1.0V RMS.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhere is it built, and what warranty does it carry?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eRogue hand-builds it in Brodheadsville, Pennsylvania, with a 3-year limited warranty and 6 months on tubes.\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\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThe Stereo 100 reviewed with Rogue's 99 Super Magnum preamplifier:\u003c\/p\u003e\n\u003ciframe width=\"100%\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/_ACzGXYpxsA\" title=\"Rogue Audio 99 Super Magnum \/ Stereo 100 Review\" style=\"border: 0; margin: 0 0 0.9em 0; display: block;\"\u003e\u003c\/iframe\u003e\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 tube amplifiers, triode and ultralinear operation, or building a separates system? 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":45981929537709,"sku":"NEW-RASTE100-BLK","price":3995.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ New","offer_id":45982173069485,"sku":"NEW-RASTE100-SIL","price":3995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3708\/1773\/files\/RASTE100_SIL_01-Large__41264.1730397647.1280.1280_ad61b09e-9f99-4944-85b2-b35b4162baf1.jpg?v=1778126451","url":"https:\/\/www.audioadvisor.com\/products\/rogue-audio-stereo-100-power-amplifier","provider":"Audio Advisor","version":"1.0","type":"link"}