Integrated Amplifiers

{"id":15065708036473,"title":"Trilogy 921 Integrated Amplifier","handle":"trilogy-921-integrated-amplifier","description":"\u003cp class=\"\"\u003eA tough design challenge was to give our “entry level” solid state amplifier the fluidity and sheer musical involvement that typically only valve amplifiers enjoy. But in the Trilogy fashion of going against the flow...\u003c\/p\u003e\n\u003cp class=\"\"\u003eRather than design the 921 as a pre amplifier and a separate power amplifier in one chassis, we chose a single, ultra linear gain stage that does all the voltage gain necessary. This is then directly connected to a compound output stage reminiscent of our larger power amplifiers, enjoying the same Japanese bipolar devices.\u003c\/p\u003e\n\u003cp class=\"\"\u003eThis topology has extremely high bandwidth, low distortion and very good loudspeaker control with only a tiny amount of overall shunt feedback.\u003c\/p\u003e\n\u003cp class=\"\"\u003eThe rectification and smoothing capacitor bank are on each left and right amplifier module and a separate winding on the mains transformer feeds these independently.\u003c\/p\u003e\n\u003cp class=\"\"\u003eTo make signal and current paths short and to minimise interactions between them, a stacked approach is used to enable the voltage gain cell to sit above the main pcb where the output stage and power supply exist.\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cp class=\"\"\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 211.622%;\" height=\"393\" cellspacing=\"2\" cellpadding=\"1\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"#333333\" align=\"center\"\u003e\n\u003ctd style=\"width: 198.88%;\" colspan=\"3\"\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #ffffff;\"\u003eSpecifications\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Size\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 465*312*106 (W*D*H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Size including connectors etc\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 465*350*106 (W*D*H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Weight\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 11 Kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Standby Power Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 1 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Maximum Power Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 300 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Input\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 5 pairs RCA phono sockets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Input Impedance\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 50K Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Input sensitivity\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 500mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Rated Power\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 75 Watts per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Recommended Load Impedance\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 3-16 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Frequency Response\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 5-100KHz +\/- 0.5dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Distortion\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e Less than 1% A weighted at rated output into 8 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Phase\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e Inverting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","published_at":"2025-07-26T10:49:02+01:00","created_at":"2025-07-25T14:36:37+01:00","vendor":"Trilogy","type":"Amplifiers","tags":["Integrated Amplifiers","Trilogy"],"price":620000,"price_min":620000,"price_max":650000,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":55526075892089,"title":"Natural","option1":"Natural","option2":null,"option3":null,"sku":null,"requires_shipping":false,"taxable":true,"featured_image":{"id":75560590803321,"product_id":15065708036473,"position":1,"created_at":"2025-07-25T14:34:16+01:00","updated_at":"2025-07-25T14:34:20+01:00","alt":null,"width":2500,"height":1669,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-26_N.jpg?v=1753450460","variant_ids":[55526075892089]},"available":true,"name":"Trilogy 921 Integrated Amplifier - Natural","public_title":"Natural","options":["Natural"],"price":620000,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","featured_media":{"alt":null,"id":65379439411577,"position":1,"preview_image":{"aspect_ratio":1.498,"height":1669,"width":2500,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-26_N.jpg?v=1753450460"}},"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":55526075924857,"title":"Smooth Black","option1":"Smooth Black","option2":null,"option3":null,"sku":null,"requires_shipping":false,"taxable":true,"featured_image":{"id":75560590672249,"product_id":15065708036473,"position":3,"created_at":"2025-07-25T14:34:16+01:00","updated_at":"2025-07-25T14:36:46+01:00","alt":null,"width":2500,"height":1663,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Black_Iso_-_Trilogy_Audio_June_2025-113-HR.jpg?v=1753450606","variant_ids":[55526075924857]},"available":true,"name":"Trilogy 921 Integrated Amplifier - Smooth Black","public_title":"Smooth Black","options":["Smooth Black"],"price":650000,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","featured_media":{"alt":null,"id":65379439280505,"position":3,"preview_image":{"aspect_ratio":1.503,"height":1663,"width":2500,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Black_Iso_-_Trilogy_Audio_June_2025-113-HR.jpg?v=1753450606"}},"requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-26_N.jpg?v=1753450460","\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-1_N.jpg?v=1753450606","\/\/james-morrow.com\/cdn\/shop\/files\/921_Black_Iso_-_Trilogy_Audio_June_2025-113-HR.jpg?v=1753450606","\/\/james-morrow.com\/cdn\/shop\/files\/921_Back_Black_-_Trilogy_Audio_June_2025-117-HR.jpg?v=1753450606","\/\/james-morrow.com\/cdn\/shop\/files\/921_Front_Black_Trilogy_Audio_June_2025-087-HR.jpg?v=1753450606","\/\/james-morrow.com\/cdn\/shop\/files\/921_Front_Detail_Black_-_Trilogy_Audio_June_2025-096-HR.jpg?v=1753450606"],"featured_image":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-26_N.jpg?v=1753450460","options":["Colour"],"media":[{"alt":null,"id":65379439411577,"position":1,"preview_image":{"aspect_ratio":1.498,"height":1669,"width":2500,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-26_N.jpg?v=1753450460"},"aspect_ratio":1.498,"height":1669,"media_type":"image","src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-26_N.jpg?v=1753450460","width":2500},{"alt":null,"id":65379439378809,"position":2,"preview_image":{"aspect_ratio":1.498,"height":1669,"width":2500,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-1_N.jpg?v=1753450606"},"aspect_ratio":1.498,"height":1669,"media_type":"image","src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Trilogy_Audio_April_2023-1_N.jpg?v=1753450606","width":2500},{"alt":null,"id":65379439280505,"position":3,"preview_image":{"aspect_ratio":1.503,"height":1663,"width":2500,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Black_Iso_-_Trilogy_Audio_June_2025-113-HR.jpg?v=1753450606"},"aspect_ratio":1.503,"height":1663,"media_type":"image","src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Black_Iso_-_Trilogy_Audio_June_2025-113-HR.jpg?v=1753450606","width":2500},{"alt":null,"id":65379439247737,"position":4,"preview_image":{"aspect_ratio":2.53,"height":988,"width":2500,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Back_Black_-_Trilogy_Audio_June_2025-117-HR.jpg?v=1753450606"},"aspect_ratio":2.53,"height":988,"media_type":"image","src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Back_Black_-_Trilogy_Audio_June_2025-117-HR.jpg?v=1753450606","width":2500},{"alt":null,"id":65379439313273,"position":5,"preview_image":{"aspect_ratio":1.503,"height":1663,"width":2500,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Front_Black_Trilogy_Audio_June_2025-087-HR.jpg?v=1753450606"},"aspect_ratio":1.503,"height":1663,"media_type":"image","src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Front_Black_Trilogy_Audio_June_2025-087-HR.jpg?v=1753450606","width":2500},{"alt":null,"id":65379439346041,"position":6,"preview_image":{"aspect_ratio":1.503,"height":1663,"width":2500,"src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Front_Detail_Black_-_Trilogy_Audio_June_2025-096-HR.jpg?v=1753450606"},"aspect_ratio":1.503,"height":1663,"media_type":"image","src":"\/\/james-morrow.com\/cdn\/shop\/files\/921_Front_Detail_Black_-_Trilogy_Audio_June_2025-096-HR.jpg?v=1753450606","width":2500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp class=\"\"\u003eA tough design challenge was to give our “entry level” solid state amplifier the fluidity and sheer musical involvement that typically only valve amplifiers enjoy. But in the Trilogy fashion of going against the flow...\u003c\/p\u003e\n\u003cp class=\"\"\u003eRather than design the 921 as a pre amplifier and a separate power amplifier in one chassis, we chose a single, ultra linear gain stage that does all the voltage gain necessary. This is then directly connected to a compound output stage reminiscent of our larger power amplifiers, enjoying the same Japanese bipolar devices.\u003c\/p\u003e\n\u003cp class=\"\"\u003eThis topology has extremely high bandwidth, low distortion and very good loudspeaker control with only a tiny amount of overall shunt feedback.\u003c\/p\u003e\n\u003cp class=\"\"\u003eThe rectification and smoothing capacitor bank are on each left and right amplifier module and a separate winding on the mains transformer feeds these independently.\u003c\/p\u003e\n\u003cp class=\"\"\u003eTo make signal and current paths short and to minimise interactions between them, a stacked approach is used to enable the voltage gain cell to sit above the main pcb where the output stage and power supply exist.\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cp class=\"\"\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 211.622%;\" height=\"393\" cellspacing=\"2\" cellpadding=\"1\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"#333333\" align=\"center\"\u003e\n\u003ctd style=\"width: 198.88%;\" colspan=\"3\"\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #ffffff;\"\u003eSpecifications\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Size\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 465*312*106 (W*D*H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Size including connectors etc\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 465*350*106 (W*D*H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Weight\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 11 Kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Standby Power Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 1 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Maximum Power Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 300 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Input\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 5 pairs RCA phono sockets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Input Impedance\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 50K Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Input sensitivity\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 500mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Rated Power\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 75 Watts per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Recommended Load Impedance\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 3-16 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Frequency Response\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e 5-100KHz +\/- 0.5dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Distortion\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e Less than 1% A weighted at rated output into 8 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 37.6591%;\"\u003e Phase\u003c\/td\u003e\n\u003ctd style=\"width: 62.0599%;\"\u003e Inverting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e"}