{"product_id":"signature-s-400-reference-stereo-amplifier","title":"Signature S-400 S2 Reference Stereo Amplifier","description":"\u003ch3\u003eVTL\u003c\/h3\u003e\n\u003ch1\u003eSignature S-400 S2 Reference Stereo Amplifier\u003c\/h1\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: #dc9b46;\"\u003e*This product is built to order. The estimated delivery time is 3 months.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSince its introduction in 2004, VTL’s S-400 Stereo Reference amplifier has been valued by music lovers around the world as a high power, high performance tube amplifier–renowned for its ease of use and refined, natural depiction of music. The new Series II version of the S-400 uses the same circuitry as its bigger brother, the Siegfried Series II Reference monoblock amplifier, in an impressive single chassis design. The inclusion of VTL’s latest engineering advances brings the renowned sonic performance of the S-400 to even greater heights.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFor the Series II, VTL, has completely re-worked the entire signal path. Upgrades include a fully balanced differential input stage driving a differential phase splitter and a lower impedance push-pull output stage with a dramatically improved, fully balanced and enhanced interleaved and coupled output transformer. Equipped with the same “SmartTube” technology as the Siegfried II, the S-400 deploys Auto Bias and Fault Sensing, precision-regulated power supply technology, and bi-directional RS-232 control, giving unparalleled flexibility and ease of use.\u003c\/p\u003e\n\u003cp\u003eThe S-400 Series II gains further sonic benefits with a shorter, faster and fully balanced negative feedback loop, with zero global negative feedback. The negative feedback loop completely eliminates ringing and requires no capacitor compensation to maintain critical phase integrity and information. The result is an amplifier that remains stable even under the most demanding loads.\u003c\/p\u003e\n\u003cp\u003eAdjustable precision-regulated plate, screen and bias supplies hold the output tube operating point constant even under AC and main power supply fluctuations, and stabilizes the critical power supplies yielding tonal stability and sonic integrity, especially during complex, dynamic signal conditions.\u003c\/p\u003e\n\u003cp\u003eAnother new feature is a user adjustable Damping Factor feedback control that allows the user to adjust the amplifier’s output impedance by varying the amount of negative feedback. Impedance can now be precisely set to suit the listener’s taste, and to improve control of the loudspeaker loads to deliver best performance.\u003c\/p\u003e\n\u003cp\u003eThe 3 possible settings are:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLOW – Lowest damping factor, good loudspeaker control, most natural sound.\u003c\/li\u003e\n\u003cli\u003eMED – Better loudspeaker control, with some impact on sound quality\u003c\/li\u003e\n\u003cli\u003eHI – Best loudspeaker control, with a little more impact on sound quality, but on speakers that need the control the sonic improvement is clear\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFinally, the amplifier has been substantially re-voiced with premium Mundorf silver oil capacitors, for a sweeter, more extended top end and mid range tonality that sounds more relaxed, with better flow and integration. Input stage capacitors are also bypassed.\u003c\/p\u003e\n\u003cp\u003eEven a brief listen to the S-400 Series II Stereo Reference amplifier reveals the successful implementation of the new technology. A lower noise floor creates a velvety black sonic background from which more of the nuances of music can emerge. The soundstage is taller and deeper, yielding better defined and more delineated instrumental images. The mid bass has more authority and control while the critical midrange exhibits a new effortlessness, better reflecting the natural colors and timbres of musical instruments.\u003c\/p\u003e\n\u003cp\u003eOverall, the new amplifier has an uncanny ability to sound quick and agile, yet still possessing the ability to scale up effortlessly, with a sense of almost unlimited power. Listening to music through the S-400 II amplifier is an exciting and invigorating experience.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"2\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,1,0,0\"\u003e\u003cb data-path-to-node=\"2,1,0,0\" data-index-in-node=\"0\"\u003eVacuum Tube Complement\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,1,1,0\"\u003e12 x 6550 or KT-88, 2 x 12AT7, 2 x 12BH7\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,2,0,0\"\u003e\u003cb data-path-to-node=\"2,2,0,0\" data-index-in-node=\"0\"\u003eOutput Power\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"2,2,1,0\"\u003e\u003cb data-path-to-node=\"2,2,1,0\" data-index-in-node=\"0\"\u003eTetrode:\u003c\/b\u003e 300W\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,2,1,1\"\u003e\n\u003cp data-path-to-node=\"2,2,1,2\"\u003e\u003cb data-path-to-node=\"2,2,1,2\" data-index-in-node=\"1\"\u003eTriode:\u003c\/b\u003e 150W\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,2,1,3\"\u003e\n\u003cp data-path-to-node=\"2,2,1,4\"\u003e\u003ci data-path-to-node=\"2,2,1,4\" data-index-in-node=\"1\"\u003e(20Hz – 20kHz \u0026lt;3.5% THD into 5Ω)\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,3,0,0\"\u003e\u003cb data-path-to-node=\"2,3,0,0\" data-index-in-node=\"0\"\u003eInput Sensitivity\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,3,1,0\"\u003eVariable between 1.0V – 2.0V, depending upon DF (Damping Factor) setting\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,4,0,0\"\u003e\u003cb data-path-to-node=\"2,4,0,0\" data-index-in-node=\"0\"\u003eInput Impedance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,4,1,0\"\u003e48kΩ\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,5,0,0\"\u003e\u003cb data-path-to-node=\"2,5,0,0\" data-index-in-node=\"0\"\u003eLoad Setting\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,5,1,0\"\u003e5Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,6,0,0\"\u003e\u003cb data-path-to-node=\"2,6,0,0\" data-index-in-node=\"0\"\u003eOptimum Load Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,6,1,0\"\u003e4Ω – 8Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,7,0,0\"\u003e\u003cb data-path-to-node=\"2,7,0,0\" data-index-in-node=\"0\"\u003eS\/N Ratio\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,7,1,0\"\u003e-90dB @ 120Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,8,0,0\"\u003e\u003cb data-path-to-node=\"2,8,0,0\" data-index-in-node=\"0\"\u003ePower Consumption\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"2,8,1,0\"\u003e\u003cb data-path-to-node=\"2,8,1,0\" data-index-in-node=\"0\"\u003eIdle:\u003c\/b\u003e 560W\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,8,1,1\"\u003e\n\u003cp data-path-to-node=\"2,8,1,2\"\u003e\u003cb data-path-to-node=\"2,8,1,2\" data-index-in-node=\"1\"\u003eFull Power:\u003c\/b\u003e 1600W\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,9,0,0\"\u003e\u003cb data-path-to-node=\"2,9,0,0\" data-index-in-node=\"0\"\u003eB+ Fuse Ratings\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"2,9,1,0\"\u003e\u003cb data-path-to-node=\"2,9,1,0\" data-index-in-node=\"0\"\u003e100\/120V:\u003c\/b\u003e 20A Ceramic Slo Blo\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,9,1,1\"\u003e\n\u003cp data-path-to-node=\"2,9,1,2\"\u003e\u003cb data-path-to-node=\"2,9,1,2\" data-index-in-node=\"1\"\u003e220\/240V:\u003c\/b\u003e 10A Ceramic Slo Blo\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,10,0,0\"\u003e\u003cb data-path-to-node=\"2,10,0,0\" data-index-in-node=\"0\"\u003eLogic Fuse Ratings\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"2,10,1,0\"\u003e\u003cb data-path-to-node=\"2,10,1,0\" data-index-in-node=\"0\"\u003e100\/120V:\u003c\/b\u003e 1A Ceramic Slo Blo\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,10,1,1\"\u003e\n\u003cp data-path-to-node=\"2,10,1,2\"\u003e\u003cb data-path-to-node=\"2,10,1,2\" data-index-in-node=\"1\"\u003e220\/240V:\u003c\/b\u003e 1A Ceramic Slo Blo\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,11,0,0\"\u003e\u003cb data-path-to-node=\"2,11,0,0\" data-index-in-node=\"0\"\u003eInput Fuse Ratings\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"2,11,1,0\"\u003e\u003cb data-path-to-node=\"2,11,1,0\" data-index-in-node=\"0\"\u003e100\/120V:\u003c\/b\u003e 2A Ceramic Slo Blo\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,11,1,1\"\u003e\n\u003cp data-path-to-node=\"2,11,1,2\"\u003e\u003cb data-path-to-node=\"2,11,1,2\" data-index-in-node=\"1\"\u003e220\/240V:\u003c\/b\u003e 1A Ceramic Slo Blo\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,12,0,0\"\u003e\u003cb data-path-to-node=\"2,12,0,0\" data-index-in-node=\"0\"\u003eFilament Fuse Ratings\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"2,12,1,0\"\u003e\u003cb data-path-to-node=\"2,12,1,0\" data-index-in-node=\"0\"\u003e100\/120V:\u003c\/b\u003e 2A Ceramic Slo Blo\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,12,1,1\"\u003e\n\u003cp data-path-to-node=\"2,12,1,2\"\u003e\u003cb data-path-to-node=\"2,12,1,2\" data-index-in-node=\"1\"\u003e220\/240V:\u003c\/b\u003e 1A Ceramic Slo Blo\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,13,0,0\"\u003e\u003cb data-path-to-node=\"2,13,0,0\" data-index-in-node=\"0\"\u003eSecondary Fuse Ratings\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"2,13,1,0\"\u003e\u003cb data-path-to-node=\"2,13,1,0\" data-index-in-node=\"0\"\u003ePlate:\u003c\/b\u003e 2.5A Fast acting 600V\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,13,1,1\"\u003e\n\u003cp data-path-to-node=\"2,13,1,2\"\u003e\u003cb data-path-to-node=\"2,13,1,2\" data-index-in-node=\"1\"\u003eScreen:\u003c\/b\u003e 0.75A Fast acting 600V\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,14,0,0\"\u003e\u003cb data-path-to-node=\"2,14,0,0\" data-index-in-node=\"0\"\u003eDimensions (W x D x H)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,14,1,0\"\u003e11.5 x 24 x 24 inches (29 x 61 x 61 cm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"2,15,0,0\"\u003e\u003cb data-path-to-node=\"2,15,0,0\" data-index-in-node=\"0\"\u003eWeight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp data-path-to-node=\"2,15,1,0\"\u003e\u003cb data-path-to-node=\"2,15,1,0\" data-index-in-node=\"0\"\u003eNet Weight:\u003c\/b\u003e 250 lbs (113 kg)\u003c\/p\u003e\n\u003cbr data-path-to-node=\"2,15,1,1\"\u003e\n\u003cp data-path-to-node=\"2,15,1,2\"\u003e\u003cb data-path-to-node=\"2,15,1,2\" data-index-in-node=\"1\"\u003eShipping Weight:\u003c\/b\u003e 350 lbs (159 kg)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"VTL","offers":[{"title":"Default Title","offer_id":43832508907586,"sku":null,"price":78995.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0029\/9686\/3046\/files\/s400-featured.png?v=1781051960","url":"https:\/\/trimira.com.au\/products\/signature-s-400-reference-stereo-amplifier","provider":"Trimira","version":"1.0","type":"link"}