{"product_id":"aries-cerat-impera-series-reference-signature-and-le-preamplifier-copy","title":"Aries Cerat Impera Series - Reference, Signature and LE PreAmplifier","description":"\u003ch1 class=\"product-title visible\"\u003eAries Cerat - Impera Series - Reference, Signature and LE \u003c\/h1\u003e\n\u003cp class=\"visible\"\u003eThe Impera II pre-amplifier is a showcase of Aries Cerat's unique Inverted Triode Technology, a vacuum tube technology innovation developed by Aries Cerat and utilized in the Impera II series of audio designs.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eThe Inverted Triode is a unique active element, widely different to any kind of vacuum tube used in audio and tube electronics in general.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eThree electrodes , a cathode, grid and plate, are combined to give an amplification device completely different in operation than the classic vacuum tube.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eInside a typical vacuum tube, an electron stream emitted from a heated cathode ,is accelerated toward a positively charged anode, which has a flat plate structure.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eThe electron flow is impeded by the grid ,a negatively charged wire-grid structure, placed between the cathode and anode. This operation resembles a typical fluid control valve, hence the name valve tube.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eInside an Inverted Triode tube, the electron stream emitted from a heated cathode, is accelerated towards the anode, now a wire-grid-like structure . The electron flow is now unimpeded since no grid structure exists between the anode and cathode.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eInstead, a plate-like structure, enveloping the cathode\/anode assembly, called the control “grid” is shadowing the anode electrical field, having a very high negative electrical field itself, thus “pushing” the electrons away from the anode.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eThis mode of electron flow control is completely different than a triode mode of operation. \u003c\/p\u003e\n\u003cp class=\"visible\"\u003eThe parameters of this new active element, are far different than any conventional triode; the inverted triode actually acts like a virtual “vacuum state transformer”. Instead of having gain, the inverted triode has a gain that of a fraction of unity,just like a step down transformer. The internal resistance is many times lower, and input capacitance is nearly zero.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eThe extra-ordinary parameters of the inverted triode used (100 times lower plate resistance than a 6SN7 tube, zero input capacitance) ,gives the output stage unrivalled measured performance : 2Hz-500KHz bandwidth , figures unreached by any triode - transformer output stage.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eAn example of the Inverted Triode’s technical advantage over a typical vacuum tube,ex 300B,is a comparison of the two  ,driving the same output transformer.The Inverted Triode tube presented a power bandwidth of 2Hz-500.000Hz where the 300B tube had a bandwidth of 15Hz-100.000Hz. Same transformer, same driver tube, but 5 times the bandwidth for the Inverted Triode tube.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eThe output stage is driven by the input tube with the help of an amorphous double-C core signal choke.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eThe output stage is driving a highest quality double-C core output transformer, with bifilar winding technique, which gives the transformer supreme frequency extension and supreme transient signal response parameters.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eSignal attenuation is achieved with a uniquely designed multi-tap input transformer, which has special bifilar winding as well ,resulting in excellent performance both in frequency and time domain. The 26 separate taps are switched by small signal sealed relays.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eAll four vacuum tubes are fed by special quality PSUs, with four individual choke filtered capacitor banks.\u003c\/p\u003e\n\u003cp class=\"visible\"\u003e\u003cbr\u003eThe sound or non-sound of the Impera II, is a brand new experience in the audio world , and is achieved by radical new solutions, created after out-of the box research and testing.\u003c\/p\u003e\n\u003ch3\u003eSPECIFICATIONS\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp class=\"visible\"\u003eMaximum gain: X7\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eOutput stage bandwidth: 2Hz-500KHz\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eAttenuation method : Multi-tap input transformer\u003c\/p\u003e\n\u003cp class=\"visible\"\u003ePower supply : Double choke filtered quad power supplies\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eInputs: 5 unbalanced (balanced as an option), HT pass-through\u003c\/p\u003e\n\u003cp class=\"visible\"\u003eOutput: 15VRMS max unbalanced (balanced as an option)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%;\"\u003e \u003c\/span\u003e\u003c\/p\u003e","brand":"Aries Cerat","offers":[{"title":"Reference","offer_id":68275934167263,"sku":null,"price":45000.0,"currency_code":"AUD","in_stock":true},{"title":"Signature","offer_id":68275934200031,"sku":null,"price":98000.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0548\/9645\/9818\/files\/AriesCeratImperaSeriesSeries.png?v=1792738027","url":"https:\/\/gc-hifi.com.au\/products\/aries-cerat-impera-series-reference-signature-and-le-preamplifier-copy","provider":"GC Hifi","version":"1.0","type":"link"}