{"product_id":"audio-research-vsi75-se-integrated-amplifier","title":"Audio Research VSi75 SE Integrated Amplifier","description":"\u003ch3 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eReference-Derived Valve Musicality \u0026amp; 75-Watt KT120 Power | Available at Trimira Audio\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAudio Research VSi75 SE (Special Edition)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-performance vacuum tube integrated amplifier combining Audio Research’s Reference-series circuit heritage with a compact single-chassis design. Handcrafted in Minnesota, USA, this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecertified trade-in unit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e delivers \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e75 Watts per channel\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e through dedicated 4-ohm and 8-ohm output taps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe VSi75 SE uses four matched \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eKT120 output tubes\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e driven by two \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6H30 dual-triode driver tubes\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with a passive analogue line stage and a precision \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e103-step microprocessor-controlled volume attenuator\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Reference 75-derived output transformers and coupling capacitors provide wide-bandwidth valve amplification with substantial dynamic capability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFront-panel tube bias monitoring and an integrated tube-hour meter make ongoing valve maintenance straightforward, while the supplied machined aluminium remote provides convenient system control.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features \u0026amp; Technological Innovations\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReference 75 Circuit Heritage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Uses wide-bandwidth output transformers and coupling capacitors derived from the Audio Research REF75.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eKT120 \u0026amp; 6H30 Tube Complement:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Four matched KT120 output tubes and two 6H30 driver tubes deliver 75 W per channel.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e103-Step Precision Volume Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Microprocessor-controlled attenuation provides fine volume adjustment across the listening range.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTube Bias \u0026amp; Hour Monitoring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Front-panel display provides tube bias information and cumulative operating hours.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDedicated 4 Ω \u0026amp; 8 Ω Output Taps:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Separate transformer taps allow appropriate loudspeaker impedance matching.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSubstantial Power Supply Storage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Regulated supplies and approximately 350 joules of energy storage provide substantial dynamic reserves.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFive Analogue Line Inputs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Five single-ended RCA inputs provide straightforward integration with analogue source components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003e\u003cspan\u003eTechnical Detail\u003c\/span\u003e\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eAmplifier Topology\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVacuum Tube Stereo Integrated Amplifier (Passive Line Stage \/ Push-Pull Output)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eTube Complement\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 × Matched Pairs KT120 (Power Output), 2 × 6H30 (Driver Stage)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eContinuous Power Output\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e75 Watts per channel continuous (20 Hz – 20 kHz, 1.5% THD at 75W; 0.05% THD at 1W)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003ePower Bandwidth (-3 dB points)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 Hz – 70 kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eFrequency Response (-3 dB at 1W)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.0 Hz – 70 kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eInput Sensitivity\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.55V RMS Single-Ended for rated output (32.5 dB gain into 8 Ohms)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eInput Impedance\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e52.5 kOhms Single-Ended\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Input\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10V RMS (any input)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eOutput Taps\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Ohms, 4 Ohms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eOutput Regulation \/ Damping Factor\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 2 dB (8-Ohm load to open circuit) \/ Damping factor approx. 4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eOverall Negative Feedback\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eSlew Rate \/ Rise Time\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 V\/µs \/ 4 µs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eHum \u0026amp; Noise\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLess than 1.0 mV RMS (-88 dB below rated output, IHF weighted, volume down)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003ePower Supply Energy Storage\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 350 Joules (with automatic 40-second warm-up mute)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eAnalogue Inputs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 × Single-Ended Stereo RCA Line Inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eUser Controls \u0026amp; Display\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVolume Up\/Down (103 steps), Power, Input, Mute, Bias (front panel \u0026amp; solid aluminium IR remote)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e210W at idle, 400W at rated output, 600W maximum (1.0W standby)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eDimensions (W × H × D)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e36.8 cm × 23.5 cm × 41.3 cm (rear connectors extend 2.2 cm beyond chassis)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eNet Weight\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16.5 kg (36.4 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eFinish\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNatural Anodised Aluminium\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cbr\u003eCertified Trade-In Assurance at Trimira Audio\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAudio Research VSi75 SE is offered as a certified trade-in unit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e at Trimira Audio. Pre-owned valve equipment undergoes bench inspection, tube emission and bias testing, and extended acoustic auditioning by our Brisbane technical team.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eTrimira Audio\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to discuss tube hours, cosmetic condition, included accessories, warranty coverage, or to arrange a private demonstration.\u003c\/span\u003e\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":45968837443650,"sku":null,"price":8450.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0029\/9686\/3046\/files\/audio-research-vsi75-integrated-valve-amplifier-trade-in.jpg?v=1794455639","url":"https:\/\/trimira.com.au\/products\/audio-research-vsi75-se-integrated-amplifier","provider":"Trimira","version":"1.0","type":"link"}