{"product_id":"feliks-envy-susvara-ed","title":"Feliks Audio Envy Susvara Edition Headphone Amplifier","description":"\u003cp\u003eThe \u003cstrong\u003eFeliks Audio Envy Susvara Edition\u003c\/strong\u003e is a flagship Class A, single-ended, output transformer-coupled tube headphone amplifier handcrafted in Poland. Specially factory-tuned for maximum synergy with ultra-demanding planar magnetic headphones—including the original HiFiMAN Susvara—the Susvara Edition elevates performance to Anniversary levels. Featuring upgraded amorphous-core output transformers, UPOCC single-crystal copper signal wiring, and a dedicated \"Susvara\" gain setting, it delivers up to 9 Watts of pure Class A power to drive the most difficult headphone loads with total authority and natural 300B harmonic richness.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eOrdering Note:\u003c\/strong\u003e Specially built-to-order amplifier. Please allow approximately 6 to 7 weeks for delivery.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKEY FEATURES \u0026amp; DESIGN HIGHLIGHTS\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eHigh-Power Class A 300B Architecture:\u003c\/strong\u003e Single-ended, output transformer-coupled circuit utilizing matched Stradi S300B power tubes and PSVANE CV-181 Mk2 (6SN7) driver tubes.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDedicated \"Susvara\" Gain Profile:\u003c\/strong\u003e Features an optimized gain mode delivering up to 9W max output power (a 12% increase over the original Envy), providing exceptional dynamic headroom for low-sensitivity headphones.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eAmorphous-Core Output Transformers:\u003c\/strong\u003e Upgraded output transformers offer superior frequency extension, rapid transient response, and ultra-low noise levels.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eAnniversary-Level Componentry:\u003c\/strong\u003e Wired with UPOCC single-crystal copper internal cabling and precision components from Jantzen, Vishay, Nichicon, and Dale.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePreamplifier Functionality:\u003c\/strong\u003e Functions as a high-end preamplifier equipped with switchable RCA and balanced XLR inputs and outputs (up to 5V RMS).\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eSelectable Impedance Matching:\u003c\/strong\u003e Includes three output impedance settings (LO, MID, HI\/SUSVARA) to optimize damping and matching across various headphone loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\n\n\u003ctable style=\"width: 100%;\"\u003e\n\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAmplifier Architecture\u003c\/td\u003e\n      \u003ctd\u003eClass A Single-Ended, Transformer-Coupled Tube\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Tubes\u003c\/td\u003e\n      \u003ctd\u003e2x Stradi S300B Matched Pair\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDriver Tubes\u003c\/td\u003e\n      \u003ctd\u003e2x PSVANE CV-181 Mk2 \/ 6SN7 Matched Pair\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaximum Power Output\u003c\/td\u003e\n      \u003ctd\u003eUp to 9 W (at \"Susvara\" gain setting) \/ 5 W at 16 Ω (MID setting, 1% THD)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFrequency Response\u003c\/td\u003e\n      \u003ctd\u003e18 Hz – 40 kHz (±1 dB) \/ 7 Hz – 100 kHz (±3 dB)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAudio Inputs\u003c\/td\u003e\n      \u003ctd\u003e2x Unbalanced RCA Pairs (IN1, IN2), 1x Balanced XLR Pair (IN3)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInput Sensitivity \/ Impedance\u003c\/td\u003e\n      \u003ctd\u003e1 V RMS \/ 100 kΩ (RCA), 10 kΩ (XLR)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHeadphone Outputs\u003c\/td\u003e\n      \u003ctd\u003e1x 4-Pin Balanced XLR, 1x 6.35 mm (1\/4\") Jack\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePre-Amplifier Outputs\u003c\/td\u003e\n      \u003ctd\u003e1x RCA Pair, 1x Balanced XLR Pair (Max 5V RMS output @ 600 Ω, THD \u0026lt; 0.5%)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eImpedance Selector Guidance\u003c\/td\u003e\n      \u003ctd\u003e\n\u003cstrong\u003eLO:\u003c\/strong\u003e Up to 60 Ω | \u003cstrong\u003eMID:\u003c\/strong\u003e Up to 300 Ω | \u003cstrong\u003eHI \/ SUSVARA:\u003c\/strong\u003e Up to 600 Ω\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInternal Output Impedance\u003c\/td\u003e\n      \u003ctd\u003e\n\u003cstrong\u003eLO (at 32 Ω load):\u003c\/strong\u003e 3.8 Ω | \u003cstrong\u003eMID (at 100 Ω load):\u003c\/strong\u003e 8.8 Ω | \u003cstrong\u003eHI (at 600 Ω load):\u003c\/strong\u003e 20 Ω\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInternal Wiring \/ Transformers\u003c\/td\u003e\n      \u003ctd\u003eUPOCC Single-Crystal Copper Wiring \/ Amorphous-Core Transformers\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Consumption \/ Voltage\u003c\/td\u003e\n      \u003ctd\u003e110 VA \/ 230 V (±5%) 50\/60 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDimensions (W x D x H)\u003c\/td\u003e\n      \u003ctd\u003e330 x 350 x 185 mm (without tubes) \/ 330 x 350 x 245 mm (with tubes installed)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNet Weight\u003c\/td\u003e\n      \u003ctd\u003e15.1 kg (33.3 lbs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n      \u003ctd\u003eMatched Stradi S300B Pair, Matched CV-181 Pair, AC Power Cord, User Manual, Warranty Card\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCountry of Origin\u003c\/td\u003e\n      \u003ctd\u003ePoland (Feliks Audio)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Feliks Audio","offers":[{"title":"Wenge","offer_id":52739959095562,"sku":"FELIKSAUDI-8960","price":11999.0,"currency_code":"GBP","in_stock":true},{"title":"Oak","offer_id":52739959128330,"sku":"FELIKSAUDI-8961","price":11999.0,"currency_code":"GBP","in_stock":true},{"title":"American Walnut","offer_id":52739959161098,"sku":"FELIKSAUDI-8962","price":11999.0,"currency_code":"GBP","in_stock":true},{"title":"Zebrano","offer_id":52739959193866,"sku":"FELIKSAUDI-8963","price":11999.0,"currency_code":"GBP","in_stock":true},{"title":"Amazaque","offer_id":52739959226634,"sku":"FELIKSAUDI-8964","price":11999.0,"currency_code":"GBP","in_stock":true},{"title":"Merbau","offer_id":52739959259402,"sku":"FELIKSAUDI-8965","price":11999.0,"currency_code":"GBP","in_stock":true},{"title":"Sapele","offer_id":52739959292170,"sku":"FELIKSAUDI-8966","price":11999.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3283\/6618\/files\/feliks-audio-envy-susvara-edition-headphone-50140-p.png?v=1773933845","url":"https:\/\/audioemotion.co.uk\/products\/feliks-envy-susvara-ed","provider":"Audio Emotion Limited","version":"1.0","type":"link"}