{"product_id":"feliks-audio-bliss-balanced-electrostatic-headphone-amplifier","title":"Feliks Audio Bliss Balanced Electrostatic Headphone Amplifier","description":"\u003ch1\u003eFeliks Audio Bliss Balanced Electrostatic Headphone Amplifier\u003c\/h1\u003e\n\u003ch3\u003eFully balanced pure class-A powered by 300B tubes, designed to drive any electrostatic headphones. Handcrafted in Poland with five-year warranty\u003c\/h3\u003e\n\u003cp\u003eThe Feliks Audio Bliss is the result of over four years of research, development, and extensive testing and listening. This fully balanced electrostatic tube headphone amplifier was built to drive any electrostatic headphone, no matter the required bias voltage. \u003c\/p\u003e\n\u003cp\u003eThe Bliss features four 6E5P tubes in a push-pull, pure class-A configuration, as well as four EL34 and four 300B power tubes, forming a cascoded differential amplifier. A manually adjustable bias voltage from 120 V to 720 V ensures great flexibility, and there are two headphone sockets, one dubbed PRO (5-pin) and the other NORMAL (6-pin). \u003c\/p\u003e\n\u003cp\u003eThe NOS 6E5P tubes in the driver stage work as triodes, providing exceptionally high voltage gain. The premium Stradi S300B tubes offer ultimate reliability and sonic performance. Other high-quality components are from brands such as Vishay, Dale, Nichicon, and Jantzen. The volume control uses a 24-level high-quality DACT stepped attenuator.\u003c\/p\u003e\n\u003cp\u003eThe Bliss is of premium construction, hand-crafted in Poland, and comes in beautiful solid wood options. The amplifier comes with a five-year warranty. This is two years longer than the standard Feliks Audio warranty and is available only on amps purchased at Upscale Audio.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClass-A topology with 6E5P driver tubes in a push-pull configuration\u003c\/li\u003e\n\u003cli\u003ePower stage forming a Hedge topology using EL34 and 300B tubes\u003c\/li\u003e\n\u003cli\u003eLow internal operating temperature that helps maintain working parameters and stable operation despite the device’s high power\u003c\/li\u003e\n\u003cli\u003ePoint-to-point soldering of critical components to minimize noise and interference\u003c\/li\u003e\n\u003cli\u003eHigh-quality Lundahl transformers and a DACT stepped attenuator to reduce channel imbalance, lower distortion, and improve sonic quality\u003c\/li\u003e\n\u003cli\u003eCarefully optimized signal routing and component layout to ensure minimal interference and an exceptionally clean internal structure\u003c\/li\u003e\n\u003cli\u003eFive-year extended warranty for the amplifier\u003c\/li\u003e\n\u003cli\u003eSix-month warranty for the tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBliss Electrostatic Headphone Amplifier\u003c\/li\u003e\n\u003cli\u003e4 x 6E5P tubes\u003c\/li\u003e\n\u003cli\u003e4 x 300B tubes\u003c\/li\u003e\n\u003cli\u003e4 x EL34 tubes\u003c\/li\u003e\n\u003cli\u003eAC Power Cord\u003c\/li\u003e\n\u003cli\u003eUser Manual\u003c\/li\u003e\n\u003cli\u003eWarranty Card\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eDriver Tubes:\u003c\/b\u003e 4 x 6E5P\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower Tubes:\u003c\/b\u003e 4 x 300B, 4 x EL34\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eElectrostatic Headphone Bias (PRO, Normal):\u003c\/b\u003e 240 V–720 V, 120 V–360 V\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInput Sensitivity:\u003c\/b\u003e 2 V \/ 4 V\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMaximum Output Voltage:\u003c\/b\u003e 520 V RMS \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAttenuator:\u003c\/b\u003e 24-position high-quality DACT stepped attenuator\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInput Impedance:\u003c\/b\u003e 10k ohm (RCA) \/ 10k ohm (XLR)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eGain:\u003c\/b\u003e ~250x\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInputs:\u003c\/b\u003e 2 x stereo RCA, 1 x stereo XLR\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eElectrostatic Headphone Outputs:\u003c\/b\u003e PRO ONLY 5-pin (580 V bias)\u003cbr\u003eNORMAL 6-pin (230 V bias)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePower Consumption:\u003c\/b\u003e 250 W\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDimensions (WHD):\u003c\/b\u003e 18.5\" x 18.5\" x 11.6\" (47 x 47 x 29.5 cm)\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e 57.3 lb. (26 kg)\u003c\/p\u003e","brand":"Feliks Audio","offers":[{"title":"American Walnut","offer_id":52445995335864,"sku":"BLISS-AW","price":22800.0,"currency_code":"USD","in_stock":true},{"title":"Oak","offer_id":52445995368632,"sku":"BLISS-OAK","price":22800.0,"currency_code":"USD","in_stock":true},{"title":"Zebrano","offer_id":52445995401400,"sku":"BLISS-ZEB","price":22800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/AmericanWalnut_10.jpg?v=1767804336","url":"https:\/\/upscaleaudio.pro\/products\/feliks-audio-bliss-balanced-electrostatic-headphone-amplifier","provider":"Upscale Audio","version":"1.0","type":"link"}