{"product_id":"cayin-ha-1a-mk3-rohren-kopfhorerverstarker","title":"Cayin HA-1A MK3 - Tube Headphone Amplifier","description":"\u003cp\u003e\u003cstrong\u003eDelivery time: approx. 2 weeks\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eCayin HA-1A MK3\u003c\/h2\u003e\n\u003ch3\u003eTube Headphone Amplifier \u0026amp; Preamplifier\u003c\/h3\u003e\n\u003cp\u003e\u003ci\u003eWhere Music Finds Its Soul\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_01.jpg?v=1790242001\" alt=\"\"\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003ch3\u003eCarefully Selected and Matched Premium Tubes\u003c\/h3\u003e\n\u003cp\u003eFour carefully selected vacuum tubes work together across the voltage amplification, driver, and power output stages, forming the foundation for the HA-1A MK3's warm, natural, and engaging sound.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTwo 12AU7\/ECC82 Voltage Amplification and Driver Tubes:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe HA-1A MK3 uses two 12AU7\/ECC82 tubes for both voltage amplification and driver stages. Carefully selected and matched, they ensure consistent performance, stable operation, and balanced sonic characteristics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTwo EL84EH\/6BQ5 Power Tubes - Single-Ended Class A Operation:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA matched pair of EL84EH\/6BQ5 power tubes operates in a single-ended Class A configuration. They deliver a silky, natural, highly musical tube sound with the sonic warmth and harmonic richness characteristic of this circuit topology.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePure Tube Architecture · Single-Ended Class A\u003c\/h3\u003e\n\u003cp\u003eThe HA-1A MK3 consistently relies on a pure tube amplifier architecture with a single-ended Class A output stage. Cayin's engineers precisely optimized the operating points and load impedance of the power tubes to fully unleash the characteristic overtone spectrum and musicality of Class A tube amplification.\u003c\/p\u003e\n\u003cp\u003eThe sonic result is compelling, with full-bodied, rich mids, smooth, highly resolved highs, natural harmonic texture, and a wide, airy soundstage. Via the balanced 4-pin XLR output, the HA-1A MK3 delivers up to \u003cb\u003e2700 mW + 2700 mW\u003c\/b\u003e - more than enough power reserves to drive even the most demanding over-ear headphones with confidence.\u003c\/p\u003e\n\u003ch3\u003eCustom Power and Output Transformers\u003c\/h3\u003e\n\u003cp\u003eTransformers are the heart of every tube amplifier. The HA-1A MK3 uses one power transformer and two output transformers, all designed and manufactured specifically for this model.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDual Output Transformers:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eEach channel is equipped with its own output transformer. Both feature a high-quality, wide-bandwidth EI-core design with precise hand winding and shielded housing. They are optimally matched to the impedance between the tube output stage and the headphones, offer an extremely wide frequency response and minimal transmission losses, and thus preserve signal integrity across the entire audible spectrum.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePowerful mains transformer:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe mains transformer is also based on a high-quality EI core and provides ample energy reserves along with absolutely stable, clean power delivery. Its fully enclosed metal housing with special damping effectively shields against magnetic interference, minimizes extraneous noise, and creates the foundation for distortion-free signal amplification.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndependent multi-stage power supply\u003c\/h3\u003e\n\u003cp\u003e\u003ci\u003eA cleaner foundation for the audio signal\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003eThe HA-1A MK3 uses an independent, multi-stage power supply architecture with separate power supplies for the voltage amplification and output stages. Decoupling the circuits effectively prevents mutual interference and crosstalk. The result is a pitch-black, noise-free background, enhanced microdynamics, and exceptionally clear detail retrieval - even at very low volume levels.\u003c\/p\u003e\n\u003ch3\u003eDual headphone outputs with impedance matching (High\/Low)\u003c\/h3\u003e\n\u003cp\u003eFor maximum flexibility when connecting various types of headphones, the front panel features two Neutrik-quality sockets: an unbalanced \u003cb\u003e6.35-mm jack output\u003c\/b\u003e and a balanced \u003cb\u003e4-pin XLR output\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eThe integrated \u003cb\u003eimpedance selector (L: 8–150 Ω \/ H: 151–600 Ω)\u003c\/b\u003e allows the amplifier to be perfectly matched to the respective sensitivity and load of the headphones. Combined with its powerful reserves, the HA-1A MK3 brings out the full sonic potential of every headphone - from easy-to-drive models to high-impedance studio classics.\u003c\/p\u003e\n\u003ch3\u003eHeadphone Amplifier \u0026amp; Preamplifier in One\u003c\/h3\u003e\n\u003cp\u003eThe HA-1A MK3 is far more than a pure headphone amplifier: It also serves as a fully fledged, audiophile \u003cb\u003etube preamplifier\u003c\/b\u003e. A toggle switch on the front makes it easy to switch between headphone operation and the preamp output.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTwo RCA high-level inputs (RCA 1 \/ RCA 2):\u003c\/b\u003e Allow quick switching between various signal sources such as DACs, CD players, or streamers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDedicated pre-out (RCA):\u003c\/b\u003e Enables direct connection to separate power amplifiers or active speakers, bringing typical tube warmth and musicality to your home HiFi system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCareful craftsmanship \u0026amp; thoughtful details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eALPS RK27 Precision Potentiometer:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA proven high-end volume potentiometer from ALPS’s RK27 series provides silky-smooth control and excellent channel tracking without level jumps or channel imbalances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVibration-damping tube socket:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA mechanically decoupled tube socket absorbs vibrations and footfall noise, protects against microphonic effects and guarantees trouble-free tube operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized internal layout with shielding:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe internal assemblies are clearly organized by function. Highly sensitive small-signal paths and current-carrying lines run strictly separately, reducing interference and crosstalk to an absolute minimum.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePoint-to-point free wiring:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eClassic point-to-point hand wiring by experienced technicians at all circuit points relevant to the sound guarantees minimal contact resistance, clean signal flow and decades of durability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e50-second soft-start power-on delay:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAn integrated soft start gently preheats the tubes for around 50 seconds before enabling the output signal. This protects connected headphones from on\/off pops and maximizes tube service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemovable tube protection:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe included tube cage can be attached or removed in no time. It protects people and equipment from contact and impacts without obstructing the thermal dissipation of heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ch4\u003eHeadphone output\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRated output power:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eUnbalanced (6.35 mm STD): 2400 mW + 2400 mW\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBalanced (4-pin XLR): 2700 mW + 2700 mW\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFrequency response:\u003c\/b\u003e 20 Hz – 20 kHz (-3 dB)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTotal harmonic distortion (THD+N):\u003c\/b\u003e 0.3 % (1 kHz, 200 mW; output power below 5 %)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInput sensitivity:\u003c\/b\u003e 1200 mV – 2000 mV\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSignal-to-noise ratio (S\/N):\u003c\/b\u003e 110 dB (A-weighted)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHeadphone impedance:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLow (L): 8 Ω – 150 Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh (H): 151 Ω – 600 Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eConnections:\u003c\/b\u003e 1× 6.35 mm jack (unbalanced), 1× 4-pin XLR (balanced)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePreamp output (PRE-OUT)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaximum output level:\u003c\/b\u003e 5 V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eGain:\u003c\/b\u003e 9 dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTotal harmonic distortion (THD+N):\u003c\/b\u003e 0.1 % (2 V RMS)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSignal-to-noise ratio (S\/N):\u003c\/b\u003e 105 dB (A-weighted)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInput sensitivity:\u003c\/b\u003e 750 mV\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOutput impedance:\u003c\/b\u003e 1.5 kΩ\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInput impedance:\u003c\/b\u003e 23 kΩ\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInputs\/outputs:\u003c\/b\u003e 2× stereo RCA input, 1× stereo RCA output\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGeneral data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTube complement:\u003c\/b\u003e 2× JJ 12AU7\/ECC82, 2× Electro-Harmonix EL84EH\/6BQ5\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDimensions (W × D × H):\u003c\/b\u003e 240 mm × 240 mm × 140 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e 8.8 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePower consumption:\u003c\/b\u003e max. 62 W\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMains fuse:\u003c\/b\u003e ~ 220 V–240 V: T500mAL250V ; ~ 100 V–120 V: T1AL250V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAmbient conditions (operation):\u003c\/b\u003e Temperature: 0 °C – 40 °C | Humidity: 20 % – 80 %\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAmbient conditions (storage):\u003c\/b\u003e Temperature: -20 °C – 70 °C | Humidity: 20 % – 90 %\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_02.jpg?v=1790242002\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_03.jpg?v=1790242005\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_04.jpg?v=1790242000\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_05.jpg?v=1790242001\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_06.jpg?v=1790242002\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_07.jpg?v=1790242003\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_08.jpg?v=1790242002\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_09.jpg?v=1790242000\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_10.jpg?v=1790242002\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_11.jpg?v=1790242001\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_12.jpg?v=1790242001\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_13.jpg?v=1790242003\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_14.jpg?v=1790241999\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/HA-1A-MK3-Website_Data_15.jpg?v=1790242001\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Audio Essence","offers":[{"title":"silver","offer_id":56939769332098,"sku":null,"price":949.0,"currency_code":"CHF","in_stock":true},{"title":"Black","offer_id":56939769364866,"sku":null,"price":949.0,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0304\/3261\/files\/Cayin-HA-1A-MK3-PROMO-01_a762d91f-dba2-48c1-b011-7c134caba5d3.jpg?v=1790254165","url":"https:\/\/audioessence.ch\/en\/products\/cayin-ha-1a-mk3-rohren-kopfhorerverstarker","provider":"Audio Essence","version":"1.0","type":"link"}