{"product_id":"cayin-cs-845a-reference-integrated-amplifier-type-uk","title":"Cayin CS-845A Reference Integrated Amplifier - Type UK","description":"\u003cp\u003eFor 2026, Cayin bring to you the new Reference model single-ended Class-A amplifier.\u003c\/p\u003e\n\u003cp\u003eThe new benchmark for tube amplifiers.\u003c\/p\u003e\n\u003cp\u003eThe new, revised version of the single-ended class A integrated amplifier CS-845A bears the addition \"Reference\" and is intended to define the benchmark in this amplifier class.\u003c\/p\u003e\n\u003cp\u003eThe elaborately designed high-end amplifier, freely wired with thick, silver-plated signal cables, now has a high-quality headphone output.  \u003c\/p\u003e\n\u003cp\u003eThe Cayin CS-845A Reference comes with the claim to redefine the standard in the tube world.\u003c\/p\u003e\n\u003cp\u003eThe elaborately over-engineered and designed CS-845A Reference uses heavy gauge silver-plated signal cables, pushes the limits of playback quality for tube amps even further in the direction of high-end.\u003c\/p\u003e\n\u003cp\u003eThe CS-845A Reference has been significantly improved in many respects compared to existing concepts.\u003c\/p\u003e\n\u003cp\u003eIts EI output transformers have an extreme bandwidth in order to extend the transmission range even further.\u003c\/p\u003e\n\u003cp\u003eThe power supply now draws its supply voltage from a large-sized toroidal transformer - a design that stands for low stray fields.\u003c\/p\u003e\n\u003cp\u003eBut the heart of the CS-845A Reference are its selected tubes: The voltage amplification is handled by the classic WE6SN7. The outstanding 300B works as the driver tube for the 845 tube, which is also anchored in the type designation. This combination guarantees homogeneous music reproduction in conjunction with the highest resolution.\u003c\/p\u003e\n\u003cp\u003eThe negative feedback factor can be freely selected between 0 dB NFB (negative feedback) and -3 dB NFB for individual sound tuning according to personal taste.\u003c\/p\u003e\n\u003cp\u003eThe CS-845A Reference thus more or less adapts the damping factor to the respective loudspeakers in order to enable perfect control.\u003c\/p\u003e\n\u003cp\u003eAnother example of the extensive detailed work is the problem-free hum adjustment of the 300B using easily accessible potentiometers on the top cover - easy and convenient.\u003c\/p\u003e\n\u003cp\u003eThe same applies to the bias setting with feedback from the integrated measuring instrument.\u003c\/p\u003e\n\u003cp\u003eBest of all: All functions, including adjusting the negative feedback factor, can be controlled via the remote control.\u003c\/p\u003e\n\u003cp\u003eFor the volume control, Cayin uses a particularly high-quality encapsulated Alps potentiometer with a motor drive. A pre-amplifier input allows the CS-845A Reference to be used purely as a power amp. After all, it pumps 26 watts per channel to the gold-plated speaker terminals.\u003c\/p\u003e\n\u003cp\u003eThe CS-845A Reference has a tube-friendly soft-start switch-on delay for the high-voltage supply so that you can enjoy this extraordinarily powerful and well-engineered integrated amplifier for a long time.\u003c\/p\u003e\n\u003ch2\u003eTechnical Data\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency range\u003c\/td\u003e\n\u003ctd\u003e9 Hz - 27 kHz (-3 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal harmonic distortion (THD)\u003c\/td\u003e\n\u003ctd\u003e0.25% (1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal to noise ratio\u003c\/td\u003e\n\u003ctd\u003e90 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance\u003c\/td\u003e\n\u003ctd\u003e100 k\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput impedance\u003c\/td\u003e\n\u003ctd\u003e4 ohm or 8 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003e300mV (Integrated) \/ 1300mV (Pre-In)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTubes\u003c\/td\u003e\n\u003ctd\u003e2 x WE6SN7, 2 x 300B, 2 x 845\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power (RMS)\u003c\/td\u003e\n\u003ctd\u003e26 watts RMS \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit\u003c\/td\u003e\n\u003ctd\u003eClass A, Single Ended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions W x H x D\u003c\/td\u003e\n\u003ctd\u003e420 x 389 x 240 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e38kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eManufacturer site\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca\u003eCayin\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cayin","offers":[{"title":"Satin Silver","offer_id":54107455455498,"sku":"CAYIN-3881-1","price":5990.0,"currency_code":"GBP","in_stock":true},{"title":"Satin Black","offer_id":54107455488266,"sku":"CAYIN-3881-2","price":5990.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3283\/6618\/files\/cayin-cs-845a-reference-integrated-amplifier-type-uk-black-40827-p_28f0095c-4ccd-4ddd-92f5-688574b5b660.jpg?v=1794414627","url":"https:\/\/audioemotion.co.uk\/products\/cayin-cs-845a-reference-integrated-amplifier-type-uk","provider":"Audio Emotion Limited","version":"1.0","type":"link"}