{"product_id":"accuphase-e-4000-integrated-stereo-amplifier-used","title":"Accuphase E-4000 Integrated Stereo Amplifier (USED)","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThis is the exact unit shown in the photos — an previous demo item being offered as used open box, complete with original box, remote, and all accessories. Please note that no factory warranty applies. The E-4000 is the 12th generation of Accuphase's flagship Class AB integrated amplifier lineage, representing a significant step forward from its predecessor, the E-480. The power amplifier section delivers 180 watts per channel into 8 ohms and 260 watts into 4 ohms, built around a four-fold parallel push-pull configuration of bipolar transistors and a balanced transmission design based on the instrumentation amplifier principle — pushing noise and distortion suppression to exceptional levels. A guaranteed damping factor of 800 — 33% higher than the E-480 — gives the E-4000 commanding control over virtually any loudspeaker load.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAt the heart of the preamplifier section is Accuphase's proprietary AAVA (Analog Vari-gain Amplifier) volume control, which eliminates all variable resistors from the signal path entirely. Combined with the ANCC (Noise and Distortion Canceling Circuit), the E-4000 achieves approximately 20% lower noise than its predecessor, with a signal-to-noise ratio of 109dB on line inputs. The power supply is anchored by a massive high-efficiency toroidal transformer and 40,000μF of filtering capacitance. A built-in MM\/MC phono stage, balanced XLR and RCA inputs, pre-out and main-in connectivity, and two optional expansion slots for add-on modules such as a DAC or additional phono board round out a thoroughly considered and beautifully built package.\u003c\/p\u003e","brand":"Accuphase","offers":[{"title":"Default Title","offer_id":45098430857269,"sku":null,"price":11000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/1704\/1461\/files\/IMG_7858.heic?v=1775070995","url":"https:\/\/alleliteaudio.com\/products\/accuphase-e-4000-integrated-stereo-amplifier-used","provider":"All Elite Audio","version":"1.0","type":"link"}