{"product_id":"illusion-ii-preamp-w-dac-headphone-amp-demo","title":"Illusion II PREAMP W DAC \u0026 HEADPHONE AMP (DEMO)","description":"\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cdiv class=\"readmore full\"\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003csection class=\"elementor-section elementor-top-section elementor-element elementor-element-ba6cc85 elementor-section-full_width product-overview-section elementor-section-height-default elementor-section-height-default\" data-id=\"ba6cc85\" data-element_type=\"section\"\u003e\n\u003cdiv class=\"elementor-container elementor-column-gap-default\"\u003e\n\u003cdiv class=\"elementor-row\"\u003e\n\u003cdiv class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-44d92bf product-overview-left-column product-overview-top-left-column\" data-id=\"44d92bf\" data-element_type=\"column\"\u003e\n\u003cdiv class=\"elementor-column-wrap elementor-element-populated\"\u003e\n\u003cdiv class=\"elementor-widget-wrap\"\u003e\n\u003cdiv class=\"elementor-element elementor-element-5945280 elementor-widget elementor-widget-heading\" data-id=\"5945280\" data-element_type=\"widget\" data-widget_type=\"heading.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003ch3 class=\"elementor-heading-title elementor-size-default\"\u003eKrell Illusion II Preamplifier\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"elementor-element elementor-element-d7b6b27 product-review-on-overview-page elementor-widget elementor-widget-text-editor\" data-id=\"d7b6b27\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cdiv class=\"elementor-text-editor elementor-clearfix\"\u003e“… I loved about the Illusion II’s sound was that I never found it harsh, edgy, or bright. Bass sounded appropriately full-bodied, keyboards suitably spacious, and guitar had lots of body and soul…just as it should.”\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"elementor-element elementor-element-9c3c2b3 testimonial-author-on-overview-page elementor-widget elementor-widget-text-editor\" data-id=\"9c3c2b3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cdiv class=\"elementor-text-editor elementor-clearfix\"\u003e\n\u003cb\u003e— Brent Butterworth,\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eHome Theater Review\u003c\/em\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-04e0e72 product-overview-featured-image-column\" data-id=\"04e0e72\" data-element_type=\"column\"\u003e\n\u003cdiv class=\"elementor-column-wrap elementor-element-populated\"\u003e\n\u003cdiv class=\"elementor-widget-wrap\"\u003e\n\u003cdiv class=\"elementor-element elementor-element-7e04d581 elementor-widget elementor-widget-theme-post-featured-image elementor-widget-image\" data-id=\"7e04d581\" data-element_type=\"widget\" data-widget_type=\"theme-post-featured-image.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cdiv class=\"elementor-image\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"elementor-section elementor-top-section elementor-element elementor-element-3e66ffe8 elementor-section-full_width product-overview-section elementor-section-height-default elementor-section-height-default\" data-id=\"3e66ffe8\" data-element_type=\"section\"\u003e\n\u003cdiv class=\"elementor-container elementor-column-gap-default\"\u003e\n\u003cdiv class=\"elementor-row\"\u003e\n\u003cdiv class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-4bd5adf product-overview-left-column product-overview-bottom-left-column\" data-id=\"4bd5adf\" data-element_type=\"column\"\u003e\n\u003cdiv class=\"elementor-column-wrap elementor-element-populated\"\u003e\n\u003cdiv class=\"elementor-widget-wrap\"\u003e\n\u003cdiv class=\"elementor-element elementor-element-ecc2a1a elementor-widget elementor-widget-text-editor\" data-id=\"ecc2a1a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cdiv class=\"elementor-text-editor elementor-clearfix\"\u003e\n\u003cp\u003eThe Illusion II is the perfect centerpiece for a world class digital and analog audio system. Added to the normal selection of balanced and single- ended inputs are five digital inputs. The digital module features AES\/EBU, coaxial, and optical digital inputs for use with streaming devices or other digital sources.\u003c\/p\u003e\n\u003ch3\u003eCircuitry Highlights\u003c\/h3\u003e\n\u003cp\u003eThe Illusion II preamplifier is a dual monaural design with the left and right channels afforded their own power supply regulation and individual circuit boards. All signal gain is executed with surface mount technology using proprietary multiple-output current mirrors with nearly 500 times the open loop linearity of other designs. Featuring 700 kHz bandwidth in a zero feedback, balanced, Krell Current Mode design, the Illusion II shares the same design philosophy as its bigger brother, the flagship Illusion preamplifier. Negative feedback is not used anywhere in the preamp, nor is it necessary. Open-loop distortion is typically less than 0.003%. The volume control is realized with a balanced resistor ladder – bandwidth and transient response of the preamp circuitry are virtually unaffected by the volume setting. The headphone circuitry is identical to the main circuitry, offering private listening with the same performance as speaker playback.\u003c\/p\u003e\n\u003ch3\u003eDigital Module Highlights\u003c\/h3\u003e\n\u003cp\u003eThe digital module supports up to 24 bit\/192kHz LPCM. All digital signals are fed to an ESS Sabre DAC and then sent to Krell’s Current Mode, discrete, balanced analog circuitry.\u003c\/p\u003e\n\u003ch3\u003ePower Supply Highlights\u003c\/h3\u003e\n\u003cp\u003eOversized for a preamplifier, the power supply features a 95 VA transformer  and 40,000 µF of capacitance giving it the ability to respond quickly to musical demands. The large power supply improves noise rejection and renders the Illusion II impervious to all but the most severe AC voltage power fluctuations. A new eco-friendly standby mode reduces power consumption to 2W.\u003c\/p\u003e\n\u003cp\u003eDownload the \u003ca href=\"http:\/\/www.krellhifi.com\/wp-content\/uploads\/2020\/05\/Krell_Illusion_II_Setup_Guide.pdf\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e“\u003c\/span\u003eKrell Illusion II Setup Guide\u003cspan data-mce-fragment=\"1\"\u003e”\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003eDownload the \u003ca href=\"http:\/\/www.krellhifi.com\/wp-content\/uploads\/2020\/05\/Krell_IllusionII_Product_Sheet.pdf\"\u003e“Krell Illusion II Product Sheet“\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch3\u003eFeatures \u0026amp; Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAnalog Inputs\u003c\/strong\u003e\u003cbr\u003e2 pr. balanced via XLR connectors\u003cbr\u003e3 pr. single-ended via RCA connectors\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003cbr\u003e1 AES\/EBU via XLR connector\u003cbr\u003e2 coaxial via RCA connectors\u003cbr\u003e2 optical via Toslink connectors\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMain outputs\u003c\/strong\u003e\u003cbr\u003e1 pr. balanced via XLR connectors\u003cbr\u003e1 pr. single-ended via RCA connectors\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeadphone output\u003c\/strong\u003e\u003cbr\u003e1 via 3-conductor 6.35 mm (1\/4 inch) connector\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eControl inputs\u003c\/strong\u003e\u003cbr\u003e1 RS-232 input via a 9-pin D-subminiature connector\u003cbr\u003e1 remote IR detector input via a 3-conductor 3.5 mm connector\u003cbr\u003e1 12 VDC trigger input via 2-conductor 3.5 mm connector\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eControl outputs\u003c\/strong\u003e\u003cbr\u003e2 individually programmable 12 VDC trigger outputs via 2-conductor 3.5mm connectors (30 mA maximum per output)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput impedance\u003c\/strong\u003e\u003cbr\u003eBalanced: 40kΩ\u003cbr\u003eSingle-ended 20kΩ\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOutput impedance\u003c\/strong\u003e\u003cbr\u003eBalanced: 310 Ω\u003cbr\u003eSingle-ended: 155 Ω\u003cbr\u003eHeadphone: \u0026lt;3.0Ω\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrequency response\u003c\/strong\u003e\u003cbr\u003e20 Hz to 20 kHz +0, -0.02 dB\u003cbr\u003e0.25 Hz to 1.2 MHz +0, -3 dB\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTotal harmonic distortion plus noise\u003c\/strong\u003e\u003cbr\u003eBalanced Output: \u0026lt;0.003%, 20 Hz to 20 kHz, at 4.0 V RMS\u003cbr\u003eHeadphone: \u0026lt;0.09%, 20 Hz to 20 kHz, 2.0 V RMS, 32 Ω load\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003cbr\u003eBalanced: 12.0 dB\u003cbr\u003e6 dB (single-ended output)\u003cbr\u003eSingle-ended: 6.0 dB\u003cbr\u003eHeadphone: 5.1 dB with 32 Ω load\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVolume control\u003c\/strong\u003e\u003cbr\u003eCurrent mode, 12-bit, discrete R-2R ladder\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput overload\u003c\/strong\u003e\u003cbr\u003e\u0026gt; 7.0 V RMS balanced or single-ended\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOutput overload\u003c\/strong\u003e\u003cbr\u003eBalanced: \u0026gt;16 V RMS\u003cbr\u003eSingle-ended: \u0026gt;8.0 V RMS\u003cbr\u003eHeadphone: \u0026gt;3.0 V RMS, 32 Ω load\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignal-to-noise ratio\u003c\/strong\u003e\u003cbr\u003e100 dB wideband, unweighted\u003cbr\u003e107 dB ”A”-weighted, both referred to 4.0 V RMS balanced\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower consumption\u003c\/strong\u003e\u003cbr\u003eStandby: \u0026lt;2 Watts\u003cbr\u003ePower on: 40 Watts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003cbr\u003ePreamplifier only:\u003cbr\u003e17.3 in.W x 3.8 in. H x 18.3 in. D\u003cbr\u003e43.8 cm W x 9.7 cm H x 46.4 cm D\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003cbr\u003eShipped: 38 lbs., 17.2 kg\u003cbr\u003ePreamplifier only: 23 lbs., 10.4 kg\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"elementor-section elementor-top-section elementor-element elementor-element-0ea060c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0ea060c\" data-element_type=\"section\"\u003e\n\u003cdiv class=\"elementor-container elementor-column-gap-default\"\u003e\n\u003cdiv class=\"elementor-row\"\u003e\n\u003cdiv class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-db2b138\" data-id=\"db2b138\" data-element_type=\"column\"\u003e\n\u003cdiv class=\"elementor-column-wrap elementor-element-populated\"\u003e\n\u003cdiv class=\"elementor-widget-wrap\"\u003e\n\u003cdiv class=\"elementor-element elementor-element-09d2897 elementor-widget elementor-widget-text-editor\" data-id=\"09d2897\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"\u003e\n\u003cdiv class=\"elementor-widget-container\"\u003e\n\u003cdiv class=\"elementor-text-editor elementor-clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Krell","offers":[{"title":"Default Title","offer_id":62861731168415,"sku":null,"price":10400.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5532\/6111\/files\/IMG_8542_1edd80b7-09c3-4408-a7f1-d97600f6383e.jpg?v=1788958937","url":"https:\/\/altitudoaudio.ca\/products\/illusion-ii-preamp-w-dac-headphone-amp-demo","provider":"Altitudo Audio","version":"1.0","type":"link"}