{"product_id":"chord-electronics-etude-stereo-power-amplifier","title":"Chord Electronics Étude Stereo Power Amplifier","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Chord Electronics Étude is a compact, high-performance stereo power amplifier from Chord's Choral range. Delivering 150 watts RMS per channel into 4Ω, Étude combines Chord's advanced dual-feed-forward error-correction technology with fully balanced circuitry, proprietary MOSFET construction, and Class AB sliding-bias operation.\u003c\/span\u003e\u003ca href=\"https:\/\/chordelectronics.co.uk\/product\/etude?utm_source=chatgpt.com\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eDesigned to complement components such as DAVE and Prima, Étude offers substantial loudspeaker-driving capability in Chord's distinctive compact Choral chassis. For systems requiring additional power, Étude can also be configured for bridged mono operation, delivering 300 watts into 4Ω.\u003c\/span\u003e\u003ca href=\"https:\/\/chordelectronics.co.uk\/product\/etude?utm_source=chatgpt.com\"\u003e\u003cspan\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/6139\/9068\/files\/Ensembe-Stand-Complete.jpg?v=1789901643\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eAdvanced Dual-Feed-Forward Technology\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eÉtude introduced a fundamentally new amplifier topology for Chord, using multi-feedback and dual-feed-forward error correction to monitor and compensate for nonlinearities within the amplifier's output stage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis technology works with Chord's proprietary high-power MOSFET devices to provide precise control of the audio signal while maintaining the speed and low distortion expected from Chord's high-performance amplification designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003e150 W Stereo \/ 300 W Bridged Mono\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIn standard stereo operation, Étude delivers 150 W RMS per channel into 4Ω at 0.05% distortion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor systems requiring greater output from separate amplifiers, Étude can be operated in bridged mono mode, increasing output to 300 W into 4Ω. Two Étude amplifiers can therefore be configured as dedicated monoblocks, with one amplifier powering each loudspeaker.\u003c\/span\u003e\u003ca href=\"https:\/\/chordelectronics.co.uk\/product\/etude?utm_source=chatgpt.com\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eFully Balanced Class AB Design\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eÉtude uses fully balanced circuitry with Class AB sliding-bias operation. It provides both balanced XLR and unbalanced RCA stereo inputs, making it compatible with a wide range of high-quality preamplifiers and variable-output source components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe amplifier does not provide input switching, so the XLR and RCA connections should not be used simultaneously. Étude is also a dedicated power amplifier and therefore requires a preamplifier or another source capable of properly controlling output level.\u003c\/span\u003e\u003ca href=\"https:\/\/chordelectronics.co.uk\/wp-content\/uploads\/2018\/05\/Etude-user-manual-V1.3.pdf?utm_source=chatgpt.com\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eHigh-Frequency Power Supply Architecture\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInternally, Étude uses three individual high-frequency switch-mode power-supply units: dedicated supplies for the active power rails plus an additional supply for auxiliary rails.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eChord combines this architecture with advanced internal shielding, proprietary MOSFET devices, and an actively cooled plenum-chamber design within the compact aluminum chassis.\u003c\/span\u003e\u003ca href=\"https:\/\/chordelectronics.co.uk\/product\/etude?utm_source=chatgpt.com\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eDesigned for the Choral System\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eÉtude belongs to Chord's Choral range, making it a natural partner for other Choral components. Chord specifically recommends Prima, DAVE and Symphonic, as well as the Choral Ensemble Stand.\u003c\/span\u003e\u003ca href=\"https:\/\/chordelectronics.co.uk\/product\/etude?utm_source=chatgpt.com\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eDAVE can provide DAC and preamplifier functionality directly into Étude, while Prima provides a dedicated analog preamplifier solution.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e150 W RMS per channel into 4Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBridgeable to 300 W into 4Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAdvanced dual-feed-forward error correction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eFully balanced Class AB sliding-bias circuitry\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProprietary Chord MOSFET construction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBalanced XLR and unbalanced RCA inputs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHigh-frequency switch-mode power supplies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSolid aluminum Choral chassis\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Chord Electronics","offers":[{"title":"Black","offer_id":54593180959004,"sku":null,"price":7165.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":54593180991772,"sku":null,"price":7165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0833\/6139\/9068\/files\/Untitleddesign-2026-09-20T145531.857.png?v=1789896595","url":"https:\/\/rockonav.com\/products\/chord-electronics-etude-stereo-power-amplifier","provider":"RockOnAV","version":"1.0","type":"link"}