The multi‑award‑winning Chord Electronics Choral family has never sounded better. Say hello to the 150‑watt Class AB Chord Electronics Étude Stereo power amplifier that introduces the first fundamentally new Chord topology since the company began in 1989. Drawing on advanced technologies more commonly found in the aerospace world, Étude brings a fresh level of precision and musicality to the Choral range.

Designed to complement—and fully exploit—the capabilities of the acclaimed DAVE DAC/preamp, the Chord Electronics Étude Stereo power amplifier delivers astonishing speed, dynamic expression, and lifelike transient detail. Its brand‑new topology offers even faster power delivery than previous designs, giving you effortless control over loudspeaker drive units and a sense of realism that makes every performance feel alive in the room.

At the heart of the Chord Electronics Étude Stereo power amplifier is a sophisticated multi‑feedback and dual feed‑forward error‑correction architecture. This intelligent system continuously adjusts and compensates for the individual linearity of the 250‑watt lateral‑structure, high‑power proprietary MOSFETs. Inside, three high‑frequency switch‑mode power supplies—one for each active power rail and another for the auxiliary rails—ensure exceptional stability and responsiveness. Combined with advanced internal shielding, an actively cooled plenum‑chamber design, and custom Chord Electronics MOSFETs, Étude becomes a world‑class amplifier: extremely fast, crystal‑clear, and effortlessly controlled.

Although conservatively rated at 150W into 4Ω in stereo mode, Étude can be run in bridged mono to deliver a commanding 300W into 4Ω ideal for systems that demand even more authority.

This is Étude, presented the Home Media way: cutting‑edge engineering, musical honesty, and performance that simply invites you to keep listening.

Features

Class AB Sliding Bias
HF Switch Mode Power Supply
Chord MOSFET Construction
Fully Balanced Circuitry
Fan Cooled
Stereo Balanced XLR Inputs
Stereo Unbalanced RCA Inputs
Solid Aluminium Chassis
Bridgeable to 300w – 4Ω

Technical Specifications

Output Power: 150w RMS per channel @ 0.05% distortion into 4Ω
Power consumption: 300 W
Frequency Range: 5Hz – 120kHz +/- 0.5dB
Gain: 30dB
Channel Separation: Better than 95dB
Input Impedance: 100kΩ Unbalanced/Balanced
Input Capacitance: <30pf
Output Impedance: 0.02Ω
Output Inductance: 2.6μH
Dimensions: 6.7cm (H) 33.5cm (W) 17.5 (D)