Emotiva's DR Stack Puts a Balanced Preamp, NCOREx Power Amp, DAC and Streamer Into Four 267mm Boxes From £740 Each

Emotiva has announced a four-box "Differential Reference" range — informally dubbed the DR Stack — that squeezes a fully balanced preamplifier, power amplifier, DAC and streamer into matching chassis just 267mm wide, roughly two-thirds the width of a standard hi-fi component. The range is aimed squarely at buyers who want real separates rather than an all-in-one streaming amp, but who don't have the shelf space or budget that traditionally implies.

The four components are the DRP-1 preamplifier, DRA-1 power amplifier, DRD-1 DAC and DRS-1 streamer/DAC. UK prices range from £740 to £850 each, inclusive of VAT, putting a complete four-box stack at £3,180. The range arrives in the UK in August 2026 through distributor Karma-AV. No pricing has been announced for markets outside the UK.

Four boxes, one balanced signal path

The core idea is that the entire signal chain, from input to speaker terminals, stays fully balanced and differential. That's the "Differential Reference" name, and it's carried through all four units rather than being reserved for a flagship preamp or amplifier alone.

The DRP-1 preamplifier (£740) uses a studio-grade resistor-ladder volume control with sealed relay switching in place of a conventional potentiometer. Inputs cover two RCA pairs, a balanced XLR input, and a stereo unbalanced phono stage that's switchable between MM and MC cartridges. Outputs include RCA, balanced XLR, and a summed XLR subwoofer output, with internal bass management fixed at 80Hz. It ships with a full-function metal remote.

The DRA-1 power amplifier (£850) is built around Hypex NCOREx Class D amplifier modules. Emotiva quotes 100 watts per channel into 8 ohms and 130W per channel into 4 ohms, with the option to bridge the amp into a 400W monoblock into 4 ohms. Signal-to-noise ratio is quoted above 115dB and THD+N below 0.008%. It has both RCA and XLR inputs, plus five-way binding posts for speaker connections.

The DRD-1 DAC (£740) is built on an ESS ES9038Q2M SABRE32 Reference converter, handling PCM up to 768kHz along with DoP256 and native DSD512. A Comtrue CT7601 interface handles USB-C input, and the unit offers selectable digital filters. Outputs are fixed-level RCA and XLR, plus an HDMI-ARC connection for pulling audio from a television. It also ships with a metal remote.

The DRS-1 streamer/DAC (£850) shares the same ES9038Q2M converter as the DRD-1 and adds a lifetime Volumio Premium licence. It supports Qobuz Connect, TIDAL Connect, Spotify Connect and internet radio, and can sync playback across up to six rooms via Volumio's multiroom features. Connectivity runs to balanced XLR and RCA outputs, Toslink, coaxial, Ethernet, Wi-Fi, two USB-A ports and HDMI, covering most of what a modern streaming setup needs on the network and file-playback side.

A shared design language, and a practical trick

All four units share the same 267mm-wide steel chassis and black anodised aluminium faceplate, with a fully dimmable blue OLED display common to the range. No height or depth dimensions have been published, but the shared width means the four boxes stack neatly regardless of which combination a buyer chooses.

The more useful shared feature may be the 12V trigger inputs and outputs fitted to every unit, letting the whole stack power up and down together from a single source — a detail that matters more than it sounds once you're dealing with four separate boxes instead of one integrated unit. It's the kind of practical concession that makes a multi-box system livable in a system that might otherwise favour a single streaming amplifier for its simplicity.

Why a four-box system now

The wider hi-fi market has spent the last several years pushing buyers, especially those in smaller rooms, toward single-box streaming amplifiers that combine DAC, amplification and network streaming in one enclosure. Emotiva's DR Stack argues the opposite case: that a properly separated system — with its own balanced preamp, dedicated power amplifier, and interchangeable DAC or streaming source — doesn't have to mean large components or a four-figure entry price per box.

The range is also built to scale. A buyer could start with just the DRP-1 preamp and DRA-1 amplifier as a compact two-box system, add phono playback for free since it's built into the preamp, and bring in the DRD-1 or DRS-1 later as a source. Anyone wanting more power down the line could bridge a second DRA-1 into monoblock configuration for 400W into 4 ohms, rather than needing to replace the amplifier outright.

Both HiFi Pig and StereoNET, reporting the launch on the same day, agree on all four components' specifications and pricing, with one minor discrepancy: HiFi Pig's coverage lists Bluetooth among the DRS-1's connectivity options, while StereoNET's list omits it. Given the disagreement, the streamer's confirmed strength is better summarised as its wired and Wi-Fi network streaming — Qobuz Connect, TIDAL Connect, Spotify Connect, internet radio and multiroom sync via Volumio — rather than any Bluetooth claim.

No listening impressions have been published by either outlet, and neither source suggests the DR Stack replaces or supersedes any existing Emotiva range. For now, the story is squarely about specification and footprint: a fully balanced four-box separates system that fits where a single streaming amplifier might otherwise have gone, arriving in the UK in August 2026 through Karma-AV.

This article was written by an AI system from Into The HiFi AI Desk, generated from the following sources, with no human editing pass before publication: HiFi Pig, "Emotiva DR Stack Compact Separates", StereoNET, "Emotiva DR Stack Brings Big Hi-Fi Performance to Smaller Spaces".