Audiolab D7 Digital-to-Analog Converter

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Audiolab D7 Digital-to-Analog Converter at Vinyl Sound Buffalo, NY The Audiolab D7 is a compact standalone digital-to-analogue converter and headphone amplifier from Audiolab (Camb ridge, United Kingdom), available at Vinyl Sound in Buffalo, New York. Continuing the lineage of the legendary M-DAC — Audiolab's groundbreaking 2011 standalone DAC — the D7 houses the ESS ES9038Q2M 32-bit DAC with a Class A post-DAC active filter, a proprietary low-noise power supply, full MQA decoding, and Roon Tested certification in a compact aluminium chassis measuring just 180 x 56 x 208mm. It supports PCM to 32-bit/768kHz and native DSD512 via USB-B, with five selectable digital filters and optional upsampling to 352.8kHz or 384kHz. Balanced XLR (4.1Vrms) and unbalanced RCA (2.05Vrms) analogue outputs, coaxial and optical digital outputs, and a high-power current-feedback headphone amplifier (500mW into 33 ohms, 20-600 ohm compatible) give the D7 a role as a DAC, preamplifier, and headphone amplifier in one chassis — awarded Five Stars by What Hi-Fi? in December 2025. ES9038Q2M DAC, Class A Post-DAC Filter, and Proprietary Power Supply The D7's digital conversion is built around the ESS ES9038Q2M — the same 32-bit Sabre DAC chip used in the Audiolab 7000A and 6000A MkII integrated amplifiers — but in the D7 it is given its own dedicated clock circuit, a proprietary low-noise power supply isolated from the digital input stages, and a Class A post-DAC active filter circuit. This implementation mirrors the approach taken across Audiolab's 9000 and 7000 Series amplifiers and reflects years of accumulated engineering experience with ESS Technology's Sabre DAC platform. The USB-B asynchronous input handles PCM at up to 32-bit/768kHz and native DSD64, DSD128, DSD256, and DSD512 (22.5MHz). The four S/PDIF digital inputs — two coaxial and two optical — handle PCM up to 24-bit/192kHz. A USB-A input enables playback directly from USB flash drives and storage devices in MP3, WMA, APE, AAC, WAV, and FLAC formats up to 24-bit/96kHz. Full certified MQA decoding performs the complete three-stage unfolding process internally via the USB-B, coaxial, and optical inputs. Roon Tested certification confirms the D7 as a verified USB DAC endpoint within the Roon ecosystem. Five user-selectable digital reconstruction filter settings allow adjustment of the DAC's frequency response, and an optional upsampling stage converts incoming digital streams to 352.8kHz or 384kHz before conversion, disabling the standard DAC filter. Balanced XLR Output, Fixed or Variable Modes, Headphone Amplifier, and System Flexibility The D7's analogue output section provides both a balanced XLR stereo pair (4.1Vrms) and an unbalanced RCA stereo pair (2.05Vrms), with either output selectable between fixed-level and variable modes. Fixed mode connects to an integrated amplifier's or preamplifier's line input at a constant level, with the connected component's volume control governing level. Variable mode uses the D7's own volume control, enabling direct connection to a power amplifier or active speakers — effectively making the D7 a streaming preamplifier in that configuration. Both analogue outputs, coaxial digital output, and optical digital output are available simultaneously. The headphone amplifier uses current-feedback circuitry with wide bandwidth and high slew rate, delivering 500mW into 33 ohms and up to 4.8Vrms of output voltage, with a 2.35-ohm output impedance compatible with headphone loads from 20 to 600 ohms. Bluetooth 5.1 with aptX and aptX HD provides wireless streaming from smartphones, tablets, and laptops directly into the D7's DAC and output stages. Two 12V trigger outputs enable power sequencing with compatible downstream components. The OLED display shows input selection, format, sampling rate, and filter setting, and the D7 ships with a full remote control for complete system operation from the listening position. Key Features ESS ES9038Q2M 32-Bit DAC with Class A Post-DAC Filter: Same chip as the 7000A and 6000A MkII, implemented with its own dedicated clock, isolated proprietary power supply, and a Class A active filter circuit. PCM to 32-Bit/768kHz and Native DSD512 via USB-B: Full hi-res PCM support alongside DSD64, DSD128, DSD256, and DSD512 (22.5MHz) natively from the asynchronous USB-B input. Full Certified MQA Decoding: Complete three-stage internal MQA decoding via USB-B, coaxial, and optical inputs, with no external renderer required. Roon Tested: Verified USB DAC endpoint compatibility within the Roon ecosystem. Balanced XLR Output (4.1Vrms): True balanced analogue output alongside unbalanced RCA (2.05Vrms), with both available in fixed or variable modes. High-Power Current-Feedback Headphone Amplifier: Delivers 500mW into 33 ohms, with a 2.35-ohm output impedance compatible with loads from 20 to 600 ohms for demanding headphones. Five Digital Filters plus Upsampling: Five reconstruction filter settings and optional upsampling to 352.8kHz or 384kHz for source-specific and system-specific adjustment. Four S/PDIF Digital Inputs: Two coaxial and two optical, each handling PCM up to 24-bit/192kHz, for CD transports, streamers, and digital sources. USB-A Storage Playback: Direct file playback from USB flash drives in MP3, WMA, APE, AAC, WAV, and FLAC up to 24-bit/96kHz. Bluetooth 5.1 with aptX HD: High-resolution wireless streaming from mobile devices directly through the D7's DAC stage. Coaxial and Optical Digital Outputs: For connection to a secondary DAC or AV receiver, enabling the D7 to serve as a digital hub or distribution point. OLED Display and Full Remote Control: Input, format, sampling rate, and filter information at a glance, with complete remote operation. Compact Aluminium Chassis: 180 x 56 x 208mm form factor designed to match the Audiolab 6000 and 7000 Series aesthetically in Black or Silver finish. Technical Specifications Type Digital-to-Analogue Converter / DAC Preamplifier / Headphone Amplifier DAC Chip ESS ES9038Q2M 32-bit (2-channel Sabre) DAC THD < 0.001% (1kHz @ 0dBFS) DAC SNR > 115dB (RCA, A-weighted); > 117dB (XLR, A-weighted) Output Level (0dBFS, 1kHz) 2.05Vrms (RCA); 4.1Vrms (XLR) Output Mode Fixed or Variable (user selectable) Analogue Outputs 1 x Stereo XLR (balanced); 1 x Stereo RCA (unbalanced) Digital Filters 5 selectable reconstruction filter settings Upsampling Optional to 352.8kHz or 384kHz MQA Full Certified MQA Decoder (3-stage unfold, via USB-B, Coaxial, Optical) Roon Roon Tested USB-B (PC) Input PCM to 32-bit/768kHz; DSD64, DSD128, DSD256, DSD512 (native) Coaxial / Optical (S/PDIF) Inputs Up to 24-bit/192kHz (x2 coaxial, x2 optical) USB-A (Storage) Input MP3, WMA, APE, AAC, WAV, FLAC (up to 24-bit/96kHz) Bluetooth Bluetooth 5.1 (aptX / aptX HD) Digital Outputs 1 x Coaxial S/PDIF; 1 x Optical TOSLINK Headphone Output 1 x 6.35mm Headphone THD < 0.01% (1kHz, 50mW) Headphone Output Impedance 2.35 ohms Headphone Load Impedance 20 - 600 ohms Headphone Output Power 500mW (into 33 ohms) Headphone Max Output Voltage 4.8Vrms Headphone Max Output Current 180mA Trigger Outputs 2 x 12V Trigger Display OLED (input, format, sampling rate, filter setting) Dimensions (W x H x D) 180 x 56 x 208 mm Net Weight 1.42 kg Finish Black / Silver Power Requirements 100-120V ~ 50/60Hz (US); 220-240V ~ 50/60Hz Connections at a Glance 1 x USB-B (PC/Mac/tablet, PCM to 768kHz / DSD512) 1 x USB-A (storage playback, MP3/WMA/APE/AAC/WAV/FLAC to 96kHz) 2 x S/PDIF Coaxial Digital Inputs (up to 24-bit/192kHz) 2 x S/PDIF Optical (TOSLINK) Digital Inputs (up to 24-bit/192kHz) 1 x Bluetooth 5.1 (aptX HD) 1 x Balanced XLR Stereo Analogue Output (4.1Vrms, fixed or variable) 1 x Unbalanced RCA Stereo Analogue Output (2.05Vrms, fixed or variable) 1 x Coaxial S/PDIF Digital Output 1 x Optical TOSLINK Digital Output 1 x Headphone Output (6.35mm, 20-600 ohm compatible) 2 x 12V Trigger Outputs What's in the Box Audiolab D7 Digital-to-Analog Converter Remote Control Power Supply (12V linear) User Manual Awards and Critical Recognition What Hi-Fi? Five Stars, December 2025 — reviewed by Ketan Bharadia; also selected as the best budget desktop DAC in What Hi-Fi?'s Best DACs guide, January 2026 Frequently Asked Questions What is the Audiolab D7? The Audiolab D7 is a compact standalone digital-to-analogue converter, preamplifier, and headphone amplifier from Audiolab (Cambridge, UK). It houses the ESS ES9038Q2M 32-bit DAC with a Class A post-DAC filter, full MQA decoding, Roon Tested certification, PCM to 32-bit/768kHz and DSD512 via USB-B, balanced XLR and unbalanced RCA outputs in fixed or variable modes, a 500mW current-feedback headphone amplifier, four S/PDIF digital inputs, Bluetooth 5.1 with aptX HD, five digital filters, and upsampling to 352.8kHz or 384kHz — all in a 180 x 56 x 208mm aluminium chassis weighing 1.42kg. It received Five Stars from What Hi-Fi? in December 2025. How does the Audiolab D7 compare to the iFi Zen DAC 3, Cambridge Audio DacMagic 200M, and Chord Mojo 2? The Audiolab D7 occupies a distinct position in the desktop DAC market through its combination of balanced XLR outputs and a full-sized headphone amplifier at its price. Against the iFi Zen DAC 3 (balanced output, Roon Tested, no S/PDIF digital inputs, no Bluetooth, no digital outputs), the D7 adds two coaxial and two optical digital inputs, Bluetooth 5.1 with aptX HD, coaxial and optical digital outputs, and USB-A storage playback — a substantially more complete input and output roster. Against the Cambridge Audio DacMagic 200M (balanced output, no headphone amp, no Bluetooth, no USB-A storage, MQA rendering only), the D7 adds a full MQA decoder rather than a renderer, a high-power headphone amplifier, Bluetooth, and USB-A playback. Against the Chord Mojo 2 (portable, no balanced output, no S/PDIF inputs, no Bluetooth, FPGA-based custom DAC), the D7 offers a desktop-friendly form factor, S/PDIF connectivity, balanced XLR output, Bluetooth 5.1, and the Roon Tested certification that the Mojo 2 carries in a very different use case profile. Can the Audiolab D7 be used as a preamplifier to drive a power amplifier directly? Yes. When the D7's analogue output is set to Variable mode, the unit's volume control governs the output level from both the balanced XLR and unbalanced RCA outputs. This allows the D7 to be connected directly to a power amplifier's inputs — such as the Audiolab 9000P — or to active powered speakers, with the D7 acting as the volume control for the system. In this configuration, the D7 functions as a DAC and streaming preamplifier in one chassis, handling source selection, digital conversion, and output level for all connected digital and Bluetooth sources. What is the difference between the Audiolab D7 and D9? The D9 is Audiolab's flagship standalone DAC, stepping up from the D7 in several key areas. The D9 uses the ES9038PRO eight-channel DAC — the same chip as the 9000A and 9000Q — which enables a fully balanced stereo signal path with greater channel separation and lower noise floor. The D9 adds an AES3/EBU digital input, LDAC Bluetooth support (alongside aptX HD), and a more sophisticated master clock implementation. The D9 is also housed in a larger chassis (315 x 88 x 277mm) with a screen display, matching the 9000 Series aesthetic rather than the 6000/7000 Series form factor of the D7. Both units share PCM to 768kHz/DSD512, full MQA decoding, five digital filters, upsampling, balanced XLR outputs, and current-feedback headphone amplification. Is the Audiolab D7 compatible with Roon? Yes. The D7 carries Roon Tested certification, confirming it has been verified by Roon Labs for use as a USB DAC endpoint. When connected via USB-B to a computer or dedicated Roon Core server, the D7 appears as an available audio output and receives PCM audio at up to 32-bit/768kHz. Roon's signal path indicators confirm the D7's MQA decoding capability when Roon is set to pass MQA content through to the unit for internal decoding. Does the Audiolab D7 support DSD playback? Yes, via the USB-B PC input. The D7 supports native DSD64, DSD128, DSD256, and DSD512 (22.5MHz) playback from a connected computer over USB-B, with DoP (DSD over PCM) also supported where applicable. DSD playback is not available from the S/PDIF coaxial or optical inputs, which handle PCM only up to 24-bit/192kHz, nor from the USB-A storage input, which is limited to 24-bit/96kHz PCM formats. Where can I buy the Audiolab D7 in Buffalo, NY or the United States? The Audiolab D7 is available at Vinyl Sound, an authorized Audiolab dealer in Buffalo, New York. Purchasing through an authorized dealer ensures full manufacturer warranty coverage, genuine product, and access to expert guidance from the Vinyl Sound team for system integration and pairing recommendations. Show more