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Aurender AP20

Sale price$22,000.00
The Aurender AP20 serves as an invaluable asset for audiophiles and music enthusiasts seeking the ultimate audio streaming and playback solution. This cutting-edge device seamlessly integrates high-resolution music streaming, advanced digital-to-analog conversion, and precise clocking technologies into a single, elegantly designed unit. The AP20 not only ensures the highest quality playback of your digital music collection but also offers a user-friendly interface for effortless navigation and control. With its robust connectivity options, including support for various streaming services and networked storage, the Aurender AP20 is a versatile and indispensable component for those who demand the best in audio reproduction, delivering a transformative listening experience that's second to none.


A premium Integrated Amplifier

Ultra High-Performance Class D Amplifiers

There’s Class D, and then there’s ridiculously good Class D. AP20 utilizes the finest amplifier modules available. Designed by renowned engineer Bruno Putzeys, the Purifi Eigentakt 1ET400A amplifier is free of digital harshness, edginess, and grain. Featuring impressive specifications that are reflected in its extraordinary audio performance, AP20’s dual-mono amplifier section represents the state-of-the-art of Class D amp technology.

Dead-Quiet Linear Power Supply

Most Class D amplifier implementations utilize switch mode power supplies because they are efficient, cool-running, and inexpensive. However, this can introduce noise and distortion to the signal path, resulting in an audio presentation that lacks a sense of natural analog grace. So, in typical Aurender fashion, AP20 uses SIX discrete toroidal transformers to power the CPU, left & right DAC boards, FPGA processor, and power output stages, respectively.

Aurender’s Best DAC

Aurender designed the AP20 for those seeking the simplicity of an all-in-one unit without sacrificing a high level of resolution, transparency, and inner detail. Built around an integrated dual-mono AKM4497 DAC module, AP20’s best-in-class DAC section delivers high-resolution PCM, DSD, and MQA full-decoding at the highest level.

Analog Volume Control

In any system, the quality of the audio presentation is significantly impacted by the volume control mechanism of the preamplifier. Remarkably, AP20 employs an analog-domain volume control based on an R2R stepped-attenuator system. Volume control of this quality is utterly uncommon in digitally-equipped integrated amps, and it is a major reason why AP20 provides such a natural, open sound.

Master Clock Input

Although AP20 is equipped with an extremely precise OCXO clock system, jitter can be minimized further by connecting a 10MHz Master Clock signal generator such as Aurender’s MC10.

Dedicated Headphone Section

In addition to being a stellar amplifier for loudspeaker systems, AP20 also features a 1/4″ headphone output for quiet

Physical Specifications

Dimensions16.93″W x 14.2″D x 5.9″H
Weight57.3 lb
MaterialMachined Aluminum Chassis
Front Panel Display8.8″ 1920 x 480 Wide IPS Color LCD

Technical Specifications

Power SupplyFull Linear, 2x 400VA Toroidy Transformers (L&R Power Amp), 2x 50W (L&R Audio Boards), 1x50W (CPU), 1x25W (FPGA)
CPUIntel Low Power Quad Core
Library Storage Capacity2X 2.5″ Compartments (User-Installable Storage)
SSD for System & Cache480GB NVME
Data USB Ports
2X USB 3.0 (Rear)
Software Suite
Aurender Conductor, A30 Manager
Ethernet Port
Double-Isolated Gigabit LAN
Uninterruptible Power Supply (UPS)
Yes (Super Capacitors)
Power Consumption
Play (47W), Peak (80W), Standby (6W)
CD Ripping Capability


Audio Specifications

Volume ControlRelay-Based R2R Stereo Attenuator -64dB ~ 0dB., Velocity Sensitive Operation
Analog OutputsXLR (Balanced)
DAC ChipsetAKM 4497 – Dual-Mono
Audio Word ClockOCXO
Analog Outputs Supported FormatPCM: Up to 32-bit / 768 kHz; DSD: Up to DSD512
Digital OutputsN/A
SPDIF & AES/EBU Output Supported FormatN/A
Digital Inputs1X Coax RCA, 1X Coax BNC, 2X Optical/Toslink
Headphone Section1 x 1/4″ (6.5mm) Unbalanced
MQA SupportMQA Full-Decoder On Board
Compatible FormatsDSD (DSF, DFF), WAV, FLAC, AIFF, ALAC, M4A, APE and others
DSD-to-PCM ConversionN/A

Amplifier Specifications

Amplifier Module2x Purifi 1ET400A Class D Amplifier Module in Dual-Mono Configuration
Rated Power Output200 W into 8 ohms / 350 W into 4 ohms
THD (20Hz-20kHz)0.003 % (1W to 200 W, 8 ohms and 4 ohms)
Damping Factor800 (ref. 8Ω 20 Hz to 6.5 kHz)
Output Impedance<65μΩ @ 1kHz
Power ConfigurationFull linear & Dual-Mono – 2 x 400VA Audio grade Toroidy toroidal transformers
Power Supply Filter CapacitorsTotal 80,000uF ( 40,000 uF / channel)
Binding PostsWBT nextgen™ pole terminal – Signal conductor made of pure copper

OCXO Precision Clock

AP20’s OCXO based precision clock generation system incorporates a Field-Programmable Gate Array (FPGA) with sub 100fs jitter-reducing clock generator to precisely time digital audio data transmissions and minimize jitter to below negligible levels.

Analog Pass-Through Inputs

The AP20 provides a suite of analog inputs including 1X balanced XLR and 2X single-ended RCA, offering an ideal solution for integrating external analog sources into your audio system. Vinyl enthusiasts can connect their phono stage to an available analog input and enjoy pure analog pass-through without any A/D conversion in the signal path.

Digital Connectivity

With a variety of digital inputs including 1X RCA SPDIF, 1X BNC SPDIF, and 2X TOSLINK optical interfaces, AP20 is well-equipped to render external digital sources such as a CD transport, media player, or TV via its superior internal DAC.

Variable Output XLR Output

AP20’s high-quality balanced XLR output allows the user to feed a second system such as a distributed whole-home audio installation, or subwoofer(s) with line-level input (XLR-to-RCA adapters may be required in some cases).


Reviews & References