Elegance. Finesse. Resolution. Grace. 

If ever Aristotle’s adage: “the whole is greater than the sum of its parts” is applicable in audio, it applies to AP20. And, given the quality and quantity of parts in this equation, that’s saying a lot.

AP20 delivers unprecedented audio performance from an integrated amplifier. It includes the world’s best Class D amp modules in a dual-mono configuration, an analog R2R relay-based volume control and preamp section, Aurender’s best DAC, a master clock input, a headphone output, a suite of digital and analog inputs and outputs, and the most sophisticated linear power supply block Aurender has ever deployed.

The result? An audio component that paints every musical timbre with full-bodied realism. With a delicate touch that’s backed up by enormous headroom for transients and dynamic swings, AP20 drives even the most demanding speaker loads and casts a soundstage that is both expansive and laser-focused.

All of this performance, with the heart of an Aurender.

Other integrated amplifier solutions on the market may offer support for app-controlled streaming, but in nearly every case, the user experience, library management, and software playback engine are an afterthought requiring third-party software and hardware to get the job done. In AP20’s case, more than 10 years of industry-leading experience has made Aurender the digital source component of choice in the world’s finest audio systems. Now, that same holistic digital playback engine and user experience is available from an integrated amplifier that completely removes the need for more components and cables.

Just add speakers, and enjoy a premium HiFi experience, without all the HiFi boxes. 

优雅。精致。解析度。优雅。

如果亚里士多德的格言“整体大于部分之和”适用于音频，那么它适用于 AP20。考虑到这个等式中各部分的质量和数量，这意义重大。

AP20 通过集成放大器提供前所未有的音频性能。它包括世界上最好的双单声道配置的 D 类放大器模块、基于模拟 R2R 继电器的音量控制和前置放大器部分、Aurender 最好的 DAC、主时钟输入、耳机输出、一套数字和模拟输入和输出，以及 Aurender 部署过的最先进的线性电源块。

结果？一个音频组件，以饱满的真实感描绘出每一个音乐音色。凭借细腻的触感以及巨大的瞬态和动态摆动余量，AP20 甚至可以驱动最苛刻的扬声器负载，并投射出既广阔又激光聚焦的声场。

所有这些性能，都源自 Aurender 的核心。

市场上的其他集成放大器解决方案可能支持应用程序控制的流媒体，但在几乎所有情况下，用户体验、库管理和软件播放引擎都是事后考虑，需要第三方软件和硬件来完成工作。就 AP20 而言，超过 10 年的行业领先经验使 Aurender 成为全球最优质音频系统的首选数字源组件。现在，集成放大器可提供相同的整体数字播放引擎和用户体验，完全无需更多组件和电缆。

只需添加扬声器，即可享受优质的 HiFi 体验，而无需所有 HiFi 盒。

Key Features

主要特点

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.

超高性能 D 类放大器

有 D 类放大器，还有超棒的 D 类放大器。AP20 采用市面上最优质的放大器模块。Purifi Eigentakt 1ET400A 放大器由著名工程师 Bruno Putzeys 设计，没有数字刺耳、尖锐和颗粒感。AP20 的双单声道放大器部分具有令人印象深刻的规格，反映在其非凡的音频性能中，代表了 D 类放大器技术的最新水平。

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.

静音线性电源

大多数 D 类放大器都采用开关模式电源，因为它们高效、运行温度低且价格低廉。然而，这会给信号路径带来噪音和失真，导致音频呈现缺乏自然模拟优雅感。因此，AP20 以典型的 Aurender 方式使用六个离散环形变压器分别为 CPU、左右 DAC 板、FPGA 处理器和功率输出级供电。

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.

Aurender 的最佳 DAC

Aurender 为那些追求一体式设备的简单性而不牺牲高水平分辨率、透明度和内部细节的人设计了 AP20。AP20 以集成双单声道 AKM4497 DAC 模块为基础构建，其一流的 DAC 部分可提供最高水平的高分辨率 PCM、DSD 和 MQA 完整解码。

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.

模拟音量控制

在任何系统中，前置放大器的音量控制机制都会对音频呈现的质量产生重大影响。值得注意的是，AP20 采用基于 R2R 步进衰减器系统的模拟域音量控制。这种质量的音量控制在配备数字设备的集成放大器中极为罕见，这也是 AP20 提供如此自然、开放的声音的主要原因。

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.

OCXO 精密时钟

AP20 的基于 OCXO 的精密时钟生成系统结合了现场可编程门阵列 (FPGA) 和低于 100fs 抖动减少时钟发生器，可精确计时数字音频数据传输并将抖动降至可忽略不计的水平。

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.

模拟直通输入

AP20 提供一套模拟输入，包括 1 个平衡 XLR 和 2 个单端 RCA，为将外部模拟源集成到音频系统提供了理想的解决方案。黑胶唱片爱好者可以将他们的唱机放大器连接到可用的模拟输入，并享受纯模拟直通，而无需在信号路径中进行任何 A/D 转换。

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.

数字连接

AP20 配备多种数字输入，包括 1X RCA SPDIF、1X BNC SPDIF 和 2X TOSLINK 光纤接口，能够通过其卓越的内部 DAC 呈现外部数字源，例如 CD 传输器、媒体播放器或电视。

Auxiliary XLR Output

AP20’s high-quality balanced XLR output allows the user to feed subwoofers with line-level input (XLR-to-RCA adapters may be required in some cases).
Users are supposed to select the “XLR + Speaker” option in the Aurender app, which enables both XLR and speaker outputs simultaneously to augment bass.

辅助 XLR 输出

AP20 的高品质平衡 XLR 输出允许用户使用线路电平输入为低音炮供电（在某些情况下可能需要 XLR 转 RCA 适配器）。
用户应在 Aurender 应用程序中选择“XLR + 扬声器”选项，该选项可同时启用 XLR 和扬声器输出以增强低音。

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.

主时钟输入

尽管 AP20 配备了极其精确的 OCXO 时钟系统，但通过连接 10MHz 主时钟信号发生器（例如 Aurender 的 MC10），可以进一步减少抖动。

Dedicated Headphone Section

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

专用耳机部分

除了作为扬声器系统的出色放大器之外，AP20 还具有 1/4 英寸耳机输出，让您享受安静时刻。

Physical Specifications

Dimensions : 16.93″W x 14.2″D x 5.9″H
Weight : 57.3 lb
Material : Machined Aluminum Chassis
Front Panel Display : 8.8″ 1920 x 480 Wide IPS Color LCD

物理规格

尺寸：16.93 英寸宽 x 14.2 英寸深 x 5.9 英寸高
重量：57.3 磅
材质：机加工铝制底盘
前面板显示屏：8.8 英寸 1920 x 480 宽 IPS 彩色 LCD

Technical Specifications

Power Supply : Full Linear, 2x 400VA Toroidy Transformers (L&R Power Amp), 2x 50W (L&R Audio Boards), 1x50W (CPU), 1x25W (FPGA)
CPU : Intel Low Power Quad Core
RAM : 8GB
Library Storage Capacity : 2X 2.5″ Compartments (User-Installable Storage)
SSD for System & Cache : 480GB NVME
Data USB Ports : 2X USB 3.0 (Rear)
Software Suite : Aurender Conductor
Ethernet Port : Double-Isolated Gigabit LAN
Uninterruptible Power Supply (UPS) : Yes (Super Capacitors)
Power Consumption : Play (47W), Peak (80W), Standby (6W)
CD Ripping Capability : N/A

技术规格

电源：全线性，2x 400VA 环形变压器（L&R 功率放大器），2x 50W（L&R 音频板），1x50W（CPU），1x25W（FPGA）
CPU：英特尔低功耗四核
RAM：8GB
库存储容量：2X 2.5 英寸隔间（用户可安装存储）
系统和缓存的 SSD：480GB NVME
数据 USB 端口：2X USB 3.0（后置）
软件套件：Aurender Conductor
以太网端口：双隔离千兆 LAN
不间断电源 (UPS)：是（超级电容器）
功耗：播放（47W）、峰值（80W）、待机（6W）
CD 翻录能力：N/A

Audio Specifications

Volume Control : Relay-Based R2R Stereo Attenuator -64dB ~ 0dB., Velocity Sensitive Operation
Analog Outputs : XLR (Balanced)
DAC Chipset : AKM 4497 – Dual-Mono
Audio Word Clock : OCXO
Analog Outputs Supported Format : PCM: Up to 32-bit / 768 kHz; DSD: Up to DSD512
Digital Outputs : N/A
SPDIF & AES/EBU Output Supported Format : N/A
Digital Inputs : 1X Coax RCA, 1X Coax BNC, 2X Optical/Toslink
Headphone Section : 1 x 1/4″ (6.5mm) Unbalanced
MQA Support : MQA Full-Decoder On Board
Compatible Formats : DSD (DSF, DFF), WAV, FLAC, AIFF, ALAC, M4A, APE and others
DSD-to-PCM Conversion : N/A

音频规格

音量控制：基于继电器的 R2R 立体声衰减器 -64dB ~ 0dB，速度敏感操作

模拟输出：XLR（平衡）

DAC 芯片组：AKM 4497 – 双单声道

音频字时钟：OCXO

模拟输出支持格式：PCM：最高 32 位/768 kHz； DSD：最高可达 DSD512
数字输出：N/A
SPDIF 和 AES/EBU 输出支持格式：N/A
数字输入：1X 同轴 RCA、1X 同轴 BNC、2X 光纤/Toslink
耳机部分：1 x 1/4 英寸 (6.5 毫米) 非平衡
MQA 支持：板载 MQA 全解码器
兼容格式：DSD (DSF、DFF)、WAV、FLAC、AIFF、ALAC、M4A、APE 等
DSD 到 PCM 转换：N/A

Amplifier Specifications

Amplifier Module : 2x Purifi 1ET400A Class D Amplifier Module in Dual-Mono Configuration
Rated Power Output : 200 W into 8 ohms / 350 W into 4 ohms
THD (20Hz-20kHz) : 0.003 % (1W to 200 W, 8 ohms and 4 ohms)
Damping Factor : 800 (ref. 8Ω 20 Hz to 6.5 kHz)
Output Impedance : <65μΩ @ 1kHz
Power Configuration : Full linear & Dual-Mono – 2 x 400VA Audio grade Toroidy toroidal transformers
Power Supply Filter Capacitors : Total 80,000uF ( 40,000 uF / channel)
Binding Posts : WBT nextgen™ pole terminal – Signal conductor made of pure copper

放大器规格

放大器模块：2x Purifi 1ET400A 双单声道配置 D 类放大器模块
额定功率输出：200 W 至 8 欧姆/350 W 至 4 欧姆
THD（20Hz-20kHz）：0.003%（1W 至 200 W，8 欧姆和 4 欧姆）
阻尼系数：800（参考 8Ω 20 Hz 至 6.5 kHz）
输出阻抗：<65μΩ @ 1kHz
电源配置：全线性和双单声道 - 2 x 400VA 音频级环形变压器
电源滤波电容器：总计 80,000uF（40,000 uF/通道）
接线柱：WBT nextgen™ 极端子 - 纯铜制成的信号导体