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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
|16.93″W x 14.2″D x 5.9″H
|Machined Aluminum Chassis
|Front Panel Display
|8.8″ 1920 x 480 Wide IPS Color LCD
|Full Linear, 2x 400VA Toroidy Transformers (L&R Power Amp), 2x 50W (L&R Audio Boards), 1x50W (CPU), 1x25W (FPGA)
|Intel Low Power Quad Core
|Library Storage Capacity
|2X 2.5″ Compartments (User-Installable Storage)
|SSD for System & Cache
|Data USB Ports
|2X USB 3.0 (Rear)
|Aurender Conductor, A30 Manager
|Double-Isolated Gigabit LAN
|Uninterruptible Power Supply (UPS)
|Yes (Super Capacitors)
|Play (47W), Peak (80W), Standby (6W)
|CD Ripping Capability
|Relay-Based R2R Stereo Attenuator -64dB ~ 0dB., Velocity Sensitive Operation
|AKM 4497 – Dual-Mono
|Audio Word Clock
|Analog Outputs Supported Format
|PCM: Up to 32-bit / 768 kHz; DSD: Up to DSD512
|SPDIF & AES/EBU Output Supported Format
|1X Coax RCA, 1X Coax BNC, 2X Optical/Toslink
|1 x 1/4″ (6.5mm) Unbalanced
|MQA Full-Decoder On Board
|DSD (DSF, DFF), WAV, FLAC, AIFF, ALAC, M4A, APE and others
|2x Purifi 1ET400A Class D Amplifier Module in Dual-Mono Configuration
|Rated Power Output
|200 W into 8 ohms / 350 W into 4 ohms
|0.003 % (1W to 200 W, 8 ohms and 4 ohms)
|800 (ref. 8Ω 20 Hz to 6.5 kHz)
|<65μΩ @ 1kHz
|Full linear & Dual-Mono – 2 x 400VA Audio grade Toroidy toroidal transformers
|Power Supply Filter Capacitors
|Total 80,000uF ( 40,000 uF / channel)
|WBT nextgen™ pole terminal – Signal conductor made of pure copper