Aurender AP20 Streaming Amplifier

Regular price $31,679.95

Taxes calculated at checkout.

inquiries please call (604) 351-3485

Aurender AP20

A reference-grade Integrated Amp, with the heart of an Aurender

An elegant one box solution for the purist

All the digital connectivity you need - Ethernet, 2 x TOSLINK, 2 x BNC, coaxial, 2 x USB

Reference grade internal D/A converter built around a pair of AKM4497 chips and a temperature-stabilised OXCO 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.” 

Also on the back panel are two empty HDD/SSD drive bays which effectively turn the AP20 into a music server with drive content navigable via the front panel display or associated smartphone/tablet app (that integrates Tidal and Qobuz). The AP20 also supports Apple AirPlay and Spotify Connect.

Vinyl purists would like the fact that signals arriving at the A20’s analogue inputs (balanced or single-ended) are not digitised upon entry. They follow the same all-analogue journey as those already processed by the DAC: specifically, an analogue R2R stepped-attenuator volume control and dual mono amplification with each amplifier channel enjoying its own toroidal supply.

In fact, a total of six discrete toroidal transformers power the CPU, left & right DAC boards, FPGA processor and amplifier modules. Those amp modules are Class D and come from Purifi: the Bruno Putzeys-designed Purifi 1ET400A that, implemented here, promise 350wpc into 4 Ohms or 200 WPC into 8 Ohms. 

A quarter-inch headphone socket and balanced XLR outputs – that effectively turn the AP20 into a pre-amplifier – round out the feature set.

Features:

  • Purifi 1ET400A Eigentakt dual-mono power amp modules pushing 200 WPC into 8Ω, 350 into 4Ω
  • Fully linear PSU block with exceptionally high-end discrete toroidal transformers (6 of them, actually!)
  • R2R stepped-attenuator analog volume control
  • Dual-Mono AKM4497 DAC boards
  • Precision OCXO rev 2 internal clock
  • Analog inputs with pure analog pass-through (hello, rosy tube phono stage )
  • Analog output (for subwoofer? secondary/distributed audio system?)
  • Digital inputs (coax & optical)
  • 2x User-Installable drive bays for SSD/HDD storage
  • 10 MHz Master Clock input

Specifications

  • Is a Streamer: ✅ Yes
  • DAC: (dual mono) AKM4497 ✅ Yes
  • Clock: OCXO V2 ✅ Yes
  • Bit Rate Capability: 32 bit/768 kHz 
  • Digital Inputs: opt (2), coax (2), USB B (2), Clock (1) ✅ Yes
  • HDMI ARC Input: ❌ No
  • Output: XLR audio, Speakers  ✅ 
  • Headphone Amp: 1/4" ✅ Yes
  • Variable Audio Out: ✅ Yes
  • Subwoofer Out: ❌ No
  • Roon Ready: ✅ Yes

Amplifier Specifications

  • Amplifier Module 2x Purifi 1ET400A Class D Amplifier Module in Dual-Mono Configuration
  • Rated Output Power 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

Audio Specifications

  • Volume Control - Relay-Based R2R Stereo Attenuator -64dB ~ 0dB., Velocity Sensitive Operation
  • Analog Outputs - XLR (Balanced)
  • Analog Inputs - 2 x Unbalanced (RCA)/1x Balanced (XLR)
  • DAC Chipset - AKM 4497 - Dual-Mono
  • Audio Word Clock - OCXO Rev2
  • Analog Outputs Supported Format PCM: Up to 32-bit / 768 kHz; DSD: Up to DSD512
  • Digital Outputs N/A
  • USB Output Supported Format 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
  • Master Clock Input - Coaxial BNC 75Ω - 10 MHz
  • 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

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)
  • CD Ripping Capability - N/A

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 

Audiofi is your Aurender dealer, we ship free in Canada