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Jeff Rowland Aeris DAC

Jeff Rowland Aeris DAC

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(08) 7130 0148

The Aeris is the product of a close collaboration between Jeff Rowland Design Group and Holm Acoustics, a Danish company founded by Thomas Holm that specializes in signal processing products for high end audio applications.

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The Aeris is much more than the successful result of a synergistic collaboration between the two companies. The high degree of complementary synergy between the two teams working in parallel can only be defined as a case of true organic design.

Features

IsoSync ECS

Isolated Synchronous Error Correction System. Based upon an asynchronous buffer, voltage controlled crystal oscillators, and a 24 bit D/A converter – all under the precise control of an FPGA (Field Programmable Gate Array) running proprietary algorithms.

Bit Perfect and Virtually Jitter Free

Bit perfect conversion with total jitter output noise of less than 10 picoseconds RMS from any input – USB, TOSLINK, and SPDIF.

Multi-Stage Isolated Power Supply

Main power supply is isolated inside an external machined aluminum chassis. Eleven precision high-speed regulators provide low impedance and low noise “point of load” DC current to all analogue and digital circuits.

Isolated Audio and Digital Circuitry

Left and right channel audio output circuits, digital processing, and D/A conversion circuits are isolated within individual milled aluminum pockets resulting in exceptional EMI shielding, and thermal stabilization.

Volume Control

Wide range level control of outputs permit direct connection to power amplifiers.

Driver-Free Operation

The USB interface requires no additional drivers to install or maintain/update.

Cross-Platform

The USB interface is plug-n-play with all operating systems, including PC, Mac, or Linux.

Machined Aluminum Chassis

Precision-machined chassis milled from a solid block of aircraft grade 6061-T6 aluminum, provides exceptional thermal stability, RFI/EMI shielding, and resonance control.

6-Layer Circuit Board

Multi-layer circuit boards provide extremely low impedance ground and power distribution for remarkably low digital noise contamination.

High-Precision Surface Mounted Components

Extensive use of Lead (Pb)-free, low temperature coefficient, active and passive surface-mount components results in significantly smaller loop areas, reduced circuit capacitance and inductance, and introduces less noise than conventional leaded components.

Transformer Coupled Outputs

Transformer balanced XLR line outputs provide outstanding output common-mode noise rejection, eliminate potential ground loops, and ensure compatibility with other equipment.

Output Connections

Rhodium / Teflon Cardas output connectors for both balanced and unbalanced outputs preserve maximum audio signal integrity.

Remote Control

Allows remote control of volume, mute, standby, and input selection.

 

Specifications

Inputs 1x USB — accepts up to 24 bit PCM at 44.1, 48, 88.2, and 96 kHz sample rates
1x Toslink — accepts up to 24 bit PCM from 11 – 192 kHz sample rates
2x SPDIF — accepts up to 24 bit PCM from 11 – 192 kHz sample rates
Outputs 1 pair balanced XLR and 1 pair unbalanced RCA
7 volts RMS max output level
Volume Control Dual-stage attenuation
70 dB range, plus 20 dB overdrive
Software/Drivers No special drivers necessary
USB interface is plug-n-play with all operating systems, including PC, Mac, or Linux.
Clocks 20 bit dynamic range Voltage Controlled Crystal Oscillators (VCXO)
44.1 kHz and 48 kHz < 1 picosecond RMS jitter
D/A Converter Differential output
352.8 kHz, 24 bit
Digital Filter Finite Impulse Response (FIR) symetrical
Flat phase and group delay
THD+N Analogue outputs
< 0.0006%
Output Impedance RCA / XLR
120 ohms
DAC and Power Supply Weight 24.4 lb / 11kg
Dimensions 2.4″ x 15.5″ x 11.6″
61mm x 394mm x 294mm

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