Sonnet Digital
Product Information
Sonnet Digital Audio
Sonnet & Critical Sell Out
Next availability February 2020
New Era of R2R NOS D/A Conversion from Cees Ruijtenberg
Morpheous Variable Voltage Gain NOS DAC
$5,995
Following the buy-out of Metrum Acoustics in mid-2018, a new direction for Dac development from Mr. R. has emerged mid-2019 - with the formation of Sonnet Digital Audio … and new (and old) business partner Lion Kwaaijtaal.
A decade ago Cees introduced the Duo & then Quad “NOS mini Dacs”. Duo featured two ‘undisclosed’ D/A chipsets. Model progression thereafter followed a theme … doubling up chipsets at each level – with particular attention paid to power supply. But there was a limitation – size, weight & cost e.g. 2 x "Hex" NOS DAC.
5 years later, the introduction of new proprietary D/A technology took this theme one step further … history “here”.
Not wishing to rest on his Digital laurels, SDA was established 2019 to enable continuing DAC improvement … in line with his own design & business principles.
Digital progress continues and now culminates in the above SDA Conversion Module - which carries on the tradition of NOS principles, no filtering and no output stage. The converters themselves provide power direct to output connections. The new Module continues the 'theme' of increasing D/A processing power and complete circuitry redesign.
Motherboard features four vertical slots which carry a new generation of Converters. Four modules replace the eight modules of previous models. A horizontal slot allows for either a DSP section or MQA for example. An Up-sampling module option was being considered but after experimentation rejected. It does after all defeat the purpose of Non-Over-Sampling - (listening) and in the Lab shown to be - Non Productive. In the photo Gallery test results indicate why (impulse responses).
We have the green light
No point designing multiple Digital input sections for various models. Module below has six inputs. Two Coax connections, one AES/EBU, one Optical and two I2S inputs.
A new range of Audio products from the house of Acelec Engineering.
In 2020 a complete Acelec Audio Chain will evolve :
Streamer - Digital Conversion - Voltage Gain - Active Monitors
Streamer - Digital Conversion - Power Drive - Passive Monitors
MORPHEOUS √
"Manual & Introduction"
Srajan Ebean at 6 Moons provides some background Info re Cees' developments & Morpheous Variable Voltage Gain DAC.
Available end of Nov ... as always ... 'good things take time'.
KRATOS
Mono Bloc Power Amplifiers
On the drawing Board
HERMES
Not a Dac but a Music Server.
Perhaps 'Messenger' of Music more appropriate ... rather than the Gods
The Heart of its Power being ?
... more to come.
More soon ...
Why no Up-sampling ? Following Pics indicate Lab results during testing - things get wobbly !
