New Additions
Network Acoustics origin Hybrid Power Supply
(Powering the main Router)
Summary
This is an overview of the Main System and its operational components as of February 2026.
The main system is always assembled and is used for most private listening and reviews. This system consists of the CH Precision C1.2 DAC, L1 preamp, A1.5 power amp, Antipodes Oladra, Grimm MU1, and Taiko Audio Extreme music servers, and Refoiled Apogee Duetta Signature speakers with the latest-generation Graz DSB-KLM woofer foils and KLM7 MRTW foils, installed in August 2025.
Loudspeakers
The Apogee Duetta Signature ribbon speakers are permanently set up. They were refurbished and fitted with the latest-generation Graz DSB-KLM woofer foils and KLM7 MRTW foils in August 2025.
Digital Sources
Above: Antipodes Oladra Music Server
Above: Grimm MU1 Music Server
Analog Sources
Above: Thorens TD1601 with TP160 Tonearm and TAS1600 MC cartridge and Grimm Audio PW1 Phono Stage
Above: Thorens TD1601 with TP92 Tonearm and TAS1500 MC cartridge and Manunta EVO Phono 3
Above and below: Technics SL-1200G with Audio Technica AT-VM750SH MM cartridge and M2Tech Nash phono stage
Racks and Platforms
All CH Precision components are placed on an Artesania Exoteryc rack with Carbon Fiber Linear Arms. All digital sources are placed on two HRS EXR racks. Review components will be assessed on a vacant spot in one of the HRS EXR racks or on an Artesania KSH2 Krion shelf coupled via Artesania Carbon Fiber Linear arms to an Artesania Aire Floor Platform. In essence, the Aire is a lower Exoteryc rack, and it sounds identical. All racks have Artesania discs as floor interfaces, Panzerholz for Artesania, and Carbon Fiber for HRS.
Cables
The main digital AES/EBU interlink is the Network Acoustics muon2 Balanced Digital Cable. All analog interlinks are Driade Flow Link Reference 808, both balanced and unbalanced. The speaker cables are the Driade Flow Reference 808.
Power
The power for this system is delivered by a dedicated run of solid-core installation wire, sourced in the Breaker Box from a Siemens Sitor Cylindric Fuse Cartridge and ending in three GigaWatt G-044 single Schuko Wall Sockets behind the audio system. For the Network Switch, Music Servers, and some temporary equipment, I use two power distributors that started life as Pawalle TP-80s but are used only for the enclosures, stripped of all internals and everything replaced with selected wiring and components. The rest of the system is powered directly from a PS Audio Power Plant P20 power generator.
Above: PS Audio P20 Power Plant (a Power Regenerator, not a filter), powering the entire system except for the Network Switch and Music Servers.
Power Cables
The power cables are a mix of brands and OEM home-made specimens. The GigaWatt LC-2 EVO is permanently used with the CH C1.2 DAC, and the GigaWatt LC-2 EVO is permanently used with the CH L1 preamp. The CH A1.5 power amp is the only component still using a Belden 19364 power cable. The Network Switches and specific temporary digital components are powered using home-made cables based on Block CUL 500 Enamelled solid core copper in PTFE tubing with OEM Rhodium schuko and Oyaide 004 IEC. The other permanent components are powered using home-made cables consisting of OEM tinned litze in PTFE dielectric with OEM Rhodium-plated schuko and Oyaide 004 IEC. Review components are assessed using the best cables for the given product.
Network
Above: Silent Angel Bonn NX Network Switch and Genesis GX Clock
Above: Network Acoustics origin Power Supply (for the main Router)
Room Impressions
Above: Curved CD racks conceal cornered wall-stiffening bars and a bass trap in the hallway.
Above: Left side of the room
Above: R.T.F.S Big Block Bass Traps in the rear corner
Steel-reinforced ed much of the right speaker’s low output and ed very annoying phase
Above and below: Vicoustic VicTotem Diffuser/Bass Trap
Main System Components
This list contains only the currently operational components in the Main System. For a complete list of all HFA Reference Equipment, cables, and accessories, see Associated Equipment.
Loudspeakers
Apogee Duetta Signature (with latest-gen Graz DSB-KLM woofer foils and KLM7 MRTW foils installed August 2025)
Pre Amplifier
Power Amplifier
Phono Stage
Grimm Audio PW1
M2Tech Nash
Manunta EVO Phono 3
Turntables
Thorens TD1601 (with TP-92 tonearm)
Thorens TD1601 (with TP-160 tonearm)
Technics SL-1200G
Cartridges/Stylii
Thorens TAS1600
Thorens TAS1500
Goldring Ethos SE
Record Cleaning Machine
CD Player / Transport
DAC
Music Server
Network Player / Renderer / Streaming Endpoint
Interlinks
Driade Flow Link Reference 808 RCA and XLR
Loudspeaker Cables
Digital Cables
Network Acoustics muon2 Balanced Digital Cable
Mogami 3080 Neglex
Silent Angel Bastei coax
USB Cables
Network Switch
Silent Angel Bonn NX + Genesis GX Clock
Ethernet Cables
ValueLine OEM CAT6 cables
Audio Group Power Installation
Siemens Sitor Cylindric Fuse Cartridge (standard silver-plated fuse and solid silver rod)
Standard unshielded 2,5mm solid core copper installation wire for main group
3x GigaWatt G-044 Schuko Wall Socket
Power Distributors
3x Pawalle TP-80 (very heavily modded, not recommended in standard form)
Power Conditioning
PS Audio PowerPlant P20
(Regenerated power for the entire system except for the Network Switch and Music Servers)
Power Cables
GigaWatt PowerSync ULTRA
GigaWatt LC-2 EVO
Belden 19364 with Bals schuko and Oyaide C004 IEC connectors
Home-made Block CUL 500 Enamelled solid core copper in PTFE tubing with OEM Rhodium schuko and Oyaide 004 IEC
Home-made OEM tinned litze in PTFE dielectric with OEM Rhodium-plated schuko and Oyaide 004 IEC
Power Supply
Network Acoustics origin Hybrid Power Supply
Equipment Support
Ansuz Darkz T2
Artesania Exoteryc Audiorack
Artesania Carbon Fiber Linear Arm Upgrade
Artesania Panzerholz Floor Interface Discs
Artesania Carbon Fiber Floor Interface Discs
Artesania Aire Floor Platform
Artesania KSH2 Krion shelves
Finite Elemente Cerapuc
HRS EXR Audio Stand
HRS EXR Floor Stands
Stillpoints Ultra SS V2
Room Treatment
R.T.F.S. SiRRAH
R.T.F.S. Ceiling Carreau
R.T.F.S. Big Block
R.T.F.S. Ceiling Vane
Vicoustic VicTotem
Steel-reinforced Hardwood Stiffening Bars glued onto the windows
See Also
Associated Equipment
All current HFA Reference Equipment, cables, and accessories.
HFA Audio Setup Snapshots
All Snapshot summaries of operational components in HFA Systems for a specific timeframe
HFA Audio Setup History
In-depth overview of how the HFA systems have developed over the years
HFA Awards page
Ranking Order of all reviewed components and their appointed Awards
