Ultra Hi-Fi Digital Audio

HD Audio project based on the highly acclaimed ESS Sabre32 series. This project uses the latest flagship ES9038PRO chip that has the highest performance 32-bit Audio technology. Professionally built with the highest quality parts.
Built and supported for personal DIY/Hobby use only. Commercial use, duplication or distribution in any form is not permitted without license agreement. For commercial versions please go to ACKOLABS

Products and services by Ackolabs Pty Ltd, Australia

General Enquiries:

AKD32S - 2CH DAC Module based on ES9038PRO

-NEW! The latest ESS 9038PRO-based DAC in stereo/mono mode 
-NEW! I2S/DSD --  PCM up to 768KHz and DSD to DSD512
-2CH Spdif (TTL). Requires Coax or TOSLINK receiver (not included)
-Optimized direct connections. No jumpers, switches or links.
-4 layer, Gold Plated board
-On-board low phase noise clock for Asynchronous operation.
-Options for external Master Clock.e.g for Synchronous operation (AKL-S03 required)
-3-Term Regs mounting for power*. Requires 3.3Vx5 and 1.2Vx3 supplies e.g AKR75s or equivalent (not included)
-On-board low phase noise Master Clock  or external clock via UFL
-Requires external Controller (e.g. AKC32-not included)
-Mono operation possible (requires two DACs)
-Voltage or Current Output mode
-Requires External IV for current mode drive (e.g AKV12 or transformers) -  (not included)
-User's Manual and support information provided. For 9038PRO datasheet please contact ESS directly
-Supplied as shown. Options are extra at cost
*design subject to changes for improvements. Final product may look different from what is shown.
* DAC requires proper power supplies to operate.

AKD32S  DAC Module
Unit Price USD 368
- Built-to-order only. ~8-12wks Lead time

AKC32 - 2CH Controller for  ES9038PRO*

-Full Control of DAC module via on-board switches, memory or remote control.
-High performance MCU with NV flash memory for 'soft' switches and
 settings (all registers). 
-ESS Digital Volume Control
-Remote Control of DAC module via PCs, Tablets or SmartPhones**
 (View/Set all registers)
-OS & hardware independent Comms API.
-Low-level I2C comms or easy to use high level functions
-Mono/Stereo. Controls up to two DACs automatically
-Panel Mountable
-Supported Devices: ES9038PRO, ES9028PRO and ES9026PRO 
-Assembled and Tested
-User's Manual with support information supplied

* Not available separately
** Requires suitable communications modules (not included)

AKC32 DAC Controller
Unit Price USD 180
- Built-to-order only. ~8-12wks Lead time

For a more advanced product go to 

AKL-S03   Digital Isolator & Re-clocker - Synchronous Master Clock

e.g. connection to Amanero

-High Speed Galvanic Isolation with -Synchronous or Asynchronous re-clocking.capability
-Physically matches and interacts with the Amanero USB-I2S but can also be used with other transports or similar application where isolation and re-clocking are required e.g:

-No signal processing. Takes any digital signal irrespective of formats I2S, DSD etc. 
-Ultra-low jitter Audio Clocks
-External clock option =>  More ...
-All buffered outputs with high drive capability
-GHz rated switching components
-Clean, bit-perfect outputs w.r.t. reference Clocks
-Direct connection to most DACs
-Drives AKD32 series DACs in full synchronous mode

-Users Guide and Support Information Provided
-Assembled and Tested.  (Test Certificate provided)           
- Built-to-order ~2-3 wks
*design subject to changes. Final product may look different from what is shown.
-Unit Price: USD 265

For more advanced products go to 

2CH USB-I2S/DSD Audio Module-AKU384

"High frequency Rogers board"
-HiRes, Bit-Perfect 32bits 
-PCM - 44.1k, 48k, 88.2k, 96k, 176.4k, 192k, 352.8k and 384k
-DSD 64,128,256
-Based on Amanero and AKL-S03 Digital Isolator/Re-Clocker
-Dual Ultra-low Phase Noise Synchronous Audio Clocks
-Buffered Outputs on micro coax (u.fl) headers
-Direct connection to most DACs
-Drives ESS DACs in Synchronous mode for the highest performance.
-All separate ultra-low noise (1uV rms) power supply and filters on board with very high PSSR
-Ultra pure 3.3V supply (<0.5uV rms noise) for Oscillator section. Options for external supply from batteries, etc
-I2C Port for reading sample rates directly from transport
-Led sample rate indicators on-board.
-Wide input supply 5-12V d.c. Regulated or unregulated
-Gold plated 2oz Rogers 4003 board 
-Selection of finest components
-Assembled and tested
built-to-order only ~4-6wks lead time

Unit Price: USD 485 

Pop Buster 

-Pop Eliminator for Power ON/OFF events in audio systems
-Connects at any stages of DAC, Buffer, Preamp or Amplifier outputs
-Shunt relay action - Not in signal path.
-Connects up to two outputs per module, balanced or unbalanced signals
-Instructions provided

-Built to Order: ~1-2wks
-Unit Price: USD 65

AKD32P -The most musically advanced DAC!

-ES9038PRO -2CH DAC 
-High frequency, impedance controlled Teflon-Rogers pcb
-Gold plating
-Selection of finest components
-Manually soldered using low thermal stress, high conductivity Silver Alloy
-Engineered to perfection!
-lots of options ....



-Monobloc architecture
-DSD Input (single channel) straight from digital sources
-Single ended and Balanced Outputs on board
-Strong line-level outputs. Connect directly to Power Amplifiers/Headphones
-Soft mute and pop-suppression
-Simply replicate for Multi-Channel applications.

-under development!

MISC. Products

BBB-DSD Interface Adapter Module

-PCM and DSD outputs, auto-switching
-Safe and reliable shutdown upon mains power loss (LiPo 3.7V Battery required - connect to BBB battery terminal
-Mounts on P9 connnector of BBB => [Pic])
-Isolated I2C port (Options for I2C control of External Devices e.g DACs)
-Connections to S03 using U.FL coax or header =>  [Pic]

-Users Guide and Support Information Provided
-Assembled and Tested.  
*design subject to changes. Final product may look different from what is shown. 
-Unit Price: USD 165
Built-to-order only - Lead time ~3-4wks


Power Supply Products

High performance audio grade designs

AKR75 Super Regulator 

-Ultra-Low Noise, High PSSR 3-Terminal LDO Regulator
-Any output from 1.2V to 15V
-Wide input supply range (4.5-16V).
>90dB PSSR
-Suitable for direct connection to unregulated dc supplies. 
No pre-regulation required
-up to 800mA output @ 0.6V dropout*
-1uV rms noise, typical @3.3V
-On-board input filters and decouplers - unaffected by long supply leads. 
-Self contained design. Direct connection to load and supply. No additional I/O components required
-Thermal paths on ground plane itself. No bulky heatsinks required**
-Vertical, horizontal or in-line mounting, standard 3-Term 78xx pinouts (pins not mounted but supplied)
-Available in standard outputs: 1.2V, 1.8V, 3.3V, 3.6V, 4V, 5V, 6V, 9V,12V and 15V 
-Custom outputs possible
-Assembled and tested
-Compact size: 16mm x 37mm
*design subject to changes. Final product may look different from what is shown.

* 200mA max for 1.2V and 6V-15V version

**load currents >200mA or high input-output voltages require additional heatsinking
External Heatsink-Mountable
In Stock
Select Output
*Or Enter Custom Output Value

Trafos Boards

15/25VA Single Toroidal Transfromer Board

                                                   e.g. Assembly

-High performance Single Toroidal Transformer board
Supplied as empty boards only. Suitable for 15VA or 25VA pcb toroids
-62mm x 80mm

In Stock
-Unit Price: USD 25

15/25VA Dual Toroidal Transfromer Board

                                                                   e.g. Assembly

-High performance Dual Toroidal Transformer board
Supplied as empty boards only. Suitable for 15VA or 25VA pcb toroids
-124mm x 80mm

In Stock
-Unit Price: USD 35

Super Audio PSU

High Capacity Ultra-low Noise

-High Performance Dual Independent dc outputs, 
-Fixed outputs (any output from 1.2V to 24V options) and up to 1A continuous load current option
-Ultra-low noise 1.6uV @3.3V, >
90db PSSR
-Low noise toroidal transformer (detachable)
-High speed schottky rectifier, low ESR Capacitor bank (12,000uf) and Polypropylene filter capacitors
-can be configured for dual or bipolar outputs

- Built to order ~2wks

Triple Output Ultra-low Noise

-Low power Triple Independent dc outputs, 
-Fixed outputs (any output from 1.2V to 24V options)
-Ultra-low noise 1.6uV @3.3V, >90db PSSR
-Up to 400mA continuous load current. Up to 1A peak, non-
-Unique ground plane heatsink
-High speed schottky rectifier, low ESR Filter Capacitors  and Polypropylene bypass capacitors
-Connect to external mains transformers, batteries or switch-mode power supplies

- Built to order ~2wks

Subpages (3): Comms Images Untitled