GIESELER USB Reinigen User manual

GIESELER USB Reinigen
User Manual – Version 1
Welcome to the club.

Introduction
Thank you for purchasing the Gieseler USB Reinigen, we hope you will enjoy it.
The USB Reinigen is a new high speed (4 0 Mbps) USB 2.0 isolator/re-clocker. The main
purpose for this device is to isolate and re-clock USB audio data between a digital source
(such as a music server) and a digital-to-analogue converter (DAC) to maximise sound
quality.
Gieseler products are built to a high level of quality, and include a full two year parts and
labour warranty. All parts are sourced from reputable suppliers such as Digikey,
Element14, Mouser Electronics, and RS Components, to ensure parts meet our quality
standards. Every unit is hand built in Australia by an experienced electronics audio
technician.
Adding the USB Reinigen between a digital source and DAC is aimed at enhancing the
sound quality in terms of separation, vocal body and general minimisation of digital edge
or glare. High speed data is re-timed for jitter reduction using a low phase noise Seiko
24.0000 crystal based clock.
Particular attention has been given to the internal power supplies as these are critical for
optimal sound quality. The main power supply uses the same asynchronous rectifier as the
Gieseler Kraftwerk II series power supplies. The oscillator/clock uses ultra low noise shunt
based regulators with extra pi filtering.
The USB Reinigen also includes a double regulated 1 Amp USB A output connector, which
often powers the USB input board on a DAC. The Reinigen provides a quality low noise
regulated supply. This can be very useful when connecting an external CD drive for
ripping as not only does the drive receive ‘clean’ power but also the USB data is cleaned up.

ontents
Gieseler USB Reinigen
9 Volt AC Plug Pack
Features
Total bidirectional galvanic isolation between in/out connections
USB B Input and USB A output
High speed 4 0 Mbps rating
Multiple ultra low noise internal power supplies
Discrete component design 24.0000MHz low phase noise clock.
1 Amp rated 5v USB A output connection.
Specifications
USB maximum data rate 4 0 Mbps
Galvanic isolation Bidirectional USB isolation for up/down stream ports
USB A output power 5v 1 Amp with double linear regulators
Power adaptor 9v AC 2.0 A linear IE core transformer (Australian 240 v)
Power consumption 2.25 W
AC power input socket 5.5mm diameter with 2.1mm centre pin.
Operation
Connect USB in and out cables first.
Connect AC external 9v plug pack and switch unit on – Blue LED on indicator.
oImportant: only use the provided AC 9v output adaptor. Using a DC plug pack
will damage the unit.
The unit remains fairly cool during operation, but warms slightly during extended use;
this is expected and poses no problems.

Internal jumper settings
There are three jumper settings included on the circuit board, by default these are set to
‘closed’, which should suit most users.
If you do need to change one of these settings, you can set a jumper to ‘open’ by carefully
unplugging the jumper from the circuit board.
The jumpers are labelled on the board per the descriptions below:
Chassis ground link
oClosed (default): links PCB ground plane to case
oOpen: PCB is not grounded to case
USB power out option
oClosed (default): connects 5v on USB A output socket
oOpen: does not connect 5v on USB A output socket
Only set this jumper to open if you are certain that your DAC does not
require 5v in via the USB input. Most digital sources output 5v on their
USB sockets.
Input pin 1 option (located near USB B in socket)
oClosed (default): provides a small load (10K) on the power input pin.
This will assist some digital sources as it shows a connected device.
oOpen: does not provide the load.
Optimal operation conditions
Conditioning devices connected between the USB Reinigen and the digital source
(music server) or between the USB Reinigen and the DAC can cause problems, so direct
connections from the digital source to USB Reinigen, then from USB Reinigen to DAC
are strongly recommended.
oInline USB power filter products, such as ‘Jitterbugs’ in particular may cause
issues.
The clock circuitry takes at least forty eight hours to stabilise from when the USB
Reinigen itself is powered on, which can have some effect on audio quality.
oFor optimal listening it is recommended to leave the USB Reinigen unit
permanently powered on, however the unit is expected to perform well
immediately from start up.
Sound quality will optimise after three hundred hours of on time as electronic
components are 'run in'.