Thrax Audio Trajan MC Step-Up Transformer User manual

Trajan
MC Step-Up Transformer
by Thrax Audio
Operating Manual
Manual issued 05/05/2020
CAUTION
THE UNIT CONTAINS NO USER SERVICEABLE PARTS. DO NOT REMOVE THE COVERS. LETHAL
VOLTAGES ARE PRESENT WITHIN THE CHASSIS.
DO NOT OPERATE THE UNIT IF WET OR NEAR WATER.
TIME SPENT FAMILIARIZING YOURSELF WITH THIS MANUAL WILL BE WELL REWARDED.

1. Important Safety Instructions …...................………….................................... 3
2. Introduction ………........................................................................................… 4
3. Specifications ……........................................................................................… 4
4. Installation & set up
- I n s t a l l a t i o n … … . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . … 5
- Set up ……....................................................................................… 5
5. Impedance matching ……….........................................................… 6
CONTENTS
2

READ ALL INSTRUCTIONS: All the safety and operating instructions of your Thrax Audio
equipment should be read before power is applied to the equipment.
RETAIN OWNER'S MANUAL: These safety and operating instructions should be retained
for future reference.
HEED WARNING: All warnings on the unit and in the operating instructions should be
adhered to.
FOLLOW INSTRUCTIONS: All operating and use instructions should be followed.
CLEANING: Unplug the unit from the wall outlet and leave for at least 30 min. - make sure
the unit is not hot before you start cleaning. Use dry or damp soft cloth to clean the
surfaces. Do not use sprays, abrasive or corrosive cleaning products.
GROUNDING: Do not defeat the safety purpose of the grounding-type plug. A
grounding-type plug has two blades and a third grounding prong. The third prong is
provided for your safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
POWER CORD PROTECTION: Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles and the point where they exit from the
apparatus.
LIGHTNING: Unplug this apparatus during lightning storms or when unused for long
periods of time.
SERVICING: Refer all servicing to qualified service personnel. Servicing is required when
the apparatus has been damaged in any way, such as if the power-supply cord or plug is
damaged, liquid has been spilled inside the appliance or it has been exposed to
moisture, the appliance does not operate normally, or has been dropped.
DO NOT OPEN THE CABINET: There are no user serviceable components inside this
product. Opening the cabinet may present a shock hazard, and any modification to the
product will void your warranty.
WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain
or moisture.
IMPORTANT SAFETY INSTRUCTIONS
3

Trajan is an ultra high tech and versatile step-up transformer made to adapt a wide range
of MC cartridges to MM-phono stages. Offering 1:10 and 2:20 step-up ratios and multiple
impedance settings for the perfect match.
Features
Two independent inputs - 10x, 20x step-up ratios
Loading settings - 15Ω/30Ω/60Ω/120Ω /240Ω/470Ω
Inside you get
System: Two independent inputs per transformer
Core Type: Toroidal 20u
Core Material: Nano-crystal soft magnetic material
Coil: LITZ wire primary
Shielding: MuMetal
INTRODUCTION
4
• Inputs ……………….............................................................................….. 2x RCA
• Outputs ……………….........................................................................….. 1x RCA
• Gain ………………..........................................................................…….. 20/26dB
• Input Impedance...................................... 15Ω/30Ω/60Ω/120Ω /240Ω/470Ω
• Load Impedance ………………......................................................…….. >47KΩ
• Dimensions ………………........................................…….. 65mm(H)x125mm(D)
• Weight …….............................................................................................…….. 2kg
• Finish ……................................................... Black or Silver anodized aluminum
SPECIFICATIONS
120
240
60
240
120
60
15
470
10x
20x
20x
10x
OUT
LOAD
IN
X
A
R
H
T
A
U
D
I
O

Connect your turntable output cables to the appropriate input on the Trajan - 1:10 for
cartridges with an output above 0.35mV, and 1:20 for cartridges that put out less than
0.3mV. Connect your phono stage input to the Step-Up Transformer’s output. If your
tonearm has an earth lead, connect it to the grounding post on Trajan’s top panel.
Turn on your system and find the loading setting that sounds the best to your ears, or refer
to your tonearm manufacturer’s recommendations. We recomment muting your system
when changing the load setting to avoid pops.
Unpacking
All Thrax Audio shipping boxes have been specially designed to protect their contents
and special care has been taken to prevent damage under normal shipping conditions.
Mishandling should be evident upon inspection of the shipping container. Carefully
remove your new component from its packing and examine it closely for signs of shipping
damage. We strongly recommend saving all original packing to protect your
component from damage should you wish to store it or ship it at a later date.
Installation
Find a suitable location for Trajan between your turntable and MM phono stage. The
transformers have MuMetal shielding and are isolated from RFI and other disturbances.
UNPACKING AND INSTALLATION
5

NOTES