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Summary of Contents for Thrax Dionysos
- Page 2 Dionysos Preamplifier by Thrax Audio Operating Manual Manual issued 05/03/2012 CAUTION THE UNIT CONTAINS NO USER SERVICEABLE PARTS. DO NOT REMOVE THE COVERS. LETHAL VOLTAGES ARE PRESENT WITHIN THE CHASSIS. NEVER OPERATE THE PREAMPLIFIER WITH THE CHASSIS COVERS REMOVED. DO NOT OPERATE THE UNIT IF WET OR NEAR WATER.
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Page 3: Table Of Contents
CONTENTS 1. Important Safety Instructions …………....…........3 2. Introduction ………..................… 3. Specification ……..................… 4. Unpacking and Installation - Unpacking ……..................… - Installation ……..................… 5. Front Panel ……....................… 6. Back Panel - AC Fuse ……..................… - Inputs …..…...................… - Outputs ………..................… - Tape output ………................…... -
Page 4: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS 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. -
Page 5: Introduction
It’s unusual topology, premium parts, and flexibility make it a pleasure to hear and operate. Dionysos has a single gain stage executed with zero feedback using a triode type vacum tube. It is transformer coupled eliminating ground loops and isolating the attenuator and amplification stage from the influences of the outside world (other components). -
Page 6: Specification
SPECIFICATION • Inputs - 4 pair unbalanced RCA connectors - 2 pair balanced XLR connectors • Output - 2 pair unbalanced RCA connectors - 2 pair balanced XLR connectors - 1 pair unbalanced RCA connectors – tape out • Attenuation steps ………………..............…….. 32 •... -
Page 7: Unpacking And Installation
This section describes the unpacking and installation procedures for your new component. 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. -
Page 8: Front Panel
FRONT PANEL Although most of the front panel controls (Volume, Power, Mute) are self explanatory, Thrax Audio has outfitted this unit with several advanced features which bear further description: Figure 1 “ON/OFF” Button Switches the unit “ON” and “OFF”. See OPERATION SECTION for details. - Page 9 FRONT PANEL “Right Channel Volume” Display This numeric led displays the current volume of the right channel. In Mute Mode the display reads double dashes “--”. - The lowest volume leve l ………………. (level 1) -46 db attenuation. - Unity Gain …………………………..…… (level 24) 0 db attenuation - The highest volume level …………...…...
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Page 10: Back Panel
BACK PANEL Figure 2 AC Fuse There are fuses located in the IEC power connector on the back panel. For 220 volt operation a 1.0 ampere fuse is used. For 110 volt operation the fuse should be 2.0 amperes. If power does not come on, contact your authorized service representative. Inputs 4 pairs of RCA jacks accommodate unbalanced line level sources. -
Page 11: Tape Output
BACK PANEL TAPE Output There is a set of TAPE output connectors on the back of the preamplifier (see Fig. 2). These can be used to feed a Tape Deck or CD Recorder input jack. These output jacks are switched “ON” and “OFF” via a button on the front panel (the TAPE button – as you might expect, see Fig. -
Page 12: Remote Control
REMOTE CONTROL The remote control allows for wireless adjustment of Source Select, MUTE, PHASE, BALLANCE and VOLUME. The remote wand is powered by two “AAA” batteries. These should be of the alkaline type. You will need to install them in the wand before using the remote. -
Page 13: Operation
Best sound will be achieved after about 15 minutes of operation. Any time that the Dionysos Preamplifier has not been used for a few weeks the sound may be different. This is also normal for high resolution audio equipment. Optimum sound should return after a few hours of operation, preferably with an audio signal. - Page 14 OPERATION If your HT processor already had its levels set for the same amplifiers directly connected to the HT Processor then using level 24 (unity gain) on the preamplifier will maintain proper surround channel vs main channel levels. If you are installing the processor new or making other changes in the system then you should set the preamplifier to an HT mode for that processor input BEFORE you set your surround levels.
- Page 16 NOTES...
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