X-3T

User Guide

CLOCK GENERATOR

Table of Contents
Safety Precautions................................................................................................3
Rear Panel Names and Functions........................................................................6
Protection Pads for Transport...............................................................................7
Attaching the Spike Pins.......................................................................................7
Features of X-3.....................................................................................................8
Troubleshooting....................................................................................................9
Maintenance.........................................................................................................9Specifications........................................................................................................9

Supplied Accessories• Power cable............................................... 1• Spike pin.................................................... 3• SMA-SMA clock cable................................ 1• Hex key for spike pins................................ 1• SMA-BNC conversion plug........................ 1• User Guide (this manual)........................... 1• Wrench for clock cable............................... 12

Safety Precautions

CAUTIONRISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICEPERSONNEL.

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert
the user to the presence of uninsulated “dangerous voltage” within the product’s enclosurethat may be of sufﬁcient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to thepresence of important operating and maintenance (servicing) instructions in the literatureaccompanying the product.

WARNINGTO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO
RAIN OR MOISTURE.

A warning that an apparatus with CLASS I construction shall be connected to a MAINS socket outlet with aprotective earthing connection.

3

IMPORTANT SAFETY INSTRUCTIONSREAD BEFORE OPERATING EQUIPMENT

This product was designed and manufactured to meet strict quality and safety standards.
There are, however, some installation and operation precautions which you should be particularly aware of.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings.
Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (includingamplifiers) that produce heat.
9. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and thepoint where they exit from the apparatus.
10. Only use attachments/accessories specified by the manufacturer.
11. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, orsold with the apparatus. When a cart is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
12. Unplug this apparatus during lightning storms or when unused for long periods of time.
13. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged
in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been
dropped.
14. Batteries shall not be exposed to excessive heat such as sunshine, fire or the like.

CAUTION:•

To completely disconnect this product from the mains, disconnect the plug from the wall socket outlet.
The mains plug is used to completely interrupt the power supply to the unit and must be within easy
access by the user.

•Never use the unit with any other cord except the supplied power cord.

NOTE ON USEWARNINGS• Avoid high temperatures.
Allow for sufficient heat dispersion when installed in a rack.
• Handle the power cord carefully.
Hold the plug when unplugging the cord.
• Keep the unit free from moisture, water, and dust.
• Unplug the power cord when not using the unit for long periods of time.
• Do not obstruct the ventilation holes.
• Do not let foreign objects into the unit.
• Do not let insecticides, benzene, and thinner come in contact with the unit.
• Never disassemble or modify the unit in any way.
• Ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, tablecloths or curtains.
• Naked flame sources such as lighted candles should not be placed on the unit.
• Observe and follow local regulations regarding battery disposal.
• Do not expose the unit to dripping or splashing fluids.
• Do not place objects filled with liquids, such as vases, on the unit.
• Do not handle the mains cord with wet hands.
• When the switch is in the OFF position, the equipment is not completely switched off from MAINS.
• The equipment shall be installed near the power supply so that the power supply is easily accessible.

4

DECLARATION OF CONFORMITY
We declare under our sole responsibility that this product, to which this declaration relates, is in conformity with the followingstandards:
EN60065, EN55032, EN55020.
Following the provisions of Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU.

A NOTE ABOUT RECYCLING:
This product’s packaging materials are recyclable and can be reused. Please dispose of any materials
in accordance with the local recycling regulations. When discarding the unit, comply with local rules orregulations.
Batteries should never be thrown away or incinerated but disposed of in accordance with the local
regulations concerning battery disposal. This product and the supplied accessories, excluding the batteries,constitute the applicable product according to the WEEE directive.

CAUTIONS ON INSTALLATION**WallWandParoiParete*** For proper heat dispersal, do not install this unit in a confined space, such as a bookcase orsimilar enclosure.
• Leave sufficient clearance (at least 10 cm) from the wall, (at least 5 cm) from top surface of the unit.
• Do not place any other equipment on this unit.

5Rear Panel Names and Functions

asa 10 MHz Clock Output Terminal(CLOCK OUTPUT)

s AC Inlet (115 V AC)

Use a clock cable to connect to an external 10 MHzclock terminal such as D-3, S-3, or D-2.
Since this is an SMA terminal, when using a general
BNC cable, be sure to use a BNC female – SMA maleconversion adapter.

Precautions on connecting a clock cable• When connecting a clock cable to a device, besure to turn off the power of the device first.
• The clock output terminal is intentionally not secured
in order to maintain the audio quality.
• When connecting an SMA cable, plug the cablestraight into the terminal. Otherwise, the screw
cannot be turned easily.
• First, turn the screw with your fingers as far as itwill go.
• Then, use the supplied wrench to lightly tighten
the screw to the point where it cannot be turnedeasily.
• Do not overtighten the screw.

• To fully enjoy the performance of the unit, it isrecommended that you use an RCC-1 cable(sold separately) instead of the supplied SMA
clock cable.

6dConnect to a 115 V AC wall outlet (mains) with thesupplied power cable.
Notes:• Do not use any electrical contact cleaner or thelike in the AC inlet area.
• To maintain the audio quality, use the supplied powercable.
• Connect the power cable to the AC wall outlet (mains)by inserting the power plug prong with the engraved
OO symbols into the ground side (the longer hole).
If you reverse the orientation of the power plug, you
cannot fully enjoy the performance of the unit.
• Firmly insert the power cable into the end of the ACinlet.
• The ground terminal and the housing are notconnected.
• The AC inlet is intentionally not secured in order tomaintain the audio quality.

d Power Switch
Press the “-“ side to turn on the power and press the“o” side to turn off the power.
Notes:• In order to maintain the audio quality, the unit is not
equipped with functions other than the clock output,
such as power status indications. The power on/off
status can be confirmed with pressed state of theswitch.
• In order to maintain the audio quality, it is good tokeep the power on all the time.
• The power switch is intentionally not secured inorder to maintain the audio quality.

Protection Pads for Transport

Attaching the Spike Pins

Before use, be sure to remove the pads from the unit.
With the pads left attached, you cannot fully enjoy thehigh audio quality of the unit.

 y replacing the feet with the supplied spike pins,B
you can tune the audio quality. Point grounding makes
the sound focus and auditory lateralization sharper.
Furthermore, the audio quality can be subtly tuned
by changing the material of the surface on which thisequipment is installed.

• In order to maintain the audio quality, the top coverand terminals on the rear panel are intentionally notsecured.
• If you shake the unit, you will hear a rattling sound. Itis not an abnormality.
• When you transport the unit, reattach the pads to theoriginal places.
Cushions
クッション

Cushions
クッション

Notes:• When replacing the feet with the spike pins, remove thecarbon washers from the feet, and then reattach themto the spike pins.
• When the spike pins are attached, it may be difficult
to keep weight balance stable. Take great care not tocarelessly apply a force on the corners of the main unit.

カーボンワッシャー
Carbon washers

Cautions• When using the spike pins, be extremely careful
not to get injured, etc.
• When using the spike pins, be careful that thesurface on which the main unit is installed suchas the surface of a table, shelf, etc., may become
damaged.

7Features of X-3
Feature 1: SC-cut Ultra-low Phase noise OCXO

Adopted an SC-cut ultra-low phase noise OCXO (Oven Controlled Crystal Oscillator) which achieves highaudio quality.

Feature 2: Naked Foil Resistor

For the output resistor that greatly influences the audio quality of the clock, a satellite-grade ultraprecisionresistor with a superior temperature characteristic and low heat noise was further customized specially for theunit. This extraordinary naked foil resistor is one of the important factors of the great audio quality.

Feature 3: SMA Output Terminal

Adopted an SMA terminal of 20 GHz or more for the output terminal. Focusing on achieving higher audio quality,
only one output terminal is provided. To enjoy the dynamic sound of the music, it is highly recommended thatyou use an RCC-1 cable (sold separately) instead of the SMA-SMA 50 ohm clock cable supplied with X-3.

Feature 4: High-power Non-feedback Power Supply

For the power supply required for the crystal oscillator, a 200 VA toroidal transformer that has the largest
capacity among 100 W amplifies is adopted. For the rectifier diode, ultra-fast SiC diode is adopted for the firsttime. A multitude of electrolytic capacitors with low magnification and low capacity are connected in parallel tomake up a group of rectifier capacitors. For regulators, SOULNOTE unique non-feedback power is supplied.

Feature 5: Quiet Power Supply Environment

The unit is not equipped with any functions that are unnecessary for the crystal oscillator such as power LED
or relays. This enables the unit to provide a quiet power supply environment.

Feature 6: Housing Designed with Highest Priority Placed on Audio Quality

We newly developed a housing specially for X-3. The top cover with the top-bottom sides unsecured canprevent air-dumping. In addition, an unsecured AC inlet, an unsecured output terminal, 3 spike supports
located just under the transformer, titanium washers, and carbon washers are adopted. These parts and ideas
were adopted as a result of placing the highest priority on audio quality.
• For more detailed information, refer to our website or Facebook page.
https://www.kcsr.co.jp/soulnote.html

8Troubleshooting

Specifications

No sound is output. (The unit does not start.)• Check that the power of the main unit is on.
• Check the connections of the external devices.
• Check that the power of the external devices is on.
• Check that the operations and settings on theexternal devices are correct.
• Check that the screw of the SMA cable is tightened
all the way.

Output...........................................................SMA x 1
Output frequency...........................................10 MHz
Output impedance....................................... 50 ohms
Output level..................................................1.0 Vp-p
Power voltage..................................115 V AC, 60 Hz
Power consumption.............................................2 W
Maximum external dimensions................. 430 mm (W) x 111 mm (H) x 376 mm (D)Maintenance

Weight............................................................. 7.5 kg

When the unit has become dirty, wipe it clean usinga soft cloth. To remove stubborn stains, dilute somedish-washing liquid in 5 or 6 times as much water,
soak a soft cloth in the solution, wring it out well, wipeaway the stains, and then wipe the surfaces dry witha dry cloth.
Never use alcohol, paint thinners, benzine, insecticides
or other volatile substances since they may mar or
remove the surface gloss.
Bear in mind that rubbing surfaces with a chemicalcleaning cloth or leaving such a cloth in contact with asurface for an extended time may result in deterioration.
Note:• Do not use any electrical contact cleaner or thelike in the AC inlet area. It will cause a faulty.

9CSR International Ltd.

Printed in Japan

10/2021 39BA851170 TM