Grandioso G1 - Générateur d'horloge maître Esoteric - Free user manual and instructions

USER MANUAL Grandioso G1 Esoteric

IMPORTANT SAFETY INSTRUCTIONS

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. 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 enclosure that 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 the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

WARNING: TO PREVENT FIRE OR SHOCK HAZARD,

DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION o DO NOT REMOVE THE EXTERNAL CASES OR CABINETS TO EXPOSE THE ELECTRONICS. NO USER SERVICEABLE PARTS ARE INSIDE. o IF YOU ARE EXPERIENCING PROBLEMS WITH THIS PRODUCT, CONTACT THE STORE WHERE YOU PURCHASED THE UNIT FOR A SERVICE REFERRAL. DO NOT USE THE PRODUCT UNTIL IT HAS BEEN REPAIRED. o USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.IN USA/CANADA, USE ONLY ON 120 V SUPPLY. Model for USA This equipment has been tested and found to comply with the lim-its for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular instal-lation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:• Reorient or relocate the equipment and/or the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.• Consult the dealer or an experienced radio/TV technician for help. Model for Canada Industry Canada’s Compliance Statement:This Class B digital apparatus complies with Canadian ICES-003. Model for Europe This product complies with the European Directives request, and the other Commission Regulations. CAUTION Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to oper-ate the equipment. China RoHS o The information in the following table is only applicable to products for sale in the People’s Republic of China. o The products sold in the European area are manufactured in accordance with the European RoHS Directive. *%7*UDQGLRVR **%74 IMPORTANT SAFETY INSTRUCTIONS (continued) 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 (including amplifiers) that produce heat.9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are pro-vided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10) Protect the power cord from being walked on or pinched par-

ticularly at plugs, convenience receptacles, and the point where they exit from the apparatus.11) Only use attachments/accessories specified by the manufacturer.12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.13) Unplug this apparatus during lightning storms or when unused for long periods of time.14) 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 nor-mally, or has been dropped. o The apparatus draws nominal non-operating power from the AC outlet with its POWER or STANDBY/ON switch not in the ON position. o The mains plug is used as the disconnect device; the disconnect device shall remain readily operable. o Caution should be taken when using earphones or headphones with the product because excessive sound pressure (volume) from earphones or headphones can cause hearing loss. WARNING Products with Class ! construction are equipped with a power supply cord that has a grounding plug. The cord of such a prod-uct must be plugged into an AC outlet that has a protective grounding connection. CAUTION o Do not expose this apparatus to drips or splashes. o Do not place any objects filled with liquids, such as vases, on the apparatus. o Do not install this apparatus in a confined space such as a book case or similar unit. o The apparatus should be located close enough to the AC outlet so that you can easily reach the power cord plug at any time. o If the product uses batteries (including a battery pack or installed batteries), they should not be exposed to sunshine, fire or excessive heat. o CAUTION for products that use replaceable lithium batter- ies: there is danger of explosion if a battery is replaced with an incorrect type of battery. Replace only with the same or equivalent type. For European Customers Disposal of electrical and electronic equipment and batteries and/or accumulators a) All electrical/electronic equipment and waste batteries/accu-mulators should be disposed of separately from the municipal waste stream via collection facilities designated by the govern-ment or local authorities.b) By disposing of electrical/electronic equipment and waste batteries/accumulators correctly, you will help save valu-able resources and prevent any potential negative effects on human health and the environment.c) Improper disposal of waste electrical/electronic equipment and batteries/accumulators can have serious effects on the environment and human health because of the presence of hazardous substances in the equipment.d) The Waste Electrical and Electronic Equipment (WEEE) symbols, which show wheeled bins that have been crossed out, indicate that electrical/electronic equip-ment and batteries/accumulators must be collected and disposed of separately from household waste.If a battery or accumulator contains more than the specified values of lead (Pb), mercury (Hg), and/or cadmium (Cd) as defined in the Battery Directive (2006/66/EC), then the chemical symbols for those elements will be indicated beneath the WEEE symbol.e) Return and collection systems are available to end users. For more detailed information about the disposal of old electri-cal/electronic equipment and waste batteries/accumulators, please contact your city office, waste disposal service or the shop where you purchased the equipment. Pb, Hg, Cd5 English MEXCEL is a registered trademark of Mitsubishi Cable Industries, Ltd. in Japan and other countries. ESOTERIC is a trademark of TEAC CORPORATION, registered in the U.S. and other countries. Other company names, product names and logos in this document are the trademarks or registered trademarks of their respective owners. Contents Thank you for purchasing this Esoteric product. Read this manual carefully to get the best performance from this product. After reading it, keep it in a safe place with the warranty card for future reference.

IMPORTANT SAFETY INSTRUCTIONS ...............................3

• Before use p. 6
• About the transportation locking screws p. 7
• Making connections p. 8
• Names and functions of parts p. 10
• Rubidium oscillator p. 11
• Basic operation p. 11
• Troubleshooting p. 12
• Maintenance p. 12
• Specifications p. 13
• Dimensional drawings Before use What's in the box Check to be sure the box includes all the supplied accessories shown below. Please contact the store where you purchased this unit if any of these accessories are missing or have been damaged during transportation. Power cord × 1 Felt pads × 4 Owner’s manual (this document) × 1 Warranty card × 1 Note about pinpoint feet High-precision metal pinpoint feet are attached firmly to the bottom plate of this unit. Chassis Pinpoint foot (metal) Foot-stand (metal) Screws that attach foot-stand The stands for these feet are loose, but when the unit is placed in position, it is supported by these pinpoint feet, which will effectively disperse vibrations. o Apply the included felt pads to the bottoms of the foot-stands to avoid scratching the surface where the unit is placed. Precautions for use o This unit is very heavy, so take care to avoid injury during installation. o Do not install this unit in a location that could become hot. This includes places that are exposed to direct sunlight or near a radia- tor, heater, stove or other heating equipment. Moreover, do not place it on top of an amplifier or other equipment that gener- ates heat. Doing so could cause discoloration, deformation or malfunction. o When installing this unit, leave a little space (at least 20 cm or 8") between it and walls and other devices in order to allow good heat dissipation. If you put it in a rack, take precautions to prevent overheating by leaving at least 5 cm (2") open above the top of the unit and at least 10 cm (4") open behind the unit. Failure to provide these gaps could cause heat to build up inside and result in fire. o Place the unit in a stable location near the audio system that you will use with it. o Do not move the unit during use. o Be careful to avoid injury when moving the unit due to its weight. Get someone to help you if necessary. o The voltage supplied to the unit should match the voltage printed on the rear panel. If you are in any doubt regarding this matter, consult an electrician. o Do not open the body of the unit as this might result in damage to the circuitry or cause electric shock. If a foreign object should get into the unit, contact your dealer. o Do not place anything, not even CDs, CD-Rs, LP records or cassette tapes, on top of the unit. Doing so could cause damage. o When removing the power plug from an outlet, always pull directly on the plug; never yank on the cord itself.7 English About the transportation locking screws The rubidium unit is attached loosely inside the Grandioso G1 because this contributes to improving the sound quality. For this reason, before shipment from the factory, transportation lock- ing screws have been attached through the bottom of the Grandioso G1 to protect the rubidium unit from vibration during transportation. o After removing the transportation locking screws, save them in a safe place because you will need to reattach them before trans- porting the unit in the future. Before installing the unit Before installing the unit, remove the three transportation locking screws. o Save the transportation locking screws in a safe place because you will need to reattach them before transporting the unit in the future. Before transporting the unit Before transporting the unit again, reattach the three transportation locking screws removed when the unit was installed. Transportation locking screws8 Making connections p. 146

Precautions when making connections o After completing all other connections, plug the power plug into a power outlet. o Read the owner’s manuals of all devices that will be connected, and follow their instructions. o For connections other than clock sync, refer to the owner’s manuals of the other devices. o When using separate devices, such as a CD transport and a D/A converter, input the clock signal from this unit to both. BCDA

External reference signal generator, GPS receiver, etc. Ref. oscillation freq. output (10 MHz/1 pps) BNC coaxial cable BNC coaxial cable BNC coaxial cable Grounding wire CLOCK IN CLOCK IN Super Audio CD transport, player, etc. D/A converter, etc.

Wall outlet Included power cord9 English A Reference frequency input (EXT IN) connector To input a signal from an external reference signal generator (10MHz output) or GPS receiver (1pps/10MHz output), connect the output connector of that device to this EXT IN connector. Use a commercially-available BNC coaxial cable (with 75Ω or 50Ω impedance) for connection. Set the toggle switch according to the signal input through this connector. 1PPS Select this mode when a 1pps signal from a GPS receiver or other device is input through the EXT IN connector to oper- ate with the built-in rubidium unit synchronized to the GPS. OFF The built-in rubidium unit is used for the reference clock. 10MHz When a GPS receiver or other device that does not have 1pps output is connected, select this mode and input the 10MHz output from that device to the EXT IN connector. This unit can internally generate a 1pps signal from the 10MHz input signal and operate synchronized with the built-in rubidium unit. o If the output level of the external oscillator is outside the allowable input range of this unit, it cannot be used. Refer to the oscillator manual for information on the output level and accuracy of the oscillator. o Changing the reference signal takes some time. Moreover, frequently changing the setting of this connector could cause misoperation. B 10MHz OUT connectors These output 10MHz clock signals (sine wave, 0.5Vrms output level, 50Ω output impedance). Connect these 10MHz OUT connectors to the clock input con- nectors of CD players, D/A converters and other digital devices that support 0.5Vrms 10MHz input. Use commercially-available BNC coaxial cables (with 75Ω or 50Ω impedance) for connection. Set the toggle switches according to how the connectors are being used. A.GND (Adaptive Zero Ground) This outputs a 10MHz clock signal. o The amp is used to drive the negative connector so that it becomes 0 V. OFF Disabled NOR (NORMAL) This outputs a 10MHz clock signal. C LED brightness adjustment knob Use to adjust the brightness of the indicators. D PREHEAT switch

This turns the power for the rubidium oscillator on regardless of the POWER button setting. This shortens the amount of time until the oscillator stabilizes after the unit is turned on. o Due to the nature of the rubidium oscillator, continuous operation stabilizes the precision of operation, so we rec- ommend turning this ON. o When the unit power is off, clock is not output even though the rubidium oscillator is operating. o Power will be consumed even when the unit power is off. OFF The POWER button turns the rubidium oscillator on/off with the unit. o Set this switch when the unit power is on. E SIGNAL GND grounding terminal Connecting this to the grounding terminal of a connected digital device, amplifier or other equipment might improve the audio quality. o This is not an electrical safety ground. F Power inlet (~IN) Connect the included power cord to this socket. After complet- ing all other connections, plug the power plug into a power outlet.

Use only a genuine Esoteric power cord. Use of other power cords could result in fire or electric shock.

Disconnect the power plug from the outlet if you will not use the unit for a long time. At Esoteric, we use Esoteric MEXCEL stressfree cables for reference. For detailed information, access the following website. http://www.esoteric.jp/products/esoteric/accessory/indexe.html10 Names and functions of parts A LOCK indicator This shows the clock status.When the reference frequency input (EXT IN) connector setting is OFFThis blinks when warming up or when an error occurs. It stops blinking and stays lit when output stabilizes.When the reference frequency input (EXT IN) connector setting is 1PPS or 10MHzThis blinks when warming up, when there is no input signal or when an error occurs. It stops blinking and stays lit when locked. B POWER button Press this to turn the unit on and off.When the unit is on, the power indicator lights blue. o When the power is turned on, the unit starts warming the rubidium unit up to its operating temperature. It takes 10 minutes for the oscillator frequency to stabilize.

Turn this unit’s POWER button and PREHEAT switch off when you do not plan to use it for an extended amount of time. C Power indicator When the unit is on, this lights blue. D Clock output indicators These show the status of each of the 10MHz OUT connectors.From left to right, the indicators correspond to 10MHz OUT 1, 2, 3 and 4.The colors of the clock output indicators change as follows according to their operation modes.Blue: Normal mode (NOR)Green: Adaptive Zero Ground (A.GND)Unlit: Output off (OFF) A B C D11 English Rubidium oscillator This unit uses a rubidium oscillator to generate its reference master clock. Since rubidium oscillators have extremely high precision and high stability, they are used in GPS satellites and similar applications. In this master clock generator, we have incorporated a rubidium unit because it also features short-term stability and high waveform qual- ity as well as the ability to be used for many years without calibration. These and other characteristics make it excellent for meeting the demands of a master clock generator in a high-end audio system. When shipped new, this unit is set to Rubidium mode, and will use the built-in rubidium unit to generate the reference clock. With a frequency precision of ±0.05 ppb (when shipped new) and a frequency stability of less than ±0.1 ppb at temperatures rang- ing from −20°C to +65°C, this rubidium unit is able to provide an extremely stable audio clock. This master clock generator can also be connected to a GPS receiver for GPS-linked operation. By inputting a GPS 1pps signal through the reference frequency input (EXT IN) connector and enabling 1pps mode, the built-in rubidium unit can be made to follow the GPS. In most cases with GPS receiver output, the degree of short-term stability depends on the GPS receiver. However, since the degree of long-term stability depends on the GPS satellite, this mode allows this master clock generator to synchronize with the accuracy pro- vided by the long-term stability of the GPS satellite (about 0.001 ppb) while utilizing the high quality of the rubidium unit. In order for the rubidium unit to synchronize with a 1pps input signal, the signal must have accuracy and stability that are equivalent to GPS. If you are using a GPS receiver that does not have 1pps output, this master clock generator can itself generate a 1pps signal from the GPS receiver’s 10MHz output signal. To do this, use this unit’s 10MHz mode to make the rubidium unit operate synchronized with the GPS. Basic operation

Start playback of the connected device after the LOCK indicator lights. o We recommend waiting until the oscillator stabilizes after the power is turned on (10 minutes).12 Troubleshooting If you experience a problem with this unit, please take a moment to review the following information before requesting service. If this product still does not operate correctly, contact the retailer where you purchased it. The unit does not turn on. e Check that the power cord is plugged into a working power outlet. e Check that the power cord is properly connected to this unit. The clock output is not synchronizing another device. e Confirm that the connected device supports 0.5Vrms 10MHz clock. The input and synchronization of clock signals might vary according to the device. Refer to the owner’s manual of each device for how to connect and set them. The LOCK indicator never stops blinking. e The oscillator can take about 10 minutes until its oscillation stabilizes. e When the reference frequency input (EXT IN) connector setting is 1pps or 10MHz, confirm that the frequency and level of the input reference clock are not incorrect. e When the reference frequency input (EXT IN) connector setting is OFF, if the LOCK indicator does not stop blinking, contact the retailer where you purchased the product. Maintenance Use a soft dry cloth to wipe the surface of the unit clean. For stubborn smudges, use a damp cloth that has been thoroughly wrung out to remove excess moisture.

For safety, disconnect the power plug from the outlet before cleaning. o Never spray liquid directly on this unit. o Do not use chemically-treated wipes, thinner or similar substances because they could damage the surface of the unit. o Avoid allowing rubber or plastic materials to touch the unit for long periods of time because they could damage the cabinet.13 English Specifications Clock outputs Output frequency ............................................10 MHz BNC connectors .................................................... 4 Output level ............................sine wave, 0.5±0.1 Vrms/50 Ω Master clock input (EXT IN) Input frequency 1pps mode ...................1pps signal (GPS precision or better) 10MHz mode .....................10 MHz (GPS precision or better) BNC connector ..................................................... 1 Input levels 1pps signal .........................Positive pulse: TTL level/10 kΩ 10MHz ..............................Sine wave: 0.5–1.0 Vrms/50 Ω Square wave: 1.5–5.0 Vpp/50 Ω Rubidium oscillator Clock stabilization time .............................about 10 minutes (time until oscillator stabilizes after unit turned on) Frequency stability .................Within ±0.1 ppb (−20°C to +65°C) Frequency precision ..........Within ±0.05 ppb (when shipped new) (ppb = 10

General Power supply Model for Europe/Hong Kong/Korea. . . . . . .AC 220–240 V, 50/60 Hz Model for USA/Canada/Taiwan ...............AC 110–120 V, 60 Hz Power consumption ........................74 W (while warming up) 23 W (when stable) Dimensions (W × H × D) (including protrusions) 445 × 132 × 448 mm (17 5/8" × 5 1/4" × 17 3/4") Weight ..............................................23 kg (50 3/4 lb) Operating temperature ................................+5°C to +35°C Included accessories Power cord × 1 Felt pads × 4 Owner’s manual (this document) × 1 Warranty card × 1 o Design and specifications are subject to change without notice. o Weight and dimensions are approximate. o Illustrations in this manual might differ slightly from production models.14 Dimensional drawings

Gutenbergstr. 3, 82178 Puchheim, Germany Phone: [phone] 1016 MA-2314A This appliance has a serial number located on the rear panel. Please record the serial number and retain it for your records. Model name: Grandioso G1 Serial number