Gold Note PSU-1250 User manual

USERʼS MANUAL
PSU-1250/1000
EXTERNAL POWER SUPPLY

INDEX
2
PACKAGE CONTENT..............................................................................................................................
DESCRIPTION......................................................................................................................................
TECHNICAL SPECIFICATIONS.........................
............................................................................................
FRONT AND REAR PANEL...........
................................................................................................................
QUICK START.........................................
..................................................................................................
WARRANTY AND SERVICE
...........................................................................................................................
FAQ AND TROUBLESHOOTING
....................................................................................................................
IMPORTANT SAFETY INFORMATION
............................................................................................................
P. 3
P. 4
P. 5
P. 6
P. 7
P. 8
P. 9
P. 10

PACKAGE CONTENT
3
• PSU-1250/1000
• 1 AC Cable
• 1 External cable PSU-1250/1000
• User’s Manual

DESCRIPTION
4
The PSU-1250 and the PSU-1000 are the super inductive external power supplies dedicated to the Gold Note 1000 Series.
Engineered with the best quality audio-grade components to provide our electronics, such as the CD-1000, DS-1000, PH-
1000 and the P-1000, with a large amount of ultra-clean power. For the PSU-1250 (1250W) and the PSU-1000 (1000W),
we engineered a sophisticated design powered by a double inductor driving the negative and positive high-current stages,
and with an inductive filter on the analogue stage.
The PSU-1250 features a 7-Transformer design, with 4 transformers dedicated exclusively to the power supply stage, of
which one for the galvanic insulation of the audio stage, and 3 dedicated to the Dual Choke Inductive Filter.
The PSU-1000 is powered by a 5-Transformers design, leveraging 4 transformers for the power supply stage and galvanic
insulation and one for the Dual Choke Inductive Filter.
Our external power supplies perfectly filter the AC current and remove interference and electrical noise from the power
system, allowing our electronics to perform at the best. Most importantly, they ensure the electronics always receive the
optimal amount of power without generating EMI (ElectroMagnetic Interference) nor RFI (Radio-Frequency Interference) that
could affect the audio signal due to electromagnetic induction, electrostatic coupling, or conduction.
With the PSU-1250 and PSU-1000, your system will deliver greater dynamics, better resolution and finer details for improved
realism all-around and a higher level of musicality.

TECHNICAL SPECIFICATIONS
5
7 low noise voltage regulator
+12V, +8V, +5V for logic
+/- 12V for analog with inductive noise remover
+/- 28V for analog with inductive noise remover (only with P-1000)
Maximum variation of output voltage: 0,05%
Line noise rejection >80dB
Common mode noise rejection >80dB
Absolute phase control selectable from front panel
POWER
100-120V / 220-240V with automatic selection, 50/60Hz
Power Absorption: 100W
PSU-1250 Dynamic power: >300W
PSU-1000 Dynamic power: >200W
Stand by power: <1W
Full Power Response Time: < 2,5µsec
Fuse: 3,15A F/T
DIMENSIONS AND WEIGHT
Dimensions: 425 W x 135 H x 360 D mm
PSU-1250 Weight: Kg. 21 net - Kg. 27 boxed
PSU-1000 Weight: Kg. 20 net – Kg. 25 boxed
FINISHES
Brushed Aluminium available in Black, Silver or Gold

FRONT AND REAR PANEL
6
STATUS LED
MASTER SWITCH AC PLUG
ON/OFF
PSU PLUG
PLEASE NOTE
The LED is always ON when the PSU-
1250/1000
is in Standby but the Master Switch is ON.
FRONT PANEL OVERVIEW
REAR PANEL OVERVIEW
0°/180° Absolute Phase
PHASE
GOLD NOTE

QUICK START
7
INSTALLING THE PSU-1250/1000
1. Turn OFF the MASTER SWITCH on the Gold Note 1000 series of electronics and remove the power cord
2. Connect the PSU-
1250/1000
to the AC power outlet using the supplied power cord
3. Connect the PSU-1250/1000 to the Gold Note 1000 series of electronics using the supplied cable PSU LINK cable
(from the PSU OUT on PSU-
1250/1000
to the PSU port on Gold Note 1000 series of electronics)
4. Turn on the MASTER SWITCH on the rear panel of the PSU-
1250
.
The PSU-1250 and PSU-1000 are designed for the 1000 Series of Electronics. When a unit is powered by the PSU, the
STATUS LED of the unit changes colour from BLUE to GREEN.
Pressing the PHASE button will invert the phase 0°/180° and the STATUS LED will change colour from BLUE to RED (inverted
phase).

WARRANTY AND SERVICE
8
WARRANTY
To validate the warranty is necessary to register the unit on the Gold Note internet web site within 15 days from
the purchase on the appropriate area of the web site: www.goldnote.it/warranty
If the unit is not registered correctly or has been purchased from a different country of the purchaser home address
the unit will not be covered by any warranty and the registration will be refused.
The warranty does not cover in any case: Tubes, Phono Cartridge Stylus and Batteries.
SERVICE
Every GOLD NOTE® product is the result of meticulous technological research, and consequently their correct
functioning is guaranteed. In spite of this it is possible that problems may emerge which non-specialist users
cannot resolve.
In this case, contact your dealer to be advised on how the fault can be solved.
Do not return any object directly to the factory or to the distributor without being authorised to do so.
In such cases both GOLD NOTE® and the distribution agents decline responsibility of any kind.
For more information please visit www.goldnote.it/service
PLEASE NOTE
Descriptions and technical characteristics may vary at any time and without notice.

FAQ AND TROUBLESHOOTING
9
SOLUTIONCAUSEPROBLEM
the LED on the front
panel is OFF.
the GN unit connected to
the PSU is not showing the
PSU icon on the display/LED
hasn't turned GREEN.
the GN source connected
to the PSU is noisy.
the POWER CORD is
damaged or not plugged in
correctly.
the PSU CONNECTION CABLE
is not plugged in correctly.
the PSU is not correctly
placed.
the MASTER SWITCH is OFF.
ensure that the POWER CORD is not damaged and connect it
properly to the power outlet and the AC plug on the PSU.
ensure that the PSU CONNECTION CABLE is not damaged and
connect it properly to the PSU OUT port on the PSU-1000 on
the compatible GN 1000 series of electronics.
ensure that the PSU is not placed too close to the source or
other potential noisy apparatus or try moving it in a
different position.
turn ON the MASTER SWITCH on the rear panel of the PSU.
TROUBLESHOOTING
PLACING THE PSU-1250 INTO THE SYSTEM
To achieve the best performance we recommend to place the PSU-
1250
at a reasonable distance from other audio electronics.
The PSU-
1250
shouldn't be placed over on under the unit it is powering nor too close to other electronics.
For spare parts visit the official Gold Note store at:
www.akamaiaudio.it

IMPORTANT SAFETY INFORMATION
10
CAUTION!
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER-SERVICEABLE
PARTS INSIDE. REFER ONLY TO QUALIFIED GOLD NOTE
SERVICE PERSONNEL FOR SERVICE
WARNING!
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE
Serial Number:
Model:
This appliance has a serial number located on the rear panel.
Please record the model and serial number and retain them for your records.
Do not disassemble any part of the product.
Do not use any part of the product for other purposes.
For service and problems of any kind, contact qualified Gold Note personnel.
Protect the product from rain, humidity and keep away from heat sources, electric and electronic motors etc.
The power Chord supplied must be used only on this unit.
Gold Note does not have responsibility for any improper use of this unit.

IMPORTANT SAFETY INFORMATION
11
1. Read these instructions and store them.
2. Heed all warnings.
3. Follow the instructions.
4. Do not use this apparatus near water.
5. Clean only with a dry cloth.
6. Do not block the ventilation openings and install in
accordance with the manufacturer's instructions.
7. Do not install near heat sources such as radiators, heat
registers, stoves or other apparatus (including amplifiers)
that produce heat.
8. Do not defeat the safety purpose of the polarised or
grounding-type plug: a polarised 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 provided for
your safety.
If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
9. Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
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, or sold 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 only.
Servicing is required when the apparatus has been
damaged in any way (such as when the power 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) and in any case when the apparatus
does not operate normally or has been dropped.

NOTES
12

NOTES
13

Gold Note Audio
goldnote_italy Gold Note
Akamai S.r.l.
ser[email protected]
www.goldnote.it