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6

If you need to make adjustments thereafter to the source or the

outputs, always remember to turn the volume down to zero before
doing so.

When switching on the

P30K

for the first time, we recommend

you check that the sound image is correct by playing a piece of music
that you are familiar with. If there is any doubt it will be best to
double check all the connections before proceeding.

7.

SAFETY

PRECAUTIONS

AND

MAINTENANCE

Never operate the amplifier with either the bottom or top covers
removed.

High voltages are present within the

P30K

, which could

cause severe electric shock.

Do not operate the

P30K

unless the protective valve cage is

securely fitted !

Do not open the amplifier !

There are no user adjustments inside, and none other than those

described in this manual.

For technical assistance or product service please refer to your

Authorised Dealer or to a Unison Research

authorised Service

Centre.

Do not spill liquid into the amplifier !

If liquid should be accidentally spilled into the amplifier remove

the mains plug from the wall socket immediately and seek assistance
from an authorised Sevice Centre before attempting to operate it
again.

Before inserting the mains plug into the wall socket ensure that
the switch on the amplifier is in the “OFF” position.

If you do not intend to use the amplifier for a long period of time
we strongly recommend you unplug from the mains at the wall
socket.

Cleaning the

P30K

.

Summary of Contents for P30K

Page 1: ...HIGH END ELECTRONICS BORN IN ITALY P30K ...

Page 2: ...mony All our products are made using fine quality materials and each one is inspected at various stages of the production process to ensure that it meets our own very high standards All the wood detailing is made by expert craftsmen from prized solid hardwoods and hand finished using organic laquers to enhance the natural beauty of the wood As well as having visual appeal the wood parts serve the ...

Page 3: ...ition of each V1 V2 etc is correct Refit the protective valve cage When choosing the best position for your Unison Research P30K please bear in mind the following guidelines Valves are sensitive to shock and mechanical vibration which in turn can affect the quality of sound For this reason avoid placing the amplifier close to the loudspeakers Placement on a sturdy and resonance free shelf or equip...

Page 4: ... and remove the red loudspeaker output terminals referring to the printed instructions on the rear panel insert the three gold links as indicated Replace and retighten the terminals Note that this operation modifies the output impedance and provides double the power output from the P30K N B In mono use you may insert the input from your preamplifier into either Left o Right input The P30K has been...

Page 5: ...socket The correct value of mains fuses is indicated on the rear panel and in the technical specifications at the end of this manual Always replace fuses with new ones of the same type and value 6 OPERATION Warning Switch on the P30K only after all the input and output connections including loudspeaker connections have been made and checked Before switching on ensure that the volume control is at ...

Page 6: ...ss the protective valve cage is securely fitted Do not open the amplifier There are no user adjustments inside and none other than those described in this manual For technical assistance or product service please refer to your Authorised Dealer or to a Unison Research authorised Service Centre Do not spill liquid into the amplifier If liquid should be accidentally spilled into the amplifier remove...

Page 7: ... just a touch of natural wax polish from time to time This will keep the lustre and patina of the wood in perfect condition Never operate the amplifier when covered Adequate ventilation is essential at all times Never attempt to remove the valves when the amplifier is switched on Always switch off and allow it to cool down Valves are shock sensitive especially when hot Take care not to subject the...

Page 8: ...on pure Class A Output stage single ended parallel ultralinear Valves power output stage 4xKT88 driver stage 2xECC83 Output power 30 watt per channel stereo 60 watt per channel mono Output Impedance 4 8 16 stereo 2 4 8 mono Weight 28 kgs Dimensions w x d x h 27 5 x 46 x h 20 cm ...

Page 9: ...surement of radio disturbance characteristics of broadcast receivers and associated equipment EN 61000 3 2 1995 and subsequent modifications Electromagnetic compatibility Part3 Limits Section 2 Limits for harmonic current emissions equipment input current 16A per phase EN 61000 3 3 1995 and subsequent modifications Electromagnetic compatibility Part3 Limits Section 2 Limitation of voltage fluctati...

Page 10: ...ts and outputs pag 4 4 Removing the protective valve cage pag 5 5 Connecting to the mains pag 5 6 Operation pag 6 7 Safety precautions and maintenance pag 6 8 Technical specifications pag 9 Declaration of Conformity pag 10 Unison Research is the registered trade mark of A R I A Advanced Research In Audio S r l ...

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