Sphinx Project 12 Owners manual

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USER MANUAL

PROJECT TWELVE

MONO POWER AMPLIFIER

SPHINX Project Twelve

1. UNPACKING.......................................................................................................................................3

2. SPHINX WARRANTY CARD ..............................................................................................................3

3. THE POWER AMP AT A GLANCE.....................................................................................................4

Front panel...................................................................................................................................................4

Rear panel ...................................................................................................................................................5

4. INSTALLATION AND CONNECTIONS..............................................................................................6

Installation....................................................................................................................................................6

Connections in general................................................................................................................................6

Connecting loudspeakers............................................................................................................................6

Connecting the input....................................................................................................................................6

Connecting the optical cables......................................................................................................................6

Connecting the mains cable ........................................................................................................................7

5. OPERATION........................................................................................................................................8

Power On.....................................................................................................................................................8

Power off...................................................................................................................................................... 8

Warnings .....................................................................................................................................................8

Encountering problems................................................................................................................................8

6. CARE AND MAINTENANCE.............................................................................................................10

7. TECHNICAL SPECIFICATIONS.......................................................................................................10

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SPHINX Project Twelve

Congratulations on your purchase of the Sphinx
Project Twelve!

You are now part of an ever-increasing group of
quality-conscious audiophiles using Sphinx
products.
We are very proud of the tradition connected with
the SPHINX name, especially concerning audio
quality perfection.
This manual will help you to gain a maximum
amount of pleasure and quality from your new
Sphinx Project Twelve.

The design is based on the long experience of the
Sphinx design team with ultra-wide bandwidth
power FET's.
These have an unique and extremely wide power
bandwidth exceeding 1.5 MHz, a very high slew
rate of over 100 V/µs and an unequalled perfect
phase linearity over the complete frequency
bandwidth.
The extremely low output impedance results in a
damping factor of over 600!
Together with the very 'heavy' power supply and its
large energy buffer of 26,920 µF, this results in an
effortless sound with a very large dynamic range
and an unsurpassed transient response.
Much attention has also been paid to the physical
layout, the positioning of components and the
internal grounding. This results in an equivalent
input noise value of <1 µV (<-120 dBV): remarkable
for a pre-amp, but really astounding for a big power
amp with two transformers.

All of this means that the Project Twelve can work
with all kind of loads from every loudspeaker: even
the most difficult ones like electrostatic and
magnetostatic.

1. UNPACKING

Before leaving the factory every Project Twelve is
subjected to stringent and extensive technical and
exterior quality inspection.
This ensures you will enjoy many years of high
quality audio from a perfect-looking product.

Attention: The power amp weighs over 6.5 kg
(14.33Lb). Never lift it out of the box without
someone helping you.

After unpacking your Project Twelve we therefore
recommend you carefully check it for any transport
damage.
In case of damage: please contact your Sphinx
dealer immediately and retain all packing materials
for possible proof of damage and possible claims.

Even if the component is in perfect condition you
should still keep the packing materials. If you need
to transport your Project Twelve at a later time it will
be best protected by the original packing materials.

2. SPHINX WARRANTY CARD

Please take this opportunity to fill out the enclosed
warranty card now!
Follow the instructions on the card or consult your
dealer.
Please send the card as soon as possible to the
return address (within 14 days after purchase).

To obtain the maximum quality from this power amp
it is necessary to use it with top quality audio
components preferably with other Sphinx
components.

Please read this manual carefully before you
install or use the Project Twelve. It is
important to familiarise yourself with the
special functions, operation and possibilities
of the Sphinx Project Twelve.

Your local dealer will be able to answer any
questions concerning other Sphinx audio
components.

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