Sunfire Series II User Manual
User's Manual
Safety Instructions
1. Read Instructions -– All the safety and
operation instructions should be read before
the Sunfire Component is operated.
2. Retain Instructions — The safety and
operating instructions should be kept for
future reference.
3. Heed Warnings — All warnings on the
Component and in these operating instructions should be followed.
4. Follow Instructions — All operating and
other instructions should be followed.
5. Water and Moisture — The Component
should not be used near water - for example,
near a bathtub, washbowl, kitchen sink,
laundry tub, in a wet basement, or near a
swimming pool, etc.
6. Ventilation — The Component should be
situated so that its location or position does
not interfere with its proper ventilation. For
example, the Component should not be
situated on a bed, sofa, rug, or similar surface
that may block any ventilation openings; or
placed in a built-in installation such as a
bookcase or cabinet that may impede the flow
of air through ventilation openings.
7. Heat — The Component should be situated
away from heat sources such as radiators, or
other devices which produce heat.
8. Power Sources — The Component should
be connected to a power supply only of the type
described in these operation instructions or as
marked on the Component.
9. Power Cord Protection — Power-supply
cords should be routed so that they are not likely
to be walked upon or pinched by items placed
upon or against them, paying particular attention
to cords at plugs, convenience receptacles, and
the point where they exit the Component.
10. Cleaning — The Component should be
cleaned only as recommended in this manual.
11. Non-use Periods—The power cord of the
Component should be unplugged from the
outlet when unused for a long period of time.
12. Object and Liquid Entry — Care should
be taken so that objects do not fall into and
liquids are not spilled into the inside of the
Component.
13. Damage Requiring Service — The
Component should be serviced only by qualified
service personnel when:
A. The power-supply cord or the plug has been
damaged; or
B. Objects have fallen, or liquid has spilled
into the Component; or
C. The Component has been exposed to rain;
or
D. The Component does not appear to
operate normally or exhibits a marked change
in performance; or
E. The Component has been dropped, or its
cabinet damaged.
14. Servicing — The user should not attempt
to service the Component beyond those
means described in this operating manual. All
other servicing should be referred to qualified
service personnel.
2
Safety Instructions
User's Manual
15. To prevent electric shock, do not use this
polarized plug with an extension cord, receptacle or other outlet unless the blades can be
fully inserted to prevent blade exposure.
Pour préevenir les chocs électriques ne pas
utiliser cette fiche polariseé avec un
prolongateur, un prise de courant ou une autre
sortie de courant, sauf si les lames peuvent être
insérées à fond sans laisser aucune pariie à
découvert.
16. Grounding or Polarization — Precautions
should be taken so that the grounding or
polarization means of the Component is not
defeated.
WARNING – TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE
OF PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION: POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRO-
DUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE
CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU’AU FOND.
This apparatus does not exceed the Class A/
Class B (whichever is applicable) limits for radio
noise emissions from digital apparatus as set
out in the radio interference regulations of the
Canadian Department of Communications.
ATTENTION — Le présent appareil
numérique n'émet pas de bruits
radioélectriques dépassant las limites
applicables aux appareils numériques de
class A/de class B (selon le cas) prescrites
dans le règlement sur le brouillage
radioélectrique édicté par les ministere des
communications du Canada.
Contents
Introduction ........................................................................ 4
Unpacking .......................................................................... 5
Specifications..................................................................... 5
Installation .......................................................................... 6
Front panel features........................................................... 7
Rear panel features ........................................................... 8
System configurations...................................................... 10
Unbalanced RCA.......................................................... 10
Balanced XLR .............................................................. 11
Biamping ...................................................................... 12
Biwiring ......................................................................... 14
Speaker connections ....................................................... 16
Troubleshooting guide...................................................... 17
Limited Warranty .............................................................. 19
Service assistance ........................................................... 19
To find out more about this and other Sunfire products, please visit our website:
www.sunfire.com
Safety Instructions and Contents
3
User's Manual
Introduction
Dear Friend:
Thank you for purchasing my
amplifier. I hope you enjoy it and the music it makes as much as I have enjoyed creating it for you.
This magnificent amplifier represents my very latest thinking - and my best amplifier design
ever I’ve spent over twenty years developing it, and cannot imagine how I could make it any better,
or refine it any further. No matter what, its performance is at first, somewhat difficult to believe.
The
Cinema Grand Signature
850 watts rms per channel into 4 ohms.
The big breakthrough feature of the
downconverter, which uses 18 Herculean Mosfets.
The circuit boards are heavy glass epoxy, double sided, with a Faraday shield on the back
side. All resistors in the signal path are 1% tolerance, metal-film. Critical capacitors are film
devices with high dielectric strength and ultra low absorption characteristics. An enormous
Grand Signature
muscle for limitless dynamics.
I could go on and on, but here’s the best part: I’ve included two kinds of outputs on the center,
front left and front right:
(1) a standard voltage-source (i.e., near zero impedance) output for all typical applications and
(2) a higher-impedance current-source output, which many prefer for electrostatic, planar magnetic, or ribbon speakers. Or you can biwire your system with the voltage source driving the
woofer(s) and the current source driving the upper part of the system. In many cases this provides
by far the best possible interface between the amplifier and the speaker system.
power source built around a massive power transformer provides the ultimate
Sunfire Cinema Grand Signature Edition
can produce 425 watts rms per channel into 8 ohms, and
Cinema Grand Signature
Bob Carver, Amplifier Designer, Physicist
five channel power
is its uncanny tracking
Cinema
Whichever way you decide to hook up the
multilayered soundstage that is deep, wide, three-dimensional, and utterly believable. The optional
current-source output can coax forth a sensuous, delicately detailed musical voice long associated
with low-powered classic tube amplifiers. (The current-source characteristic of vacuum tubes is
the dominant factor in the soundstage delivery of classic tube amplifiers).
4
Introduction
Sunfire Cinema Grand Signature
, it will create a
Unpacking
Your Cinema Grand Amplifier should
reach you in perfect condition. If you do notice
any shipping damage, please contact your
Sunfire Dealer immediately.
Gently lift out the unit and remove all the
packing material and accessories. It is
important to save all the packing materials
and the box in case your amplifier ever needs
to be moved or shipped for repair.
User's Manual
Maximum output current
120 amperes peak to peak per channel
Maximum output voltage
58 Vrms
Output impedance Front Left
and Front Right channels
Voltage source: Approx zero
Current source: Approx one ohm
Make sure that you keep your sales
receipt. It is the only way to establish the
duration of your Limited Warranty and it may
come in useful for insurance purposes.
Please make a note of your serial number
located on the rear panel:
Serial #:
___________________________
Purchased at:
___________________________
___________________________
___________________________
Date: _______________________
Specifications
Power output
Input impedance, RCA input
24kΩ
Input sensitivity for rated output
Unbalanced: 2.0 Vrms
Balanced: 1.0 Vrms
Input impedance, XLR input
24kΩ, each leg balanced to ground
Female XLR
Pin 1 is ground
Pin 2 is negative (cold)
Pin 3 is positive (hot)
Dimensions
19.0 inches wide
6.5 inches high (including feet)
16.75 inches deep (including connectors)
Weight
45 lbs
Finish
Brushed aluminum and black anodize
425 watts continuous, per channel, all
channels driven into eight ohms from
20 Hz to 20 kHz with no more than 0.5%
T.H.D.
Power at clipping, minimum:
850 watts per channel into four ohms.
1700 watts per channel into two ohms
(time limited basis).
Hum and Noise
-103 dB, A-Weighted
© 2001 Sunfire Corporation.
All rights reserved. Sunfire Corporation
reserves the right to improve its products at
any time. Therefore, specifications are subject
to change without notice.
Manual part number : 913-034-00 Rev A
Unpacking and Specifications
5
User's Manual
Installation
Read and follow all safety instructions
shown on pages 2 and 3.
Observe the following precautions when
choosing a location for your Cinema Grand
Amplifier:
• Protect it from prolonged exposure to
direct sunlight and other direct
sources of heat, such as heating
vents and radiators.
• Do not expose the unit to rain or
moisture. If fluid or a foreign object
should enter the unit, immediately turn
off the power and contact your Sunfire
Dealer.
• Avoid excessive exposure to
extreme cold or dust.
• Do not place heavy objects on top of
the unit.
• Allow adequate ventilation around the
amplifier; do not cover the ventilation
slots.
AC Power Considerations
Ensure that the unit is plugged into an
outlet capable of supplying the correct voltage
specified for your model. The outlet should be
capable of supplying 15 amps for the 120V
model, 8 amps for the 230V model.
Care
If you need to clean the front surface, first
turn off the power and then use a slightly
dampened cloth, rubbing with the grain. Be
careful not to scratch the display window.
Connection Tips
Before setting up your new system,
please consider the following :
• Always make sure that your components are all turned OFF before
making or changing connections.
• Make sure that the power cords of all
your components are attached to the
same outlet or at least to the same
circuit. This will reduce the possibility
of a ground loop in the system.
Make sure that the total current
draw does not exceed the
current rating of the outlet.
• Use the XLR inputs if your preamplifier
has XLR outputs. These balanced
connections provide superior noise
rejection.
• Whenever possible, keep the power
cords away from the signal cables
or speaker wires to prevent any hum
or interference being heard in the
speakers.
• Choose reliable hookup cables, also
called patch cords or RCA cables. They
should be fully shielded and as short as
possible for the job.
• Some patch cords can be a very tight
fit and there is usually a preferred
method of getting them off, some have
to be removed with a twisting action.
Be gentle or you may damage the
jacks of the amplifier or your other
components.
• Some special patch cords can only be
hooked up in one direction, these are
usually marked with arrows.
• It is usual for the right patch cord plugs
to be red and the left connections to be
white, grey or black. Video connections
are usually yellow.
6
Installation
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