Sunfire Cinema Grand Signature Architect Mk2 Owners 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
DUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE
CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU’AU FOND.
ÉVITER LES CHOCS ÉLECTRIQUES, INTRO-
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.
Safety Instructions
3
User's Manual
Contents
Signature and Standard Editions ....................................... 5
Introduction ........................................................................ 6
Unpacking .......................................................................... 7
Signature Edition specifications ......................................... 8
Standard Edition specifications.......................................... 9
Installation ........................................................................ 10
Front panel features......................................................... 11
Rear panel features .................................................... 12-13
System configurations...................................................... 14
Unbalanced RCA.......................................................... 14
Balanced XLR .............................................................. 15
Biamping ................................................................. 16-17
Biwiring .................................................................... 18-19
Speaker connections ....................................................... 20
Troubleshooting guide................................................. 21-22
Limited Warranty .............................................................. 23
Service assistance ........................................................... 23
To find out more about this and other Sunfire products, please visit our website:
www.sunfire.com
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Table of Contents
Signature and Standard Editions
User's Manual
This manual covers both the Signature
Edition and the Standard Edition of the
Cinema Grand Architect’s Choice Series II.
The Architect’s Choice line of amplifiers
and preamplifiers are designed with a 17”
wide chassis. This makes them an ideal
choice for fitting into Home Theater entertainment centers and for specifying in custom
installations.
Standard Edition
225 Watts per channel into 8 Ω
450 Watts per channel into 4 Ω
17” wide chassis
The Signature Edition has more power
output and uses premium quality output
terminals compared to the Standard Edition.
The illustrations in this manual are of the
Signature Edition, but the operational details,
features and connections to loudspeakers and
preamplifiers are the same for both models.
Signature Edition
425 Watts per channel into 8 Ω
850 Watts per channel into 4 Ω
17” wide chassis
Bob Carver’s Signature on the
front panel
Signature and Standard Editions
5
User's Manual
Introduction
Dear Friend:
Thank you for purchasing my
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 Edition
and 850 watts rms into 4 ohms.
The
Cinema Grand Standard Edition
and 450 watts rms per channel into 4 ohms.
The big breakthrough feature of the
which uses 18 Herculean Mosfets in the Signature Edition and 12 in the Standard Edition.
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
limitless dynamics.
left, front right, and center :
(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 muscle for
I could go on and on, but here’s the best part: I’ve included two kinds of outputs on the front
Sunfire Cinema Grand
can produce 425 watts rms per channel into 8 ohms
can produce 225 watts rms per channel into 8 ohms,
Cinema Grand
Bob Carver, Amplifier Designer, Physicist
five channel power amplifier. I hope
is its uncanny tracking downconverter,
Cinema
Whichever way you decide to hook up the
soundstage that is deep, wide, three-dimensional, and utterly believable. The optional currentsource 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).
6
Introduction
Sunfire Cinema Grand
, it will create a multilayered
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.
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:
User's Manual
Serial #:
___________________________
Purchased at:
___________________________
___________________________
___________________________
Date: _______________________
Unpacking
7
User's Manual
Signature Edition Specifications
Power output
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
-118 dB, A-Weighted
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: Approximately zero ohms
Current source: Approximately one ohm
12VDC Trigger Inputs
Input voltage range 5VDC-18VDC
Impedance: approx 600Ω (20mA @ 12V)
Power Consumption
45W At idle
400W Typical (1/8th power)
1800W Absolute Max (Fuse Limit)
Dimensions
17.0 inches wide
5.9 inches high (including feet)
16.7 inches deep (to tips of connectors)
Weight
38 lbs
Finish
Brushed aluminum and black anodize
Input impedance, RCA inputs
24kΩ
Input sensitivity for rated output
Unbalanced: 2.0 Vrms
Balanced: 1.0 Vrms
Input impedance, XLR inputs
24kΩ, each leg balanced to ground
Female XLR
Pin 1 is ground
Pin 2 is positive (hot)
Pin 3 is negative (cold)
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Signature Edition Specifications
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