Sunfire Stereo Amplifier 913 047 00 User Manual

Symphonic  
Reference  
Load Invariant High Fidelity  
Stereo Power Amplifier  
 
SAFETY  
15. To prevent electric shock, do not 16. Grounding or Polarization —  
ATTENTION — Le présent appar-  
eil 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.  
use this polarized plug with an exten-  
sion 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 Þche polariseé  
avec un prolongateur, un prise de  
courant ou une autre sortie de cou-  
rant, sauf si les lames peuvent être  
insérées à fond sans laisser aucune  
parIIIe à découvert.  
Precautions should be taken so that  
the grounding or polarization means  
of the Component is not defeated.  
This apparatus does not exceed the  
Class A/Class B (whichever is ap-  
plicable) limits for radio noise emissions  
from digital apparatus as set out in the  
radio interference regulations of the Ca-  
nadian Department of Communications.  
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.  
Contents  
Please read the Safety Instructions  
Safety Instructions................................... 2-3  
carefully before connecting and  
using your SunÞre AmpliÞer.  
Chapter 1: Introduction ...............................4  
Unpacking and List of Features .................4  
Overview.....................................................5  
Rear Panel Features ..................................5  
Installation ..................................................7  
Chapter 1 is a general introduction  
to the features, details and installa-  
tion of your ampliÞer.  
Chapter 2 shows some typical con-  
nections to a preampliÞer and  
speakers.  
Chapter 2: System ConÞgurations.............8  
The Appendix shows some addition-  
al information, including a trouble-  
shooting guide, the Warranty, and  
service assistance details.  
Appendix:  
Series and Parallel ...................................11  
Troubleshooting Guide .............................12  
SpeciÞcations ...........................................14  
Limited Warranty ......................................15  
Service Assistance ...................................15  
To Þnd out more about this and other  
SunÞre products, please visit our  
website: www.sunÞre.com  
3
User's Manual  
 
CHAPTER 1  
Introduction  
Features  
Unpacking  
Your SunÞre AmpliÞer should  
reach you in perfect condition. If  
you do notice any shipping damage,  
please contact your SunÞre Dealer  
immediately.  
Two channel Power AmpliÞer in  
a 17” wide chassis  
250 watts per channel into 8  
ohms  
500 watts per channel into 4  
ohms  
Gently lift out the unit and remove  
all the packing material and acces-  
sories. It is important to save all the  
packing materials and the box in case  
your ampliÞer ever needs to be moved  
or shipped for repair.  
Outrageously low -115 dB  
Noise  
Dear Friend,  
An enormous power source  
provides the ultimate muscle  
for limitless dynamics  
Thank you for purchasing my  
SunÞre Symphonic Reference  
AmpliÞer. I hope that you enjoy it and  
the music it makes as much as I have  
enjoyed creating it for you.  
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.  
Peak-to-peak current output  
capability is 80 amperes per  
channel  
The ampliÞer can drive almost  
any load to any rationally us-  
able current or voltage level.  
Please take a moment to Þll  
out and mail the SunÞre Customer  
Response card. Also read the serial  
number located on the rear panel and  
record it here:  
MOSFET tracking downcon-  
verter  
12 VDC trigger input for remote  
turn-on  
Serial #:  
The intrinsic frequency  
response extends from 1 Hz to  
beyond 100 kHz  
___________________________  
Purchased at:  
___________________________  
___________________________  
___________________________  
___________________________  
Date: _______________________  
IEC removable power cord  
High quality styling and Þnish  
4
User's Manual  
 
CHAPTER 1  
Overview  
Your SunÞre Symphonic Refer-  
ence AmpliÞer is actually two high-  
powered ampliÞers combined in  
a 17 inch wide chassis. It accepts  
line-level signals from a controlling  
preampliÞer, and ampliÞes them to  
a higher speaker-level, suitable for  
driving powerful stereo and Home  
Theater speakers.  
Rear Panel Features  
1
2
In the ALWAYS-ON (up) posi-  
tion, the ampliÞer is always on,  
regardless of input signals or  
12 VDC trigger.  
1. AUTO/ON/OFF Switch  
Your SunÞre AmpliÞer is designed  
with an automatic on/off circuit.  
The SunÞre Symphonic Refer-  
ence PreampliÞer has a compatible 12  
VDC trigger output. When the pream-  
pliÞer is turned on, the ampliÞer will  
also turn on.  
In the AUTO-ON (center)  
In the ALWAYS-OFF (down)  
position, the ampliÞer is always  
off, regardless of input signals  
or 12 VDC trigger.  
position, the ampliÞer will au-  
tomatically turn on if an audio  
signal is present at the left  
or right input, or if it receives  
an input trigger voltage at the  
12 VDC inputs. The ampliÞer  
will automatically turn off after  
a few seconds if the trigger  
voltage is removed, or after ap-  
proximately 20 minutes in the  
absence of an audio signal.  
1/8" mono mini jacks are provided  
for ease of installation, along with a  
terminal strip to allow more ßexibility  
for custom-wired installations. The  
terminal strip and both the 1/8" mini  
jacks are connected in parallel, allow-  
ing 'daisy chaining' to turn on multiple  
ampliÞers.  
2. 12 VDC Trigger Input  
Although the signal sensing turn-  
on is adequate for most installations,  
the 12 VDC trigger inputs are offered  
as an optional way to turn on the  
ampliÞer.  
continued..  
5
User's Manual  
 
CHAPTER 1  
Rear Panel Features continued  
3 4  
3 4  
5
5
6
7
3. RCA Unbalanced Inputs  
4. XLR Balanced Inputs 6. IEC Connector  
Your SunÞre AmpliÞer has three  
sets of inputs for each channel. Two  
are unbalanced RCA inputs and one  
is a balanced XLR type.  
The ampliÞer comes with a  
If your preampliÞer has XLR out-  
puts, connect them to the XLR inputs.  
detachable Linecord which attaches  
here. Make sure it is Þrmly pushed in  
place. Connect the other end to an AC  
outlet which is properly conÞgured for  
the type of plug and has the correct  
voltage for your model.  
The female XLR inputs are wired  
as follows:  
The two RCA inputs for each  
channel are joined together internally  
and either one can be connected  
to the corresponding output of your  
preampliÞer. The other can be used as  
a daisy-chaining output, sending the  
preampliÞer output signal to another  
channel or to another ampliÞer.  
Pin 1 is ground  
Pin 2 is positive (hot)  
Pin 3 is negative (cold)  
7. Line Fuse  
If this fuse fails, replace it with the  
exact same “Slow-Blow” type and cur-  
rent rating.  
Balanced connections pass the  
input signal along two conductors. If  
there is any external noise and inter-  
ference passing into the audio lines,  
both conductors will receive the same  
amount of noise. This noise is then  
rejected in the balanced input stage of  
the SunÞre AmpliÞer.  
Note: Always unplug the  
power cord from your AC out-  
let before removing the fuse.  
Use a ßat headed screw-  
driver, push in slightly and  
gently rotate the fuseholder  
half a turn.  
Note that signals cannot pass  
from the RCA into the XLR inputs.  
Do not drive the ampliÞer from  
more than one preampliÞer or other  
source.  
5. Outputs  
The top post of each  
pair is the positive out-  
put, and connects to the  
positive (red) post of your  
speaker. The bottom post  
of each pair is the negative, and con-  
nects to the negative (black) post of  
your speaker. The posts can accept  
bare wire, spade terminals, and dual  
or single banana connectors.  
6
User's Manual  
 
CHAPTER 1  
Installation  
Read and follow all safety instruc-  
tions shown on pages 2 and 3.  
Connection Tips  
Before setting up your new sys-  
tem, please consider the following :  
12 VDC Trigger  
If you have a Symphonic Refer-  
ence PreampliÞer, it has a Trigger  
terminal which supplies 12 VDC  
whenever the preampliÞer is turned  
on. This voltage can be used to turn  
on the ampliÞer.  
Observe the following precautions  
when choosing a location for your  
ampliÞer:  
Always make sure that your  
components are all turned  
OFF, or unplugged before  
making or changing any  
connections.  
Do not cover any of the ven-  
tilation slots on the bottom or  
sides.  
Use all standard safety  
precautions and make sure  
all the equipment is discon-  
nected before making any  
connections.  
Do not place a preampliÞer  
directly on top of the power  
ampliÞer.  
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.  
Protect it from prolonged  
exposure to direct sunlight and  
other direct sources of heat,  
such as heating vents and  
radiators.  
Any 1/8" mono to mono (two-wire)  
interconnect cable will sufÞce to con-  
nect the 12 V trigger output from the  
preampliÞer to the ampliÞer.  
Make sure that the total current  
draw does not exceed the cur-  
rent rating of the outlet.  
The voltage range for the ampli-  
Þer's trigger input is 5 to 18 Volts DC.  
Do not exceed 18 Volts on this input.  
(CAUTION: Do not connect AC line  
voltage to this input!)  
Do not expose the unit to rain  
or moisture. If ßuid or a for-  
eign object should enter the  
unit, immediately turn off the  
power and contact your SunÞre  
Dealer.  
Use the XLR inputs if your  
preampliÞer has XLR outputs.  
These balanced connections  
provide superior noise rejec-  
tion.  
The input impedance of the 12 V  
trigger input is approximately 600  
(20 mA @ 12 V).  
Avoid excessive exposure to  
extreme cold or dust.  
Whenever possible, route the  
power cords away from the  
signal cables or speaker wires  
to prevent any hum or inter-  
ference heard in the speakers.  
Do not place heavy objects on  
top of the unit.  
AC Power Considerations  
Choose reliable hookup cables.  
They should be fully shielded  
and as short as possible.  
Ensure that the unit is plugged  
into an outlet capable of supplying  
the correct voltage speciÞed for your  
model. The outlet should be capable  
of supplying 15 amps at 120V.  
Some patch cords can be a  
very tight Þt and there is usu-  
ally a preferred method of get-  
ting them off. Some have to be  
removed with a twisting action.  
Be gentle or you may damage  
the jacks of your ampliÞer, or  
other components.  
Care  
If you need to clean the front  
surface, Þrst turn unplug the power  
cord from the AC supply, and then use  
a dry cloth, rubbing with the grain. Be  
careful not to scratch the Þnish. Avoid  
strong cleaning agents.  
Some audiophile cables should  
be hooked up in one direction,  
these are usually marked with  
arrows.  
It is usual for the right channel  
patch cord plugs to be red and  
the left channel connections to  
be white, grey or black.  
7
User's Manual  
 
CHAPTER 2  
System ConÞgurations  
The following diagrams show some typical connections that you might make in  
your installation. They show how the inputs and outputs of the SunÞre AmpliÞer are  
connected to your preampliÞer and speakers.  
Connections to the SunÞre Symphonic Reference PreampliÞer  
Line-level audio signals  
From: PreampliÞer main outputs  
To:  
AmpliÞer line-level inputs  
12 VDC Trigger voltage  
From: PreampliÞer 12 VDC trigger outputs  
To:  
AmpliÞer 12 VDC trigger inputs  
The ampliÞer's line-level audio in-  
puts can be connected to the SunÞre  
Symphonic Reference PreampliÞer  
as shown. The ampliÞer will boost  
the preampliÞer's output, up to a level  
suitable for driving speakers.  
+ -  
R
P
IG  
H
T
E
S
+ -  
E
A
K
R
L
E
F
T
The 12 VDC connection shown,  
can be used to turn the ampliÞer on  
when the preampliÞer turns on. Alter-  
natively, you could use the ampliÞer's  
AUTO-ON switch. The ampliÞer will  
then automatically turn on when a  
preamp signal is received.  
S
P
E
A
K
E
R
Speaker-level audio outputs  
From: AmpliÞer outputs  
To:  
Speaker input posts  
8
User's Manual  
 
CHAPTER 2  
Balanced Connections  
PREAMPLIFIER  
BALANCED OUTPUTS  
Balanced line-level audio signals  
From: PreampliÞer XLR outputs  
To:  
AmpliÞer XLR inputs  
RIGHT  
LEFT  
+ -  
R
IG  
H
T
E
+ -  
S
P
E
A
K
R
L
E
F
T
S
P
E
A
K
E
R
If your preampliÞer has XLR bal-  
anced outputs, it can be connected to  
the ampliÞer's XLR inputs as shown.  
Speaker-level audio outputs  
From: AmpliÞer outputs  
To:  
Speaker input posts  
9
User's Manual  
 
CHAPTER 2  
Biamping connections  
If your speakers can be biamped,  
they will have separate input posts for  
the woofer and the tweeter sections.  
True biamping is very efÞcient  
because each ampliÞer channel only  
receives and ampliÞes the range  
required for its driver. For example, in  
the diagram below, the right channel  
only ampliÞes the low frequencies,  
and the left channel only ampliÞes the  
high frequencies.  
speaker's crossover point. Check  
the speaker owner's manual for this  
speciÞcation.  
An alternative connection method  
is to have one ampliÞer running the  
two woofers and the other running the  
two tweeters. This is useful if your am-  
pliÞers have different power ratings.  
Use the more powerful ampliÞer to run  
the woofers.  
This diagram shows how to cre-  
ate a very efÞcient system with an  
active external crossover. The cross-  
over will split the incoming preamp  
signal into two frequency ranges: one  
above and one below the crossover  
frequency.  
Make sure that you adjust the  
crossover frequency to suit your  
PREAMPLIFIER  
BALANCED OUTPUTS  
R
IG  
H
T
L
E
F
T
RIGHT  
INPUT  
LO  
W
HIGH  
LEFT  
A
CTIVE  
EXTERNAL  
CR  
LO  
W
HIGH  
OSSO  
VER  
R OUTPUTS  
INPUT  
L OUTPUTS  
HIGH  
LO  
W
T
O
S
M
E
C
O
N
IE  
D
R
A
P
L
IF  
+ -  
R
IG  
H
T
R
+ -  
W
O
O
F
E
R
IG  
H
T
T
W
E
E
T
E
R
10  
User's Manual  
 
APPENDIX  
Series and Parallel speaker connections  
The connection of more than  
one speaker per channel will tend  
to degrade the speaker’s frequency  
response, and may make the ampliÞer  
Parallel  
For example, if you want to paral-  
lel-connect two speakers to the front  
Ideally, the total average  
impedance should be no less  
than 2 ohms per channel.  
right channel of the ampliÞer:  
run hot. For the best results use one  
speaker per channel.  
You must make sure that the  
lower impedance does not  
cause the ampliÞer to over-  
heat, shut down, blow the line  
fuse, or pop your circuit break-  
er. If this happens, you should  
reduce the number of speakers  
wired in parallel, rewire them in  
series, or use more than one  
power ampliÞer.  
If you do want to connect more  
than one speaker per channel, there  
are two main ways: Series or Parallel.  
Amplifier  
Outputs  
Series  
For example, if you want to  
series-connect two speakers to the  
front right channel of the ampliÞer:  
The positive output terminal of  
the right channel connects to  
the positive input post of the  
Þrst speaker and to the positive  
post of the second speaker.  
Amplifier  
Outputs  
The negative output terminal  
of the right channel connects  
to the negative input post of  
the Þrst speaker and to the  
negative post of the second  
speaker.  
The positive output terminal of  
the right channel connects to  
the positive input post of the  
Þrst speaker.  
The total impedance of equal  
speakers in parallel is found  
by dividing the impedance of  
one speaker by the number of  
speakers. For example, two  
eight ohm speakers in parallel  
is a four ohm load (eight ohms  
divided by two), four eight ohm  
speakers in parallel is a two  
ohm load (eight ohms divided  
by four).  
The negative input post of the  
Þrst speaker connects to the  
positive input post of the sec-  
ond speaker.  
The negative input post of the  
second speaker connects to  
the negative output terminal of  
the right channel.  
The total impedance of speak-  
ers in series is found by adding  
their impedances together. For  
example, two four ohm speak-  
ers in series is an eight ohm  
load.  
Parallel connections are harder  
on the ampliÞer than series  
connections, as the total im-  
pedance is lower compared to  
driving a single speaker, and  
the ampliÞer must produce  
more current to drive them.  
Series connections are easier  
on the ampliÞer than parallel  
connections as the total imped-  
ance is higher than driving a  
single speaker.  
11  
User's Manual  
 
APPENDIX  
Troubleshooting Guide  
The SunÞre AmpliÞer is expertly  
designed and built to provide years of  
trouble-free performance. Most prob-  
lems that occur can usually be solved  
by checking your setup or making  
sure that the audio and video compo-  
nents connected to the processor are  
on and fully operational.  
If you have connected speakers  
in Parallel, the overall impedance  
may be too low. It is recommended  
that you rearrange the speakers  
in Series to increase the overall  
impedance, thus taking some of  
the load off the ampliÞer.  
Disconnect any component  
which has a grounded power  
cord.  
If the hum persists, disconnect  
all the source components one  
at a time from the back of the  
preampliÞer, until you identify  
the problem.  
Make sure that the ampliÞer  
has good ventilation and is not  
overheating. If the ampliÞer is in  
a closed rack, open up the rear  
panel or use a quiet fan for im-  
proved ventilation.  
The following information will help  
you deal with common setup problems  
you may experience during normal  
use of your unit. If the problems still  
persist, please contact your SunÞre  
Dealer for assistance.  
Ground loop isolators are avail-  
able for audio lines and video.  
You can ask your SunÞre  
Dealer for assistance.  
Try moving the speaker cables  
away from any power cords.  
Try just one speaker, connect-  
ing it to each ampliÞer channel  
and see if one channel is bad.  
A Hum is heard in your  
speakers  
This problem is more than likely  
caused by a “ground loop” in your sys-  
tem, rather than a fault in the ampliÞer.  
Follow these steps to isolate the main  
cause of the hum, there may even be  
more than one.  
No sound from one or  
more speakers  
Speaker cables may have  
come undone. Turn off your  
system and check the cables,  
and tighten the ampliÞer and  
speaker binding posts.  
If you are still having a prob-  
lem, remember that SunÞre’s  
dealers and technical support  
staff will assist you.  
Broken audio cable.  
Remember to turn off all  
components in your system,  
including the ampliÞer, before  
disconnecting or connecting  
any cables.  
Other causes of noise  
The preampliÞer balance level  
is low for the channel con-  
cerned.  
Speaker noise may also be  
caused by interference or  
noise on your AC line. Make  
sure there are no large ap-  
pliances sharing the line, or  
halogen lamps or light-dimming  
Triac devices.  
The preampliÞer Mute switch  
is on, or an external processor  
loop or a tape monitor loop is  
engaged.  
Disconnect all cables which  
come from outside the room,  
and check if the hum goes  
away. This includes such  
connections as cable TV,  
satellite TV, or roof top an-  
tennas. Make sure that they  
are disconnected where they  
Þrst enter the room, so they  
are making no connection to  
the preampliÞer or the TV, or  
any other component. If the  
hum is caused by the cable  
TV line, then you will need a  
“ground loop isolator.” This is  
an inexpensive device Þtted in  
line with the coaxial cable feed.  
Contact your cable company or  
your SunÞre Dealer for assis-  
tance.  
Try connecting your system to  
another AC socket on a sep-  
arate line.  
The ampliÞer shuts down  
often or the line fuse blows  
often  
Keep power cords away from  
audio cables.  
Check that the positive and nega-  
tive speaker wires are not shorted  
together.  
Do not place the preampliÞer  
directly on top of the ampliÞer.  
Make sure that no speakers are  
shorted internally. If you have an  
ohm-meter, disconnect the speaker  
wires and measure the resistance  
between the speaker’s positive  
and negative terminals. If the read-  
ing is less than 2 ohms, the speak-  
ers may have an internal short.  
Measure all speakers and check  
their impedance speciÞcations.  
If the hum is heard from within  
the ampliÞer and not through  
the speakers, this may also  
be caused by interference on  
the AC or DC lines. The power  
transformers may turn this  
interference into an audible  
noise. Internal hum can be  
made worse by a shelf or cabi-  
net resonating, so try moving  
the ampliÞer to another shelf.  
Disconnect all connections  
from the preampliÞer to your  
TV, VCR or DVD.  
12  
User's Manual  
 
APPENDIX  
Try moving your components  
further away from the TV, espe-  
cially if you ever notice the  
screen has changed color in  
the area closest to the compo-  
nent.  
If you have very high efÞciency  
speakers, these may show up  
noise which other speakers  
may not.  
Poor bass performance  
Make sure that your preamp  
does not have the bass level  
turned down.  
Many surround preampliÞers  
have controls which can direct  
all the bass to subwoofers, or  
let your main speakers play the  
full range. Make sure that the  
preampliÞer has been correctly  
set.  
Check that the speaker wires  
have been connected correctly:  
Make sure that the positive of  
each speaker connects to a  
positive output of the ampli-  
Þer, and the negative of each  
speaker connects to a neg-  
ative output. If one speaker is  
wired incorrectly, than it will be  
“out of phase” with the others,  
resulting in poor bass perfor-  
mance.  
If you have connected the  
ampliÞer using the XLR inputs,  
make sure that the XLR cables  
are wired correctly. If one has  
the hot and cold reversed, then  
this will also cause a speaker  
to be out of phase.  
Turn-on and turn-off  
thumps  
Plug the ampliÞer into an  
unswitched AC outlet, and use  
the AUTO-ON feature. This will  
allow the ampliÞer to turn on  
and off with good manners.  
13  
User's Manual  
 
APPENDIX  
SpeciÞcations  
Power output  
Power Consumption  
250 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.  
45 W at idle  
200 W typical (1/8th power)  
1800 W absolute maximum  
(fuse limit)  
Power at clipping,  
minimum:  
Dimensions  
17.0 inches wide  
5.75 inches high (with feet)  
16.5 inches deep (to tips of  
connectors)  
500 watts per channel into four  
ohms.  
Hum and Noise  
Weight  
-115 dB, A-Weighted  
30 lbs  
Maximum output current  
Finish  
80 amperes peak to peak per  
channel  
Brushed aluminum and black  
anodize  
Maximum output voltage  
45 Vrms  
Input impedance, RCA  
inputs  
24 kΩ  
Input sensitivity for rated  
output  
Unbalanced: 1.6 Vrms  
Balanced:  
0.8 Vrms  
Input impedance,XLR input  
24 k, each leg balanced to  
ground Female XLR  
Pin 1  
Pin 2  
Pin 3  
ground  
positive (hot)  
negative (cold)  
12 VDC Trigger Inputs  
Input voltage range  
5 VDC-18 VDC  
© 2002 SunÞre Corporation.  
All rights reserved. SunÞre Corpora-  
tion reserves the right to improve  
its products at any time. Therefore,  
speciÞcations are subject to change  
without notice.  
Input impedance  
Approximately 600 Ω  
(20 mA at 12 V)  
Removable terminal block  
Dual 1/8” minijacks for daisy-  
chaining  
Manual part number:  
913-047-00 Rev A  
14  
User's Manual  
 
APPENDIX  
Limited Warranty  
Service Assistance  
SunÞre Corporation is proud of its  
products which have been built with  
care using advanced technology and  
premium component parts. Your unit  
has been crafted to perform properly  
for many years. SunÞre Corporation  
offers the following Warranty to you,  
the owner of a new SunÞre product:  
SunÞre Corporation’s liability is  
limited to the repair or replacement,  
at our option, of any defective prod-  
uct and shall not in any event include  
property or any other incidental or  
consequential damages which may  
result from the failure of this product.  
We suggest that you read the Limited  
Warranty completely to fully under-  
stand your Warranty/Service cover-  
age.  
If your SunÞre Corporation prod-  
uct ever requires service, write to us  
or call:  
Some states do not allow limitations  
on how long an implied warranty lasts  
and/or do not allow the exclusion or  
limitation of incidental or consequential  
damages, so the above limitations or  
exclusions may not apply to you.  
SunÞre Corporation  
Technical Services Department  
P.O. Box 1589  
Snohomish, WA 98291  
Tel (425) 335-4748  
Fax (425) 335-4746  
The SunÞre Corporation Warranty  
for the Symphonic Reference Ampli-  
Þer is in effect for FIVE years from the  
date of original retail purchase. The  
SunÞre Corporation Warranty covers  
defects in materials and workmanship.  
The following, however, are excluded:  
This Warranty gives you speciÞc  
legal rights, and you may also have  
other rights which vary from state to  
state. We suggest that you attach your  
purchase receipt to this Warranty and  
keep these in a safe place. Thank you  
for your choice of a SunÞre Corpo-  
ration product.  
You will be directed to an autho-  
rized SunÞre Corporation Service  
Station or receive instructions to ship  
the unit to the factory. Please save the  
original shipping carton and packing  
materials in case shipping is required.  
Please do not ship Parcel Post.  
a) Damage caused during ship-  
ment.  
b) Damage caused by accident,  
misuse, abuse of operation  
contrary to the instructions  
speciÞed in the SunÞre Corpo-  
ration user’s manual.  
NOTE: Before sending in your unit for  
repair, you must call SunÞre for return  
authorization.  
c) Units where the serial number  
has been defaced, modiÞed or  
removed.  
Include a complete description of the  
problem, indicating how you have it  
connected, the associated equipment  
in your system and a copy of your  
purchase receipt. Initial shipping costs  
are not paid by SunÞre Corporation;  
return ground shipping costs will be  
prepaid if repairs were covered by the  
scope of this Warranty.  
d) Damage resulting from modi-  
Þcation or attempted repair by  
any person not authorized in  
writing by SunÞre Corporation.  
e) Units purchased from unau-  
thorized dealers.  
The SunÞre Corporation War-  
ranty extends to the original owner  
or subsequent owner(s) during the  
Þve year warranty period, so long as  
the original dated purchase receipt is  
presented whenever warranty service  
is required.  
All implied warranties, including  
warranties or merchantability and  
Þtness for particular purposes, are lim-  
ited in duration to the two year length  
of this Warranty, unless otherwise  
provided by state law.  
15  
User's Manual  
 
Symphonic Reference  
Load Invariant High Fidelity  
Stereo Power Amplifier  
Manual part number : 913-047-00 Rev A  
 

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