Bel Canto Design Stereo Amplifier REF1000 User Manual

User's Guide and Operating Information  
REF1000  
e.One Series  
Mono Audio  
Power Amplifier  
Bel Canto Design, LTD.  
212 Third Avenue North  
Minneapolis, MN 55401  
Phone: (612) 317.4550  
Fax: (612) 359.9358  
©2005 Bel Canto Design, LTD  
 
Get Closer  
Bel Canto Design audio products are designed to bring you closer to the power  
and beauty of your music. Our goal is simply to provide the most expressive and  
powerful musical experience outside of the live event and bring some of the  
greatest musicians and their performances into the intimacy of your home. We  
design equipment which is easy to own, use and live with. We fully expect that  
your enjoyment and appreciation of your Bel Canto purchase will grow as you  
live with it and experience all of the fine audio subtleties that emerge.  
Bel Canto Design  
REF1000 User’s Guide 1105 Rev.A  
© 2005 bel canto design, Ltd.  
page 3  
 
Design Features  
The e.One Series REF1000 is a mono  
amplifier designed to deliver over  
500 watts into 8 ohm loads and 1000  
watts into 4 ohm loads. The REF1000  
has current drive capability for virtu-  
ally any loudspeaker load down to 2  
ohms. This is achieved in a compact  
and elegant product through our  
adaptation of the latest analog  
switching amplifier and power sup-  
ply technology from the ICEpower  
group.  
analog switching amplifier architec-  
ture liberates your loudspeakers to  
perform at their best. The ultra-low  
noise operation insures that the most  
subtle of musical expressions comes  
through with palpable clarity.  
The superb measured performance  
insures that harmonic and intermod-  
ulation distortion don’t interfere with  
the pristine beauty or raw power of  
the musical message.  
This technology brings unprecedent-  
ed performance gains in absolute  
musical performance. The regulated  
power supply and fully balanced  
The e.One series amplifiers from Bel  
Canto insure that you fully experi-  
ence the musical intensity and beau-  
ty of your favorite artists.  
Warm Up  
The REF1000’s sonic performance will start to stabilize after approximately forty  
(40) hours of continuous power up. We recommend that the REF1000 remains  
powered for optimum performance.  
© 2005 bel canto design, Ltd.  
page 4  
REF1000 User’s Guide 1105 Rev.A  
 
Unpacking  
Unpacking  
Save all packing materials as the  
packing is specially designed to pro-  
tect the amplifier for shipping or  
transporting it. If you lose or damage  
the packing materials or carton,  
please contact your dealer or distrib-  
utor before attempting to transport  
the preamplifier.  
The REF1000 box contains:  
1 – REF1000 User's Guide  
1 - Power Cable for connection  
to utility power [1.85m,  
6' long]  
The REF1000’s power supply is pre-  
set for the proper AC line voltage  
before you receive it. The power  
cable will have the correct plug for  
your local power system. If you  
believe this is not true, please con-  
tact your dealer immediately. Do not  
attempt to alter or change power  
settings yourself. This will void the  
warranty.  
1 – REF1000 Amplifier.  
1 - Owner's Warranty /  
Registration Sheet  
Carefully inspect your new unit and  
check for shipping damage. If there is  
any damage, or if any piece is miss-  
ing, please contact your dealer, dis-  
tributor or Bel Canto Design.  
Warning!  
Do not connect power to this amplifier yet!  
This amplifier, like any electrical component, can be dangerous and cause injury  
unless correct handling procedures are observed and used. Before powering this  
preamplifier it is necessary to read and follow proper procedures concerning its  
setup and use.  
Any tampering of internal parts will immediately void your warranty.  
USA customers: For Warranty Coverage complete and mail the Owner's  
Registration Papers immediately.  
© 2005 bel canto design, Ltd.  
page 5  
REF1000 User’s Guide 1105 Rev.A  
 
Rear Panel Connections  
REF1000 Rear Panel  
Never Connect Either the Positive or Negative Speaker Output to  
Any Ground Contact!  
Connecting any Speaker Output on the REF1000 to Ground will cause the amplifi-  
er to go into protection and could damage the amplifier and void the warranty.  
1) Power Switch: Power is on when the  
switch is toggled to the I position  
and off in the O position.  
that no phase inversion can occur.  
Never Connect Either the Positive or  
Negative Speaker Output to Any  
Ground Contact!  
2) Input Connections and RCA/XLR  
switch: When using RCA cables for  
the input insure that the RCA/XLR  
switch is pressed in to the RCA posi-  
tion. When using XLR cables insure  
that the switch is out in the XLR  
position. This will generally insure  
ideal grounding and minimize  
ground noise from interfering with  
the audio signal.  
4) IEC power cord jack: Connect a  
heavy gauge power cord from  
this jack to the wall power supply.  
Note the power setting indicated  
on the back of the amplifier before  
connecting the power.  
When all connections to and from the  
amplifier have been made then double  
check everything, insure that the pre-  
amplifier is powered on and set to a  
Mute setting and power on the  
REF1000.  
3) Output Connections: Attach your  
loudspeaker to the output connec-  
tors, insure that the polarity of each  
speaker is correct and the same so  
© 2005 bel canto design, Ltd.  
page 6  
REF1000 User’s Guide 1105 Rev.A  
 
What to do if there is hum or ground noise:  
1) Check that the RCA/XLR switch is in  
the correct position for the type of  
connection being used.  
possibility for ground current noise  
being induced into the audio signal  
path. If you choose to power your  
source and preamplifier components  
from a different AC supply than used  
for the REF1000 amplifiers, we recom-  
mend that you use a high quality bal-  
anced XLR cable driven from a true  
balanced XLR preamplifier output. We  
do not recommend that you resort to  
‘cheater plugs’ or some other means  
to disconnect the power ground from  
the REF1000 as this may lead to dan-  
gerous operation and void the warran-  
ty.  
2) Insure that the preamplifier or any  
source components are not produc-  
ing hum by setting the preamplifier  
to a MUTE or Standby setting.  
3) The design of the REF1000 reduces  
the chance for ground loop induced  
hum but we still recommend that you  
use shorter interconnect cables to the  
preamplifier and connect all power  
cables to a common outlet box or  
power conditioner unit to reduce the  
Front Panel Indicator Lamp  
The small blue LED lamp indicates that  
the power is connected to the REF1000  
and that the power switch is in the ON  
position. If the amplifier detects a fault  
or short circuit in the output connec-  
tions then it will go into a protection  
mode and stop playing. If this occurs  
toggle the power switch to the OFF  
position and check the speaker cabling  
to insure that no speaker output is  
either shorted together or connected to  
a ground. When you are certain that  
the loudspeaker cabling is correct,  
power the unit ON again and insure  
that the Blue lamp is lit and that music  
will play.  
Fuse Protection  
There is an internal fuse protection on  
the REF1000. If the power switch is in  
the ON position, the power cable is  
connected to a functioning power out-  
let at the correct voltage and the Blue  
lamp is not lit,this indicates that the  
internal fuse may have blown. If this  
occurs contact your dealer, distributor  
or Bel Canto for service. There are no  
user replaceable fuses or other parts.  
Opening the chassis will void your  
warranty.  
© 2005 bel canto design, Ltd.  
page 7  
REF1000 User’s Guide 1105 Rev.A  
 
Specifications  
Power Output: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >1000W into 4 ohms, >500W into 8 ohms  
Minimum Load: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ohms  
Frequency Response: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/-0.5dB 20Hz-20KHz, all loads  
THD+N: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.007% 1W, 1KHz, 4 ohms  
IMD (CCIF): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0007%, 1W, 14:15KHz, 4 ohms  
Output noise: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90uVRMS A-weighted 10Hz-20KHz  
Voltage gain: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27dB (single ended or balanced input)  
Damping factor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >1000  
Output Impedance at 100Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<8 milliohms  
Dynamic Range: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120dB  
Input Voltage for Max Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Vrms  
Input connections: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single-ended RCA or balanced XLR  
RCA input impedance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Kohms  
Balanced input impedance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Kohms  
Output connections: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-set WBT 5-way safety binding posts  
Standby Power: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15W  
Size: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5x3x12[inches], 216x76x305[mm] (WxHxD)  
Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13lbs, 6Kg  
Features and specifications are subject to improvements and changes without prior notice.  
© 2005 bel canto design, Ltd.  
page 8  
REF1000 User’s Guide 1105 Rev.A  
 
Bel Canto Design, LTD.  
212 Third Avenue North  
Minneapolis, MN 55401  
Phone: (612) 317.4550  
Fax: (612) 359.9358  
©2005 Bel Canto Design, LTD  
e.One™ is a trademark of Bel Canto Design, LTD  
 

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