Musical Fidelity Stereo Amplifier X P200 User Manual

X- P 2 0 0  
POWER AMPLIFIER  
INPUT  
MODE  
X- P 2 0 0  
INSTRUCTIONS FOR USE  
Thank you for purchasing the Musical Fidelity  
X-P200 power amplifier.  
Used properly and carefully, it should give you many years of  
outstanding musical reproduction.  
Aesthetically, the X-P200 power amplifier is a perfect match for the  
X-Pre V3 pre-amplifier and X-RAY V3 CD player.  
Together, they form one of the finest hi-fi systems available.  
Dust regularly with a soft cloth or soft brush, but be careful when  
using cleaning or polishing agents - they may harm the surface finish.  
If you have any questions about your audio system,  
please consult your dealer who is there to help and advise.  
Issue 3 Sept 2004  
X-P200 PowerAmplifier  
Page 1 of 7  
 
OPERATION  
FACILITIES (see page 6)  
INTRODUCTION  
If in doubt about bi-amplification, please  
contact your dealer for advice.  
Your X-P200 can be connected either as a  
conventional stereo amplifier, or  
alternatively in “bridge” mode as a mono  
amplifier with higher output power - see  
page 4 and 5 for connection details.  
BEFORE SWITCHING ON . . . .  
Plug the accessory IEC mains lead into the  
rear panel socket, then the other end into a  
wall outlet.  
It is intended for use with a pre-amplifier  
or similar audio level source with a volume  
control. We highly recommend the  
matching X-Pre preamplifier also available  
from Musical Fidelity.  
Turn the volume control on your pre-  
amplifier to minimum.  
Loudspeaker  
Power indicator Mute indicator  
LED (blue) LED (red)  
Input indicator  
LEDs (blue)  
mode indicator  
LEDs (blue)  
Two stereo pairs of RCA audio input  
sockets marked “A” and “B” on the rear  
panel allow a choice between either of  
these input sources. Simultaneous mixed A  
and B operation is not possible.  
OPERATION  
Press the POWER button on the X-P200  
amplifier - the blue power LED on the front  
panel will light indicating that the unit is  
ready for use. However, for about six  
seconds no sound will be heard from your  
speakers, and the red mute LED will be lit,  
confirming initial mute action.  
Whichever input is chosen, a fixed “line  
level” audio output from the selected  
source is available from the adjacent  
OUTPUT RCA sockets for onward  
connection to another amplifier. This is to  
allow for “bi-amplification” (see below).  
INPUT  
MODE  
Press the INPUT selector button on the front  
panel to switch between A and B input as  
required. A corresponding blue LED above  
the button will light to confirm your  
selection.  
X- P 2 0 0  
BI-AMPLIFICATION  
The X-P200’s OUTPUT sockets allow “bi-  
amplification” of a speaker system using  
suitable external amplifiers and crossover  
networks. This enables the speaker drive  
units to be powered separately, giving  
noticeable improvement in clarity, imaging  
and bass weight.  
Now adjust the volume control on your pre-  
amplifier to obtain the preferred sound level.  
Power on/off push-  
button switch  
Input mode  
push-button switch  
Loudspeaker mode  
push-button switch  
If “bridge” loudspeaker operation is required,  
press the MODE button on the front panel to  
switch over to this function. A  
corresponding blue LED above the button  
will light to indicate which system is in use.  
Press the MODE button again to revert to  
normal stereo.  
In this arrangement, typically one X-P200  
is used to drive the “tweeter” (high  
frequencies), and another to drive the  
“woofer” (low frequencies) of each  
loudspeaker enclosure. Thus, two X-P200s  
would be needed for a stereo pair, or four  
in bridge mode.  
Please note that if STEREO mode is  
accidently selected with the speakers wired  
for “bridge” operation, sound will be  
distorted, and lack bass. Similarly, if  
switched to BRIDGE mode with speakers  
wired for stereo operation, sound quality will  
(continued) . . .  
Page 6 of 7  
X-P200 Power Amplifier  
X-P200 Power Amplifier  
Page 3 of 7  
 
CONNECTIONS  
INPUT CONNECTIONS  
All input, output and power  
connections should be made with the  
mains power switched OFF.  
Using good quality co-axial audio leads,  
connect the left and right outputs from  
your pre-amplifier or other controlled  
source to either A or B RCA inputs.  
IEC mains power inlet  
OUTPUT  
These RCA sockets have “line level”  
audio “loop” output routed from either A  
or B input by the selector switch on the  
front panel.  
They are for onward connection to  
another amplifier if required.  
(See page 6 under BI-AMPLIFICATION).  
LOUDSPEAKER CONNECTIONS  
Bridge mode :  
The X-P200 is a stereo amplifier, but can  
Conventional stereo use :  
Important :  
instead be used in “bridge” mode to obtain a  
single (mono) output with higher power.  
* The load impedance must not be less  
than 4 ohms.  
Connect each of your loudspeakers to the  
pair of terminals on the back panel marked  
LEFT and RIGHT SPEAKER OUTPUT.  
The wiring must be “in phase”, namely, the  
red (+) and black (-) terminals must be  
connected to the left and right speakers the  
same way round.  
Connect a single (mono) loudspeaker  
between LEFT and RIGHT red (+)  
terminals only  
However, do not attempt both speaker  
connection methods at the same time.  
* Do not make any earth connection to  
the speaker terminals.  
Note that in this mode, the right-hand  
channel red terminal becomes negative (-)  
for phasing purposes. This is important for  
maintaining correct phase with any other  
amplifier being used in your audio system.  
Page 4 of 7  
X-P200 Power Amplifier  
X-P200 Power Amplifier  
Page 5 of 7  
 

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