Musical Fidelity X-P200 User manual

X-P200
MODEINPUT
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.
POWER AMPLIFIER
Issue 3 Sept 2004 X-P200 PowerAmplifier Page 1 of 7
X-P200

IMPORTANT! (U.K. only)
This unit is supplied in the U.K. with a mains lead fitted with a moulded 13 amp plug.
If, for any reason, you need to cut off this plug, please remove the fuse holder and dispose of
the plug safely, out of reach of children. It must not be plugged into a mains outlet.
The wires in the mains lead supplied with this appliance are coloured in accordance with
the following code:
Green and yellow..............Earth
Blue...............................Neutral
Brown................................Live
WARNING - This appliance must be earthed
As the colours of the wires of the mains lead of this appliance may not correspond with the
coloured markings identifying the terminals in your plug, proceed as follows:
The wire which is coloured green-and-yellow must be connected to the terminal in the plug
which is marked with the letter E or coloured green or green-and-yellow, or by the earth
symbol:
The wire which is coloured brown must be connected to the terminal which is marked with
the letter L or coloured red.
The wire which is coloured blue must be connected to the terminal which is marked with the
letter N or coloured black.
If connecting to a BS1363 plug, a 13 amp fuse must be used.
SAFETY INFORMATION
X-P200 Power Amplifier Page 7 of 7Page 2 of 7 X-P200 Power Amplifier
WARNING:
Any modifications to this product not expressly approved by Musical Fidelity who
is the party responsible for standards compliance could void the user’s authority to
operate this equipment.
Your new X-P200 is designed and built to provide trouble-free performance, but as with all
electronic devices, it is necessary to observe a few precautions :
Do not use the X-P200 near water. The unit must not be exposed to dripping or splash
ing and no objects filled with liquids, such as vases, must be placed on the unit.
Keep the X-P200 away from heat such as radiators. No naked flame sources, such as
lighted candles, should be placed on the unit.
Place all connecting cables where they are not likely to be walked on or trapped by items
placed on them.
Output :
Power, stereo mode : 125 Watts, one channel loaded into 8 Ohms
(21dBW)
Power, bridge mode : 260 Watts into 8 Ohms (24dBW)
Voltage RMS, stereo mode : 31.6 Volts 20Hz to 20kHz, one channel loaded
Voltage peak, stereo mode : 44.5 Volts, one channel loaded
Current peak-to-peak (unlimited) : 75 Amps
Damping factor, stereo mode : 200
Output devices per channel : 4 (stereo), 8 (bridge)
Line inputs :
Total harmonic distortion + noise : < 0.015 20Hz to 20kHz
Signal / noise ratio : > 107dB ‘A’-weighted
Input sensitivity for 125W, 8 Ohms : 1 Volt
Input impedance : 27k Ohms in stereo mode, 220k Ohms bridge mode
Channel separation : > 70dB typical
Frequency response : 20Hz to 20kHz, + 0, - 0.1dB
Input facilities : “A” 1 pair RCA connectors, selectable from front panel
“B” 1 pair RCA connectors, selectable from front panel
Output facilities : 2 amplifier channels or 1 channel in bridge mode
(switchable from front panel) via 1 pair per channel
binding posts.
1 pair RCA loop output sockets
Power requirement : 100 / 115 / 230Volts AC 50 / 60Hz (factory pre-set),
600 Watts maximum (bridge mode) into 8 Ohms,
30 Watts idle.
Dimensions : 218mm, 8.6 inches wide
98mm, 3.8 inches high (including feet)
339mm, 13.4 inches deep (including knob
and rear terminals)
Weight : 6.1 kg, 13.4 lbs unit only, unboxed
7.15 kg, 15.8 lbs in shipping carton
Standard accessories : IEC type mains lead (10-Amp type)
Musical Fidelity reserves the right to make improvements which may result in specification
or feature changes without notice.
X-P200 SPECIFICATIONS

X-P200 Power Amplifier Page 3 of 7Page 6 of 7 X-P200 Power Amplifier
INTRODUCTION
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.
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.
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 Boperation is not possible.
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).
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.
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.
(continued) . . .
If in doubt about bi-amplification, please
contact your dealer for advice.
BEFORE SWITCHING ON . . . .
Plug the accessory IEC mains lead into the
rear panel socket, then the other end into a
wall outlet.
Turn the volume control on your pre-
amplifier to minimum.
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.
Press the INPUT selector button on the front
panel to switch between Aand Binput as
required. A corresponding blue LED above
the button will light to confirm your
selection.
Now adjust the volume control on your pre-
amplifier to obtain the preferred sound level.
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.
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
OPERATION FACILITIES (see page 6)
X-P200
MODEINPUT
Power indicator
LED (blue)
Power on/off push-
button switch Loudspeaker mode
push-button switch
Input mode
push-button switch
Mute indicator
LED (red) Input indicator
LEDs (blue)
Loudspeaker
mode indicator
LEDs (blue)

All input, output and power
connections should be made with the
mains power switched OFF.
LOUDSPEAKER CONNECTIONS
LOUDSPEAKER CONNECTIONS
CONNECTIONS
X-P200 Power Amplifier Page 5 of 7Page 4 of 7 X-P200 Power Amplifier
INPUT
INPUT CONNECTIONS CONNECTIONS
Using good quality co-axial audio leads,
connect the left and right outputs from
your pre-amplifier or other controlled
source to either Aor BRCA inputs.
OUTPUT
OUTPUT
These RCA sockets have “line level”
audio “loop” output routed from either A
or Binput by the selector switch on the
front panel.
They are for onward connection to
another amplifier if required.
(See page 6 under BI-AMPLIFICATION).
IEC mains power inlet
The X-P200 is a stereo amplifier, but can
instead be used in “bridge” mode to obtain a
single (mono) output with higher power.
However, do not attempt both speaker
connection methods at the same time.
Conventional stereo use :
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.
Bridge mode :
Connect a single (mono) loudspeaker
between LEFT and RIGHT red (+)
terminals only
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.
Important :
* The load impedance must not be less
than 4 ohms.
* Do not make any earth connection to
the speaker terminals.