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X-150 SPECIFICATIONS
Output :Voltage RMS : 29 Volts 20Hz to 20kHz, one channel loaded
Line inputs :
Total harmonic distortion + noise : < 0.01% 20Hz to 20kHz
Phono input :
Input facilities : 3 pairs line level RCA connectors,
Output facilities : 2 amplifier channels via 1 pair per channel binding posts.
Power requirement : 100 / 115 / 230Volts AC 50 / 60Hz (factory pre-set),
Dimensions : 218mm, 8.6 inches wide
Peak : 82 Volts
Power : 105 Watts one channel into 8 Ohms (20dBW),
Peak-to-peak output current : 50 Amps
Damping factor : 80
Output devices per channel : 4
Pre-output impedance : 50 Ohms
Signal / noise ratio : > 98dB ‘A’-weighted
Input sensitivity for 105Watts, 8 Ohms :250mV
Input impedance : 220k Ohms
Overload margin : 26dB
Channel separation : > 70dB typical
Frequency response : 20Hz to 20kHz, + 0, - 0.2dB
Frequency response reference
IEC RIAA - see graph . . .
Signal / noise ratio : > 94dB ‘A’-weighted
Input sensitivity : 2.5mV Moving Magnet
Input impedance : 47k Ohms
Overload margin : 24dB
141 Watts one channel into 4 Ohms
25
20
15
10
5
dB
0
-5
10 16 25 40 63 100 160 250 400 630 1.25K 2K 3.15K 5K 8K 12.5K 20K
-10
-15
-20
-25
1 pair phono RCA connectors
1 pair RCA audio outputs controlled by the volume,
1 pair RCA tape record fixed line level output.
320 Watts maximum into 8 Ohms, 32 Watts idle
98mm, 3.8 inches high (including feet)
377mm, 14.9 inches deep
(including knob and rear terminals)
IEC
RIAA
FREQUENCY (Hz)
X-150
DUAL MONO INTEGRATED AMPLIFIER
INSTRUCTIONS FOR USE
Thank you for purchasing the Musical Fidelity
X-150 Integrated amplifier.
Used properly and carefully, it should give you many years of
outstanding musical reproduction.
Aesthetically, the X-150 Integrated amplifier is a
perfect match for the X-RAY Version 3 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.
Weight : 6.5 kg, 14.3 lbs unit only, unboxed
8 kg, 17.7 lbs in shipping carton
Standard accessories : IEC type mains lead (10-Amp), remote control,
2 batteries size LR03 or AAA, manganese alkaline type
Musical Fidelity reserves the right to make improvements which
may result in specification or feature changes without notice.
If you have any questions about your audio system,
please consult your dealer who is there to help and advise.
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IMPORTANT!(U.K. only)
To record, simply select the required source
panel. This source will now be routed to the
You will still also be able to hear the select
Note - adjustment of the volume control has
SAFETY INFORMATION OPERATION
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
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.
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 the front panel
to minimum (anticlockwise).
STARTING. . . .
Press the POWERbutton on the X-150
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.
If PHONO input was selected when previously powered off, there will be an additional muting period of about 10 seconds
before sound can be heard.
Select the required audio input source by
pressing the <or >function button on the
front panel one or more times.
TAPE RECORDING
with the input selector button on the front
X-150’s TAPE RECORD
ing by the external tape deck.
ed source through the loudspeakers.
no effect on the recording level.
WARNING:
The X-150 is a powerful amplifier and must necessarily supply high voltages
through the loudspeaker terminals. Therefore, to avoid any possibility of an
electric shock DO NOTTOUCHTHE SPEAKER TERMINALSwhentheunit
is being used. To comply with BSEN60065 safety regulations, the 4mm “banana”
plug holes have been fitted with plastic blanking pieces. Removal of these will
invalidate any electrical safety approval of this product.
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.
Alternatively, direct access can be obtained
by pressing buttons 1, 2, 3 or 4 on the
remote control. In either case, a corresponding blue indicator LED on the front panel
will light to confirm your choice.
Now adjust the volume control to obtain
the preferred sound level.
Issue 4 May 2004
X-150 Integrated Amplifier Page 7 of 8X-150 Integrated Amplifier Page 2 of 8