X-80 SPECIFICATIONS
X-80
Output : Voltage RMS :
21 Volts 20Hz to 20kHz, one channel loaded
59 Volts
55 Watts one channel into 8 Ohms (17.4dBW)
85 Watts one channel into 4 Ohms
Peak :
Power :
DUAL MONO INTEGRATED AMPLIFIER
Peak-to-peak output current :
28 Amps
Damping factor :
77
Output devices per channel :
Pre-output impedance :
2
50 Ohms
Line inputs :
Total harmonic distortion + noise :
Signal / noise ratio :
Input sensitivity for 55Watts, 8 Ohms :
Input impedance :
< 0.02% 20Hz to 20kHz
> 93dB ‘A’-weighted
175mV
220k Ohms
Overload margin :
29dB
Channel separation :
> 55dB typical
Frequency response :
20Hz to 20kHz, + 0, - 0.4dB
Input facilities :
4 pairs line level RCA connectors
Output facilities :
2 amplifier channels via 1 pair per channel binding posts.
1 pair RCA audio outputs controlled by the volume,
1 pair RCA tape record fixed line level output.
INSTRUCTIONS FOR USE
Power requirement :
Dimensions :
100 / 115 / 230Volts AC 50 / 60Hz (factory pre-set),
190 Watts maximum into 8 Ohms, 15 Watts idle.
Thank you for purchasing the Musical Fidelity
X-80 Integrated amplifier.
218mm, 8.6 inches wide
98mm, 3.8 inches high (including feet)
339mm, 13.4 inches deep
Used properly and carefully, it should give you many years of
outstanding musical reproduction.
(including knob and rear terminals)
Aesthetically, the X-80 Integrated amplifier is a perfect match for the
X-RAY CD player and X-PLORA FM tuner.
Weight :
6.5 kg, 14.3 lbs unit only, unboxed
8 kg, 17.7 lbs in shipping carton
Together, they form one of the finest hi-fi systems available.
Standard accessories :
IEC type mains lead (10-Amp), remote control,
2 batteries size LR03 or AAA, manganese alkaline type
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.
Musical Fidelity reserves the right to make improvements which may result in specification
or feature changes without notice.
X-80 Integrated Amplifier
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X-80 Integrated Amplifier
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Issue 4 May 2004
CONNECTIONS
GENERAL ADVICE
INSTALLATION PRECAUTIONS and USER INFORMATION
OUTPUT CONNECTIONS
All input, output and power connections
should be made with the mains power
switched OFF.
Your new X-80 Integrated amplifier is designed and built to provide trouble-free performance,
but as with all electronic devices it is necessary to observe a few precautions:
Connect your loudspeakers to the pairs of
terminals on the back panel marked as
LEFT and RIGHT SPEAKER outputs.
Note: the combined load impedance
must not be less than 4 ohms.
Heed all warnings shown on the back of the product.
INPUT CONNECTIONS
Only connect the X-80 Integrated amplifier to a mains outlet having the same voltage as marked
at the back of the unit.
The X-80 has four pairs of “line level”
inputs controlled by the internal volume
setting. They all have the same input
sensitivity, and are therefore suitable for
use with any source component having an
output of at least 300mV. The four left
and right socket pairs on the rear panel
are marked INPUT 1, 2, 3 and 4, corre-
sponding with the blue function indicator
LEDs on the front panel.
Always ensure that when disconnecting and reconnecting your audio equipment the mains
supply is switched off.
PRE-AMPLIFIER OUTPUT
The X-80 amplifier has its pre-amplifier
output available from RCA sockets on
the back panel marked PRE-OUT, and is
controlled by the volume adjustment.
Position the mains lead and signal interconnects where they are not likely to be walked on or
trapped by items placed on them.
Do not use near water, or place water-filled containers on the amplifier, for example, flower
vases or potted plants. If water does spill inside, immediately pull out the mains plug from the
wall socket and inform your dealer, who should then check the unit before further use.
Entry of liquid into the amplifier is dangerous, and may cause electric shock or fire hazard.
This is to allow “bi-amplification” using
suitable external amplifiers and crossover
networks to power the speaker drive
components separately, giving noticeable
improvement in clarity, imaging and bass
weight.
Connect the left and right outputs from
your audio components to each of the
four sets of RCA sockets to suit your
own order of preference.
Do not place the unit near heat sources such as radiators, direct sunlight or other equipment.
The case of this amplifier can run at high temperatures - operate the unit in a well ventilated
area, and do not touch the cabinet sides or top after periods of use at high output power.
Do not remove covers or try to gain access to the inside. There are no internal user adjustments.
Refer all service work to an authorised Musical Fidelity agent.
NOTE: Unauthorised opening of the equipment will invalidate any warranty claims.
In this arrangement, typically the X-80’s
speaker outputs are used to drive the
speaker’s “tweeter” (high audio frequen-
cies), and an external stereo amplifier
drives the “woofer” (low frequencies).
The X-80’s PRE OUT RCA sockets
would therefore be connected to the input
of the external “woofer” amplifier in this
example.
Connect the X-80’s TAPE RECord out-
put sockets to the line input sockets of
the your tape deck.
There are fuses inside the X-80 amplifier. In the unlikely event that one blows, refer the unit to
your audio dealer. Do NOT try to replace the fuses yourself as this will invalidate the warranty.
Dust regularly with a soft cloth or soft brush, but be careful when using cleaning or polishing
agents - they may harm the surface finish.
The electronics in modern hi-fi equipment is complex and may, therefore, be adversely affected
or damaged by lightning. For protection of your audio system during electrical storms, remove
the mains plugs and disconnect any aerial lead.
If you are in doubt about bi-amplifica-
tion, please contact your dealer for
advice.
If after-sales service is required, to help your dealer identify the X-80 Integrated amplifier please
quote the serial number located on the rear panel of the unit.
RADIO FREQUENCY INTERFERENCE (R.F.I)
This product has been tested to ensure that its operation is not adversely affected by normal
background levels of R.F.I., and that it does not itself generate excessive amounts of interference.
However, if a problem persists, please contact your Musical Fidelity agent.
X-80 Integrated Amplifier
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X-80 Integrated Amplifier
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Issue 4 May 2004
CONNECTIONS & FACILITIES
REMOTE CONTROL
REMOTE CONTROL
Buttons on the remote control with blue-grey surround enable main functions of the ampli-
fier to be operated from a convenient distance. Remaining buttons on this universal hand-
set are for use with other Musical Fidelity products, and have no effect on the X-80
Integrated amplifier.
As the remote control uses an invisible infra-red light beam, the transmitter must be pointed
directly towards the receiver window on the front of the amplifier, without visual obstruc-
tion between them.
Pressing button numbers 1, 2, 3 or 4 selects a corresponding amplifier input.
1
2
3
4
5
6
7
8
Pressing the MUTE button mutes the SPEAKER output and PRE-OUT sockets, but has no
effect on the TAPE OUT sockets for recording. To show that the amplifier is muted, the
red LED on the front panel lights. Press the MUTE button again to cancel mute function,
and the red LED will go out.
Front panel layout
1
2
3
4
5
POWER-on indicator LED (blue)
POWER on/off switch
Audio MUTE indicator LED (red)
Volume control
Infra Red Receiver for
remote control
Input select button - up
Input indicator LEDs (blue)
Input select button - down
Pressing the volume-up or -down buttons on the remote handset will advance the motorised
volume control in the required direction. This action also cancels the mute function.
Back panel layout
9
Line level INPUT sockets, 1 to 4
10 TAPE RECord output sockets
11 PRE-amplifier OUTput sockets
12 IEC mains power inlet
13 RIGHT SPEAKER OUTPUT
terminals
If the range of the remote control greatly decreases, replace the batteries with new ones.
Do not mix old and new batteries - two are required, size LR03 or AAA, manganese alka-
line type. Do not dispose of used batteries in a fire.
6
7
8
14 LEFT SPEAKER OUTPUT terminals
10
11
12
9
Input selection buttons,
1 to 4
(Note -
input number 1 does
VOLUME (UP)
50/60Hz
CAUTION
MOUNT UNIT
ON SOLID SURFACE.
DO NOT REMOVE
not have PHONO
function on model
POWER
CONSUMPTION
SCREWS OR COVERS
UNDER ANY
CIRCUMSTANCES.
190
W
VOLUME (DOWN)
NO USER SERVICEABLE
COMPONENTS INSIDE.
REFER SERVICING TO
QUALIFIED ENGINEER.
SEE OWNERS MANUAL
FOR FURTHER INFORMATION.
X-80)
SERIAL
NUMBER
INPUT
1
INPUT 2
INPUT 3
INPUT 4
TAPE REC
PRE OUT
X-80
Audio MUTE button
STEREO INTEGRATED AMPLIFIER
DESIGNED IN ENGLAND BY MUSICAL FIDELITY
BUILT IN TAIWAN
RIGHT SPEAKER OUTPUT
LEFT SPEAKER OUTPUT
13
14
X-80 Integrated Amplifier
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X-80 Integrated Amplifier
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Issue 4 May 2004
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