Stereo Amplifier User Manual

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Instructions For Use. Page 1

X-AS100

POWER AMPLIFIER

INSTRUCTIONS FOR USE

Thank you for purchasing the Musical Fidelity

X-AS100 Power Amplifier. Used properly and

carefully, it should give you many years of outstanding

musical reproduction.

Aesthetically and electronically the X-AS100 matches

perfectly with the X-P100 Preamplifier, X-RAY CD player

and X-PLORA tuner. Together, they form one of the

finest hi-fi systems available.

The X-AS100 has been designed to be switched on

continuously. The PSU should be positioned as far

away from the X-AS100 as possible. We suggest that the

PSU is placed on the floor near the mains outlet.

Dust regularly with a soft duster or soft brush but be

careful when using cleaning or polishing agents - they may

harm the surface finish.

If you have any questions about anything in your

audio system, please consult your dealer who is there

to help and advise you.

Summary of content (9 pages)

PAGE 1
POWER AMPLIFIER INSTRUCTIONS FOR USE Thank you for purchasing the Musical Fidelity X-AS100 Power Amplifier. Used properly and carefully, it should give you many years of outstanding musical reproduction. Aesthetically and electronically the X-AS100 matches perfectly with the X-P100 Preamplifier, X-RAY CD player and X-PLORA tuner. Together, they form one of the finest hi-fi systems available. The X-AS100 has been designed to be switched on continuously.
PAGE 2
PLEASE READ IMPORTANT! This unit is supplied in the UK with a mains lead fitted with a moulded 13 amp plug. If, for any reason, you need to cut off this plug, please observe the following safety precautions. Please dispose of the cut-off plug safely. It must not be plugged into a mains power supply. 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..................
PAGE 3
CONNECTIONS AND FACILITIES 1 2 FRONT VIEW 1 2 BACK VIEW Left channel power indicator Right channel power indicator 3 8 9 3 4 5 6 7 8 9 10 11 4 10 Right channel input Right channel loop output Mono / Stereo button Left channel input Left channel loop output Right loudspeaker output Right PSU input Left PSU input Left loudspeaker output 5 6 7 11 X-AS100 Instructions For Use.
PAGE 4
INSTALLATION INSTALLATION PRECAUTIONS Your new X-AS100 is designed and built to provide trouble-free performance but as with all electronic devices it is necessary to observe a few precautions. Please ensure that you have complied with them before you connect any AC power to your amplifier. Retain this guide for future reference. þ Heed all warnings on the back of the unit. Do not use near water.
PAGE 5
CONNECTIONS LOUDSPEAKERS To get a realistic soundstage and full dynamic range from your X-AS100, use it with loudspeakers of a reasonable efficiency. An average rating for a loudspeaker these days is about 88dB. This should mean that for an input of 1 watt, measured at 1 metre distance, the sound pressure output will be 88dB. This is the minimum efficiency that we recommend you should use. However, in our opinion, even this is not enough to allow for an adequate dynamic range.
PAGE 6
CONNECTIONS PASSIVE BI-AMPING The X-AS100 has both 'Loop Out' connections and a Mono/Stereo button to allow flexible use in various Bi-amping combinations. In these combinations the X-AS100 is used in conjunction with either another X-AS100 or compatible amplifiers with a gain of 33 such as the X-A50 or X-A200 monoblocs from Musical Fidelity.
PAGE 7
CONNECTIONS Example 2. One X-AS100 with a pair of X-A50s or X-A200s In our second example, a pair of X-A200s are used to drive the bass unit (woofer) of each channel whilst an X-AS100 is used to drive the treble unit (tweeter) of each channel. The X-AS100 is connected to a preamp in the normal way with a pair of phono leads. Then the line input of each X-A200 (or X-A50) is connected to a 'Loop Out' of the X-AS100 with another set of phono leads.
PAGE 8
TROUBLESHOOTING Basic troubleshooting of an amplifier is similar to troubleshooting of any other electrical or electronic equipment. Always check the most obvious possible causes first.
PAGE 9
SPECIFICATIONS X-AS100 POWER AMPLIFIER Power output THD Frequency response Input sensitivity S/N ratio Channel separation Power consumption Dimensions Standard accessories 100 watts per channel, 8Ω < 0.005% at 1kHz < 0.04% 20Hz - 20kHz unweighted < 0.