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Page 6 of

 

13 

INSTALLATION

Introduction 

Congratulations on the purchase of the new M8s 700m power amplifier. Great attention has been paid to internal 

layout, isolating each circuit section to prevent possible interaction. 

 The  unit  features  two  monoblock  high  current  amplifiers  with  paralleled  supplies  for  the  absolute  best  in 

transients and dynamics. Generously rated, they are enough to drive even the most demanding loudspeakers 

with ease. Low distortion and very quiet they will deliver all music types exactly as the artist originally intended. 

The resultant performance achieved by this unit is among the best in the world. It has excellent signal to noise 

ratio, low distortion, wide bandwidth and dynamic range, with extraordinary resolution and fine detail. 

Cleaning 

Before cleaning the unit, switch off power at the mains switch and remove the mains plug from the wall socket. 

Clean  the  cabinet  and  remote  control  unit  using  a  moist  cloth.  Using  solvents,  white  spirit  or  thinners  is  not 

advised, as they could damage the surface finish. 

Installation 

Position the M8s 700m on a stable, horizontal surface where there is no risk of it being knocked, or subjected to 

vibration such as from loudspeakers. 

Important note: 
In  normal  operation,  the  unit  dissipates  a  significant  quantity  of  power  at  all  times,  and  it  is 

important that it is adequately ventilated. The top and bottom are ventilated to allow the smooth 

flow  of  heat  through  the  unit.  It  is  therefore  not  recommended  that  the  unit  is  enclosed  in  a 

cabinet or placed where the ventilation holes are impeded as this could result in excessive heat 

build-up.  
The M8s 700m must be protected from humidity – if the unit is moved from a cold place to a warm 

room, leave the unit for an hour or so to allow sufficient time for the moisture to evaporate. 

Power Connections 

The M8s 700m is supplied with a standard IEC mains cable which plugs into the IEC socket

        at the back of the 

unit (see page 7) 

Audio Connections 

XLR Inputs:

 Connect any XLR balanced source to balanced analogue input (see page 7 for more information). 

Use good quality fully connected (signals and ground) balanced XLR cables for all XLR signal connections. 
 The  balanced  input  and  outputs  sockets  are 

fully  balanced

,  i.e.  there  is  signal  on  both 

hot

  and 

cold

  signal 

terminals.  Please  ensure  for  maximum  benefit,  that  any  balanced  leads  used  with  this  product  are  fully 

connected both ends and that the cold lead is separate from ground connection. Consult lead manufacturer if 

there is any doubt. 

RCA Inputs:

 Connect RCA single-ended source to relevant analogue input (see page 7 for more information). 

Use good quality fully connected (signal and ground) coaxial phono cables for all RCA signal connections.  

SPEAKER  OUTPUTS:

  Connect  loudspeaker(s)  to  the  terminals  on  the  back  panel  marked  as 

SPEAKER 

OUTPUTS.  
LOOP OUT: 

loop

 

outputs (XLR and RCA) allow the input signals to be passed on to a second amplifier, or other 

component. This is useful for example, for bi-amping. 

Cables  note:  Musical  Fidelity  currently  do  not  make  any  interconnecting  cables,  nor  do  we  endorse  any 

particular third-party manufacturer’s cables. If advice is required, please refer to the Musical Fidelity dealer who 

can demonstrate suitable quality cable(s) for any particular setup.

 

Trigger connections 

Trigger input:

 Connect trigger output of controlling device to input socket. Use good quality 3.5mm jack cables 

(fully connected signal and ground) Unit accepts ±4 to ±15V DC trigger inputs. The M8

s

 700m PWR can then be 

switched on or off by remote device(s) connected to its trigger input. 

Trigger  output:

  Connect  trigger  input  of  controlling  device  to  output  socket.  Use  good  quality  3.5mm  jack 

cables (fully connected signal and ground). The M8

s

 700m PWR then becomes the main controlling device and 

its power button will automatically switch on/off all devices thus connected to the trigger output. 

Summary of Contents for M8s 700m

Page 1: ...amplifiers is achieved using a high performance fully balanced converter circuit with wide flat frequency response uniform in band characteristics and immeasurably low distortion and noise Fully balanced as well as single ended inputs are catered for with loop outputs for both types for bi amping etc Trigger input output allows the unit to be controlled controller for switch on off function This c...

Page 2: ...sal information EU disposal information 5 Installation Introduction cleaning installation power connections audio connections 6 Facilities and connections Illustrations main unit front rear panels 7 Operation Single ended RCA input Balanced XLR input Speaker Bi wiring Starting 8 9 10 Problems Basic fault finding 11 Specifications 12 Manual history 13 ...

Page 3: ...is appliance may not correspond with the coloured markings identifying the terminals in the 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 ...

Page 4: ...m Do not use near water or place water filled containers on the M8s 700m for example a flower vase or potted plants If water does spill inside immediately pull out the mains plug from the wall socket and inform the dealer who should then check the unit before further use Entry of liquid into the M8s 700m is dangerous and may cause electric shock or fire hazard Do not place the unit near direct hea...

Page 5: ...ACHGERECHTE ENTSORGUNG Das auf der Geräterückseite angebrachte Label deutet darauf hin dass das Produkt nicht mit konventionellem Hauskehricht entsorgt werden darf Um Schäden und Verschmutzungen an Umwelt und Mensch zu vermeiden muss das Produkt fachgerecht entsorgt und von anderem Abfall getrennt werden Wenden Sie sich bei Fragen hierzu an Ihren Fachhändler oder an eine öffentliche Informationsst...

Page 6: ...700m is supplied with a standard IEC mains cable which plugs into the IEC socket at the back of the unit see page 7 Audio Connections XLR Inputs Connect any XLR balanced source to balanced analogue input see page 7 for more information Use good quality fully connected signals and ground balanced XLR cables for all XLR signal connections The balanced input and outputs sockets are fully balanced i e...

Page 7: ...na 6 TRIGGER output jack socket 7 BALANCED XLR female input 8 BALANCED XLR male loop output 9 BALANCED RCA Selector 10 RCA input socket 11 RCA loop output socket 12 IEC MAINS INPUT Pin functions 1 Ground cable shield 2 Signal normal polarity or hot XLR Balanced input and output lead connections for reference no XLR signal leads supplied 3 Signal inverted polarity or cold ...

Page 8: ...m above shows the speakers connected to the LEFT hand output posts It is also perfectly acceptable to use the RIGHT hand output posts as they are exactly the same connection internally IMPORTANT BALANCED RCA switch The BALANCED RCA switch see page 7 is included to minimise noise when using the unit in RCA mode In most cases it will operate in BALANCED position on RCA inputs with no appreciable aud...

Page 9: ...t Pre amplifier RIGHT XLR output XLR signal leads connection diagram Trigger and mains leads omitted for clarity Note The two RED speaker terminals are internally connected together Similarly the two BLACK speaker terminals are also internally connected together The diagram above shows the speakers connected to the left hand output posts It is also perfectly acceptable to use the right hand output...

Page 10: ...e visible under the speaker s terminals as gold plates bars connecting the terminals up in pairs Please consult speaker manuals user support for more details RIGHT Speaker HF HF LF LF LEFT Speaker HF HF LF LF Bi wiring speaker leads connection diagram Preamp trigger and mains leads omitted for clarity Starting Once all connections are made switch on the unit using the POWER button front of the uni...

Page 11: ...when bi wiring or bi amping that speaker bass and treble linking straps are removed see speaker manual for more information Sound is not precise lacking in bass and stereo image Speakers are connected out of phase i e connections to one speaker and are reversed Ensure speakers are connected with same polarity at amplifier and speaker ends Hum Audio connector plug not fully pushed in Cable Fault Un...

Page 12: ...onnector Speaker outputs 2 pairs 4mm banana plug binding posts Trigger input 3 5mm mono jack 4 5 to 15V DC Trigger output 3 5mm mono jack 12V DC Power requirement Mains voltages 115 230VAC 50 60Hz factory pre set 100VAC 50 60Hz alternative 5 2 0 n o i t p m u s n o C Watts standby Orange LED lit 140 Watts on idle Blue LED lit no signal output 1500 Watts maximum Blue LED lit full power output Weigh...

Page 13: ...Issue 1 Page 13 of 13 MANUAL HISTORY RELEASE DATE CHANGES Issue 1 1st release 21st August 2018 ...

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