background image

 

 

12 

Note:  The  position  of  the  Balanced  Input  switch  has  no  bearing  on  the 

balanced output, it only selects which input to use for input  A.  Set the 
Balanced Input switch to ON only when using the balanc ed input.... 

 

Refer  to  Chapter  13  “Specifications”,  for  detail  on  input  sensitivity  and 
impedance. 

  Unbalanced Source Inputs 

Accepts  a  standard  single-ended  input  (RCA)  from  source  components  with 
single-ended  analogue  outputs.    These  high  quality  gold  plated  sockets  are 
highly  conductive,  corrosion  resistant,  and provide  less potential  for  corrosion 
induced distortion. 

Caution!  Input  D  fixes  the  output  to  0dB,  as  it  is  a  home  theatre  bypass.    Please 

ensure  the  level  is  suitably  attenuated  by  the  upstream  processor  or 
receiver before s electing this input. 

Refer  to  Chapter  13  “Specifications”,  for  detail  on  input  sensitivity  and 
impedance. 

  Tape 1 Line Outputs 

This single-ended (RCA) output will provide a line level audio signal, suitable 
for recording, from the selected source input.  This output is disconnected when 
source input E is selected; to prevent any potentially damaging feedback loops. 

  Tape 2 Line Outputs 

This single-ended (RCA) output will provide a line level audio signal, suitable 
for recording, from the selected source input.  This output is disconnected when 
source input F is selected; to prevent any potentially damaging feedback loops. 

  Preamp Output 1 

This single-ended (RCA) output is commonly referred to as “Preamp Out”.  It 
will  provide  the  audio  signal  required  to  drive  virtually  any  amplifier  to  full 
power. 

  Preamp Output 2 

This single-ended (RCA) output is wired in parallel with M ain Output 1 and is 
useful for supplying signal to another amplifier if bi-amping. 

  Balanced Outputs 

This  balanced  (XLR)  preamplifier  output provides  the signal  required  to  drive 
virtually  any  power  amplifier  equipped  with  a  balanced  input.    Connection 
should be made with high quality cables fitted with XLR connectors. 

Note:  The  position  of  the  Balanced  Input  switch  has  no  bearing  on  the 

balanced output; it only selects which input to use for source input A.

 

 

 
 
 

Summary of Contents for SM6 MKII

Page 1: ...Prisma SM6 MkII Balanced Preamplifier Owners Manual...

Page 2: ...change products or specifications detailed herein at any time without notice and does not make any commitment to updatethe information contained herein No licenses to patents or other intellectual pr...

Page 3: ...sonic realism and electronic reliability with a functional yet elegant appearance that reflects the care and craftsmanship applied during all stages of construction Features at a Glance Rugged build q...

Page 4: ...ibed in the operating instructions or as marked on the rear of the unit DO NOT disconnect the mains earth from the system The mains power supply cord should be routed so that it is not likely to be wa...

Page 5: ...4 4 4 4 Rear Panel Functions 11 5 5 5 5 Remote Control Functions 15 6 6 6 6 Special Design Philosophies 18 7 7 7 7 Special Design Features 20 8 8 8 8 Maximising System Potential 21 9 9 9 9 Care and M...

Page 6: ...n Remove the two grey foam protectors off either side of the unit leaving the black material covering Pull back the material and remove the protective membrane from the front panel The preamplifier is...

Page 7: ...plifier Connect the balanced XLR or unbalanced RCA outputs of your SM6 to the appropriate inputs at the rear of your power amplifier Note Try to keep all interconnect cables as far from loudspeaker ca...

Page 8: ...our source material Start your source material playing Increase the volume Slowly increase the volume on the SM6 to achieve a comfortable listening level CONGRATULATIONS Now that you have achieved you...

Page 9: ...play and operation can be resumed by pressing buttons simultaneously again Refer to Chapter 5 Remote Control Functions for further details on volume and standby controls Alphanumeric Display The displ...

Page 10: ...t to avoid the potentially damaging feed back loop which can occur if inadvertently attempting to record and playback the same source simultaneously Mute Pressing the buttons simultaneously will mute...

Page 11: ...cancellation of distortion products The pin assignments of the balanced XLR input connectors are as follows Pin 1 Signal ground Pin 2 Signal non inverting Pin 3 Signal inverting Shield ground Chassis...

Page 12: ...able for recording from the selected source input This output is disconnected when source input E is selected to prevent any potentially damaging feedback loops Tape 2 Line Outputs This single ended R...

Page 13: ...act your Perreaux dealer Qualified service personnel can only perform this modification Caution Never attempt to connect the unit to the incorrect voltage Severe damage can result from applying incorr...

Page 14: ...lace with the same type and value fuse Remember fuses do not usually blow without a reason Any doubts about fuse failure should be conveyed directly to your Perreaux dealer For more information on fus...

Page 15: ...unch through function and will operate regardless of the code set selected i e you can be operating the CD player remote functions and still use the mute control without selecting the button first Dis...

Page 16: ...trol selects source input D This offers a preamplifier bypass for home theatre applications Home theatre bypass mode is indicated by HT on the display of the SM6 Note Volume and balance functions are...

Page 17: ...Source Up Pressing this button scrolls the source input up selecting in the order IA IB IC HT IE IF Scroll Source Down Pressing this button scrolls the source input down selecting in the order IA IF I...

Page 18: ...design perspective only The concept of less equating to more has been at the heart of all Perreaux audio designs for more than a quarter of a century Minimalist Electronics We wish to maximise the qu...

Page 19: ...products on the planet We let form and function blend together in perfect harmony This surely is the essence of true minimalist utilisation Minimalism in a Wider Context John Pawson writes Clearly si...

Page 20: ...ogy another for the digital logic and the final power supply looks after the input relays The advantage of this is that there is complete isolation from stage to stage The digital noise is kept comple...

Page 21: ...e input sensitivity so that when the same input signal is provided to each of them the output level will be exactly the same This can often be done with one power amplifier connected to the tweeters a...

Page 22: ...e with your particular priorities The best advice we can give concerning the choice of loudspeakers is establish clearly in your mind your requirements listen to many makes and models and if at all po...

Page 23: ...by the application of a small quantity of methylated spirits applied directly to the cleaning cloth only and reworking the effected area Front Panel The SM6 front panel features a high quality electr...

Page 24: ...it will be repaired or replaced at our option without charge for either parts or labour The warranty does not apply to any unit that has been misused abused or altered Any unit that is not performing...

Page 25: ...Perreaux Industries Ltd PO Box 305 Mosgiel Dunedin 9053 New Zealand E mail info perreaux com Alternatively complete the online Warranty Registration Form on our website www perreaux com 5 Year Extende...

Page 26: ...must be employed to negate these effects on low level signal equipment Another good practice to adopt is to keep all signal leads away from power leads The practice of neatly tying excess leads togeth...

Page 27: ...experiencing a problem such as one channel not working or a noise in one channel it is good practice to adopt a method of isolating the problem to a specific item or area This practice will assist in...

Page 28: ...now swapping them at the amplifier output If the fault now appears in loudspeaker B then that loudspeaker lead is at fault go no further If the fault appears in loudspeaker A then loudspeaker leads ar...

Page 29: ...out at a minimum volume setting Only increase the volume after the connections have been changed Should the fault prove to be in the amplifier it will be necessary to determine where the fault actual...

Page 30: ...estore speaker cablesto original connections Fault in loudspeaker B Swap amplifier source input channels Loudspeaker A at fault YES NO Loudspeaker cable at fault Fault in loudspeaker A Swap source out...

Page 31: ...after a 10 minute warm up period Specifications In Brief Rated Output Unbalanced 1 5VRMS Balanced 1 5VRMS Maximum Output Unbalanced 3 3VRMS Balanced 6 8VRMS Gain Range 97dB to 18dB Gain Resolution 1 5...

Page 32: ...er serviceable Weight Net 7 7kg 17 0lb Gross 10 7kg 23 6lb Specifications Explained Rated Output 1 5VRMS The SM6 has been designed to drive any amplifier to it s full potential Even with an input leve...

Page 33: ...imes higher thus exceeding the audible range of the human ear Signal to Noise Ratio unweighted 100dB The ratio of desired signal to noise signals present in the output The balanced circuit topology of...

Page 34: ...its rated output even from the lowest of input levels Input Overload 3 9VRMS Input Overload specifies the maximum signal level that each input circuit can handle without overloading the preamplifier c...

Page 35: ...35 14 14 14 14 Physical Dimensions...

Page 36: ...ails For more information please contact your Perreaux dealer or contact Perreaux Industries Ltd PO Box 305 Mosgiel Dunedin 9053 New Zealand Ph 64 3 489 2975 Fax 64 3 489 2976 E mail info perreaux com...

Page 37: ...37 Installation Notes...

Reviews: