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Prisma SM6 MkII
Balanced Preamplifier
Owners Manual
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Perreaux Industries Limited makes no warranty for the use of its products, other than those expressly contained in the warranty detailed herein. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change products or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual p
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ii Introducing the Perreaux ii SM6 MkII Preamplifier Congratulations on your Perreaux SM6 MkII purchase. To realise the full potential of your unit you need to appreciate all aspects of its operation. Before installing the SM6 MkII into your system, read the entire manual carefully. Endeavour to understand every detail by familiarising yourself with the controls and features as you read. You will find it easier to install using the relevant sections of this manual as a reference.
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iiii Important Safety Instructions iiii Note: All safety and operation instructions should be read carefully before the SM6 is operated. Keep the Owners Manual in a safe place for future reference. The SM6 should not be used near water, for example near a bathtub, kitchen sink, in a wet basement, near a swimming pool, etc. Mounting to a wall or ceiling should be via a heavy-duty bracket or shelf designed for audio equipment use. The SM6 should be situated away from heat source
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iiiiii Table of Contents iiiiii i i Introducing the Perreaux SM6 Preamplifier...............................................................3 i i i ii i Important Safety Instructions ........................................................................................4 i ii i i ii ii i Table of Contents ..............................................................................................................5 i ii ii i 1 1 Unpacking and Placement.....................................
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1 1 Unpacking and Placement 1 1 The SM6 is packaged for maximum protection. Please carefully read the instructions below before proceeding to unpack the unit. Be extremely careful. Unpacking Inspect both ends of the cardboard box and open at the end without the Procedure central staple by slitting the reinforced tape at either side. Fold back the flaps and tip the package on end and the inner box will slide out. Lay the inner box down flat and upright, open it conventionally by
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2 2 Instant Install 2 2 If you are like us, the first thing you will want to do is to play your favourite piece of music through your new SM6. The following instructions are written to enable you to achieve this as quickly as possible. These are not comprehensive instructions, but are designed to enable you to play music now! Note: Please take the time to read the SM6 manual thoroughly as it incorporates many features, which will enhance its operation. Placement The SM6 is a refer
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Test for undesirable noises Without any program source material, slowly increase the SM6 volume listening for any undesirable noises. After establishing that there are no problems, return the SM6 volume level back to zero. Play your 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 your first objective, sit back, relax and please read the
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3 3 Front Panel Functions 3 3 Volume Control and Standby Volume Control When either button is depressed, they will alter the volume setting. The volume adjustment range is 00 – 59 (-95dB to +18dB), with 47 indicating 0dB. Standby Pressing simultaneously will put the SM6 into standby, disconnecting all power supplies except the digital power supply for the microcontroller and turning off the remote trigger outputs. The selected input and balance settings are saved. Standby is i
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Caution! Input D (HT Loop) 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 selecting this input. Note: The source selector has six positions and supplies the chosen source to the Pre/Balanced outputs and Tape outputs. If source input E or F is selected, no signal is supplied to its applicable Tape output to avoid the potentially damaging feed back loop which can occur if inadvertently
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4 4 Rear Panel Functions 4 4 Caution! Observe precautions regarding volume control settings. Please make all changes at minimum volume setting. Only increase the volume after the connections have been made. Balanced Inputs Accepts a signal from a source component with balanced outputs via high quality XLR connectors. The use of good quality balanced line cable into the balanced input cause the input signal to be relatively immune to noise and external effects caused by the use
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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 balanced 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
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The pin assignments of the balanced XLR output connectors are as follows: Pin 1: Signal ground Pin 2: Signal + (non-inverting) Pin 3: Signal – (inverting) Shield ground: Chassis ground Caution! Please refer to the operating manual of your amplifier to verify that the pin assignments of the input connectors correspond to the SM6 balanced outputs. In the event that they are not compatible, the interconnecting cable will need to be altered to suit. Input Voltage and Fuse Rating
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The plug must follow the specifications as per the diagram below: AC Mains Input An IEC-standard mains input is provided at the rear of the unit. The AC cord set is removable, allowing you to upgrade to a cord set of your preference. Caution! Prior to connection to the AC mains, please check the voltage label on the rear panel to ensure that your unit conforms to the power supply in your area. Never attempt to connect the unit to the incorrect voltage. Severe damage can result f
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5 5 Remote Control Functions 5 5 The SM6 comes supplied with a 36 button Perreaux Universal infrared remote control. The remote control uses 2 x AAA batteries and may be changed by removing the black perspex insert. Note: Press the button on the remote to select the code-set required to control the SM6. The SM6 uses the following functions: Standby Pressing this button puts the SM6 into standby, disconnecting all power supplies except the digital power supply for the micro
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Note: Balance settings are stored when the unit is put into standby. / Input A Source Select Depressing selects source input A and the relevant code-set to control the compact disc player. Pressing selects source input A only. Source input A is indicated by “IA” on the display of the SM6. / Input B Source Select Depressing selects source input B and the relevant code-set to control the tuner. Pressing selects source input B only.
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Scroll 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 IE HT IC IB 17
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6 6 Special Design Philosophies 6 6 Perreaux has been designing and manufacturing only the highest quality audio componentry for more than a quarter of a century. Technology has continued to evolve rapidly over that time and our knowledge and application of design, materials and manufacturing techniques has advanced in tandem with this. Today’s Perreaux range comes closer to fulfilling our shared vision than at any other time in the past. To follow is a discussion on some of Perreaux
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“Form and function” are both tough masters. That is why our amplifier heat sinks are not hidden, but instead feature prominently in all our designs. We make no excuses for producing some of the most distinctive high-end audio 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 simplicity has dimensions to it that go beyond the purel
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7 7 Special Design Features 7 7 Rugged Build Mechanical strength has been a hallmark of Perreaux products since the Quality company first started production back in 1974. The concept behind the physical design and construction is that each structural member should contribute to both rigidity and performance. Balanced The SM6 is a truly balanced preamplifier, from input to output. The positive Design and negative halves of the signal never touch, remaining balanced throughout all stage
